BELDEN INC. - Quarter Report: 2013 March (Form 10-Q)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2013

Commission File No. 001-12561

BELDEN INC.

(Exact name of registrant as specified in its charter)

7733 Forsyth Boulevard, Suite 800

St. Louis, Missouri 63105

(Address of principal executive offices)

(314) 854-8000

Registrant’s telephone number, including area code

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Act during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  þ    No  ¨.

Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate website, if any, every interactive data file required to be submitted and posted pursuant to Rule 405 of Regulation S-T (section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  þ    No  ¨.

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  þ.

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

As of May 3, 2013, the Registrant had 44,030,333 outstanding shares of common stock.

BELDEN INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements

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BELDEN INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME

(Unaudited)

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements

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BELDEN INC.

CONDENSED CONSOLIDATED CASH FLOW STATEMENTS

(Unaudited)

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements

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BELDEN INC.

CONDENSED CONSOLIDATED STOCKHOLDERS’ EQUITY STATEMENT

THREE MONTHS ENDED MARCH 31, 2013

(Unaudited)

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements

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BELDEN INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1: Summary of Significant Accounting Policies

Basis of Presentation

The accompanying Condensed Consolidated Financial Statements include Belden Inc. and all of its subsidiaries (the Company, us, we, or our). We eliminate all significant affiliate accounts and transactions in consolidation.

The accompanying Condensed Consolidated Financial Statements presented as of any date other than December 31, 2012:

These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Supplementary Data contained in our 2012 Annual Report on Form 10-K.

Business Description

Belden Inc. (the Company, Belden, we, us, or our) designs, manufactures, and markets signal transmission solutions for the broadcast, enterprise, and industrial markets. Our products are designed and manufactured to strict quality standards resulting in an industry leading reputation for worldwide reliability.

Reporting Periods

Our fiscal year and fiscal fourth quarter both end on December 31. Our fiscal first quarter ends on the Sunday falling closest to 91 days after December 31, which was March 31, 2013, the 90th day of our fiscal year 2013. Our fiscal second and third quarters each have 91 days. The three months ended April 1, 2012 included 92 days.

Reclassifications

We have made certain reclassifications to the 2012 Condensed Consolidated Financial Statements with no impact to reported net income in order to conform to the 2013 presentation, primarily related to discontinued operations of a disposed business.

Fair Value Measurement

Accounting guidance for fair value measurements specifies a hierarchy of valuation techniques based upon whether the inputs to those valuation techniques reflect assumptions other market participants would use based upon market data obtained from independent sources or reflect our own assumptions of market participant valuation. The hierarchy is broken down into three levels based on the reliability of the inputs as follows:

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As of and during the three months ended March 31, 2013 and April 1, 2012, we utilized Level 1 inputs to determine the fair value of cash equivalents. We did not have any transfers between Level 1 and Level 2 fair value measurements during the year.

Cash and Cash Equivalents

We classify cash on hand and deposits in banks, including commercial paper, money market accounts, and other investments with an original maturity of three months or less, that we hold from time to time, as cash and cash equivalents. We periodically have cash equivalents consisting of short-term money market funds and other investments. The primary objective of our investment activities is to preserve our capital for the purpose of funding operations. We do not enter into investments for trading or speculative purposes. The fair value of these cash equivalents as of March 31, 2013 was $195.4 million and is based on quoted market prices in active markets (i.e., Level 1 valuation).

Contingent Liabilities

We have established liabilities for environmental and legal contingencies that are probable of occurrence and reasonably estimable, the amounts of which are currently not material. We accrue environmental remediation costs based on estimates of known environmental remediation exposures developed in consultation with our environmental consultants and legal counsel. We are, from time to time, subject to routine litigation incidental to our business. These lawsuits primarily involve claims for damages arising out of the use of our products, allegations of patent or trademark infringement, and litigation and administrative proceedings involving employment matters and commercial disputes. Based on facts currently available, we believe the disposition of the claims that are pending or asserted will not have a materially adverse effect on our financial position, results of operations or cash flow.

As of March 31, 2013, we were party to standby letters of credit, bank guaranties, and surety bonds totaling $7.0 million, $4.5 million, and $1.7 million, respectively.

Revenue Recognition

We recognize revenue when all of the following circumstances are satisfied: (1) persuasive evidence of an arrangement exists, (2) price is fixed or determinable, (3) collectability is reasonably assured, and (4) delivery has occurred. Delivery occurs in the period in which the customer takes title and assumes the risks and rewards of ownership of the products specified in the customer’s purchase order or sales agreement. At times, we enter into arrangements that involve the delivery of multiple products. For these arrangements, revenue is allocated to each deliverable based on that element’s relative selling price and recognized based on the period of delivery for each element.

We record revenue net of estimated rebates, price allowances, invoicing adjustments, and product returns. We record revisions to these estimates in the period in which the facts that give rise to each revision become known.

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Discontinued Operations

In 2012, we sold our Thermax and Raydex cable business, and the results of operations of Thermax and Raydex in 2012 are reported in discontinued operations. Operating results from discontinued operations for the three months ended April 1, 2012 include $24.7 million of revenues and $6.8 million of income before taxes from Thermax and Raydex.

In 2010, we completed the sale of Trapeze Networks, Inc. (Trapeze) for $152.1 million. At the time the transaction closed, we received $136.9 million in cash, and the remaining $15.2 million was placed in escrow as partial security for our indemnity obligations under the sale agreement. As of March 31, 2013, we have collected a partial settlement of $4.2 million from the escrow, and we remain in negotiations with the buyer of Trapeze regarding the status of the escrow and certain claims raised by the buyer. Based on the current status of the negotiations, the amount of the escrow receivable on our Condensed Consolidated Balance Sheet is $3.8 million, which is our best estimate of the remaining amount to be collected.

Subsequent Events

We have evaluated subsequent events after the balance sheet date through the financial statement issuance date for appropriate accounting and disclosure.

Current-Year Adoption of Accounting Pronouncements

On January 1, 2013, we adopted new accounting guidance issued by the FASB with regard to the presentation and disclosure of changes in accumulated other comprehensive income (loss). The adoption of this guidance did not have a material impact on our financial statements.

Note 2: Acquisitions

Softel Limited

We acquired Softel Limited (Softel) for $9.1 million, net of cash acquired, on January 25, 2013. Softel is a key technology supplier to the media sector with a portfolio of technologies well aligned with industry trends and growing demand. Softel is located in the United Kingdom. The results of Softel have been included in our Consolidated Financial Statements from January 25, 2013, and are reported within the Broadcast segment. The Softel acquisition was not material to our financial position or results of operations reported as of and for the three months ended March 31, 2013.

PPC Broadband, Inc.

We acquired 100% of the outstanding shares of PPC Broadband, Inc. (PPC) in exchange for cash of $522.4 million on December 10, 2012. PPC is a leading manufacturer and developer of advanced connectivity technologies for the broadband market and expands our solution offerings in the broadband end-market. PPC is headquartered in Syracuse, New York. PPC’s strong brands and technology enhance our portfolio of broadband products. The results of PPC have been included in our Consolidated Financial Statements from December 10, 2012, and are reported within the Broadcast segment. The following table summarizes the estimated fair value of the assets acquired and the liabilities assumed as of December 10, 2012 (in thousands).

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The above purchase price allocation has been determined provisionally, and is subject to revision as additional information about the fair value of individual assets and liabilities becomes available. We are in the process of finalizing third party valuations of certain tangible and intangible assets and ensuring our accounting policies are applied at PPC. The provisional measurement of inventories, property, plant, and equipment, intangible assets, goodwill, deferred income taxes, and other assets and liabilities are subject to change. Any change in the acquisition date fair value of the acquired net assets will change the amount of the purchase price allocable to goodwill.

A single estimate of fair value results from a complex series of judgments about future events and uncertainties and relies heavily on estimates and assumptions. The judgments we have used in estimating the fair values assigned to each class of acquired assets and assumed liabilities could materially affect the results of our operations.

The fair value of acquired receivables is $27.1 million, with a gross contractual amount of $27.7 million. We do not expect to collect $0.6 million of the acquired receivables.

For purposes of the above allocation, we have estimated a fair value adjustment for inventories based on the estimated selling price of the work-in-process and finished goods acquired at the closing date less the sum of the costs to complete the work-in-process, the costs of disposal, and a reasonable profit allowance for our post acquisition selling efforts. We based our estimate of the fair value for the acquired property, plant, and equipment on a preliminary valuation study performed by a third party valuation firm. We used various valuation methods including discounted cash flows to estimate the fair value of the identifiable intangible assets.

Goodwill and other intangible assets reflected above were determined to meet the criterion for recognition apart from tangible assets acquired and liabilities assumed. The goodwill is primarily attributable to expected synergies and the assembled workforce. Our tax basis in the acquired goodwill is $277.0 million. The goodwill balance we recorded is deductible for tax purposes up to the amount of the tax basis. Intangible assets related to the PPC acquisition consisted of the following:

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Trademarks have been determined by us to have indefinite lives and are not being amortized, based on our expectation that the trademarked products will generate cash flows for us for an indefinite period. We expect to maintain use of trademarks on existing products and introduce new products in the future that will also display the trademarks, thus extending their lives indefinitely. In-process research and development assets are considered indefinite-lived intangible assets until the completion or abandonment of the associated research and development efforts. Upon completion of the development process, we will make a determination of the useful life of the asset and begin amortizing the assets over that period. If the project is abandoned, we will write-off the asset at such time.

The amortizable intangible assets reflected in the table above were determined by us to have finite lives. The useful life for the developed technologies intangible asset was based on the estimated time that the technology provides us with a competitive advantage and thus approximates the period of consumption of the intangible asset. The useful life for the customer relationship intangible asset was based on our forecasts of customer turnover. The useful life of the backlog intangible asset was based on our estimate of when the ordered items would ship.

Miranda Technologies Inc.

We acquired Miranda Technologies Inc. (Miranda) for cash of $374.7 million in July 2012. The results of Miranda are reported within the Broadcast segment. There have been no changes to the purchase price allocation as compared to December 31, 2012. However, we remain in the process of finalizing our analysis of Miranda’s income tax assets and liabilities and ensuring our accounting policies are applied at Miranda. Therefore, the provisional measurement of goodwill, deferred income taxes, deferred revenue, and other assets and liabilities are subject to change.

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Pro forma – PPC and Miranda

The following table illustrates the unaudited pro forma effect on operating results as if the Miranda and PPC acquisitions had been completed as of January 1, 2011.

For purposes of the unaudited pro forma disclosures, the three months ended April 1, 2012 includes interest expense from the term loan borrowed to finance the acquisition of Miranda and from the borrowings under our senior secured credit facility to finance the acquisition of PPC.

The above unaudited pro forma financial information is presented for informational purposes only and does not purport to represent what our results of operations would have been had we completed the acquisitions on the date assumed, nor is it necessarily indicative of the results that may be expected in future periods. Pro forma adjustments exclude cost savings from any synergies resulting from the acquisitions.

Note 3: Operating Segments

In 2013, we re-organized the company around four global business platforms: Broadcast, Enterprise Connectivity, Industrial Connectivity, and Industrial IT. Previously, we were organized around geographic regions. The re-organization was executed as a result of our transformation into a global provider of comprehensive signal transmission solutions. We believe the new solution oriented organization will allow us to better capitalize on market opportunities and meet customer demands. We have determined that each of the global business platforms represents a reportable segment. We have revised the prior period segment information to conform to the change in the composition of our reportable segments. The All Other segment represents the financial results of our cable operations that primarily conducted business in the consumer electronics end market, which we sold in December 2012.

We allocate corporate expenses to the segments for purposes of measuring segment operating income. Corporate expenses are allocated on the basis of each segment’s relative operating income prior to the allocation, adjusted for certain items including asset impairment, severance and other restructuring costs, purchase accounting effects related to acquisitions, and amortization of intangible assets.

Total segment assets do not include cash, goodwill and intangible assets, deferred tax assets, or corporate assets.

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The following table is a reconciliation of the total of the reportable segments’ operating income to consolidated income from continuing operations before taxes.

Note 4: Income per Share

The following table presents the basis for the income per share computations:

For the three months ended March 31, 2013 and April 1, 2012, diluted weighted average shares outstanding do not include outstanding equity awards of 0.3 million and 0.7 million, respectively, because to do so would have been anti-dilutive.

For purposes of calculating basic earnings per share, unvested restricted stock units are not included in the calculation of basic weighted average shares outstanding until all necessary conditions have been satisfied and issuance of the shares underlying the restricted stock units is no longer contingent. Necessary conditions are not satisfied until the vesting date, at which time holders of our restricted stock units receive shares of our common stock.

For purposes of calculating diluted earnings per share, unvested restricted stock units are included to the extent that they are dilutive. In determining whether unvested restricted stock units are dilutive, each issuance of restricted stock units is considered separately.

Once a restricted stock unit has vested, it is included in the calculation of both basic and diluted weighted average shares outstanding.

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Note 5: Inventories

The major classes of inventories were as follows:

Note 6: Long-Lived Assets

Disposals

During the three months ended March 31, 2013, we sold certain real estate of the Broadcast segment for $1.0 million, and recognized a $0.3 million loss on the sale.

Depreciation and Amortization Expense

We recognized depreciation expense in income from continuing operations of $9.6 million and $8.7 million in the three months ended March 31, 2013 and April 1, 2012, respectively.

We recognized amortization expense in income from continuing operations related to our intangible assets of $13.0 million and $3.1 million in the three months ended March 31, 2013 and April 1, 2012, respectively.

Note 7: Long-Term Debt and Other Borrowing Arrangements

The carrying values of our long-term debt and other borrowing arrangements were as follows:

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Senior Secured Facility

In 2012, we amended our senior secured credit facility (Senior Secured Facility) and borrowed a CAD$250.0 million term loan (the Term Loan). The Term Loan matures in 2017 and requires quarterly amortization payments. Interest on the Term Loan is variable, based upon the three-month Canadian money-market rate plus an applicable spread (4.25% at March 31, 2013).

The borrowing capacity under the revolving credit component of our Senior Secured Facility is $400.0 million, and it matures on April 25, 2016. Under the revolving credit component, we are permitted to borrow and re-pay funds in various currencies. Interest on outstanding borrowings is variable, based on either the three month LIBOR rate or the prime rate. As March 31, 2013, there were no borrowings outstanding under the revolving credit component, and we had $386.8 million in available borrowing capacity, as our borrowing capacity is also reduced by outstanding credit instruments of $13.2 million. We pay a commitment fee on our available borrowing capacity, which ranges from 0.25% to 0.50%, depending on our leverage ratio.

Borrowings under our Senior Secured Facility are secured by certain of our assets in the United States as well as the capital stock of certain of our subsidiaries. The Senior Secured Facility contains a leverage ratio covenant and a fixed charge coverage ratio covenant. As of March 31, 2013, we were in compliance with all of the covenants of the Senior Secured Facility.

Senior Subordinated Notes

In March 2013, we issued €300.0 million ($388.2 million) aggregate principal amount of 5.5% senior subordinated notes due 2023. The notes are guaranteed on a senior subordinated basis by certain of our subsidiaries. The notes rank equal in right of payment with our senior subordinated notes due 2022 and 2019 and with any future subordinated debt, and they are subordinated to all of our senior debt and the senior debt of our subsidiary guarantors, including our Senior Secured Facility. Interest is payable semiannually on April 15 and October 15 of each year, beginning October 15, 2013. We paid $6.8 million of fees associated with the issuance of the notes, which are being amortized over the life of the notes using the effective interest method. We used the net proceeds from the transaction to repay amounts outstanding under the revolving credit component of our Senior Secured Facility, as discussed above, and for general corporate purposes.

As of March 31, 2013, we have $700.0 million aggregate principal amount of 5.5% senior subordinated notes due 2022 outstanding. The notes are guaranteed on a senior subordinated basis by certain of our subsidiaries. The notes rank equal in right of payment with our senior subordinated notes due 2019 and 2023 and with any future subordinated debt, and they are subordinated to all of our senior debt and the senior debt of our subsidiary guarantors, including our Senior Secured Facility. Interest is payable semiannually on March 1 and September 1 of each year.

As of March 31, 2013, $5.2 million aggregate principal amount of our senior subordinated notes due 2019 remain outstanding. The senior subordinated notes due 2019 have a coupon interest rate of 9.25%, and an effective interest rate of 9.75%. The interest on the 2019 notes is payable semiannually on June 15 and December 15. The notes are guaranteed on a senior subordinated basis by certain of our subsidiaries. The notes rank equal in right of payment with our senior subordinated notes due 2022 and 2023 and with any future subordinated debt, and they are subordinated to all of our senior debt and the senior debt of our subsidiary guarantors, including our Senior Secured Facility.

Fair Value of Long-Term Debt

The fair value of our senior subordinated notes at March 31, 2013 was approximately $1,110 million based on quoted prices of the debt instruments in inactive markets (Level 2 valuation). This amount represents the fair values of our senior subordinated notes with a carrying value of $1,091 million as of March 31, 2013. We believe the fair value of our variable rate Term Loan approximates book value.

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Note 8: Income Taxes

Income tax expense was $6.2 million for the three months ended March 31, 2013. The most significant factor in the difference between the effective tax rate of 21.8% and the amount determined by applying the applicable statutory United States tax rate of 35% for the three months ended March 31, 2013 is the tax rate differential associated with our foreign earnings.

Income tax expense for the three months ended March 31, 2013 included a $5.2 million tax benefit due to the impact of tax law changes in the U.S. In addition, for the three months ended March 31, 2013, we recorded $3.7 million of income tax expense for an uncertain tax position liability related to a foreign tax audit.

For the three months ended March 31, 2013, we made planned payments of two significant tax items. First, we paid $38.5 million of our estimated 2012 tax liability related to the sale of the Thermax and Raydex cable business in 2012. We recognized a $211.6 million pre-tax gain on the sale of this business in 2012. Second, we paid $30.0 million to settle a tax sharing agreement dispute with Cooper Industries. We reached the settlement and recognized a $21.0 million tax benefit in 2012. There were no significant tax payments made for the three months ended April 1, 2012.

Note 9: Pension and Other Postretirement Obligations

The following table provides the components of net periodic benefit costs for our pension and other postretirement benefit plans:

Note 10: Comprehensive Income and Accumulated Other Comprehensive Income (Loss)

The following table summarizes total comprehensive income:

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The accumulated balances related to each component of other comprehensive income (loss), net of tax, are as follows:

The following table summarizes the effects of reclassifications from accumulated other comprehensive income for the three months ended March 31, 2013:

Note 11: Share Repurchases

In 2011, our Board of Directors authorized a share repurchase program, which allows us to purchase up to $150.0 million of our common stock through open market repurchases, negotiated transactions, or other means, in accordance with applicable securities laws and other restrictions. The program does not have an expiration date and may be suspended at any time at the discretion of the Company. In 2012, our Board of Directors authorized an extension of the share repurchase program, which allows us to purchase up to an additional $200.0 million of our common stock through open market repurchases, negotiated transactions, or other means, in accordance with applicable securities laws and other restrictions. This program is funded by cash on hand and cash flows from operating activities.

For the three months ended March 31, 2013, we repurchased 0.6 million shares of our common stock under the program through prepaid variable share repurchase agreements for an aggregate cost of $31.3 million and an average price per share of $50.98. From inception of the program to March 31, 2013, we have repurchased 4.3 million shares of our common stock under the programs for an aggregate cost of $156.3 million and an average price of $36.17.

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Overview

Belden designs, manufactures, and markets signal transmission solutions for the broadcast, enterprise, and industrial markets. Our products are designed and manufactured to strict quality standards resulting in an industry leading reputation for worldwide reliability.

We consider revenue growth, operating margin, cash flows, return on invested capital, and working capital management metrics to be our key operating performance indicators.

Trends and Events

The following trends and events during 2013 have had varying effects on our financial condition, results of operations, and cash flows.

Change in Segments

In 2013, we re-organized the company around four global business platforms: Broadcast, Enterprise Connectivity, Industrial Connectivity, and Industrial IT. The re-organization was executed as a result of our transformation into a global provider of comprehensive signal transmission solutions. We have determined that each of the global business platforms represents a reportable segment. We have revised the prior period segment information to conform to the change in the composition of our reportable segments.

Commodity prices

Our operating results can be affected by changes in prices of commodities, primarily copper and compounds, which are components in some of the products we sell. Generally, as the costs of inventory purchases increase due to higher commodity prices, we raise selling prices to customers to cover the increase in costs, resulting in higher sales revenue but a lower gross profit percentage. Conversely, a decrease in commodity prices would result in lower sales revenue but a higher gross profit percentage. Selling prices of our products are affected by many factors, including end market demand, capacity utilization, overall economic conditions, and commodity prices. Importantly, however, there is no exact measure of the effect of changing commodity prices, as there are thousands of transactions in any given quarter, each of which has various factors involved in the individual pricing decisions. Therefore, all references to the effect of copper prices or other commodity prices are estimates.

Channel Inventory

Our operating results also can be affected by the levels of Belden products held as inventory by our channel partners and customers. Our channel partners and customers purchase and hold our products in their inventory in order to meet the service and on-time delivery requirements of their customers. Generally, as our channel partners and customers change the level of Belden products owned and held in their inventory, it impacts our revenues. Comparisons of our results between periods can be impacted by changes in the levels of channel inventory. All references to the effect of channel inventory changes are estimates.

Acquisitions and Dispositions

We completed the acquisitions of Miranda Technologies Inc. (Miranda) in July 2012, PPC Broadband, Inc. (PPC) in December 2012, and Softel Limited (Softel) in January 2013. The results of Miranda, PPC, and Softel have been included in our Consolidated Financial Statements from their respective acquisition dates and are reported within the Broadcast segment. We sold our cable operations that primarily conducted business in the consumer electronics end market on December 31, 2012.

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Restructuring Activities

As a result of recently completed acquisitions, we plan to consolidate certain operating facilities during 2013. We expect to incur severance and other restructuring costs in 2013 of approximately $8 million as a result of the consolidation of facilities in New York. We continue to review our business strategies and evaluate potential new restructuring actions. This could result in additional restructuring costs in future periods.

Off-Balance Sheet Arrangements

We have no off-balance sheet arrangements that have or are reasonably likely to have a current or future effect on our financial condition, results of operations, or cash flows that are or would be considered material to investors.

Critical Accounting Policies

During the three months ended March 31, 2013:

Results of Operations

Consolidated Continuing Operations

Revenues increased in the three months ended March 31, 2013 from the comparable period of 2012 primarily due to acquisitions, which contributed $96.8 million of the increase.

The increase in revenues due to acquisitions was partially offset by the following decreases:

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Gross profit increased in the three months ended March 31, 2013 from the comparable period of 2012 due to the increases in revenues as discussed above. Gross profit for the three months ended March 31, 2013 was negatively impacted by $6.6 million of cost of sales arising from the adjustment of inventory to fair value related to our acquisition of PPC in December 2012. Excluding the impact of the adjustment of inventory to fair value, our gross profit percentage increased from 30.2% for the three months ended April 1, 2012 to 34.3% for the three months ended March 31, 2013. This was due to improved product and end-market mix, improved productivity due to our Lean Enterprise initiatives, and the impact of our acquisitions.

Selling, general and administrative expenses increased in the three months ended March 31, 2013 from the comparable period of 2012 primarily due to the impact of our acquisitions completed in 2012. The year-over-year percentage increase in selling, general and administrative expenses were less than the percentage increases in revenues due to the benefits of the successful execution of our Lean Enterprise strategies and our previously completed restructuring actions.

The increase in research and development costs in the three months ended March 31, 2013 from the comparable period of 2012 was primarily due to increased investments in new product development and our recent technology intensive acquisitions.

Amortization of intangibles increased by $9.9 million in the three months ended March 31, 2013 from the comparable period of 2012 due to the impact of our acquisitions.

Operating income increased in the three months ended March 31, 2013 from the comparable period of 2012 due to the increases in revenues and gross profit as discussed above. Operating income for the three months ended March 31, 2013 included $6.6 million of cost of sales related to the adjustment of acquired inventory to fair value and $13.0 million of amortization of intangible assets. Operating income for the three months ended April 1, 2012 included $3.1 million of amortization of intangible assets. Excluding the adjustment of acquired inventory to fair value and amortization of intangible assets, our operating income percentage increased from 9.1% for the three months ended April 1, 2012 to 12.6% for the three months ended March 31, 2013. This was due to an improved business portfolio, improved end-market mix, improved productivity as a result of the successful execution of our Lean Enterprise strategies, and our previously completed restructuring activities.

Interest expense increased in the three months ended March 31, 2013 from the comparable period of 2012 due to our increase in total debt incurred to finance our recent acquisitions. While our total debt has increased, our effective interest rate on our outstanding borrowings decreased from 7.8% as of April 1, 2012 to 5.3% as of March 31, 2013 due to our refinancing activities in 2012. Interest expense for the three months ended March 31, 2013 also includes $1.5 million of interest expense associated with an uncertain tax position for a foreign tax audit.

Income from continuing operations before taxes increased in the three months March 31, 2013 from the comparable period of 2012 due to the increases in operating income discussed above, partially offset by the increase in interest expense.

Our effective tax rate for the three months ended March 31, 2013 was 21.8% compared to 22.8% for the three months ended April 1, 2012. Income tax expense for the three months ended March 31, 2013 included a $5.2 million tax benefit due to the impact of tax law changes in the U.S. In addition, for the three months ended March 31, 2013, we recorded $3.7 million of income tax expense for an uncertain tax position liability related to a foreign tax audit. For the three months ended April 1, 2012, we recorded a $1.0 million tax benefit due to the favorable settlement of a foreign tax audit.

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Broadcast Solutions