EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated January 26, 2004 relating to the financial statements and financial statement schedule, which appears in CTS Corporation’s Annual Report on Form 10-K for the year ended December 31, 2003. We also consent to the reference to us under the heading “Experts” in the Registration Statement.

/s/ PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
Indianapolis, Indiana

August 17, 2004