KNOWLES ELECTRONICS HOLDINGS INC

Q: Jun 30 2005

Q: Mar 31 2005

Q: Mar 31 2005

FY: Dec 31 2004

Q: Sep 30 2004

Q: Jun 30 2004

Q: Mar 31 2004

FY: Dec 31 2003

Q: Sep 30 2003

Q: Jun 30 2003

Q: Mar 31 2003

FY: Dec 31 2002

Q: Sep 30 2002

Q: Jun 30 2002

Q: Mar 31 2002

FY: Dec 31 2001

Q: Mar 31 2002

FY: Dec 31 2001

Q: Sep 30 2001

Q: Jun 30 2001

1.01

1.01,9.01

1.01,2.03,9.01

5

2,7

Current report pursuant to Section 13 or 15(d)

5

No description available

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Correspondence with the SEC

Letter from the SEC