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  <TITLE>UNITED STATES</TITLE>
  <META NAME="author" CONTENT="CKLOTZ">
  <META NAME="date" CONTENT="02/26/2008">
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  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>UNITED STATES</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>SECURITIES AND EXCHANGE COMMISSION</B></P>
  <P style="margin-top:0pt; margin-bottom:6.1pt; line-height:14pt; font-family:Garamond" align=center><B>Washington, D.C. 20549</B></P>
  <P style="margin-top:0pt; margin-bottom:6.1pt; line-height:14pt; font-family:Garamond" align=center><B>_____________________</B></P>
  <P style="margin:0pt; line-height:18pt; font-family:Garamond; font-size:18pt" align=center><B>FORM 8-K</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>CURRENT REPORT</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>Pursuant to Section 13 or 15(d) of </B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>the Securities Exchange Act of 1934</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond" align=center>Date of Report (Date of earliest event reported): February 21, 2008</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>__________________</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <TABLE style="font-size:10pt" cellspacing=0><TR><TD valign=top width=720><P style="margin-top:16pt; margin-bottom:0pt; line-height:16pt; font-family:Garamond; font-size:16pt" align=center><B>CIRCUIT RESEARCH LABS, INC.</B></P>
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  <TR><TD valign=top width=720>&nbsp;</TD></TR>
  <TR><TD valign=top width=720><P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>(Exact name of registrant as specified in its charter)</P>
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  <TABLE style="font-size:10pt" cellspacing=0><TR><TD valign=top width=240><P style="margin-top:6pt; margin-bottom:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>Arizona</B></P>
  </TD><TD valign=top width=240><P style="margin-top:6pt; margin-bottom:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>0-11353</B></P>
  </TD><TD valign=top width=240><P style="margin-top:6pt; margin-bottom:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>86-0344671</B></P>
  </TD></TR>
  <TR><TD valign=top width=720 colspan=3>&nbsp;</TD></TR>
  <TR><TD valign=top width=240><P style="margin:0pt; padding-left:10.1pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>(State or other jurisdiction</P>
  </TD><TD valign=top width=240><P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>(Commission</P>
  </TD><TD valign=top width=240><P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>(IRS Employer</P>
  </TD></TR>
  <TR><TD valign=top width=240><P style="margin:0pt; padding-left:20.2pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>of incorporation)</P>
  </TD><TD valign=top width=240><P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>File Number)</P>
  </TD><TD valign=top width=240><P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>Identification No.)</P>
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  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <TABLE style="font-size:10pt" cellspacing=0><TR><TD valign=top width=480>&nbsp;</TD><TD valign=top width=240>&nbsp;</TD></TR>
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  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>7970 South Kyrene Road</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>Tempe, Arizona, 85284</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><BR></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>&nbsp;(Address of Principal Executive Offices)</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>(Zip Code)</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><B><BR></B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center>Registrant&#146;s telephone number, including area code: <B>(480) 403-8300</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin-top:6pt; margin-bottom:6pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):</P>
  <P style="margin-top:0pt; margin-bottom:7.1pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</P>
  <P style="margin-top:0pt; margin-bottom:6.95pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</P>
  <P style="margin-top:0pt; margin-bottom:6.95pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</P>
  <P style="margin-top:0pt; margin-bottom:2.05pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</P>
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  <P style="page-break-before:always; margin-top:0pt; margin-bottom:-16pt; line-height:16pt; font-family:Garamond; font-size:12pt" align=justify><B>Item 1.01 </B></P>
  <P style="margin:0pt; text-indent:72pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><B>Entry into a Material Definitive Agreement</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><B><BR></B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>On February 21, 2008 CRL Systems, Inc. (dba Orban) (the &#147;Company&#148;), a subsidiary of Circuit Research Labs, Inc., entered into an Extension Agreement (the &#147;Agreement&#148;) with Jayson Russell Brentlinger (&#147;Brentlinger&#148;). &nbsp;Brentlinger is the holder of an Amended and Restated Secured Promissory Note (the &#147;Harman Note&#148;) originally issued to Harman Pro North America, Inc., as successor to Harman Acquisition Corp., on October 4, 2004 in the original principal amount of $3,227,530. &nbsp;The Harman Note calls for certain principal payments to be made to the Company at specified times, as well as for the monthly payment of interest.</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>Under the Agreement, effective as of December 31, 2007, the due date for the outstanding principal balance of the Harman Note (approximately $2,300,000 on December 31, 2007) was extended to December 31, 2010 (the &#147;New Maturity Date&#148;). &nbsp;No payments of principal will be due until the New Maturity Date, although interest payments will continue to be paid in accordance with the terms of the Harman Note. &nbsp;The Company may prepay all or any portion of the principal of the Harman Note at any time or from time to time.</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin-top:0pt; margin-bottom:-16pt; line-height:16pt; font-family:Garamond; font-size:12pt" align=justify><B>Item 9.01 &nbsp;</B></P>
  <P style="margin:0pt; text-indent:72pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><B>Financial Statements and Exhibits</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><B>Exhibits:</B></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>(d)</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt">99.1 &nbsp;Extension Agreement dated as of February 21, 2008 between Jayson Russell Brentlinger and CRL Systems, Inc.</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
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  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <P style="margin:0pt; text-indent:36pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>&nbsp;</P>
  <P style="margin-top:0pt; margin-bottom:7.8pt; padding-left:239.3pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><B><BR></B></P>
  <HR style="padding-top:7.2pt; padding-bottom:7.2pt" noshade size=1.333>
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  <P style="margin-top:0pt; margin-bottom:7.8pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=center><B>SIGNATURES</B></P>
  <P style="margin:0pt; text-indent:36pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</P>
  <P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><BR></P>
  <TABLE style="font-size:10pt" cellspacing=0><TR><TD valign=top width=360>&nbsp;</TD><TD valign=top width=360><P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify><B>CIRCUIT RESEARCH LABS, INC.</B></P>
  </TD></TR>
  <TR><TD valign=top width=360>&nbsp;</TD><TD valign=top width=360>&nbsp;</TD></TR>
  <TR><TD valign=top width=360>&nbsp;</TD><TD valign=top width=360>&nbsp;</TD></TR>
  <TR><TD valign=top width=360><P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>Date: February 26, 2008</P>
  </TD><TD valign=top width=360><P style="margin:0pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>By: <U>/s/ Rebecca Nation</U></P>
  </TD></TR>
  <TR><TD valign=top width=360>&nbsp;</TD><TD valign=top width=360><P style="margin-top:0pt; margin-bottom:-16pt; line-height:16pt; font-family:Garamond; font-size:12pt" align=justify>Name:</P>
  <P style="margin:0pt; text-indent:36pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>Rebecca Nation</P>
  <P style="margin:0pt; padding-left:36pt; text-indent:-36pt; line-height:14pt; font-family:Garamond; font-size:12pt" align=justify>Title: &nbsp;CFO</P>
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metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "extensionagreement8k.htm", "description": "EXTENSION AGREEMENT 8K 02.26.08", "secsgml_size_bytes": 13011}]
metadata_filer: {"company-data": {"conformed-name": "CIRCUIT RESEARCH LABS INC", "cik": "0000725897", "assigned-sic": "3663", "irs-number": "860344671", "state-of-incorporation": "AZ", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-11353", "film-number": "08642987"}, "business-address": {"street1": "7970 S KYRENE ROAD", "city": "TEMPE", "state": "AZ", "zip": "85284", "phone": "4804038300"}, "mail-address": {"street1": "7970 S KYRENE ROAD", "city": "TEMPE", "state": "AZ", "zip": "85284"}}
text: UNITED STATES
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  _____________________
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 or 15(d) of
  the Securities Exchange Act of 1934
  Date of Report (Date of earliest event reported): February 21, 2008
  __________________
  CIRCUIT RESEARCH LABS, INC.
  (Exact name of registrant as specified in its charter)
  Arizona
  0-11353
  86-0344671
  (State or other jurisdiction
  (Commission
  (IRS Employer
  of incorporation)
  File Number)
  Identification No.)
  7970 South Kyrene Road
  Tempe, Arizona, 85284
  (Address of Principal Executive Offices)
  (Zip Code)
  Registrant's telephone number, including area code:
  (480) 403-8300
  Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
  [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
  [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
  [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
  [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
  Item 1.01
  Entry into a Material Definitive Agreement
  On February 21, 2008 CRL Systems, Inc. (dba Orban) (the "Company"), a subsidiary of Circuit Research Labs, Inc., entered into an Extension Agreement (the "Agreement") with Jayson Russell Brentlinger ("Brentlinger").  Brentlinger is the holder of an Amended and Restated Secured Promissory Note (the "Harman Note") originally issued to Harman Pro North America, Inc., as successor to Harman Acquisition Corp., on October 4, 2004 in the original principal amount of $3,227,530.  The Harman Note calls for certain principal payments to be made to the Company at specified times, as well as for the monthly payment of interest.
  Under the Agreement, effective as of December 31, 2007, the due date for the outstanding principal balance of the Harman Note (approximately $2,300,000 on December 31, 2007) was extended to December 31, 2010 (the "New Maturity Date").  No payments of principal will be due until the New Maturity Date, although interest payments will continue to be paid in accordance with the terms of the Harman Note.  The Company may prepay all or any portion of the principal of the Harman Note at any time or from time to time.
  Item 9.01
  Financial Statements and Exhibits
  Exhibits:
  (d)
  99.1  Extension Agreement dated as of February 21, 2008 between Jayson Russell Brentlinger and CRL Systems, Inc.
  SIGNATURES
  Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
  CIRCUIT RESEARCH LABS, INC.
  Date: February 26, 2008
  By:
  /s/ Rebecca Nation
  Name:
  Rebecca Nation
  Title:  CFO