UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                 SCHEDULE 13G/A

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 3)*

                                 ROCKFORD CORP.
        -----------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
        -----------------------------------------------------------------
                         (Title of Class of Securities)

                                    77316P101
                              --------------------
                                 (CUSIP Number)

                                December 31, 2003
        ----------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         / X /    Rule 13d-1(b)
         /   /    Rule 13d-1(c)
         /   /    Rule 13d-1(d)

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the  liabilities of the section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).






                                 SCHEDULE 13G/A
                              CUSIP NO. 77316P101

1.       Names of Reporting Persons.
         I.R.S. Identification Nos. of above persons (entities only).

         Quaker Capital Management Corporation
         -----------------------------------------------------------------------

2.      Check the Appropriate Box if a Member of a Group

        (a)
                  ------
        (b)         X
                  ------

3.       SEC Use Only
                                   ---------------------------------------------

4.      Citizenship or Place of Organization                        Pennsylvania
                                                                 ---------------

Number of         5.       Sole Voting Power                             705,000
  Shares                                                         ---------------
Beneficially      6.       Shared Voting Power                           720,000
  Owned by                                                       ---------------
Each Reporting    7.       Sole Dispositive Power                        705,000
    Person                                                       ---------------
     With:        8.       Shared Dispositive Power                      720,000
                                                                 ---------------

9.      Aggregate Amount Beneficially Owned by Each Reporting Person

        1,425,000
        ----------------

10.      Check if the Aggregate Amount in Row (9) Excludes Certain
         Shares
               --------

         The  Reporting  Person  disclaims  beneficial  ownership  of
         1,423,700 shares owned by its clients.

11. Percent of Class Represented by Amount in Row (9)

                                                                          16.04%
                                                                  --------------

12. Type of Reporting Person                                            IA
                                                                  --------------



                               Page 2 of 7 Pages




                                 SCHEDULE 13G/A
                              CUSIP NO. 77316P101



Item 1.

         (a)      Name of Issuer

                  ROCKFORD CORP.
                  --------------------------------------------------------------

         (b)      Address of Issuer's Principal Executive Offices

                  546 South Rockford Drive, Tempe, Arizona 85281
                  --------------------------------------------------------------
Item 2.

         (a)      Name of Persons Filing

                  Quaker Capital Management Corporation
                  --------------------------------------------------------------

         (b)      Address of Principal Business Office or, if none, Residence

                  401 Wood Street, Suite 1300, Pittsburgh, PA  15222
                  --------------------------------------------------------------

         (c)      Citizenship

                  Pennsylvania, USA
                  --------------------------------------------------------------

         (d)      Title of Class of Securities

                  Common Stock
                  --------------------------------------------------------------

         (e)      CUSIP Number

                  77316P101
                  --------------------------------------------------------------


                               Page 3 of 7 Pages



                                 SCHEDULE 13G/A
                              CUSIP NO. 77316P101




Item 3.      If this  statement  is   filed  pursuant  to  ss.ss.240.13d-1(b) or
             240.13d-2(b) or (c), check whether the person filing is a:

     (a)   / / Broker of dealer registered under section 15 of the Act;

     (b)  / / Bank as defined in section 3(a)(6) of the Act;

     (c)  / / Insurance company as defined in section 3(a)(19) of the Act;

     (d)  / / Investment company registered under section 8  of   the Investment
              Company Act of 1940;

     (e)  /X/ An  investment adviser   in accordance   with   ss.240.13d-1(b)(l)
              (ii)(E);

     (f)  / / An employee   benefit  plan or endowment  fund in accordance  with
              ss.240.13d-1(b)(1)(ii)(F);

     (g)  / / A parent holding company or control person in
                           accordance with ss.240.13d-1(b)(1)(ii)(G);

     (h)  / / A savings association as   defined in  Section 3(b) of the Federal
              Deposit Insurance Act;

     (i)  / / A church   plan   that   is excluded   from the  definition  of an
              investment  company  under  section  3(c)(14) of  the   Investment
              Company Act of 1940;

     (j)  / / Group, in accordance with ss.240.13d-1((b)(l)(ii)(J)

Item 4.      Ownership
             ---------

         (a)   The Reporting Person, in its capacity as investment adviser,  may
               be deemed to be the beneficial  owner of 1,423,700  shares of the
               Common Stock of the Issuer which are owned by various  investment
               advisory  clients of the Reporting  Person in accounts over which
               the Reporting Person has discretionary  authority.  The filing of
               this  report  shall not be  construed  as an  admission  that the
               Reporting  Person is, for  purposes of Section  13(d) or 13(g) of
               the Act, the beneficial owner of these securities.  Additionally,
               the  Reporting  Person  and/or its  principals  and employees own
               1,300 shares of the Common Stock of the Issuer.


                                Page 4 of 7 Pages


                                 SCHEDULE 13G/A
                              CUSIP NO. 77316P101


         (b)   The shares covered by this report  represent 16.04% of the Common
               Stock of the Issuer.

         (c)   The Reporting Person has shared voting and dispositive power over
               720,000 shares and sole voting and dispositive power over 703,700
               shares  owned by its clients  and held in accounts  over which it
               has  discretionary  authority.  The  Reporting  Person and/or its
               principals and employees have sole voting and  dispositive  power
               over the 1,300 shares owned by the  Reporting  Person  and/or its
               principals and employees.

Item 5.      Ownership of Five Percent or Less of a Class

             If this  statement  is being  filed to report  the fact that as  of
the date hereof,  the reporting  person has ceased to be the beneficial owner of
more  than  five  percent  of the  class of  securities,  check  the  following:

                                                                ----------------

Item 6.      Ownership of More than Five Percent on Behalf of Another Person

             1,423,700 of the shares with respect to  which this report is filed
are owned by a variety of investment  advisory clients of the Reporting  Person,
which  clients are entitled to receive  dividends  on and the proceeds  from the
sale of such shares. No client is known to own more than 5% of the class.

Item 7.      Identification and Classification of the  Subsidiary Which Acquired
             the Security Being Reported on by the Parent Holding Company

             Not applicable.

Item 8.      Identification and Classification of Members of the Group

             Not applicable.

Item 9.      Notice of Dissolution of Group

             Not applicable.

Item 10.     Certification

             By signing below I certify that, to the best  of my  knowledge  and
belief,  the  securities  referred  to above were  acquired  and are held in the
ordinary  course  of  business  and were not  acquired  and are not held for the
purpose of or with the


                               Page 5 of 7 Pages




                                 SCHEDULE 13G/A
                              CUSIP NO. 77316P101



effect of changing or  influencing  the control of the issuer of the  securities
and were not acquired and are not held in connection with or as a participant in
any transaction having that purpose or effect.





                               Page 6 of 7 Pages




                                 SCHEDULE 13G/A
                              CUSIP NO. 77316P101



                                    SIGNATURE

          After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this statement is true,  complete and
correct.


                                         QUAKER CAPITAL MANAGEMENT CORPORATION


                                                   February 13, 2004
                                                   -----------------------------
                                                              Date


                                                   /s/  Mark G. Schoeppner
                                                   -----------------------------
                                                           Signature


                                                   Mark G. Schoeppner, President
                                                   -----------------------------
                                                            Name/Title





                               Page 7 of 7 Pages