Sunfire TGA 7401 repair/help

badchad
badchad Posts: 348
edited March 2016 in Troubleshooting
I scored a Sunfire TGA 7401 off the bay last week.

Good buy, except the center channel produces little but static/distortion. I've done the basic swapping back and forth of components, so I'm certain its the amp. With that said, I have two questions:

1. Does anyone know of any good amp repair centers around Washington DC?
2. Any other troubleshooting tips? There doesn't seem to be many options here...
Polk Fronts: RTi A7's
Polk Center: CSi A6
Polk Surrounds: FXi A6's
Polk Rear Surround: RTi4
Sub: HSU VTF-3 (MK1)
AVR: Yamaha RX-A2010
B&K Reference 200.7
TV: Sharp LC-70LE847U
Oppo BDP-103
· Share on FacebookShare on Twitter

Comments

  • helipilotdoug
    helipilotdoug Posts: 1,229
    You might try Flannery's Vintage Audio Repair. I know he works on a lot of Sunfire stuff, but not sure about the TGA 7401. He's not local to you though.
    Sunfire Theater Grand IV
    Sunfire Cinema Grand Signature
    SRS 2.1TL
    SDA 2BTL's
    CSiA6
    FXiA4
    FXiA6
    SDA 2A's
    Monitor 10A's
    http://www.douglasconnection.com
    · Share on FacebookShare on Twitter
  • nooshinjohn
    nooshinjohn Posts: 25,447
    Bill is your best option on that one. He was Sunfire's guy back in the day.
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
    · Share on FacebookShare on Twitter
  • txcoastal1
    txcoastal1 Posts: 13,306
    Are you using all 7 channels for HT?
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC

    erat interfectorem cesar et **** dictatorem dicere a
    · Share on FacebookShare on Twitter
  • badchad
    badchad Posts: 348
    Yes. Using all 7 channels.

    I had hoped to avoid shipping but it looks inevitable. I'll try Flannerys I guess.
    Polk Fronts: RTi A7's
    Polk Center: CSi A6
    Polk Surrounds: FXi A6's
    Polk Rear Surround: RTi4
    Sub: HSU VTF-3 (MK1)
    AVR: Yamaha RX-A2010
    B&K Reference 200.7
    TV: Sharp LC-70LE847U
    Oppo BDP-103
    · Share on FacebookShare on Twitter