Question about Rockford Fosgate Punch 500a2 Car Audio Amplifier

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I HAVE A PUNCH A2 AND WHEN I HOOK UP THE LEFT SPEAKER IT SOUNDS DISTORTED, I HAVE SWAPPED SPEAKERS AND STILL THE SAME.THE RIGHT SIDE WORKS FINE?

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If your speakers not wired up properly sometimes the bass can shake the wire off and it leads to a horrible crackly noise, make sure it's securely wrapped around and tied to the terminal. Otherwise it could be a blown speaker or you are trying to put more power into the speaker than the speaker can handle.

Posted on Aug 05, 2009

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Right speaker is distorted with low volume, left side is fine. Swapped speakers no difference (ie it isn't a speaker problem). Using the balance knob, full left sounds fine, full right is very distorted...


Possibly one of the power transisitors has gone out. They are typically used in pairs, and if one went out, this is likely what you would experience.

Open the unit and look for the power transistors. The have 3 leads and should be connected directly to a heat sync. If one burnt out, it will likely be obvious by just looking at it. Power transistors are cheap (>$10) and there are many online sources to by them from. With a litle soldering skill, shouldn't be too bad.

Mar 26, 2010 | Sony STR-DE705 Receiver

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The right speakers logitech Z 5500 do not work


try buying a new optical cable or change some settings on your tv.

Feb 04, 2010 | Logitech Z-5500 Computer Speakers

1 Answer

Sony DAV-SC8. I'm suddenly getting distortion


It sounds like the speakers themselves are the problem rather than the amp.
Although, it would be rare to have overdriven/blown the surrounds.
My suggestion would be to isolate which speakers or channels (on Amp) are at fault.
Swap left and right to see if the problem transfers across.

Sep 13, 2009 | Sony DAV-SC8 System

1 Answer

I have distortion coming out of my front right channel of my AVR


Yes, sounds like your DSP chip has an issue. Not an inexpensive repair if that's the culpret. Around 400-500 to replace the chip. It's an awesome receiver and worth 300-400 in repair, however, a 3800 or 1800 can be had for 600-800 depending where you look. If you need more help, post a comment and I can help you some more.

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Pioneer SX-750 Old School Need Help


It could be a dirty control or switch, working them back and forth could prove that. Other than that, It's likely bad outputs. A unit that old may have transistors for outputs but might be IC's. Transistors can be tested with an ohm meter to see if they're good or not. Also if it has transistor outputs, they may have a small value resistor on the Emitters, check those as well.

Hope that helps...

Geno

Mar 07, 2008 | Audio Players & Recorders

2 Answers

My right speaker does not work


My left speaker didn't work, I described how I fixed it here: http://users.tpg.com.au/malydog/fixits/logitechx230.htm

Jul 11, 2007 | Logitech X-230 Computer Speakers

1 Answer

Sound from all speakers problem


I would suspect the lead from your tv or video and swap this.ie where are you feeding tv signal to amp from.more than likely faulty lead or socket at this point.swap around the leads and see does fault transfer to the opposite channel.keep with it sounds like set up problem of some sort,.

May 18, 2007 | Sony HT-DDW750 System

1 Answer

Distorted sound on all right channel inputs


yep but if your not a tech you should take this easy repair to a pro. Your problem is an open emitter resitor and happens when the units over driven or a speaker is bad for a while while it was working. if your a tech then check all of the emmitter resistors. also it could be a bad output device. Good Luck

May 27, 2006 | Yamaha RX-V496 Receiver

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