Question about Adcom Amplifiers & Preamps

1 Answer

I am looking for a repair facility for Adcom pre amp and amplifier in Orange County, CA

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 140 Answers

Here are all the repair facilities listed with Adcom for Califorina.
Hope this helps.

Accutech
16617 S. Normandie Ave, Ste. C
Gardena, CA 90247
United States
310-324-7406

Classic Audio Repair
3401-F Adams Ave.
San Diego, CA 92116
United States
619-282-9101
classicaudiorepair@gmail.com
http://www.repairaudio.com
E. Joseph (walk-in only)
3969 S. Sepulveda Blvd.
Culver City, CA 90230
United States
310-390-1077

George Meyer TV & Stereo
12418 Santa Monica Blvd.
Los Angeles, CA 90025
United States
310-820-1113
georgemeyer00@aol.com
http://www.georgemeyer-av.com
Northridge Electronics
4505-2B Industrial Street
Simi Valley, CA 93063
United States
805-583-1919
HADRIAN333@YAHOO.COM

Scan Audio Service
8101 Orion Ave, #5
Van Nuys, CA 91406
United States
818-786-4240
scanaudio@sbcglobal.net

Solutions! Speaker Repair of California
4334 Sunset Blvd.
Los Angeles, CA 90029
United States
323-666-4161

TV Unlimited
1296 Kifer Road, #601
Sunnyvale, CA 94086
United States
(408) 733-6913
kdpark@sbcglobal.net

Posted on Feb 20, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do I eliminate buzz?


Things to check:
1. With your multi meter, measure from left ground to right ground. What do you get? Measure from each input ground to chassis. What do you get there.

2. Get or make a pair of shorting plugs. Plug those into the inputs. Power on. Hum there or gone?

3. Turn the pre-amp on. Connect. Level of hum change with preamp on?

4 additional information. How efficient are your speakers? This is a big amp, high-efficiency speakers may show some noise, while low-efficiency speakers won't.

A trip back to the shop may be indicated, too.

Nov 23, 2015 | Adcom GFA-5500 2-Channel Amplifier

1 Answer

I want to bridge 2 adcom GFA 555 amps to my sony DA7ES any suggestions


Obviously you are going to use the Front pre-out's on the Sony to drive the Adcoms. its pretty straightforward, just do not use a speaker that is less than 8 ohms. and make sure that you always have the power switch off on the adcoms, let them sit off for 5 minutes, THEN hit the bridge switch on the back of the adcom's and follow their instructions for bridging. it's pretty easy and tough to go wrong. Good luck...Rob

Apr 18, 2015 | Adcom GFA555 Amplifier

1 Answer

How do I fix FM problems with Adcom pre amp?


The problem is your RF signal, it is to low.

May 14, 2014 | Parasound Amplifiers & Preamps

1 Answer

My adcom 5400 amp is causing distortion in the left and right ouputs. it started doing this the other day after a lot of music playing. i wanna know whats wrong with it


THE AMP HAS 4 FUSES INSIDE, 2 PER CHANNEL. YOU NEED TO CHECK THESE FUSES. BE CAREFULL, HIGH VOLTAGE- UNPLUG POWER CORD AND LET THE AMP STAY FOR COUPLE HOURS. REPLACE ONLY WITH PROPER VALUE FUSES 5AMP. IF BLOWN AGAIN, NO MORE ATTEMPT TO REPLACE - YOU NEED TO SEND IT TO REPAIR FACILITY LIKE THIS

Sep 13, 2011 | Adcom GFA-5400 2-Channel Amplifier

1 Answer

My Adcom GTP 760 Preamp/Processor produces a hum that is affected by the volume control. I think it must be a bad capacitor in the power supply but would like your opinion. I do not have a tech manual...


This is not likely a power supply problem, but is isolated before the pre-amp stage. This can be a defective IC in the preamp stage as well.

Adcom schematics are not generally available, but you may be able to isolate the problem with a little experimentation. Try to run a signal through to see if you can get the signal as well.

Please update this with your results.

Thanks,
Dan

Aug 17, 2010 | Adcom GTP-760 Amplifier

1 Answer

Adcom 7500, Adcom 5400(bi-amp), Marantz AV-9000, Dakiom HA103


Try just the power amp on ..nothing connected
no Dakiom thingy either. It's a matter of elimination. Start at the output device and work back. Keep the Dakiom out of the loop.
If there's hum with just the Adcom..then it's the ADCOM

Mar 25, 2009 | Adcom GFA-7500 5-Channel Amplifier

4 Answers

ADCOM GFA 5802 POWER AMP NO SOUND, BUT POWERS UP.


Remove the output transistors and measure each of the sets of 3 pads and report the voltage readings here. I suspect that you have either a blown driver circuit or output transistors. The voltage readings will give me an idea on where to start looking for specifics.

Thanks,
Dan

Nov 11, 2008 | Adcom GFA-5802 2-Channel Amplifier

1 Answer

Just buy an amp


Yes, -- the GFA555ll is a power amp that needs a pre-amp for control. A good recommendation would be GTP500 pre-amp

May 29, 2008 | Amplifiers & Preamps

Not finding what you are looking for?
Amplifiers & Preamps Logo

Related Topics:

628 people viewed this question

Ask a Question

Usually answered in minutes!

Top Adcom Amplifiers & Preamps Experts

 Grubhead
Grubhead

Level 3 Expert

4567 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers

Pieter Vleeshouwers

Level 3 Expert

1410 Answers

Are you an Adcom Amplifier and Preamp Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...