Question about KLH R3100 Receiver

1 Answer

KLH Scratchy Channel

I just purchased my KLH R3100 and shortly after 5 days the left channel became scratchy and really annoying and the volume coming from it would go soft then high and then would continually go in and out of the scratchiness. It did it once before so i replaced the speaker wire and it worked fine but now its doing it again. What should i consider doing next?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 3,130 Answers
Re: KLH Scratchy Channel

Return the unit to where you purchased it and get a new one.

Posted on Sep 19, 2006

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Sound center

Replace center channel speaker with known good one. If no longer scratchy then the voice coil of removed unit is rubbing against the magnet pole and the speaker needs to be replaced. If the replacement speaker also sounds bad, then the amp for the center channel needs repair.

Nov 23, 2013 | Yamaha RX-V490 Receiver

1 Answer

Sony str-de185 left channel very scratchy and poor; not speaker, wire, or connections

Could be an open resistor in the amp for that channel. Might have to have a pro look at it.

Mar 26, 2013 | Sony STR-DE185 Receiver

1 Answer

What are the buttons for

There is no free download. If you want to get its manual, there are some paid download sites; and hereby send it to you. Just try them.

Feb 12, 2012 | KLH R3100 Receiver

1 Answer

When i tunr my KLH R3100 it gives me an error massage that says PROTEC then powers down. i thought that it was because of poor ventalation but it has pleanty were it is set up. thanks

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections as a root cause for intermittent shutdown.

Feb 21, 2011 | KLH R3100 Receiver

2 Answers

Right front channel not working

try to check balance adjustment if working.

Apr 16, 2010 | Sony STR-DE475 Receiver

1 Answer

Akai recording problem

You might have a bad cable to the recorder (try swapping the right and left connections and see if the problem moves to the other channel), dirty tape heads (use a cotton swab and head cleaner or isopropyl alcohol to clean them), or a circuit problem inside the recorder. Hope this gets you started!

Nov 19, 2008 | Audio & Video Receivers

1 Answer

Center Channel problem!!!

fm is sterio thats why dont use it in that mode use sterio mode only for movies with voise ok

Jan 26, 2008 | Denon AVR-485 Receiver

1 Answer

KLH R3100

Try pushing the speaker button under the power button on the front.

Aug 02, 2007 | KLH R3100 Receiver

1 Answer

Center channel turns scratchy.

Sorry to inform you, The driver transistors or IC is going bad, or there might be a poor solder connection on the center channel Amp. If you know how to solder, you may be able to poke around at the center channel amp circuit, with a wooden or plastic tool, and maybe see where the bad connection(s) are. To get a shop to looki at this unit, may not pay, but that is all up to you, on how much you paid for the unit, and how much your willing to pay to get it fixed. Read this great article and see if it helps you to decide. Good Luck Please do not forget to rate this thread.

Dec 17, 2006 | KLH R5100 Receiver

Not finding what you are looking for?
KLH R3100 Receiver Logo

Related Topics:

171 people viewed this question

Ask a Question

Usually answered in minutes!

Top KLH Audio & Video Receivers Experts

The Knight
The Knight

Level 3 Expert

66499 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

5327 Answers

Larry Stiles
Larry Stiles

Level 2 Expert

286 Answers

Are you a KLH Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides