20 Most Recent Jamo MPA201 2-Channel Amplifier Questions & Answers


hi it sounds like the transistors are faling thanks stephen

Jamo MPA201... | Answered on Jul 16, 2015


I can almost guarantee that you'll find bad electrolytic caps on the power supply board to be the cause of the problem. I've seen several of these with the same problem. The protect circuit stays latched due to excessive ripple.

Jamo MPA201... | Answered on Oct 26, 2012


replace all caps in the power supply section, or send it to me , 727-289-9746

Jamo MPA201... | Answered on Jun 06, 2012


I can almost guarantee that you'll find bad electrolytic caps on the power supply board to be the cause of the problem. I've seen several of these with the same problem. The protect circuit stays latched due to excessive ripple.

Jamo MPA201... | Answered on Jun 06, 2012


Check the small electrolytics on the power supply board for high ESR, Very common problem on these amps. Protect circuit stays latched due to high ripple from PS.

Jamo MPA201... | Answered on Apr 20, 2012


Try to trace the fault systematically from one end of the system to another, starting with something that you know is working
  1. Start by checking your sound source (cd player or whatever) is working by connecting it to another amplifier or computer.
  2. Check the connecting cable is working from the sound source to the amp and is not shorted out.
  3. Make sure your loud speakers actually work (briefly shorting a 1.5 volt AAA battery across the speaker terminals should produce a crackling sound without doing any damage)
  4. Check loudspeaker cables are properly connected to output connectors and are making a good contact.
  5. Try connecting something like your computer speakers (or use the microphone in jack on the computer itself) to the line output socket of the Jamo. If you can get some sound this way it would suggest that the internal output overload protection fuse may have blown. You will need to open the case to access this. NOTE if your JAMO is still in warranty take to authorised repairer otherwise you may invalidate your warranty.

Jamo MPA201... | Answered on Feb 25, 2011


The 201 is 100w in to 4ohms and the 101 is 50w into 4 ohms other then that there the same

Jamo MPA201... | Answered on Apr 15, 2010


You need to determine if the power is getting to the audio amp section. For instance with the volume full up is it humming etc?
As a 'rule' it's unlikely that both left and right channels will fail at the same time (unless you have done something silly with the amp) you are looking for something that is common to both channels. Which is why the power section is first suspect. The exception to the rule (above) is where amps use say an IC power amp for both channels. You will find this IC on the big heat sink. Check whatever is on that anyway for damage or burning.
The only other area could be the pre-amp part. Again this could be a single IC controling both channels, so it's failure could cause a loss of sound. By the way if you can hear music/sound coming through when you put it up to full volume the pre-amp will be generaly good.

Jamo MPA201... | Answered on Nov 24, 2009


The manual doesn’t show a user replaceable fuse are you plugged into a house outlet or a power strip. If power strip confirm that power is present and try another slot to plug into. https://bcc2479de3c817356f4e-1bbe459354cb22c942d9efbc3d6dacbf.ssl.cf2.rackcdn.com/product-manuals/SUB210_OM.pdf

Jamo Audio... | Answered on Dec 22, 2018


Did you google it. Google, c80 sub woofer schematic, then look at images.

Jamo Audio... | Answered on Nov 04, 2018


Sorry we are not in the parts business.

Jamo Audio... | Answered on Sep 05, 2018

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