Need help with old(ish) amplifier

tanksnr

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Hi all,

I've posted this in the "Trusted Repairer/Tweaker database" thread but thought I'd post here for more visibility.
Hope you don't mind.

I'm looking for a tech in Johannesburg or Pretoria.

I have an old-ish (late 80s) amplifier that needs a bit of work.
The amp was serviced a few months ago. The tech cleaned pots and re-soldered dry joints.

Currently, on start up, there's no sound unless turning volume quickly back and forth to over 4.
Once playing, right channel plays very low, very little bass
It improves somewhat after a few minutes, but it remains lower than the left channel.
Adjusting bass using the knob sometimes makes right channel play better, bit of crackle.

After a while, or if playing a bass heavy song (low frequencies), I get distortion (on both speakers) if I turn bass to full. This regardless of equalizer settings.
If turn bass knob even slightly lower, distortion stops.

Not sure if the speakers and crossovers playing a role.
 

Trompie67

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If you're looking for a tech to have a look at and repair the amp then I'd happily recommend Nilam Naran. His details are in the Trusted repairer thread.
 

Orcish75

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If you're looking for a tech to have a look at and repair the amp then I'd happily recommend Nilam Naran. His details are in the Trusted repairer thread.
^^ This!!

Nilam has repaired and serviced a few of my amps over the years, great service, well priced and really nice guy to deal with.
 

marantz123

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Looks like a decent layout with discrete outputs. Shouldn't be too much of trouble to sort out.
 
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