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Posted (edited)

I've recently purchased a 2nd hand Spector Euro LX4 which I love a lot both in terms of playability and sound BUT I have a problem, I guess, with the Tone Pump preamp.

Instead of trying to describe it in my non native language I attached an audio file of the noise I get from the preamp for you to listen. At the beginning of the audio file  bass and treble knobs are fully counterclockwise and you could hear the very annoying noise: then I go to full on the treble knob and you can of course hear the noise increase.

Before giving your valued advice please note that:

1) The noise is always there:  it gets worse if I stay closer to the amp and face it  but, tough less evident, it’s still there even if I stand 6 meters away and turn my back to the amp.
2) It’s not the battery (tried couple of fresh duracell 9v);
3) It’s not the cable (tried many);
4) It's not the amp (other basses don't do it) and It’s not the preamp section of the amp (-14db is engaged on the preamp, if it’s disengaged things get worse; also if bass is plugged in the effect send/return of the amp noise it’s still there).

5) It’s not a matter of adjusting the trimpot on the TonePump (noise it’s still there even with the trimpot almost to zero);

Thank you for any idea, tought, advice you want to share..

 

Edited by michele

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