Fitting Zero-Loss FX into Marshall 2205 / 4210

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ricksteruk
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Fitting Zero-Loss FX into Marshall 2205 / 4210

Post by ricksteruk » Sat May 31, 2014 11:56 am

Hi can you help? :help:

I'm not really happy with the FX loop in my 4210 combo - there are two major problems:

Firstly, the Marshall FX loop levels seem wrong for my pedalboard and it's it a bit of a struggle to get it work without overloading the FX return - I need to use an Alesis EQ to reduce the signal level / change impedance so that it works.

Secondly the Marshall FX loop is pre reverb - which is not ideal - the reverb should be after most of the FX in the loop.

(A third niggling problem is that the FX loop is after the Master Volume - but I seem to be stuck with that as the normal channel and the boost channel join at the MV pot!! :bang: )

I'd like to install a Zero-Loss FX loop just after the MV so that it's before the reverb circuit. I hope I can do it without having to cut tracks on the PCB... that might be one step too far for me - but I am happy to unsolder caps or resistors carefully.
(Link to the schematic - http://www.drtube.nl/schematics/marshall/2205prem.gif)

Would the Zero-Loss FX loop work well at this location? Anyone tried this?

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