> Thank you for the prompt reply :)
>
> I'll see what I can find in that range and solder it up tonight. I'm
> tempted to see if I can find room for a switch in the face plate too
> and solder that and a smaller resistor in parallel with R15 - that
> should give me the option of going back to the normal gain range if I
> need to.
>
> Cheers,
> Silas

I don't think that this is necessary as you have an attenuator at the audio
input that can be used to reduce the level to the desired value even after
the modification.

Best wishes
Dieter Doepfer