wayne3720
Many Belles amps are just around 1v input sensitivity for full output.
Make sure you pick either a passive preamp or active with little or unity gain.
The last thing you want is to have loud listening level around 8 to 9 o’clock on the the volume knob.
And if your source/s have higher than 2v this will exacerbate the problem even more.
Cheers George