
aaronmcoleman
The truth is out there!
For playing non-master volume amps at lower volume, I kinda prefer attenuators to boosts on lower settings.
You asked about JFET and MOSFET boosts (versus IC and transistor boosts). JFET and MOSFET have high input impedance (a good thing) and preserve the highs, so most of them seem to have kinda hyped highs, think SHO. Most transistor boosts have low input impedance (generally not good) and lose some of the highs giving a perceived bass/mids boost, think EHX LPB1. So for what you're doing that JFET boost is probably a good choice. But, if the volume on the amp is low, the bass might be kinda flubby...if I were trying to do what you're doing I might get a used LPB1 for $40 and see if it evens out the low end and gives you good bedroom volumes and tone.
You asked about JFET and MOSFET boosts (versus IC and transistor boosts). JFET and MOSFET have high input impedance (a good thing) and preserve the highs, so most of them seem to have kinda hyped highs, think SHO. Most transistor boosts have low input impedance (generally not good) and lose some of the highs giving a perceived bass/mids boost, think EHX LPB1. So for what you're doing that JFET boost is probably a good choice. But, if the volume on the amp is low, the bass might be kinda flubby...if I were trying to do what you're doing I might get a used LPB1 for $40 and see if it evens out the low end and gives you good bedroom volumes and tone.