Sonically, the PF–350’s EQ circuit is comparable to a (tubeless) Heritage B–15R, with its bass EQ centered at 40Hz, mid–range centered at 500Hz, and treble centered at 8kHz. To its credit, this small amplifier has a lot of Ampeg character to it. Yet, in my experience, the PF–350 is best used as a practice amp or for low–volume rehearsal situations. However, like all of the other Class D amps we’ve reviewed, it does have a balanced XLR line out.

If you’re looking for a catch–all gigging and practice amplifier, go for the PF–500. With just three extra pounds added to the total carriage, the PF–500 adds in a solid compression circuit, an ultra lo that boosts the low–end response and cuts some of the mid–range frequencies, an ultra hi switch that enhances high–frequency output by 9dB at 8kHz, and a five setting parametric mid–range frequency selector.