Any amp transistors.
300W
Front: 2 inputs active / passive, an effects loop.
Rear panel: 2 HP output, one is already taken for the HP 18 "
Settings: Master, Treble, Bass, Mid with a choice of frequency to reduce or increase, Compressor On / Off
No effect.

UTILIZATION

Very very very simple configuration.
Easily obtained a good sound, and with the HP 15 "is better ... love the bass
I did not have a manual.
Additional info: it weighs 57kg (!!!) and has handles and wheels (essential).

SOUNDS

It is suitable for rock, blues, jazz ...
Used with a Vigier Passion and Noguera Expression.
You get what you want from this amp, the trick is knowing the right amount.
If the grave is particularly clear on this amp.

OVERALL OPINION

I use it since 1997. I sold it in 2004 because I use it more.
What I like most: the sound, the available power, strength ...
What I like least: transport ...
Very good value for money.
I would do this choice. This amp is a good investment and couvient ideal for small to medium rooms: concerts, rehearsal.