This is an analog transistor prampli guitar electro-acoustic acoustically correct sound, but produces no effect.
This is also solid mtallique bote bote very practical to live with at the foot of slction prampli or not.
-XLR
-Jack Output
Jack-between
-9V power supply or transformer 7 17 V DC. (But I use the battery because it has a fairly long life approx 150 H).
-Select active / passive
-4 Potentiomtres of rglages.

UTILIZATION

Operation is very easy, 4 potentiomtres rgler:
SO TUNE: to position a frquence cutoff 40Hz 210Hz (low-pass filter for the familiar).
LO BLEND: Change the amplitude of the signal or effect.
HI TUNE: same but 300 3kHz
HI TUNE: idem.
These rglages can actually compensate for absent frquences guitar. There is no rglages MODELS, I think it's personal plutt according to the scratched each. You have to find your happiness!

One has the impression that the sound is made by a live microphone that has the effect of making the sound a bit warmer (but not like an amp all lamps of the same!)

SOUND QUALITY

I use it on a Yamaha CPX 5 electro-acoustic and it's true that I expected more when I have tried everything you told me much about this bote! However APRS several tries, I was able to find the right rglage and frankly has changed. I feel like a better guitar! It is also true that the quality of the strings also affects (I use the elixir, the best I think!) But a low end guitar, we can work something out ...

For those of you who like your bass served! We feel they are Submitted, power and quality sound that comes out is quite impressive! use with modration if we replace the bass player!

The frquences mdium the bote are also trs apprciables but I use them too because prampli the guitar brings out the.

OVERALL OPINION

I use it for 1 year 1 / 2 and I am satisfied with TRS. I have not tried it with a multi purpose but I think it has to be pretty good!
My wish would be to test it with a superb guitar taylor or ovation! A day will come .....