Transistor technology + simulation "lamps". Everything has been said, but small problem: the on / off switch on the back. The machine heats up a little: I think it is useful to give him some space in a rack ..
Functions of the beast: preamp / compressor-esser / equalizer.

UTILIZATION

Ergonomic flaw on the knobs of EQUAL. : Too close, wrong place, difficult to read, I confirm. Still, the editing of sounds is quite simple ..

SOUND QUALITY

There, indeed, is the highlight of the machine: the sound! This preamp. brings a lot of potatoes and definition to what you spend it. A voice, for example, has more presence and musicality with the Eureka with the preamps a table mean ... it's pretty obvious.
The preamp. can make a very interesting color knob with a simulator of its "lights" I made a recording of acoustic guitar with an SM57 in the past Eureka: result: superb musicianship and harmonics with a shovel!

OVERALL OPINION

I have two, with digital output card for about a year ..
What I like: the sound, versatility, musicality
What bothers me: usability, readability
I knew TL Audio (5051, not bad ..) Focusrite (blah) ..
I paid the two preamps + I / O card 192 about 1050 to 1100 euros. This product has a very good value for Q / P.
I guess I would do this choice, but you never know: there may be better for less today!