see site
http://www.engl-amps.com/index2.html

Manual
http://www.engl-amps.com/manuals/E670-ba.pdf

with all that you do your idea.
See also the "5th channel". behind.



UTILIZATION

for the manual is available only in English or German.
config ultra simple, it's a guitar amp anyway,
despite all the buttons were easy to use, provided you have the MIDI-pedal.
You choose your channel on the pedals, you make your adjustments on the amp you can save by just pressing (write / copy). only the EQ settings are not saved.


SOUNDS

then say that this is a must.
I compared the day of purchase a mesa roadster, Dual Rectifier, JVM 410 and powerball all in the same cabinet (a mesa 412 in V30)
is the best of all, I liked the powerball but not as versatile for my use.
Its very soft and "analog" on all channels, compared to the JVM 410 which resembled a Metalzone.
Not aggressive to me, but I have V30s.
they spend little of their vintage / modern
Hi gain / normal
Deth boost
Mega Lo Punch
Blue Flower / Big Volcano erupts

we must also try out preamp DI at the back, the sound is exceptional, we can dispense with microphones before the HPs, I'm sérieux.faites test. When he went to the loc ingestion are amazed.

I play rock, Heavy, etc. of baloche, it adapts to all styles
I use a Kustom section 412A in celestion V30s.par cons I never use it in 50W, lack of chest.

What about
I found my amp.


OVERALL OPINION

now after a year of use, 2 seasons
it is top
what I like most:
sound, MIDI implementation, the 3 FX loop, DI output, the look that kills.

what I like least:
the fx loop 1 and 2, there is always an active loop.
the Tolex fragile.