50 Watt All Tube Combo
Preamp: 12AX7 3
Amp: 2 EL34
One hp: G12M70 for me.
2 inputs a LOW and a HIGH, I use only HIGH.
Settings: volume, preamp
-Master volume
-Treble
-Middle
Bass
-Presence
Note the absence of effects loop. Too bad.
So it makes us 6 knobs, it's enough knowing that the goal of the game is to put at least 4 (this is its weakness: the sound is good and the settings effective only from the threshold).
On the back: 2 HP, power supply, impedance (ohms 4,8,16), and current setting by country.
The whole thing is really heavy: 25kilos I think it's strong!
So I put 8 because of the history of the volume and effects loop.
Good day at the same time this amp, it is older than me!

UTILIZATION

Simplicime configuration.
For audio, from four (again ^ ^) we get different knobs sonoritées with an amp but it really very typical and these settings do not change fundamentally sound. It's still very very marshall, jcm 800 is the normal: the holy grail.
I had no manual when I bought second-hand '. No need to be really limited to not understand.
It is this side that I like simple, in fact the amp is a base (excellent) and if we are to obtain a one seeks the good effects and everything what.
After 45min-1 hour the sound is really soft, thank you for the lamps, do not hesitate to heat they require only that!

SOUNDS

HIS ha!
Name Groum a mustache!
What a potato! What grain! It drool at will!
I use a les paul, and there is much less versatile but it is on What's Bondiou! It's really rock (no need to quote the famous guitarist playing on it ...).
The dynamics are outstanding, many medium (this is true it's not a myth) and harmonics are truly great.
The level of gain is not huge, but who cares it all pete (ok it's not that the arguments).
Personally I put the preamp to 8, the master at 6, and the rest to the bottom most of the time.
The notes come off well in rhythm it's still sketchy, it is a jcm 800 what, you love it or hate it but let the "Marchemall" or "yeah mesa c too are many better and more buttons." NO, Mesa's different, like Fender and Vox others.
Each brand has its signature sound.
The JCM 800 sound good vintage, it does not at all the same grain as the more recent series like jcm 2000 and for the Vintage Modern I never tried.
We can go from clean to crunch to overdrive trend not only with the knob of the guitar, it's magic (this entry on HIGH, LOW in clean and clean c frankly I find effete)

OVERALL OPINION

I use it for six months, I like it more and more ...
I try fender twin, B52, Vox AC 100, and a jcm 800 100 watt lead was not the same grain (this model has 2 overdrive channels and the channel has more gain than mine).
The value for money is excellent: I bought 700 euros and heads mesa or orange to 3000 euros do not sound better (my opinion).
Now I hesitate between several overdrive pedal to add some grain and gain.
I will also add an effects loop.
I obviously do it again this election ...