So in order from the photo:

Jack-Between passive / active
Prampli-A (tube) and prampli B (transistor)
Compressor with a knob above the LED indicating whether the threshold of compression is achieved
Graphic-equalizer 10 band (30Hz to 8KHz, with action of + / - 15dB) with a mini red LED on each knob, trs reprage useful for a rapid adjustment in the dark and left a button to enable / disable the equalizer
-Contour settings low pass and high pass
-Master
All right-the on / off switch ...

At the rear:
from left to right:
Fuse, select the supply voltage and power cord connection
Two-out Jack for HP
-Fan ~ ~ 7cm
-entre/sortie effects loop jack
-Balance effects loop send / return on a potentiometer being protected in a recess of mtal (very easy to CSTA)
-Output XLR direct out with two buttons the same type as that of the equalizer, one for the XLR output pre and post legalization, the other for the exit "normal" or "gnd lift "(DSOL I do not know what it is adjustable ... if someone can explain to me ... ^ ^)
A-arati allowing air circulation
Power:
-240 Watts into 8 ohms
-350 Watts into 4 ohms

Electric Power:
560 watts at 115 or 230 volts AC

Weight: approximately 16Kg (fist on the transport cot right)

I think I have not forgotten ^ ^

UTILIZATION

The trs rglages are simple but difficult to find.

It is not hard to do trs rglages these, but the amount of possibilities is such that one can get lost ...
Both pramplis can make a good shuffled hybrid, with a saturation trsdre get - I think this head is not made to be pushed to saturation, d ground for the followers but no pb with effect pedals,
The ultra powerful followed by the legalization rglage Contour offers a huge range of sounds, but the graph is legalization pluttdre argler-if you do not know what type of t must rglage tonner to find the DSIR-
Coupled with baffles and VX115 Hartke 410XL is standard. Incredible power, he makes out its 240 watts into 8 ohms. Personally, I was not expecting it at all, and when I put the Premire use two pramps to half the equalizer and the master disables a 5 / 10 ' is to say, a shake!

So, I find that getting a "good sound" is not too dr, but finding a particular sound is not given.

The manual ...
Actually I have not used too so my DSOL incapacit about the "explanations" of the manual (which also seems to be enough complte)
The one I have is in English, so the level of clarity dpend your level of English
It is the same for the HA3500 and HA5500 (<=! Is he a fool to use a 500 watts while a 350 dja made the ground shake, and quite a few eardrums ^ ^ -? ) it contains a very useful part: a kind of REPRESENTATIVES of the front to record all rglages ...
There is also a diagram of the electronic circuits

SOUNDS

I&#39;m using right now a Squier precision bass and a multi effects BOSS ME-50B connected between the "active"
I have no way of prdilection but with the distortion of I-50B to say anything, like all other effects, a very precise sound, many dtails (as rglages. ..) in clean, like, no problem, according to the rglages, one can have a his "crystal", a lot of attack, the slap is standard, there may be sound as "fat", few attack, well rounded, well ... finally A few prs all sounds are possible!

personal right now I mix 3 / 4 tube and fourth transistors, the relatively low compression (I use that of the ME-50B, that of the head does not serve me much) the curve of the equalizer increased from approximately -4 30Hz on "straight" up about 13 on 1KHz, descends to 2 / 3 of about 3 KHz and goes up the last UP TO about 12 on 8KHz (the curve is little prs / v) low pass -3 contour, the high pass 4.5.

I like having a lot of slaps to attack while keeping his "round" for the game to the finger.

OVERALL OPINION

I do not use it for long trs (late June / July 2006 beginners) and I find this amp gnial! a wide range of sounds trs, we can do anything with. I find it provides a little prs all levels.
A little more than this amp I do not know if it&#39;s the same on all the heads he has a relay output cut IMMEDIATE HP from fire extinguishing. Trs useful if taken to unplug the multi ...
Single point with which I struggle: the effects loop, which does absolutely not, but I think it plutt me who can not make it work.
"This is my Premire head", and frankly, I find it great (as you have seen ...)
I have not tried many other models, I think it worth the 450 which I got. Well we must add the speakers, a sizable lment of the amp I think ^ ^
<p class="bbcode-offtopic"> Off topic: <span>I find it and also that the 410XL speakers and Hartke VX115 go well with this head ^ ^</span>

Even if the uses are somewhat Premire DRES of the relative complexity of rglages, the final result still be a wonder, the fan who, at first, seems noisy quickly covered by the baffles.
The master runs at around 1 / 10 max when I&#39;m working in my room, it does not rise much more in RPET &#39;.
I have not had a chance to test it live.
on the other hand, if "it is pushed a little," the cot 8-9 / 10, barely touches the string and the ground begins to shake ...
A monster strongly deprecated the neighbors if they live within 300 meters. And again ...