Amp hybrid. It transistor (MOSFET power section) with a lamp inserted in the signal.
The connector includes a jack, 2 Speakon outputs, a send-adjustable return, a tuner output, an ID (pre or post eq, with or without speaker simulation), 2 jacks for connecting a footswitch jack and a cable for feelings of hunger.
The power is 540 W RMS (650 w peak) 2 Ohm (!), 270 W into 4 Ohms.
The amplifier has a gain for the preamp, filter "character" that boosts the bass and treble and midrange digs, setting a single compressor, a 3-band EQ section (bass and treble nonparametric, mid-wide semi-parametric), an "enhancer" (treble boost with a very high Q), a drive (or not tube) and a master volume.
-1 Because I would have liked additional medium band.
Configuration is very simple.
The manual is somewhat anecdotal (I would have liked more information about the technology, according to a technician, the EBS technology is very special but I do not know more).
It is difficult to get a bad sound of this head.
I play mostly funk-fusion with a Music Man Stingray 4 string. The TD 660 is ideal for this style. One can switch from one game to the fingers or slap trigger effects (octave, filter, distortion ...) while keeping a constant coherence in the dynamics and sound.
The use of a footswitch (optional) is significant, particularly to engage the filter "character" and the drive.
Some say that the EBS amps sound too transparent, or "clinical". I do not share that opinion at all. The sound of the TD660 is colorful even when all settings are stored flat. Its color is, I find it very musical bass. I tried to plug a guitar: it does not sound at all (well. .. some might perhaps love).
The bass is "hot" without being "muddy". The highs are present without being too flashy and mediums are never garish. Unless we do it on purpose, the answer is always balanced.
This marks the most about this amp is its punch and precision. The sound is very defined. In repeat my buddies all told me that since I use this amp, the overall sound of the group is much more connected. The bass is present but is ultra in its place! In short, we all Tripé thanks to EBS. This is
about 6 months I use it. I tried several other amps. There's no comparison, EBS is the most accurate (the Genz Benz are also very accurate but too aggressive for my taste) ... but hey, it's also the most expensive (I have not yet finished paying, but I regret nothing).
Another plus: DI integrated front is very good.
Little less: I would have liked a second medium semi-parametric equalizer. One can not always get what you want.
I hope at that price, it will take at least thirty years. If he disappeared, I could not do one any time soon and repay should put me on anti-depressant.