I really like the old Eden stuff, partly because I have one. I have a WT500 that was hotrodded up to 800-watts bridged by David Nordschow. It lived on his testing bench where he designed and tested speaker cabs.
pros:
• It has plenty of extremely clean power (800 watts at less than 0.01% THD).
• very clean, clear, and warm sound
• extremely musical EQ with three (3) semi-parabolic EQ's along with the standard bass and trebles shelving EQ's. This allows me to boost or cut any frequency range I like by 15db. Makes it easy to dial in the room or a particular sound. If I want more thump in the chest that will cut through the mix, I boost the 250Hz a bit. If I want an edgier sound, I'll boost the 2.2KHz a bit. I can really make it sound however I want, BUT, would need to resort to a pedal for true distortion
• If I want to use a lot of cabs, I can run up to 4 8 ohm cabs on this amp. It is a dual-power block amp with each side handling a 4 ohm load.
• When I run it in dual-mono (cabs attached to separate channels) I further have a "Balance" knob that lets me blend the sound from the two channels. I used this for years to get rid of the boominess of the GK115blx I would plug into one channel by just turning this knob over 2 or 3 clicks toward the side with the 410 in it - very handy control.
Cons:
• Auto compressor is good for slap and that's about it. It sounds like a hard knee compression to me and with finger-style doesn't sound good. I almost never play slap, so I leave the compressor off.
• Can't go down to 2 ohms per side/4 ohms bridged like the discontinued WT800C can. I get around that by just bridging at 8 ohms into my DNS410 cab.
The new Eden WTP's do this one better by including a tube not only in the impedance section (where it added warmth to the sound) but also another tube in the gain section. Nice thing about the gain section tube is you can not only control how much distortion you get by overdriving it, you can control how much of the overdrive sound you can blend in with the clean signal. So sonicaly, it's even more versatile.
Disadvantage is that it cannot bridge at 4 ohms. It delivers 900 watts at 8ohms bridged whereas the discontinued WT800C models delivered 1100 watts at 4 ohms. If you plug in two 4 ohm cabs the WTP900 will automatically run them one in each side at 450 watts each. Not really a big problem, but you can run the Eden D810XST bridged on that new amp and that just doesn't make any sense at all.
Probably the one amp I would consider buying would be the DNA1350. That's David Nordschow Amplification and this is a class D amp with a new, patented, class D power section putting out 1350 watts into a 4 ohm load (single power-block amp). It also has a studio quality compressor on it, so no need for a separate one, and has regular and side chain effects loops. Doesn't have the semi-parabolic EQ's but does have treble, low mid, hi-mid, and treble along with a shape control knob too, so plenty of flexibility on the sound shaping. Again it produces a very clear clean sound and if you want distortion, you better run it on the side-chain and mix it in or just use a stomp box. I don't use distortion, so I'm not worried about that. I'm really pretty happy right where I am.