Interesting comparo between the Eden WT550 and original Puma 500. Been ABing these puppies for 3 days now and can't really decide which is the keeper. As soon as I plugged the Puma in I was pretty impressed - clean, punchy, dynamic.... and at 1/3 the weight (not a huge difference in size).
Flicking back and forth bw the Eden and Puma the Eden sounded like it had a blanket over the speaker. ... But the more I played I could hear the Eden having a more polished edge to the note. Up the neck - particularly playing my 51RI P - the Tecamp sounded a bit harsh in comparison - The Eden more round and woolly. The Tecamp killed with the Duesenberg semi acoustic (with rounds) and a 71 J (flats) but with a more middy focussed P bass (flats), the Eden had a sweet resonance to it that I couldn't find on the Puma. Maybe the clarity of the Puma is a bit lost using that kinda bass. I tried a few pedals in the loop - VT with mild OD, FEA Comp, Empress EQ to "smooth it out"... didn't really get it.... Not something you'd hear if you didn't have both amps back to back - certainly wouldn't pick it in a live situ.
I haven't gigged the Puma but I can tell that the clarity and dynamic would help cut through and give a really articulate line live..... and it weighs nuthin. And Ken - I actually quite like the taste knob. It's subtle enough but I can see myself using that for uber quick tone tweakage on stage to pump mids/bass. Most of these filters I find you get a sound and stick to it. For ever. But I think that one might get a bit of use.
Yeah, the original Puma is very neutral, clean and wide. It has a HUGE low end (very different hi passing than the Eden or the new Puma), and a very hi fi, crystal clear top end. VERY different tonalities between the much tighter, much more midrange voiced, much higher midrange distortion levels, and somewhat more lo passed top end and hi passed low end of the Eden. The newer Puma line would sound a bit more like the Eden, but would still be cleaner and more 'accurate/neutral'.
I LOVED my original Puma500 at home, and on more jazz type hits. That super wide, super clean tone tended to work against me a bit in a more pop/rock mix, and similar feedback from a lot of players results in the revoicing of the current Puma line, which doesn't sound as 'amazingly glorious' at home, but punches through a mix quite a bit better than the original voicing. IMO and IME.
And yes, while that filter is pretty extreme, it can surely be useful for some.
Edit: +1 also that the original Puma was not optimized for 'vintage' instruments like J and P basses IMO. I called that head the 'Anthony Jackson' head, as an oversimplified way of describing the huge low end, the lack of any sort of midrange distortion, and the very flat upper mid/treble response that extends up into the stratosphere. That can be an amazing voicing, and is quite similar to the Glockenklang amps. The new Puma (which I had a minor role in the voicing as a field tester of an early prototype) is more like, well, a 'better Eden' to my ear... punchy, with some mid character, but more even, smaller, and 'cleaner/more accurate' without being sterile on the one hand, or overl y wooly and midrange distorted on the other hand!