Recommendations for good Class A SS Amp 100-200W


I had been very impress by my friends set up where he bi-amps his celestion SL6000 speaker with a pair of Krells - KSA100 & KSA250. Both are class A and I haven't heard bass slam like his set up since.

I now have gotten hold of a pair of Celestion SL6000 but I haven't been able to reproduce the bass slam and solidity I remember in my friends set up. I'm driving mine with Ampzilla 2000 MK2 and Mccormick DNA 500. Both have 2-3x the power ratings of the Krell.

I'm suspecting it may be due to the Krell's Class A bias. So looking to find a pair of amps that may better suit the Celestion 6000's. I have a pair of VTL 450MB which I intend to switch in soon, but haven't gotten around to it yet. That may do the trick for me as well, but need to find out.

I know I can find Krell's like my what my friend has easy enough, but I know Plinius and others are making SS class A maps still. So wondering if anyone has experience with the more modern Class A SS amps and if anyone can comment on how these compare with the old Krells.

Gerald
geraldedison

Showing 2 responses by geraldedison

Thanks for all the suggestions and insight.

perhaps I should provide a bit more context of my set up and room situation.

My set up is::

PS PWD Dac =>Joles Electra LA-150MKII => Ampzilla 2000MKII => Celestion SL600; McCormick DNA 500 => Celestion 6000 subs

The Celestion sl6000 system is a monitor+di-pole sub combo, where the monitor is a SL600 and the 6000 subs; So I pretty much have to bi-amp.

My set up is in a dedicated music room ~ 22x26x8 with a fair amount of sound treatment. I have 2'x6' bass traps in 3 corners of the room and sound panels in the other four walls.

I did move the bass traps out of the corners of the room to test things out. There was more bass, but not the slam level that I'm still seeking. To be clear, it isn't deep bass I'm missing it is that slam factor as mentioned above.

I recognize the Krells are know for slam and dynamics but the Ampzilla and McCormick had been know for being high current amps too. This is why I'm some what puzzle especially because my friends amps were just 100w & 200w krell's and the Ampzilla is 300W and the McCormic is 500w into 8 ohms.

I had ran the system using my PS PWD direct into my amps just to make sure the Joules Electra was not the factor as the Joules is a tube pre. There wasn't any noticeable loss of bass when I had the joules in the path, so it stay.

Both the McCormick and Ampzilla had served me well with many hard to drive speakers including ribbons and electrostats. I'm some what stun that a cone speaker would be tame by these beastly amps.

Do Krell's really have such dominance in the slam department that even well design amps such as mine are not in the same league?!

Would love to hear from someone who has heard my amps and Krell's to tell me if I'm just going down the garden path here.
thanks for the tip on the review.

I am looking for that taut, gut-punch as you described. That very much what I heard/felt in my friends basement with his SL6000 and the Krell combo.

His basement was bigger than my listening room and even in moderate volume, he had room locking effect with some of the heavy bass material we were sampling.

I couldn't achieve that same room locking effect with the same recording in my room thus far.

Crazy to think I may have to lug one of those monster Krell's into my 2nd floor listening room...probably will break my back doing so :)