2. amps-preamps
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GaN amps: Peachtree or LSA Voyager?

Peachtree 400 and LSA Voyager GaN amps: Does anyone have direct experience with both of these amps? Can you comment on any differences that might exist in sound? I know the internals are supposed to be the same but even if that is true implementation can make a difference. Both are highly regarded by those who own them.

Might also be helpful if you listed the rest of your system (Pre and speakers).

My current system is: Bricasti M3 DAC; Rogue RP-7 (NOS) pre; Bel Canto Ref600M amps; Fyne F1-8 speakers.

Thanks in advance!

markmuse
pehare's avatar
pehare
831 posts
 

I for one am seriously looking forward to pairing the new class D Atma-sphere monos with my Tannoy Stirling GR's.....ye MF'in ha!

jjss49's avatar
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jjss49
6,612 posts
 

My theory is the the way various amps make distortion has a lot to do with it. I used to think it was how well the amplifier was able to get phase relationships right and I still think there’s something to that, but by no means is it the only thing! One thing that seems to have a bit of correlation is the decay in harmonics as the order of the harmonic is increased. It needs to be on an exponential curve. Another thing that I feel needs more research is the role that the 2nd and 3rd harmonics play in allowing the ear to make out the detail required to reproduce the soundstage correctly. This relates to my first sentence in this paragraph. If the amplifier isn’t devoid of distortion but the 2nd or 3rd is too low, apparently that can prevent the amp sounding 3D.

IME the class of operation has little to do with how well the amp is able to winnow out soundstage depth and detail.

thanks ralph for your thoughts, i tend to agree it is about higher order harmonics in the distortion profile and how these affect the auditory sensation of the decay of notes

tweak1
3,561 posts
 

@pehare 

That should be an interesting review. I have mad respect for Ralph, though Ive never been in a position to buy his kit. Why not start your own thread?

 

markmuse OP
251 posts
 

@pehare A dealer loaned me a pair of the Atma-Sphere GaN monos. They are indeed very nice. Interesting that they have a big toroidal transformer, the only D I have come across that does. I could eventually end ups with a pair. Just wish they had more power. At the time I was still using my KEF Reference 1s which benefit from lots of juice.

snapsc
666 posts
 

@markmuse 

It will be interesting to read your comparison of the Voyager and the Atmasphere Class d monoblocks.  Based on the specs of your speakers...it appears that the Atmasphere could easily drive them to over 104db at a listening position 10' back so I'm not sure more power would really be of much value, especially since the speakers are rated at 90 watts max continuous power handling.

 

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