Atma-Sphere Class D… Amazing

@atmasphere Thank you for your post.

Hi Ralph,

Would you mind reiterating your past comment of how Class D (yours and perhaps others) have finally made the leap to outperform tubes (yours and others)?
thx

@atmasphere (Ralph) 

As always your explanations and insight are most appreciated and welcome. I agree with your “no accounting for taste “ as this is true. Be it audio components/music genre/food or automobiles etc. as human beings, We like what we like. 😊

Thus the multitude of choices available in our lives,

 Charles

Would you mind reiterating your past comment of how Class D (yours and perhaps others) have finally made the leap to outperform tubes (yours and others)?

I find the class D to be more transparent in my system compared to my tube amps; less coloration also due to lower distortion. At the same time I don't find them harsh, a classic sin of solid state amps in general. I can play them all day and not get tired of them.

Now let's say you are a tube amp producer. You face a variety of problems. Right now a major one is availability. If you're not going to get in trouble with the law (due to sanctions against Russia), you're probably using Chinese or JJ tubes if you're using new tubes. Another one is the industry is tending towards 4 Ohms as the default speaker impedance rather than 8; I see this as a bad thing since all amps make greater distortion into lower impedances, and with many its enough to be heard (audiophiles use 'fat' 'muddy' and other similar expressions for this). But 4 Ohms is a thing regardless of what I think.

Its now possible to build a solid state amp that is as relaxed as a good tube amp, not lacking detail or depth (and maybe more). Since brightness and harshness of solid state is what has kept tube amp producers in business for the last 60 years, and also because tube amplifier power is more expensive, how long will tubes be a viable option in audio? IMO while it will still be a while (owing largely to highly variable results designers got out of class D over the last 20 years having poisoned the well at first) tubes will continue for a while, but even chip-based class D amps that might only be $75.00 are now giving serious tube amps a run for the money!

If I were an amplifier manufacturer that had not got the class D thing figured out, right now I would be worried. The market will be shrinking for tube power products- even in the guitar world. I know a lot of cheap class D guitar amps are so much junk but they aren't all that way, and most guitarists these days rely on their effect pedals for their 'sound'. The guitar market is a lot larger than the high end audio market for tube use- they drive a lot of what is available for high end as a result. If you lose the guitar market, that will be very nearly the end of tubes.

@atmasphere

Really appreciate your insightful experience and comments.

I am thankful that you brought Class D to the market and that it has been so well received. I run Class D myself, though it is not the typical Class D amp - it is the TAD M2500. In the process of choosing an amp, I listened to Luxman, Pass, Burmester (very good), and maybe one or two others, I forget, and the TAD was the best that fell into my budget - only the Burmester 909 with matching 077 preamp was better, but at $$ multiples of the M2500 + C2000 pre. This pairing makes my TAD E-1s sing and I’m sure part of that is system/manufacturer synergy, but if Class D were not good, the system would not be sublime like it is.

I hope the more manufacturers will make high quality Class D amps, glad you’ve beat nearly all of them to the punch.

Thanks again for being the gentlemen and sharing your decades of experience with us all.