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CLASS D MONO AMPS buy ATMASPHERE MUSIC SYSTEMS

CLASS D AMPLIFIER TECHNOLOGY HAS FINALLY ARRIVED TO OUTPERFORM ALL OTHER TOPOLOGIES 

The Amplifier is the New Class D Mono Amps using GaN Fets in a unique Patented
Circlotronic output stage…Design by Ralph Karsten of ATMASPHERE MUSIC SYSTEMS 

Rated at 100 watts 8 ohms and 200 watts 4 ohms with low distortion across the full audio bandwidth with excellent noise characteristics 

I have been using ATMASPHERE MUSIC SYSTEMS MA-1 3.0 with all factory upgrades along with NOS 6NS7 Input Tubes for many years 

The New ATMASPHERE MUSIC SYSTEMS CLASS D has outperformed my MA-1 3.0 in all areas…the resolution and transparency are simply an Amazing Accomplishment

Also I sold my MP-3 mk 3.0 and purchased the New MP-3 mk3.3

In my Audio opinion I believe the ATMASPHERE MUSIC SYSTEMS CLASS D MONO AMPS used with the MP-3 mk3.3 will offer one of the most transparent sounding electronics combinations to date…only using the MP-1 mk3.3 will offer more performance 

I have used other High End Amplifiers in my system and the ATMASPHERE MUSIC SYSTEMS CLASS D MONO AMPS outperformed all of them as well

Music Lover…Audiophile…Retired Audio/Video Engineer over 45 years 

Thanks for Reading 

TubeGuy 45

tubeguy45
tyray
562 posts
 

This cat’s been out of the bag for a while. I think there’s been talk of it here for about a year at least.

Yep, Ralph himself has causally mentioned he was working on such.

100 watts is just not enough for some speaker systems. I would go at least 300/600/1000 watts

No need to if the amp has 4 ohm taps. And even it didn’t, if the speaker is rated at 4 ohms, you gotta a banger. Not to mention if you have efficient speakers 100 watts is plenty.

About class D amplifier current? I need to study up on that...How does class D amplifier current work? Is it dissimilar to class A and AB? Anyone?

ricevs
1,459 posts
 

200 watts into 4 will not drive Apogee speakers, Magnepans to great volume, various Wilson, etc. speakers.  There are no ohm taps on a transistor amp.  The output impedance on Ralphs amp is low......but the voltage/current it limited.  Works the same on class d and class A or A/B.  Purifi has a new module about to be released that has 40 amps of current instead of the 26 for its current model.  This will make it double from 250 watts at 8 ohm to 500 at 4 ohm and even puts out 900 watts into 2 ohms......now that will drive more speakers, for sure.  I am sure Ralph will do something similar.  Myself.....100 watts is plenty.  But I have easy to drive speakers.

tubeguy45 OP
14 posts
 

I agree high power is necessary for low sensitivity loudspeakers speakers, I built the GR RESEARCH NX OTICA with Servo Woofers…which are 93db @ 8ohms…16hz-22khz in an open baffles design…I have servo set to high damping @ 20hz

Paired with the GR Research NX Otica and Servo Woofers…

Atmasphere Class D mono amps with 100 watts @ 8ohms are simply incredibly transparent and the most open soundstage I have ever had in all my audio journeys 

BTW I am using the Pass Labs XVR-1 that I upgraded with Polystyrene Capacitors

Thanks for Reading

 

arro222
142 posts
 

In comparison to what or perhaps I should say...who?.

"Neutral", even without a demarcation from music’s fundamentals of timing, tonality and dynamics, for some, would be "less".

I’ve heard the otl amps and one of my favorite topologies. How does one achieve "more neutral" or are you not saying that?

 

dill
2,443 posts
 

Prototypes 

May be an image of indoor

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