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Atma-Sphere Tube Amplifier Forum

Learn from Ralph Karsten the Atma-Sphere founder/designer and discuss with fellow owners.

STICKY THREADS

Atmasphere
  • Sticky
What an OTL is, and why you should care
Replies
90
Views
32K
Mrmb
M

NORMAL THREADS

jeffreybehr
Oh-m'-god--bought a pair of MA-1/3.1s thru USAudiomart.
Replies
31
Views
8K
Phantom-Audio
Phantom-Audio
B
Atma-Sphere MP-3 - giving some thought to whether to buy one vs alternatives...
Replies
15
Views
2K
Atmasphere
Atmasphere
N
About to buy MA-1 monos- how long do the tubes last and how easy are replacements to source?
Replies
70
Views
4K
Nuforce
N
Phantom-Audio
Atma-Sphere Nirvana OTL Monoblock Amplifiers
Replies
15
Views
1K
Phantom-Audio
Phantom-Audio
N
Anyone had success using 6080 tubes in atma-sphere amps?
Replies
6
Views
625
microstrip
microstrip
Phantom-Audio
Atma-Sphere MP-1 in Rare Gold/Silver Chassis
Replies
5
Views
535
tima
tima
Phantom-Audio
Field Coil Speakers @ 16 Ohms for OTL
Replies
38
Views
6K
jw5115
J
Ron Resnick
Atma-Sphere MA-2 Amplifier
Replies
24
Views
9K
Atmasphere
Atmasphere
A
Atma-Sphere MP-1 preamplifier as tape head preamp: anyone with experience ?
Replies
7
Views
1K
Atmasphere
Atmasphere
R
What Cables Are You Using With Atma-Sphere Gear & Why?
Replies
27
Views
15K
DetroitVinylRob
DetroitVinylRob
A
.2 mv cartridge ok with MP-1 V3.1?
Replies
6
Views
1K
microstrip
microstrip
jeffreybehr
Improved some parts in my Atma-Sphere M-60/3.3 poweramps
Replies
19
Views
6K
El34bluglo
E
F
Atma-sphere MA-1 MK 3.3 - Fuse Replacement Vs. Upgrading Power Cord
Replies
2
Views
4K
Addicted to hifi
Addicted to hifi
Phantom-Audio
Atma-Sphere Nirvana Amplifiers
Replies
17
Views
3K
Atmasphere
Atmasphere
L
What is it about direct heated triodes?
Replies
13
Views
3K
Phantom-Audio
Phantom-Audio
R
Differences Between Chinese and Russia 6AS7 Tubes
Replies
15
Views
16K
Phantom-Audio
Phantom-Audio
C
Anyone hear the MA-3?
Replies
17
Views
16K
Brian Walsh
Brian Walsh
olivier
Atmas M-60 with ZU Druid VI
Replies
31
Views
4K
the sound of Tao
the sound of Tao
O
Atma Model M-60 MkII - The missing 407
Replies
0
Views
1K
Olindian
O
M
MA-1 Lumen Reduction for the Red/Yellow Lamps
Replies
7
Views
2K
Atmasphere
Atmasphere
jeffreybehr
And now it's the MA-1s in the system and with fewer output tubes
Replies
2
Views
2K
jeffreybehr
jeffreybehr
jeffreybehr
Reinstalled M-60s in the system, driving Serenity Super-7s
Replies
1
Views
2K
jeffreybehr
jeffreybehr
R
6080 Tubes or Alternate to the 6AS7 Tubes
Replies
1
Views
6K
jeffreybehr
jeffreybehr
Brian Walsh
Atma-Sphere MP-1 Mk 3.3
Replies
12
Views
15K
ferrox
F
Atmasphere
New preamp called the Ultraviolet!
Replies
16
Views
20K
Brian Walsh
Brian Walsh
Gregadd
New Atma-Sphere amp
Replies
7
Views
9K
Atmasphere
Atmasphere
Gregadd
Atma-Sphere Cutting Lathe
Replies
32
Views
23K
MylesBAstor
MylesBAstor
Gregadd
Last of the cowboys
Replies
20
Views
16K
Brian Walsh
Brian Walsh
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  • What’s Best Forum is THE forum for high end audio, product reviews, advice and sharing experiences on the best of everything else. This is THE place where audiophiles and audio companies discuss vintage, contemporary and new audio products, music servers, music streamers, computer audio, digital-to-analog converters, turntables, phono stages, cartridges, reel-to-reel tape machines, speakers, headphones and tube and solid-state amplification. Founded in 2010 What’s Best Forum invites intelligent and courteous people of all interests and backgrounds to describe and discuss the best of everything. From beginners to life-long hobbyists to industry professionals, we enjoy learning about new things and meeting new people, and participating in spirited debates.

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