Atma-SphereMA-2 Mk 3.3usedAtma-Sphere MA-2 Mk 3.3Very rare Champagne finish. These have just been upgraded to the new top 3.3 and have all new tubes. There are dings to the face plate I have taken close up pictures of. Very open, clean, and ...17850.00

Atma-Sphere MA-2 Mk 3.3 [Expired]


no longer for sale

Very rare Champagne finish. These have just been upgraded to the new top  3.3 and have all new tubes. There are dings to the face plate I have taken close up  pictures of.   Very open, clean, and effortless sound with zero grain or mechanical character.  After hearing these, it flaunts how other amps can have a strong character.  System matching is of course still the main factor for any audio equipment to jump from good to WOW.
PRICE INCLUDES 4 SHUNYATA POWER CABLES

Output power

220 watts per channel into a 4, 8, or 16 Ω load before clipping

Impedance

Input Impedance: 100 KΩ single-ended, 200 KΩ balanced - selectable to 600 Ω 
Output Impedance: ~1.75 Ω ( open loop ) 

Input

Selectable up to 600 Ω 
2.8 V sensitivity 
RCA and XLR true balanced input 

Tube complement

( per channel ) 20 x 6AS7G output tube 
6 x 6SN7 driver tube 

Gain

26dB ( for 8 Ω )

Power Bandwidth

2Hz-150KHz within 1/2 dB

Frequency response

( 1 watt, open loop ) 20 Hz squarewave Tilt; unmeasureable 
1Hz-200KHz within 3 dB

Distortion

Total Harmonic Distortion ( THD ) typically 0.4% at full power 
Intermodulation ( IM ) distortion typically under .04% at full power 
Phase shift less than 1 degree @ 20KHz 

Output section risetime

600 V/µs

Feedback

2 dB

Power consumption

800 watts/channel

Power Supply Current

80 Amps/channel

Power Supply storage

( per channel ) 1200 Joules in output section, 100 Joules in Driver supply

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