Recipient of The Absolute Sound's prestigious "Golden Ear Award" in 2000, the MA-1 enjoys an enviable reputation. Now the Mk. 3.3 series builds on proven technology. An improved output section and enhanced driver circuit contribute to superior low-level detail, smoother sound, wider bandwidth and AC power immunity. The rugged, non-magnetic chassis features classic looks with superior layout. Setup of the amplifier is simple with it's automatic biasing system. The controls and switches are ergonomic without sacrificing performance.
The MA-1 is extraordinary in every way. Not only is normal operation easy on the vacuum tubes, the effect of a tube failure on the unit is entirely inconsequential. Despite its extreme performance, the MA-1 is known for remarkable ease of setup, ease of operation, day-to-day consistency and of course extreme musicality.
Featuring our new custom wire, V-Cap Teflon coupling caps, custom resistors, and all the other extras for which we are known, the MA-1 shines as an example of why our amplifiers are the best amplifiers worldwide, regardless of cost.
140 watts per channel into 8 Ω load
135 watts per channel into 4 Ω load
Input Impedance: 100 KΩ single-ended, 200 KΩ balanced
Output Impedance: ~2.3 Ω (power method standard measurement)
2.8 V sensitivity
RCA and XLR true balanced input
( per channel ) 14 x 6AS7G output tube
5 x 6SN7 driver tube
25 dB ( for 8 Ω )
2 Hz-200 KHz within ½ dB
( 1 watt, open loop ) 20 Hz squarewave Tilt; unmeasureable
1Hz-300KHz within 3 dB
600 V/µs
( per chassis ) 18" deep x 17" wide x 8.5" tall ( 46 x 43 x 22 cm )
( per chassis, without tubes ) 36 lbs. ( 16.3 kg )
by Atma Sphere
Recipient of The Absolute Sound's prestigious "Golden Ear Award" in 2000, the MA-1 enjoys an enviable reputation. Now the Mk. 3.3 series builds on proven technology. An improved output section and enhanced driver circuit contribute to superior low-level detail, smoother sound, wider bandwidth and AC power immunity. The rugged, non-magnetic chassis features classic looks with superior layout. Setup of the amplifier is simple with it's automatic biasing system. The controls and switches are ergonomic without sacrificing performance.
The MA-1 is extraordinary in every way. Not only is normal operation easy on the vacuum tubes, the effect of a tube failure on the unit is entirely inconsequential. Despite its extreme performance, the MA-1 is known for remarkable ease of setup, ease of operation, day-to-day consistency and of course extreme musicality.
Featuring our new custom wire, V-Cap Teflon coupling caps, custom resistors, and all the other extras for which we are known, the MA-1 shines as an example of why our amplifiers are the best amplifiers worldwide, regardless of cost.
140 watts per channel into 8 Ω load
135 watts per channel into 4 Ω load
Input Impedance: 100 KΩ single-ended, 200 KΩ balanced
Output Impedance: ~2.3 Ω (power method standard measurement)
2.8 V sensitivity
RCA and XLR true balanced input
( per channel ) 14 x 6AS7G output tube
5 x 6SN7 driver tube
25 dB ( for 8 Ω )
2 Hz-200 KHz within ½ dB
( 1 watt, open loop ) 20 Hz squarewave Tilt; unmeasureable
1Hz-300KHz within 3 dB
600 V/µs
( per chassis ) 18" deep x 17" wide x 8.5" tall ( 46 x 43 x 22 cm )
( per chassis, without tubes ) 36 lbs. ( 16.3 kg )
