Pre-owned Mono Amplifier Atma-Sphere MA-1 MK3 OTL (2 units)
Regular price
€13.500,00
Average shipping time : 2 to 4 working days
Shipping is free within European Union above 99€ purchase except for specific territories and up to 50kg. Shipping costs on quote above 50kg – quote request to be send to : contact@audiosoundmusic.com. There is no return policy on pre-owned and demo equipment.
Price for 2 units
Checked by AudioSoundMusic
Color : Black
Mint conditions
Perfect working condition
6-month warranty
FEATURES
– Balanced Differential Design®
– Class-A operation
– Patented Circlotronic® direct-coupled (OTL) output stage
– Dual-mono chassis construction
– Automatic bias – no adjustment needed
– Built in VU meter for tube and output monitoring
– Easily monostrapped for greatly increased power
– Uses only one gain stage for supreme clarity of sound
– Proprietary precision components used throughout
– Low-noise “star” grounding topology
– Fully hand-wired point-to-point electronics – no circuit boards!
– Stable with all input and load conditions
– Exclusively uses Octal-Triode based vacuum tubes
– Classic open chassis construction with Wrinkletex™ finish
– Three-year general coverage warranty,
– One year warranty on output tubes
Output power
140 watts per channel into 8 Ω load
135 watts per channel into 4 Ω load
Impedance
Input Impedance: 100 KΩ single-ended, 200 KΩ balanced Output Impedance: ~2.3 Ω (power method standard measurement)
Input
2.8 V sensitivity
RCA and XLR true balanced input
Tube complement
14 x 6AS7G output tube ( per channel )
5 x 6SN7 driver tube ( per channel )
Gain
25dB (for 8 Ω)
Power Bandwidth
2Hz-200 KHz within ½ dB
Frequency response
(1 watt, open loop) 20 Hz squarewave Tilt, unmeasureable
1Hz-300KHz within 3 dB
Power supply storage
600 Joules ( per channel )
Distortion
Total Harmonic Distortion (THD) typically 0.5% at full power.
Intermodulation (IM) distortion typically under .005% at full power.
Phase shift less than 1° @ 20KHz
Output section risetime
600 V/µs
Power consumption
500 watts ( per channel )
Dimensions
18″ deep x 17″ wide x 8.5″ tall ( 46 x 43 x 22 cm)
per chassis
Weight
36 lbs. ( 16.3 kg ), per chassis, without tubes