ATSAH 1200 XS MONO
The power amplifier is a Class D design and is based on NCore® technology from Hypex.
NCore® is the name given to the first significant step up in power amplifier performance in a decade.
Building on the strong heritage of the UcD design of Class D amplifiers, NCore® takes the things UcD
does well and does them ten times better.
Coupled with a dedicated switch mode power supply made specifically to work with the Class D design,
this amplifier not only nudges at the performance of the best linear amplifiers, but surpasses them in
every aspect of sound quality.
Efficiency is over 90% and under normal operating conditions they radiate only small amounts of heat,
thus negating the need for large external heatsinks.
The input to the amplifier is a fully balanced differential input and the connector is a
Neutrik® XLR female socket.
Speaker connections are via WBT nextgen™ pole terminal 0703 binding posts and there are two
pairs to facilitate bi-wiring.
400 Watts into 8Ω
Output power ~ 700 Watts into 4Ω
1200 Watts into 2Ω
THD at full output ~ 1%
THD + N, IMD* ~ 0.004%
Frequency response ~ 0Hz – 50kHz +0/-3dB all loads
Gain ~ 26dB
Efficiency @ full power ~ 93%
Mains input ~ 110V/60Hz via IEC switched fused socket
Signal input ~ max ±15V via Neutrik® XLR socket
Loudspeaker connection ~ nextgen™ WBT 0703 binding posts
Dimensions ~ 220mm width 300mm depth 75mm high
Weight ~ 6Kg
* At higher audio frequencies there are not enough harmonics left in the audio band to make
a meaningful THD measurement.
High frequency distortion is therefore determined using a 18.5kHz + 19.5kHz 1:1 two-tone