ACOUSTIC IMAGERY ATSAH NC500 Monoblock Amplifiers with Audio Magic Super Fuses

The ATASH 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. https://www.hypex.nl/p/technology/ncore

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.

Reviews:

https://docs.wixstatic.com/ugd/c888f1_88e9dee135de4de5bd6b87436df40a2d.pdf

http://www.10audio.com/acoustic-imagery_atsah.htm

These amps run cool and are great sounding. They sound better than any Class A amp I have heard at any price.

I have the original boxes and manual.  

Bonus the amps come with two Audio Magic Super Fuses

https://www.thecableco.com/accessories/fuses/premier-bees-wax-super-fuse-6014.html

Which cost $ 350 new.

Efficiency is over 90% and with the ability to drive loads down to 2 ohms, these amplifiers are suitable for the vast majority of loudspeakers.

The input to the amplifier is a fully balanced differential input and the connector is a Neutrik® XLR female socket.

Speaker connections are via shielded binding posts which are able to accept banana plugs,spade connectors or bare wire.

ELECTRICAL

                           400 Watts into 8Ω

Output power ~ 700 Watts into 4Ω

                            550 Watts into 2Ω

THD + N, IMD* ~  0.001%

Frequency response ~ 0Hz – 50kHz +0/-3dB all loads

Gain ~ 26dB

Efficiency @ full power ~ 93%

PHYSICAL

 Mains input ~ 120V/60Hz or 230V/50Hz via IEC switched fused socket

Signal input ~ max ±15V via Neutrik® XLR socket

Loudspeaker connection ~ pole terminal binding posts

Dimensions ~ 200mm width 220mm depth 65mm high

Weight ~ 2 Kg

* 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

   IMD test.