Genesis Reference Amplifier 30
th
Anniversary Monoblock Owners Manual
2
The Story Behind the GRAmp
When I originally designed the Genesis Reference Amplifier, that was
all that it was supposed to be: a laboratory reference to help in my
loudspeaker design projects. However, once a dealer played with it at
a show, there was no going back, and I turned it into a commercial
product.
In the design laboratory, I was sometimes unable to figure out if the
bottleneck to better transparency, detail retrieval, and macro- and
micro-dynamics was in the amplifier, or the crossover I was working
on at the moment. Also, I kept blowing up my reference amplifiers at
the time as I was soldering on components in the crossovers as
music was playing.
Since we already used the Hypex Class D amplifier module in our
servo-amplifiers, I simply built two into a stereo amplifier. Although it
was surprisingly good, it was far from satisfactory. It took some
thinking, but I figured that it was in the power supply. Once the new
power supply was designed (see the technical section), I loved
listening to music through the new amplifier even more than through
the Genesis M60 tube monoblocks.
Soon, reviewers started to say that Class D finally arrived for the
audiophile market (even though many confused Class D as “digital
amplifier”). Class D has reached maturity with the Genesis Reference
Amplifier, bringing musicality and eliminating the myth that it is only
good for bass. This was 2007 to 2008!
Over the years, I’ve continuously improved the design as it is
something that I live with every day. It married the control of mega-
power solid-state amplifiers with sweet tube-like tonal textures and
zero listener fatigue. This is the amplifier that I can spend 8 hours a
day in the listening lab designing a loudspeaker, and take home and
spend another 4 hours enjoying music with my family.
The 30
th
Anniversary Monoblocks are the ultimate expression of that
amplifier. Unflappably powerful, yet elegant and delicate. Absolutely
tailored especially to drive a pair of Genesis loudspeakers!
Thank you very much for buying my latest design.
Gary L. Koh
CEO and Chief Designer
Please write the serial number and
purchase details of your Genesis
Reference Amplifier here for future
reference.
Serial Nos.: __________________
Bought at: ___________________
____________________________
Date: _______________________
Address: ____________________
_________________________
Tel:
________________________
