CAUTION
Prolonged exposure to sound pressure levels in excess of 100 dB can cause permanent
hearing loss. Diamond Audio D9 amplifiers produce enough power to make most speaker
systems exceed that level. Please exercise restraint and protection during their operation
in order to preserve your ability to enjoy their fidelity for years to come.
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A FOREWORD ABOUT D9 & TDX TECHNOLOGY
™
©2005 Diamond Audio Technology. All Rights Reserved
©2005 Diamond Audio Technology. All Rights Reserved
The team at Diamond Audio never ceases to amaze me with their constant desire to
develop and engineer cutting edge audio. With more than three years in research and
development, I can truthfully say we have created products that I believe have no equal.
I am extremely proud to head a company of audio fanatics that insist you listen as the
artist intended.
Thanks for your support,
RF
CEO etc
DAT
TDX TECHNOLOGY
™
T
hermal-
D
yne e
X
treme™, a fundamentally different solution. The design concept of
TDX Technology™ is to eliminate the most damaging factor to audio equipment and signal, Heat.
Diamond Audio engineers decided to start with a fresh sheet of paper and build all new products
that addressed all of the thermal problems and shortcomings of conventional designs while
significantly raising the existing level of performance.
The TDX™ amplifier technology starts with the massive extruded aluminum heat sink
that is designed to draw heat away from the power supply and output devices and dissipate it
quickly. This heat sink meets all the thermal requirements demanded in an elegant fashion,
combining technology and good looks.
Extruded into this heat sink are massive twin cooling fin banks with six cooing ducts
that act as intake and exhaust for the fan driven Stealth Dynamic Cooling System. All six ducts
are located on the end panels of the amplifier. Air is drawn into the system through the center
intake ducts, through the fan, across the heat sink fin banks, and out through the exhaust vents.
The fan is stealth mounted internally to eliminate any fan related noise or disruption.
At the center of this thermal protection system is the patent pending TDX™ circuitry
that controls all aspects of operation. This circuitry completely eliminates amplifier overheating
and shut down problems. This is achieved through a secondary, optically isolated power supply
controller. Under demanding conditions (i.e. high ambient temperatures, high power, and low load
impedance), the TDX™ circuitry:
Senses the rising temperature.
Enables the cooling fan.
Adjusts the power supply current to a sustainable level.
And adjusts the cooling fan speed.
Once the temperature has been reduced, the power supply current is increased and the
fan is shut down. This operation is completely transparent to the user and the amplifier output is
not wavered while TDX™ is engaged. This circuitry also incorporates redundant thermal sensing
for fail-safe operation at all times.
The D9 amplifier with TDX Technology™ truly sets a new benchmark in mobile audio
performance. With its extremely low distortion and noise performance, complete protection
circuitry, and high power, this amplifier truly has no equal.
