Classe Audio CA-M300 User manual

CA-M300
300W MONAURAL AMPLIFIER
DELTA SERIES
CA-M300
300W MONAURAL AMPLIFIER
Our newest Delta series amplifiers embody all that Classé represents:
innovation, technological achievement, consummate craftsmanship,
and iconic design. But they are not just the latest in the distinguished
line of Classé amplifiers to be launched since 1980. They are new,
revolutionary and unique.
Performance first
The original Delta series amplifiers won more than critical acclaim.
Elite audio professionals use them to master music and movies that
the whole world has enjoyed. Our newest amplifiers are even better.
Objectively, pure technical measurements prove they deliver our highest
performance ever. Subjectively, they simply blow audiences away.
The Classé design team has created the ultimate environment to
amplify an audio signal. The entire amplification process occurs on
a single board, creating the most direct and transparent signal path
conceivable. Our uniquely miniaturized driver stage is virtually noise
free, so every nuance of the original signal reaches the output stage.
Here, vast quantities of clean power are controlled with absolute
precision. Suddenly, the world’s finest speakers sound even better.
Performance
fast
There is a relationship between temperature and performance but
it is widely misunderstood. Audiophiles say that optimal performance
is obtained when an amplifier is “warmed up,” but what does this
actually mean? When is it warm enough and when is it too warm?
The exposed heatsink fins found on conventional amplifiers are
passive. They can’t help circuits reach their ideal temperature or keep
them there throughout a listening session. They run at a temperature
wholly defined by their environment and how loud they are playing.
This can be far from ideal.
Heat management in Classé’s new Delta series amplifiers is provided
by the ICTunnel™ (pronounced Icy Tunnel), a sensor- and microproces-
sor-controlled technology inspired by the heatsinks found in high-power
laser and medical equipment. Mounted inside the unit, the ICTunnel™
actively regulates the amplifier temperature to ensure both optimum
performance and reliability.
From room temperature, the amplifiers warm up fast. They reach their
ideal temperature in less than fifteen minutes and remain there regard-
less of how hard they are driven. No conventional heatsink can do this.
In a Class by itself
Ground-breaking performance, prodigious power, sophisticated control
and rock-steady reliability—Classé’s new Delta series is a giant leap in
amplifier design. Thanks to exclusive ICTunnel™ and audio technologies,
only Classé amplifiers can consistently deliver top performance and
reliability in every installation.

DELTA SERIES
CA-M300
300W MONAURAL AMPLIFIER
USA & Canada • Classé Audio Inc.
5070 François Cusson • Lachine • Quèbec • Canada • H8T 1B3
Tel [phone] • Fax [phone]
www.classeaudio.com • email: [e-mail]
Prices and specifications subject to change.
We are not responsible for typographical errors.
Printed in Canada on recycled stock.
Frequency response 1 Hz – 100 kHz, -3dB
Output power 300W rms into 8Ω (24.8 dBW)
600W rms into 4Ω (24.8 dBW)
Harmonic Distortion <0.002% at 1 kHz balanced
<0.004% at 1 kHz single ended
Peak Output Voltage 150V peak to peak, 53V rms no load
136V peak to peak, 48V rms into 8Ω
Input Impedance 50kΩ balanced / single ended
Voltage gain 29dB balanced / single ended
Input level at clipping 1.88V rms balanced / single ended
Intermodulation Distortion >90dB below fundamental into 8Ω balanced / single ended
>90dB below fundamental into 4Ω balanced / single ended
Signal to Noise Ratio -116dB at peak output into 8Ω
Measurement Bandwidth: 22 kHz
Output impedance 0.015Ω @ 1 kHz
Standby power consumption < 1W
Rated power consumption 420W @ 1/8th power into 8Ω
Width 17.5” (444mm)
Depth (excluding connectors) 17.52” (445mm)
Height 8.78” (223mm)
Gross weight 87 lb (39.5 kg)
Net weight 75 lb (34.0 kg)
Mains voltage Specified on rear panel
All tests un-weighted and 500kHz measurement bandwidth (except SNR).