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Classe CT-M300

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RRP: $9,999.00
Our Price: $9,949.00

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Classe Monorail Amplifier, 600wRms x 1 @ 4Ohms

The Classe Amplifier CT-M300 comes with their own adjustable rack rails and a separate faceplate designed to conceal all mounting hardware along the sides of the rack. The rails adapt easily to common rack depths while providing front to back support of the chassis. Hidden inside, our unique Intelligent Cooling Tunnel, or ICTunnel (pronounced Icy Tunnel) architecture and related circuitry quietly controls the amplifier temperature, ensuring optimum performance and reliability in enclosed, poorly ventilated environments.
Conventional high-end amplifiers use heatsinks with high thermal mass that rely on convection to cool the active circuits.

They are slow to heat up and slow to cool down. Eventually they heat up their environment and as the air around them gets hotter, they become part of the problem. For this reason, high-powered amps and racks or cabinets dont easily mix.

Conventional heatsinks are simply shaped pieces of metal, relying on placement and ambient air to extract heat from the amplifier. The ICTunnel is more sophisticated, acting like the human hypothalamus regulating body temperature. The ICTunnel of the Classe Amplifier CT-M300 utilises an aluminum bonded-fin heatsink, of the kind used in high powered medical, laser and test equipment. It exploits the principle of low thermal mass, so it heats quickly but can also be cooled quickly. Inside its relatively small size are fins providing nearly 31 square feet of surface area. The key to its operation is how the fins are spacedas close as possible to each other to maximize the surface area inside the tunnel, but not so close as to heat each other.

The ICTunnel utilizes a noiseless fan along with pressure and temperature sensors to maintain the amplifiers target temperature.

The Classe Amplifier CT-M300 of the CT series has everything you would expect from the worlds best amplifiers. They are designed for lifetime reliability. The Classe Amplifier CT-M300 also has the power to effortlessly control the lowest impedances imaginable. They have the finesse to resolve the infinitely minute details that are the DNA of great sound. But CT amplifiers add a new dimension. For the first time the worlds best amplifiers can go right where you need them in the home theater rack.

Frequency response
1Hz 80kHz, -3dB

Output power
300W rms into 8OHMS
(24.8 dBW)
600W rms into 4OHMS
(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 8OHMS

Input Impedance
50k OHMS
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 8OHMS
balanced / single ended
>90dB below fundamental into 4OHMS
balanced / single ended

Signal to Noise Ratio
-116dB at peak output into 8OHMS
Measurement Bandwidth: 22kHz

Output impedance
0.015OHMS@ 1kHz

Standby power consumption
3W @ 120V; 5W @ 230V

Rated power consumption
420W @ 1/8th power into 8

Width (including faceplate)

Width (excluding faceplate)

Depth (excluding connectors)


Gross weight

Net weight
76lbs (34.5kg)
Mains voltage
Specified on rear panel
All tests un-weighted and 500kHz measurement bandwidth (except SNR).

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