M•800 SPECIFICATIONS

Maximum Power:

175watts per channel into 8 ohms

275watts per channel into 4 ohms

400watts per channel into 2 ohms

550watts into 8 ohms bridged

800watts into 4 ohms bridged

Note: Power ratings are specified at 120VAC line voltages.

The M•800 power amplifier draws large amounts of current from the AC line with continuous sine wave testing. Accurate measurement of power requires a steady and stable AC supply. This means the line impedance must be very low to insure that the peak AC line voltage does not sag to less than 97% of its value.

If driving highly reactive loads, we recommend that the limiter circuit be engaged.

Continuous Sine Wave Average Output Power, both channels driven:

150 watts per channel into 8 ohms from 40Hz to 20kHz, with no more than 0.025 % THD

225 watts per channel into 4 ohms from 40Hz to 20kHz, with no more than 0.05 % THD

280 watts per channel into 2 ohms from 40Hz to 20kHz, with no more than 0.1 % THD

Bridged mono operation:

450 watts into 8 ohms from 40Hz to 20kHz, with no more than 0.05 % THD

560 watts into 4 ohms from 40Hz to 20kHz, with no more than 0.1 THD

Damping Factor:

> 250 from 10 to 400Hz

Input Impedance:

20kΩ balanced

Input Sensitivity:

1.23 volts (+4 dBu) for rated power into 4 ohms

Voltage Gain:

28.0 dB

Maximum Input Level:

9.75 volts (+22 dBu)

Rise Time:

< 5μs

Slew Rate:

Voltage Slew Rate

> 40V/μs

 

> 80V/μs bridged

Current Slew Rate

> 20A/μs at 2Ω

CMRR:

> 40 dB, 20Hz to 20kHz

Load Angle:

8(±jx) time independent at 8Ω

4(±jx) time dependent, T > 6 min. at 4Ω 2(1±jx) time dependent, T > 2 min. at 2Ω

Power Bandwidth:

 

Transient Recovery:

 

 

< 1μs for 20 dB overdrive @ 1kHz

20Hz to 70kHz (+0, –3 dB)

 

 

Frequency Response:

20Hz to 40kHz (+0, –1 dB) 10Hz to 70kHz (+0, –3 dB)

Distortion:

THD, SMPTE IMD, TIM (at rated power)

< 0.025% @ 8Ω < 0.05% @ 4Ω < 0.1% @ 2Ω

Signal-to-Noise Ratio:

> 104 dB below rated power into 4 ohms

Channel Separation:

> 70 dB @ 1kHz

High Frequency Overload and Latching:

No latch up at any frequency or level.

High Frequency Stability:

Unconditionally stable driving any reactive or capacitive load.

Turn On Delay:

3-4 seconds

Variable Low-Cut Filter:

10Hz (Off) to 170Hz, 2nd Order Bessel

Constant Directivity High Frequency Boost:

2kHz to 5.5kHz (+3 dB points)

6 dB/octave high-frequency shelving filter, (shelving occurs at approximately 30kHz)

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