5
Specifications
Maximum Power, mid band:
175 watts per channel into 8
Ω
275 watts per channel into 4
Ω
400 watts per channel into 2
Ω
550 watts into 8
Ω
bridged
800 watts into 4
Ω
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
Ω
from 40Hz to 20kHz, with no more
than 0.025 % THD
225 watts per channel into 4
Ω
from 40Hz to 20kHz, with no more
than 0.05 % THD
280 watts per channel into 2
Ω
from 40Hz to 20kHz, with no more
than 0.1 % THD
Bridged mono operation:
450 watts into 8
Ω
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
Power Bandwidth:
20Hz to 70kHz (+0, –3 dB)
Frequency Response:
20Hz to 40kHz (+0, –1 dB)
10Hz to 70kHz (+0, –3 dB)
Distortion:
SMPTE IMD, TIM (250mW to rated
power)
< 0.025% @
8 Ω
< 0.05% @ 4
Ω
< 0.15% @ 2
Ω
Signal-to-Noise Ratio:
> 104 dB below rated power, 4
Ω
Channel Separation:
> 70 dB @ 1kHz
Damping Factor:
> 250 @ 400Hz
Input Impedance:
20k
Ω
balanced bridging
Input Sensitivity:
1.23 volts (+4 dBu) for rated power
into 4
Ω
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 2
Ω
CMRR:
> 40 dB, 20Hz to 20kHz
Load Angle:
8(±jx) time independent at 8
Ω
4(±jx) time dependent, T > 6 min.
at 4
Ω
2(1±jx) time dependent, T > 2 min.
at 2
Ω
Transient Recovery:
< 1µs for 20 dB overdrive @ 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)
Limiter Section:
Complementary Positive and
Negative Peak Detecting
Indicators:
5 meter LEDs per channel
–20, –9, –6, –3, OL (Overload)
TEMP STATUS
NORMAL/HOT LEDs
continued.