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Author Topic: FS: Powersoft M28Q power amplifier  (Read 938 times)

Bill Staley

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FS: Powersoft M28Q power amplifier
« on: March 29, 2020, 05:15:43 PM »

Excellent condition.

$850 local pickup in Northeast Florida
$900 shipped to Continental US

Number of channels: 4
Output power
Single channel mode:
4 Ω: 700 W
8 Ω: 360 W
Max output voltage / current: 85 Vpeak: / 60 Apeak
Bridge mode:
8 Ω: 1400 W
Max output voltage / current: 170 Vpeak
AC Main Power
Power supply: Universal, regulated switch mode
Nominal power requirement: 100-240 V ±10%, 50-60 Hz
Operating voltage: 90 V - 264 V
Power consuption**
115 V:
Idle: 64 W - 0.6 A
1/8 of max output power @ 4 Ω: 580 W - 7.48 A
1/4 of max output power @ 4 Ω: 1066 W - 13.04 A
230 V:
Idle: 64 W - 0.51 A
1/8 of max output power @ 4 Ω: 580 W - 3.74 A
1/4 of max output power @ 4 Ω: 1066 W - 6.52 A
Thermal
Operating temperature range: 0° - 45° C - 32° - 113° F
Thermal dissipation**
115 V:
Idle: 212 BTU/h - 53.4 kcal/h
1/8 of max output power @ 4 Ω: 785 BTU/h - 197.8 kcal/h
1/4 of max output power @ 4 Ω: 1249 BTU/h - 314.7 kcal/h
230 V:
Idle: 212 BTU/h - 53.4 kcal/h
1/8 of max output power @ 4 Ω: 785 BTU/h - 197.8 kcal/h
1/4 of max output power @ 4 Ω: 1249 BTU/h - 314.7 kcal/h
AUDIO
Gain: 32dB, 30dB, 28dB, 26dB, 24dB, 22dB, 20dB, 18dB, 14dB, 4dB, -infinity, user selectable
Input sensitivity: 1.94 V / 8 dBu
Max input level: 6 V / 17.8 dBu
Frequency response: 20 Hz - 20 kHz (±0.5 dB) @ 1 W, 8 Ω
S/N ratio: > 110 dB (20 Hz - 20 kHz, A weighted)
Crosstalk separation: > 70 dB @ 1kHz
THD+N: < 0.05% @ 1/2 full power
IMD: < 0.02%
Input impedance: 10 kΩ balanced
Slew rate: 50 V/mus @ 8Ω, input filter bypassed
Damping factor: > 5000 @ 100 Hz
DSP
DSP architecture: Analog Devices ADAU 1701 DSP
AD Converter: Cirrus Logic CS 5381, 2 channel, 24 bit @ 48 kHz, 120 dB S/N
DA Converter: Cirrus Logic CS 4398, 2 channel, 24 bit @ 48 kHz, 120 dB S/N
Internal precision: Fixed point
Firmware: Network upgradable firmware
Latency: 0.644 ms fixed latency architecture
Input equalizer: up to 5 biquad IIR filters (PEQ, shelving, band pass, band stop, all pass)
Output equalizer: up to 12 fully parametric per channel
Crossover: Butterworth, Linkwitz-Riley, Bessel: 6 dB/oct to 48 dB/oct
Delay: 340 ms input delay plus 10 ms per output
Limiters: Peak limiter, RMS limiter, frequency dependent RMS limiter
Damping control: < 120 Hz, range ±2 Ω
Front panel
Indicators and Controllers: 2 x LED - Status
2 x LED - Over-temperature protection
4 x LED bar - Signal level and over-temperature protection
4 x Knob - Level attenuator (stepped)
1 x Power switch -
Connectors
AC main: 1 x IEC C14 connector - 15 A max (region-specific power cord provided)
Audio signal input: 4 x XLR - Signal input
Auxiliary voltage: 1 x 2 pin Phoenix MC 1.5/2-ST-3.81 - External voltage connector (DSP version only)
Loudspeakers: 4 x speakON - Neutrik NL4MD
Network/data: 1 x Rj45 socket - RS485 data connection (non-DSP version)
Rear panel
Indicators and Controllers: 1 x Push-button - Link channel pair
Construction
Dimensions (L x H x W): 483 mm x 44.45 mm x 358 mm (19.0 in x 1.8 in x 14.1 in)
Weight: 7.4 kg (16.3 lb)
« Last Edit: May 06, 2020, 09:50:16 AM by Bill Staley »
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FS: Powersoft M28Q power amplifier
« on: March 29, 2020, 05:15:43 PM »


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