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Powersoft M28Q Professional Power Amplifier

Powersoft M28Q Professional Power Amplifier

Ordered on request - Please contact us for expected delivery times

POA - Contact us for more information

4-Channels Power Amplifier for Touring and Installation

700 W at 4Ω from each of four channels with bridgeable pairs: a single M28Q is good for powering a complete little bi-amped stereo system, a 3-way mono stack of decent size, a variety of floor monitors.

All at a quality level as can be expected from Powersoft. Optimized for 4Ω loads, the M28Q is a fantastic value, practically as well as commercially.

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In use worldwide by leading touring and event sound companies, Powersoft amplifiers are preferred among the top ranking system designers, sound engineers, and contractors for providing reliable premier-grade power and headroom in the smallest possible package size.

Maximum efficiency warrants minimum current draw, heat dissipation, and power consumption, resulting in “green” products, saving the user a substantial amount of money over time.

Power supply

Advanced switch-mode power supply technology for high performance and compact size
Fixed frequency switch mode output
Patented output filter with ripple cancellation network

Protections

Fully protected circuit design with:

Ac protection: shut down power supply when AC mains voltage is outside the operating range
Clip limiter: prevents severely clipped waveforms from reaching loudspeakers, while still maintaining full peak power output
DC protection: protects against infrasonic signal at the outputs
VHF protections: protects the loudspeakers against non-audible, strong, non-musical high-frequency signals
Short circuit protection: protects the amplifier from short circuit or other stressful events for the output circuits with automatic protection reset
Long term limiter: protects the loudspeaker against steady long term RMS (non-audio) signals reducing maximum output
Thermal protection: output stages operating temperature up to 75 °C (167 °F)
Temperature controlled continuous variable speed fan, front to back airflow

Digital Signal Processing

Analog Devices ADAU 1701 DSP architecture
24 bit @ 48 kHz, 120 dB S/N AD/DA converters
Separate input/output EQ’s with numerous filters of various types up to 48 dB/oct
Peak, RMS, and frequency-dependent limiters
Delay for time alignment

General

Direct drive constant voltage, 70V Hi-Z distributed lines*
Compact size – all models only 1 RU for reduced rack cost and space
Lightweight – all models only 7.4 kg (16.3 pounds) for easier racking and shipping
Neutrik XLR balanced inputs with loop thru XLR and Speakon outputs connectors
Recessed stepped attenuators
Modular construction
Full four years warranty

GENERAL
Output power per channel
Output power per channel		700 W @ 4 Ω	360 W @ 8 Ω
Bridge mode			1400 W @ 8 Ω
Max output voltage / current
Single channel mode			85 Vpeak / 60 Apeak
Bridge mode			170 Vpeak
AC MAIN POWER
Power supply	Universal, regulated switch mode with PFC (Power Factor Correction)
Nominal power requirement			100-240 V ±10%, 50-60 Hz
Operating voltage			90 V – 264 V
Power consumption / current draw
Idle		115 V: 64 W – 0.6 A	230 V: 62 W – 0.51 A
1/8 of max output power @ 4 Ω		115 V: 580 W – 7.48 A	230 V: 580 W – 3.74 A
1/4 of max output power @ 4 Ω		115 V: 1066 W – 13.04 A	230 V: 1066 W – 6.52 A
THERMAL
Operating temperature range			0° – 45° C – 32° – 113° F
Thermal dissipation*
Idle		115 V: 212 BTU/h – 53.4 kcal/h	230 V: 212 BTU/h – 53.4 kcal/h
1/8 of max output power @ 4 Ω		115 V: 785 BTU/h – 197.8 kcal/h	230 V: 785 BTU/h – 197.8 kcal/h
1/4 of max output power @ 4 Ω		115 V: 1249 BTU/h – 314.7 kcal/h	230 V: 1249 BTU/h – 314.7 kcal/h