4-Channel Power Amplifier for Touring and Installation (Ex-Demo Unit)
- 360 Watts per Channel @ 8 Ohms
- 700 Watts per Channel @ 4 Ohms
Overview
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.
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.
Features
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 outputThermal protection: output stages operating temperature up to 75 °C (167 °F)Temperature controlled continuous variable speed fan, front to back airflow
