700 W at 4 ohms 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 4 ohm 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.


SKU: e45de2a35525. Categories: , .

Additional Information


483 mm x 44.45 mm x 358 mm (19.0 in x 1.8 in x 14.1 in)


7.4 kg (16.3 lb)

Frequency Response

10 Hz – 30 kHz (1 W @ 8 Ω, ± 3 dB)

Slew rate

40 V/μs @ 8 Ω, input filter bypassed

Crosstalk separation

>70 dB @ 1 kHz

Damping factor @ 8 Ω

>5000 @ 100 Hz