Musical Instrument Amplifiers
the t.amp Quadro 500 DSP
the t.amp Quadro 500 DSP, 4-Channel Digital Power Amplifier, Class D, Power: 4x 500 W at 4 Ohm, 4x 250 W at 8 Ohm, Built-in DSP, 4 XLR inputs, 4 Speaker twist outputs, Format: 19" / 1 U, Dimensions: 483 x 460 x 44 mm, Weight: 8.0 kg
https://www.bizrate.co.uk/musicalinstrumentamplifiers/the-t-amp-quadro-500-dsp-oid8785326966.html