Studio Monitors & Speakers
Radial Engineering EXTC-Stereo
Radial Engineering EXTC-Stereo, 2-Channel Stereo Interface for Guitar Effects (Stand-Alone), Frequency range: 20 - 20000 Hz, Inputs and outputs: Jack/XLR combo, Steel chassis, Incl. 15 V DC power supply
https://www.bizrate.co.uk/musicalinstrumentmonitors_speakers/radial-engineering-extc-stereo-oid15570897466.html