The 18i20 uses Focusrite's Scarlett MixControl software, so although input gains are hardware-controlled, the monitor, Dim and Mute controls can be accessed via software, too. Finally, the 18i20 comes with Focusrite's Scarlett Plugin Suite (EQ, Compressor, Reverb and Gate), 1GB of Loopmasters samples, Ableton Live Lite, and Novation's Bass. View and Download Focusrite Scarlett 18i20 user manual online. Scarlett 18i20 accessories pdf manual download. Focusrite Scarlett 2i4 2nd Gen Audio/Midi Interface - Red. Condition is Used. Dispatched with Royal Mail 1st Class. ... Focusrite Scarlett 18i20 2nd Generation USB Audio Interface. £188.00 1 bid + £68.20 P&P . Picture Information. Opens image gallery.