User Manual

11
Typical consumer (hi-fi) amplifiers and small powered monitors will have unbalanced inputs,
either on phono (RCA) sockets, or via a 3.5 mm 3-pole jack plug intended for direct connection to a
computer. In either case, use a suitable connecting cable with phono plugs (RCA jacks) at one end.
Hi-fi amplifiers and powered monitors will have their own volume controls; use these to adjust the
monitoring volume.
Professional power amplifiers will generally have balanced inputs (either on 3-pin XLR or 3-pole
(TRS) ¼” (6.35 mm) jack sockets); we highly recommend using balanced (twin-and-screen) cables
to connect these to the ¼” jack outputs of the Scarlett 2i4. If you use the balanced outputs, you can
adjust the monitoring volume from the Scarlett 2i4’s front panel.
NOTE: You run the risk of creating an audio feedback loop if loudspeakers are active at the same time
as a microphone! We recommend that you always turn off (or turn down) monitoring loudspeakers
while recording, and use headphones when overdubbing.
Connecting active speakers
Connecting passive speakers