Among devices, oriented on use with Apple iPad, there is an USB audio interfaces Focusrite iTrack Solo with support of 96 kHz work mode and 105 dB dynamic range of digital to analogue and analogue to digital conversions. On frontal panel of device there are : microphone/linear XLR input with phantom power +48 V switch and gain control knob; TRS 1/4″ jack instrumental Hi-Z input with signal gain control; output volume control, USB connection activity indicator, Direct Monitor function switch and TRS 1/4″ jack monitor headphones output. On back panel of Focusrite iTrack Solo there is ability to find : Kensington Lock slot, USB 2.0 port for connection to computer and powering, Device Link port for connection to Apple iPad and left and right linear RCA outputs.
Manufacturer does not tell with which precision device works, but, the most probably, it supports 24 bits per sample. Focusrite iTrack Solo uses only internal timings and does not synchronize with external devices; dynamic range of its digital modules is 114 dB, with accounting of analogue part it goes down to 105 dB; inputs isolation and outputs isolation are 90 dB, isolation of inputs from outputs is an 85 dB. Microphone input of audio interface works with THD+N value, equal to 0.002 % and noise level -120 dB; for instrumental inputs the same parameters are equal, accordingly, to : 0.003 % and -87 dB; THD+N of analogue outputs is a 0.001 %, they can work in balanced mode. Focusrite iTrack Solo works in Mac OS X without additional drivers, in Windows Vista, 7, 8, 8.1 and 10 it requires them; in these OSes it works with support of Core Audio and ASIO 2.0 interfaces, accordingly, for interaction with modern DAWs : Avid Pro Tools, Ableton Live, Steinberg Cubase, FL Studio, Cackewalk Sonar, REAPER and others.
With Focusrite iTrack Solo DAW Ableton Live Lite 9 and VST/AU plugins package Focusrite Scarlett are supplied; its body is made from metal for better durability and electro-magnetic interference amount reduction. Device’s body sizes are 150 ( width ) x 100 ( depth ) x 45 ( height ) mm and mass is 500 g; package with Focusrite iTrack Solo contains : 1.2 m USB cable, 1.2 m Device Link cable for connection to 30 pins Apple iPad port, USB power adapter ( depending on country ), warranty card, user’s guide and cards for software downloading. There are 2 modifications of device : Focusrite iTrack Solo Lightning, compatible with Apple iPad mini, iPad mini with Retina display, iPad 4th generation and iPad Air; as well as usual version Focusrite iTrack Solo, compatible Apple iPad 1st, 2nd and 3rd generations.
For its compact sizes device is great : it has wide enough dynamic range, good channels isolation. good THD+N and noise level values of outputs and inputs, enough amount of connectors for mobile use, as well as good audio programs bundled with it. Among close to Focusrite iTrack Solo USB audio interfaces there are also good devices of Steinberg, Behringer, Focusrite, Roland, ESI, M-Audio, Alesis and other companies production with close characteristics; there is ability to choose from them one, that fits the most to intended use.
