Focusrite Scarlett 4i4 3rd Gen

4 In/4 Out Desktop USB Audio Interface with 2 Mic Preamps
Studio-quality sound for all your instruments.
Sitting on the desks of more musicians and producers than any other, the Scarlett range of audio interfaces means studio-quality sound for all your instruments – and 4i4 is the interface of more. Capture more of your ever-expanding setup with more inputs, more outputs and more connectivity.
 Four balanced line inputs, for connecting synths or other line-level audio, and four balanced outputs, for monitoring and effects sends
 Two of the best performing Scarlett mic preamps the range has ever heard – now with Air – for miking up guitars or recording vocals
 Two high headroom instrument inputs, for plugging your guitar or bass straight in
 Loopback, for grabbing a stereo feed of any combination of hardware inputs and software playback, no cables needed, for simple sampling, streaming or podcasting
EXTENDED PLAY
Plug in and produce; all your instruments, all the time. With two 3rd Generation preamps, four line-ins and four balanced outs – for synths, drum machines or looping hardware effects – our most connected bus-powered interface records wherever your instruments are. Spend less time plugging in and more time playing.
Specifications in detail 
Supported Sample Rates
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
Microphone Inputs
Frequency Response 20Hz – 20kHz ± 0.1dB
Dynamic Range 111dB (A-weighted)
THD+N <0.0012% 
Noise EIN -128dBu (A-weighted)
Maximum Input Level 9dBu (at minimum gain)
Gain Range 56dB
Impedance 3kΩ
Line Inputs 1-2 (Variable Gain)
Frequency Response 20Hz – 20kHz ± 0.1dB
Dynamic Range 110.5dB (A-weighted)
THD+N <0.002%
Maximum Input Level 22dBu (at minimum gain)
Gain Range 56dB
Impedance 60kΩ
Line Inputs 3-4 (Fixed Gain)
Frequency Response 20Hz – 20kHz ± 0.1dB
Dynamic Range 110dB (A-weighted)
THD+N <0.002%
Maximum Input Level 18dBu (at minimum gain)
Impedance 44kΩ
Instrument Inputs
Frequency Response 20Hz – 20kHz ± 0.1dB
Dynamic Range 110dB (A-weighted)
THD+N <0.03%
Maximum Output Level (0 dBFS) 12.5dBu (at minimum gain)
Gain Range 56dB
Impedance 1.5MΩ
Line/Monitor Outputs
Dynamic Range (Line Outputs) 108dB
THD+N <0.002%
Maximum Output Level (0 dBFS) 15.5dBu 
Impedance 430Ω
Headphone Outputs
Dynamic Range 104dB (A-weighted)
THD+N <0.002%
Maximum Output Level 7dBu
Impedance <1Ω
Weight and DimensionsW x H x D 185 mm x 47.5 mm x 119.7 mm7.28 in x 1.87 in x 4.71 inWeight 615 g1.36 lb