Scarlett 2i4 is a 2 in / 4 out USB audio interface featuring two pre-amps and four high-quality audio outputs. Housed in an anodized aluminum unibody chassis, the Scarlett 2i4 is designed for musicians and digital DJs.

Specifications:

• 2 in / 4 out USB audio interface.
• 96 KHz, 24-bit conversion.
• 2 Focusrite microphone preamplifiers.
• Red anodised aluminium unibody chassis.

Front panel

• 2 line/mic/instrument combination inputs - Neutrik XLR/ ¼ " TRS Jack Combo.
• 2 line/inst switches.
• 2 illuminating "PAD" buttons.
• 2 Gain knobs.
• 2 Gain halo signal indicators.
• 48V Phantom power switch.
• MIDI activity LED indicator.
• USB connection LED indicator.
• "DIRECT MONITOR" control.
• "STEREO/MONO" switch for direct monitor.
• Large monitor level dial (controls headphone and line level outputs).
• Headphone output - ¼" TRS Jack.
• Headphone level knob.
• "HEADPHONE SOURCE" switch.

Rear panel

• 2 balanced monitor outputs – TRS (channels 1-2).
• 4 unbalanced outputs – RCA Phono (channels 1-4).
• MIDI IO.
• USB 2.0 Port.
• Kensington Lock slot.

Included software

• Ableton Live Lite 8.
• Focusrite Scarlett plug-in suite.
• Novation Bass Station.
• Loopmasters content.
• Analogue Input Performance.

Mic

• Frequency Response 20Hz - 20kHz +/- 0.1 dB.
• THD+N < 0.002% (minimum gain, -1dBFS input with 22Hz/22kHz bandpass filter).
• Equivalent Input Noise (EIN) < -120dB: measured at 55dB of gain with 150? termination (20Hz/22kHz bandpass filter).
• Gain Range +10dB to +55dB (0dB to +45dB when pad is engaged).
• Max Input Level +3.5dBu.

Line

• Frequency Response 20Hz - 20kHz +/- 0.1dB.
• THD+N < 0.01% ('A' weighted measured with +16dB input gain -1dBFS at output and 22Hz/22kHz bandpass filter).
• Noise -90 dBu (22 Hz/22KHz bandpass filter).
• Signal to Noise Ratio > 100dB.
• Gain Range -10dB to +35dB (-20dB to +25dB when pad is engaged).
• Max Input Level +26dBu (at 1% THD+N).

Instrument

• Frequency Response 20Hz - 20kHz +/- 0.1dB.
• THD+N 0.0025% ('A' weighted measured with 16dB input gain, -1dBFS at output and 22Hz/22kHz bandpass filter).
• Noise -87dBu (22Hz/22kHz bandpass filter).
• Gain Range +10dB to +55dB (0dB to +45dB when pad is engaged).
• Max Input Level +3dBu (+13dBu pad in).

Analogue Output Performance

• Nominal Output Level.
• 0dBFS = +10dBu, balanced.
• 0dBFS = +5.5bBu, unbalanced.
• Frequency Response 20Hz - 20kHz +/- 0.2dB.
• THD+N.
• < 0.0015%, balanced (-1dBFS input 22Hz/22kHz bandpass filter, un-weighted).
• < 0.03 %, unbalanced (0dBFS input 22Hz/22kHz bandpass filter).
• Output Impedance < 12?.
• Power Output into 32? 24mW.

Digital Performance

• Clock sources Internal clock only.
• A-D Dynamic Range 105dB 'A-weighted' (all inputs). Converter chipset A-D dynamic range 114dB.
• D-A Dynamic Range 104dB 'A-weighted' (all outputs). Converter chipset D-A dynamic range 114dB.
• Supported sample rates 44.1 KHz, 48 KHz, 88.2 KHz, 96 KHz.

Crosstalk

• Input to Input Better than 90dB.
• Output to Output Better than 90dB.
• Input to Output Better than 85dB.

Input Metering

• Ring LED lit Green Signal present (-24 dBFS).
• Ring LED lit Red Signal overload (0dBFS), peak held for approximately 1 second.

Weight and Dimensions

• Height 48 mm.
• Width 210 mm.
• Depth 140 mm.
• Weight 890 g.