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[Discontinued] Focusrite Scarlett 2i4 USB Audio Interface - New Price

Availability: DISCONTINUED

Regular Price: $249.99

Special Price: $159.99

Regular Price: $249.99

Special Price: $159.99


Scarlett 2i4 is a 2 in / 4 out USB audio interface featuring two award-winning Focusrite pre-amps and four high-quality audio outputs. Housed in an anodised aluminium unibody chassis, the Scarlett 2i4 is the perfect audio interface for musicians and digital DJs.



Since 1985, Focusrite has been a leading manufacturer in the professional audio field. Focusrite mic pres are the choice of leading artists, recording studios and engineers around the world. Those years of audio experience ensure the Scarlett 2i4 sounds as beautiful as it looks.
Connect Scarlett 2i4 to your Mac or PC and get ready to make music! With the very best in digital audio technology and a variety of input and output options, the Scarlett 2i4 will capture and playback your sound with superb quality.


  • Two high-quality, award-winning Focusrite mic preamps
  • Rugged anodised metal unibody chassis
  • Two inputs switchable between Mic, Instrument, or Line
  • Professional-standard 24-bit/96kHz digital conversion
  • MIDI in and out - no breakout cable needed
  • Unique LED-halo signal indicators
  • Direct Monitor function for zero-latency tracking
  • Easy Monitor switching A/B outputs for DJ
  • Powered by USB connection - no power supply needed
  • Large monitor level dial
  • Kensington lockable
  • Comes with Focusrite Scarlett plug-in suite & Ableton Live Lite

The front panel has two combo XLR inputs so you can connect microphones, guitars and line level signals with absolute confidence that your sound is in safe hands. Use the “PAD” function for loud guitars or microphones, and use the “DIRECT MONITOR” control for a low-latency mix of input and playback signals.

Unique signal halos let you know that you’ve got a good audio level for recording. Green is good and red means that your audio is too loud, and that your should lower the level control.

With 4 RCA outputs, a high-level headphone output and pristine audio quality, in a package ready for the road, the Scarlett 2i4 is ideal for today's digital performers and laptop DJs.



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

Included software

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

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

Rear panel

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


Analogue Input Performance
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 150Ω termination (20Hz/22kHz bandpass filter)
Gain Range +10dB to +55dB   (0dB to +45dB when pad is engaged)
Max Input Level +3.5dBu
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)
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

< 0.0015%, balanced (-1dBFS input 22Hz/22kHz bandpass filter, un-weighted)

< 0.03 %, unbalanced (0dBFS input 22Hz/22kHz bandpass filter)

Output Impedance < 12Ω
Power Output into 32Ω 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
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 
what's included

Included software

  • Ableton Live Lite 8
  • Focusrite Scarlett plug-in suite
  • Novation Bass Station
  • Loopmasters content
Scarlett 2i4 User Guides              14/09/2012               

Related videos

Scarlett 2i4 overview  

Scarlett 2i4 promo

Scarlett 2i4 tutorial  

Scarlett 2i4 tutorial

Scarlett 2i4
with Novation MiniNova

Novation MiniNova synth performance

Controlling the
Scarlett Plug-in Suite

Scarlett plug-in suite controlling Novation impulse with Scarlet 2i2

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