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Scarlett 18i6
18 in / 6 out USB 2.0 audio interface featuring two Focusrite mic preamps

Specifications

 We always quote 'real world' performance figures (measured to the AES17 standard). Some companies choose to quote chipset performance, which is misleading, and here's why.

Microphone Inputs 1-2

  • Frequency Response: 20Hz - 20kHz +/- 0.2 dB
  • Gain Range: +13dB to +60dB
  • THD+N: 0.001% (measured at 1kHz with a 20Hz/22kHz bandpass filter)
  • Noise EIN:  124dB analogue to digital  (measured at 60dB of gain with 150Ω termination (20Hz/22kHz bandpass filter)
  • Input Impedance: 2kΩ

 

DIGITAL PERFORMANCE

  • A/D Dynamic Range > 110dB (A-weighted), all analogue inputs
  • D/A Dynamic Range > 106dB (A-weighted), all analogue outputs
  • Clock Sources:
    • Internal Clock
    • Sync to Word Clock on SPDIF Input (RCA)
    • Sync to Word Clock on ADAT Optical Input
  • Clock jitter < 500 picoseconds
  • Supported Sample Rates: 44.1kHz, 48kHz, 88.2kHz, 96kHz
  • 18 input channels to computer: Analogue (8), SPDIF (2), ADAT (8)
  • 6 output channels from computer: DAW (6)
  • 6 output channels from Scarlett 18i6: Analogue (4), SPDIF (2)
  • 18 input by 6 output mixer

 

Line Inputs (Inputs 1-2)

  • Frequency Response: 20Hz - 20kHz +/- 0.2dB
  • Gain Range: -10dB to +36dB
  • THD+N: 0.001% (measured with 0dBFS input and 22Hz/22kHz bandpass filter)
  • Noise: -90dBu (22Hz/22kHz bandpass filter)
  • Input Impedance: >10kΩ

 

Line Inputs 3-8

  • Frequency Response: 20Hz - 20kHz +/- 0.2 dB
  • Input Level: +10dBu for 0dBFS (balanced inputs)
  • THD+N: 0.001% (measured at 1kHz with a 20Hz/22kHz bandpass filter)
  • Noise: -100dBu (22Hz/22kHz bandpass filter)
  • Input Impedance: >10kΩ

 

Instrument Inputs (Inputs 1 and 2)

  • Frequency Response: 20Hz - 20kHz +/- 0.1dB
  • Gain Range: +13dB to +60dB
  • THD+N: 0.004% (measured with 0dBu input and 20Hz/22kHz bandpass filter)
  • Noise: -87dBu (20Hz/22kHz bandpass filter)

 

Analogue Audio Outputs (Outputs 1-2)

  • 2 Electronically Balanced Outputs
  • Maximum Output Level (0dBFS): +16dBu
  • Frequency Response: 20Hz - 20kHz +/- 0.2 dB
  • THD+N: 0.001% (0dBFS input, 20Hz/22kHz bandpass filter)

 

Crosstalk (Channel Isolation)

  • Any input to input: > 100dB
  • Any output to output: > 100dB
  • Any input to output: > 100dB

 

Weight and Dimensions

  • Dimensions (W x H x D): 
    • Unboxed: approx. 215mm x 45mm x 220mm (8.5 x 1.8 x 8.7 inches)
    • Boxed: approx. 335mm x 275mm x 125mm (13.2 x 10.8 x 4.9 inches)
  • Weights
    • Net Weight: 1.5kg / 3.3lbs
    • Gross Weight: approx. 2.39kg / 5.3lbs

 

 

Connectivity

CHANNELS AT A GLANCE

 

IN

No. FormatConnectorDetails

2Mic/Line/InstCombo XLRInc. 2 instrument inputs

6Line analogue¼” TRS JackOn rear panel

2S/PDIFRCA phonoOn rear panel

8ADAT OpticalTOSLINKOn rear panel

16MIDI5 pin DIN connectorProvides 16 channels of MIDI

 

OUT

No. FormatConnectorDetails

2Line analogue¼”  TRS JackOn rear panel

2S/PDIFRCA phonoOn rear panel

2Stereo headphones¼”  TRS JackIndependent of line outputs

16MIDI5 pin DIN connectorProvides 16 channels of MIDI

 

Analogue Channel Inputs (Inputs 1-8) 

  • 2 Mic XLR  Combo (channels 1-2) on front panel
  • 6 Line ¼” TRS (channels 3-8) on rear panel
  • Automatic switching between Mic / Line  (channels 1-2)
  • Switching between Line / Instrument Inputs (channels 1-2) via Scarlett Mix Control Application

 

Digital Channel Inputs (Inputs 9-18) 44.1 - 96kHz

  • Stereo S/PDIF input on RCA
  • 8 optical ADAT channels (4 channels at 88.2 / 96kHz)

 

Analogue Audio Outputs (Outputs 1-4)

  • 2 ¼” TRS Jacks
  • Output Level control (analogue)
  • Separate Stereo Headphones Mix (outputs 3/4) on ¼” TRS with independent analogue volume control

 

Digital Channel Outputs (Outputs 5-6) 44.1 - 96kHz

  • Stereo S/PDIF Output on RCA

 

Other I/O

  • 1 USB Type “B” Connector
  • 2 Standard 5-pin DIN MIDI connectors: In and Out
  • DC Power Input Connector (for use with supplied universal input power supply)

 

Front Panel Indicators

  • 8 2-segment input meters, -18 and 0dBFS
  • “LKD” Lock Indicator
  • “USB” Host Connected Indicator
  • Instrument input source selection LED for channels 1 and 2
  • Phantom Power (48V) switch and LED for inputs 1 and 2

 

Compatibility

MAC

OS X 10.6.5 Snow Leopard

 

WINDOWS

Windows 7 (All versions), Windows Vista (32bit only), or Windows XP SP3 (32bit only)

 

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