Hands-On Review: Focusrite Scarlett 8i6 and 18i6

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These solid, low latency interfaces offer Focusrite mic preamps and a useful software package for a great value.

  Focusrite Scarlett 18i6 - USB Audio Interface Focusrite Scarlett 8i6 - USB Audio Interface
Converters 24-bit
<500 picoseconds clock jitter
24-bit
<500 picoseconds clock jitter
Sample Rates 44.1, 48, 88.2 and 96kHz 44.1, 48, 88.2 and 96kHz
Analog In 2 x XLR/TS combo Microphone/Instrument (front panel)
6 x 1/4" TRS phone Line (rear panel)
2 x XLR/TS combo Microphone/Instrument (front panel)
2 x 1/4" TRS phone Line (rear panel)
Input Impedance Microphone: 2kΩ
Line: 10kΩ
Microphone: 2kΩ
Line: 10kΩ
Analog Outputs 2 x 1/4" TRS phone Monitor
1 x 1/4" TRS phone Headphone
4 x 1/4" TRS phone Monitor
1 x 1/4" TRS phone Headphone
Maximum Output Level +12dBu +12dBu
Digital Input Connectors 1 x Lightpipe ADAT optical (also functions in 2-channel optical S/PDIF mode)
1 x RCA coaxial S/PDIF
1 x RCA coaxial S/PDIF
Digital Output Connectors 1 x Lightpipe ADAT optical (also functions in 2-channel optical S/PDIF mode)
1 x RCA coaxial S/PDIF
1 x RCA coaxial S/PDIF
MIDI In/Out 2 x 5-pin DIN MIDI I/O 2 x 5-pin DIN MIDI I/O
Sync In/Out S/PDIF S/PDIF
Headphone Output Yes Yes
Gain Range Microphone: +13dB to +60dB
Line Inputs 1+2: -10dB to +36dB
Instrument: +13dB to +60dB
Microphone: +13dB to +60dB
Line Inputs 1+2: -10dB to +36dB
Instrument: +13dB to +60dB
Dynamic Range A/D: >109dB, A-weighted (all analog inputs)
D/A: >106dB, A-weighted (all analog outputs)
A/D: >109dB, A-weighted (all analog inputs)
D/A: >106dB, A-weighted (all analog outputs)
THD + N Microphone: 0.001% (measured at 1kHz with a 20Hz to 22kHz band-pass filter)
Line Inputs 1+2: 0.001% (measured with 0dBFS input and 22Hzto 22kHz band-pass filter)
Line Inputs 3+8: 0.001% (measured at 1kHz with a 20Hz to 22kHz band-pass filter)
Instrument: 0.004% (measured with 0dBu input and 20Hz to 22kHz band-pass filter)
Output: 0.001% (0dBFS input, 20Hz to 22kHz band-pass filter)
Microphone 0.001% (measured at 1kHz with a 20Hz to 22kHz band-pass filter)
Line Inputs 1+2: 0.001% (measured with 0dBFS input and 22Hzto 22kHz band-pass filter)
Line Inputs 3+4: 0.003% (measured at 1kHz with a 20Hz to 22kHz band-pass filter)
Instrument: 0.004% (measured with 0dBu input and 20Hz to 22kHz band-pass filter)
Output: 0.001% (0dBFS input, 20Hz to 22kHz band-pass filter)
Noise Microphone EIN: 124dB analog to digital (measured at 60dB of gain with 150Ω termination 20Hz to 22kHz band-pass filter)
Line Inputs 1+2: -90dBu (22Hz to 22kHz band-pass filter)
Line Inputs 3+8: -100dBu (22Hz to 22kHz band-pass filter)
Instrument: -87dBu (20Hz to 22kHz band-pass filter)
Microphone EIN: 124dB analog to digital (measured at 60dB of gain with 150Ω termination 20Hz to 22kHz band-pass filter)
Line Inputs 1+2: -90dBu (22Hz to 22kHz band-pass filter)
Line Inputs 3+4: -100dBu (22Hz to 22kHz band-pass filter)
Instrument: -87dBu (20Hz to 22kHz band-pass filter)
Crosstalk >100dB >100dB
Frequency Response Microphone: 20Hz to 20kHz, +/- 0.2dB
Line: 20Hz to 20kHz, +/- 0.2dB
Instrument: 20Hz to 20kHz, +/- 0.1dB
Microphone: 20Hz to 20kHz, +/- 0.2dB
Line: 20Hz to 20kHz, +/- 0.2dB
Instrument: 20Hz to 20kHz, +/- 0.1dB
Display Dual, 2-segment input meters: -18 and 0dBFS
Locked indicator
USB connected indicator
Instrument input source selection LED for channels 1 and 2
48V phantom power switch and LED for inputs 1 and 2
Dual, 2-segment input meters: -18 and 0dBFS
Locked indicator
USB connected indicator
Instrument input source selection LED for channels 1 and 2
48V phantom power switch and LED for inputs 1 and 2
Power Requirements 12VDC via included power supply 12VDC via included power supply
Minimum System Requirements Mac OS X - Windows XP SP3 (32-bit), Vista (32-bit), Windows 7 32- and 64-bit) Mac OS X - Windows XP SP3 (32-bit), Vista (32-bit), Windows 7 32- and 64-bit)
Dimensions (WxDxH) 8.5 x 8.7 x 1.8" (215 x 220 x 45mm) 8.5 x 8.7 x 1.8" (215 x 220 x 45mm)
Weight 3.3 lb (1.5kg) 3.3 lb (1.5kg)
Specialties 18 input by 6 output software mixer 18 input by 6 output software mixer

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Looks like the specs are flipped - the first column is the 18i6, the second the 8i6.

Hi Captain,

Thank you for bringing this to our attention. We have made the appropriate correction. Thank you for your participation and contribution to InDepth.