Focusrite 18i8 Interface

• A-D dynamic range: 109 dB A-weighted (all inputs)
• D-A dynamic range: 108 dB A-weighted (line outputs)
• Supported sample rates: 44.1 kHz, 48 kHz, 88.2 kHz A 96 kHz
• Clock jitter: <250 ps

Microphone Inputs:

• Frequency response: 20 Hz ± 0.5 dB, 20 kHz ± 0.1 dB (min. gain)
• THD+N: -96 dB (1 kHz, –1dBFS, 20 kHz BW)
• Noise EIN: –122 dBu CCIR-RMS (measured at 60 dB of gain with 150 ohm termination)
• Maximum input level: +9 dBu (without pad)

Line Inputs:

• Frequency response: 20 Hz ± 0.5 dB, 20 kHz ± 0.2 dB (min. gain)
• THD+N: -83 dB (1 kHz, –1dBFS, 20 kHz BW)
• Noise (NiPoS): –105 dBFS CCIR-RMS (measured at min. gain with 50 ohm termination)
• Maximum input level: > +28 dBu

Instrument Inputs:

• Frequency response: 20 Hz ± 0.3 dB, 20 kHz ± 0.1 dB (min. gain)
• THD+N: -83 dB (1 kHz, –1dBFS, 20 kHz BW)
• Noise (NiPoS): –103 dBFS CCIR-RMS (measured at min. gain)
• Maximum input level: +8 dBu (without pad)

Line Outputs 1 & 2:

• Maximum output level (0 dBFS): +16 dBu, balanced
• THD+N: -99 dB (1 kHz, –1dBFS, 20 kHz BW) 

Dimensions:

• Height: 2.6 in (66 mm)
• Width: 9 in (227 mm)
• 57 oz (1.64 Kg)