Description
FOCUSRITE SCARLETT 18i8 USB AUDIO INTERFACE
The Focusrite Scarlett 18i8 is a fine option for Smaart users who are regularly deploying up to 4 measurement microphones. The 18i8 features 4 front panel XLR/TRS combo inputs and an additional 4 fixed-gain line level inputs on the rear panel, giving Smaart users increased measurement configuration flexibility. The 18i8 utilizes the Focusrite Control application to internally route output loopback signals and set output levels discretely for any of the 18i8’s 4 line outputs. All four XLR preamps achieve the same +9dBu sensitivity at minimum gain, making them ideal for SPL monitoring with low sensitivity microphones. The 18i8 is a good choice for Smaart users who wish perform spectrum and transfer function live averages, deploying up to 4 measurement microphones, and benefit from the enhancements afforded via the Focusrite Control application.
FEATURES:
- 4 XLR/TRS Combo input jacks
- 4 fixed gain line inputs (on the rear panel)
- Rugged metal unibody case
- Lightweight, compact form that fits easily in a laptop bag or measurement kit
- 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176kHz, 192kHz sample rate support
4 XLR/ TRS Combination Inputs:
- Max. Input Level (XLR): 9dBu (at minimum gain)
- Max. Input Level (TRS): 22dBu (at minimum gain)
- Gain Range: 56dB
SYSTEM REQUIREMENTS:
- Mac- OSX 10.12 (Sierra) or later
- PC- Windows 7 or later
Clock Source: Internal
Supported sample rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
Microphone Inputs
Dynamic Range: 111 dB (A-weighted)
Frequency Response: 20 Hz to 20 kHz ±0.1 dB
THD+N: < ,0.0012% (minimum gain, -1 dBFS input with 22 Hz/22 kHz bandpass filter)
Noise EIN: -128 dB (A-weighted)
Maximum Input Level: +9 dBu
Gain Range: 56 dB
Input impedance: 3 kohms
Line Inputs
Dynamic Range: 110.5 dB (A-weighted)
Frequency Response: 20 Hz to 20 kHz ±0.1 dB
THD+N: < ,0.002% (minimum gain, -1 dBFS input with 22 Hz/22 kHz bandpass filter)
Maximum Input Level: +22 dBu at minimum gain
Gain Range: 56 dB
Input impedance: 60 kohms
Instrument Inputs
Dynamic Range: 110 dB (A-weighted)
Frequency Response: 20 Hz to 20 kHz ±0.1 dB
THD+N: < ,0.03% (minimum gain, -1 dBFS input with 22 Hz/22 kHz bandpass filter)
Maximum Input Level: +12.5 dBu at minimum gain
Gain Range: 56 dB
Input impedance: 1.5 Mohms
Line Outputs
Dynamic Range: 108.5 dB (A-weighted)
Maximum Output Level (0 dBFS): +15.5 dBu at minimum gain , balanced outputs
THD+N: < ,0.002% (maximum level, -1 dBFS input with 22 Hz/22 kHz bandpass filter)
Output impedance: 430 ohms
Headphone Outputs
Dynamic Range: 104 dB (A-weighted)
Maximum Output Level: 7 dBu
THD+N: < ,0.002% (maximum level, -1 dBFS input with 22 Hz/22 kHz bandpass filter)
Output impedance: < ,1 ohm