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Description
The Focusrite Scarlett 18i20 4th Gen provides 26 inputs and 26 outputs with eight microphone preamps for multichannel recording. The rackmount-capable interface includes line, instrument, ADAT, S/PDIF, MIDI, and word-clock connections for larger studio setups.
Features
- Eight mic/line preamps with two front-panel instrument-capable inputs
- 26-input/26-output configuration
- Up to 16 channels of ADAT I/O at 44.1/48 kHz
- Two headphone outputs and ten line outputs
- Air modes, Auto Gain and Clip Safe
- MIDI, S/PDIF and word-clock connections
- Talkback and loopback functions
- 24-bit/192 kHz audio conversion
- 1U rack-mountable design with rack ears listed in the box
Why We Like This
Eight preamps accommodate mic-heavy sessions, such as multitrack drums, without starting with external preamps. ADAT connectivity and built-in talkback support additional recording and monitoring workflows.
FAQs
Q: How many microphones can connect to built-in preamps?
A: The interface has eight microphone preamps.
Q: Is Scarlett 18i20 powered by the USB bus?
A: No. The source states that it is not bus powered and lists an IEC power cable in the box.
Q: Are rackmount accessories included?
A: Yes. Rack ears are listed among the supplied contents.
Based in Chicago, IL, Gear Club Direct supports musicians, DJs, and creators every day with reliable gear and knowledgeable service.
Tech Specs
A/D Resolution: |
24-bit/192 kHz |
ADAT Inputs: |
2 (16 channels at 44.1/48kHz and up to 8 channels at 96kHz) |
ADAT Outputs: |
2 (16 channels at 44.1/48kHz and up to 8 channels at 96kHz) |
Air Mode: |
Yes |
Analogue to Digital Converter - Dynamic Range: |
120dB |
Analogue to Digital Converter - THD+N: |
-110dB |
Auto Gain: |
Yes |
Bus Powered: |
No |
Clip Safe: |
Yes |
Connectivity: |
USB Type-C |
Digital to Analogue Converter - Dynamic Range: |
130dB (A-Weighted) |
Digital to Analogue Converter - THD+N: |
-115dB |
External: |
30W |
Form Factor: |
Desktop / Rack Mountable (1U) |
Headphone Outputs: |
2 |
Headphone outputs - Dynamic Range: |
112dB @ 33Ω 116dB @ 300Ω |
Headphone outputs - Frequency Response: |
20-20kHz ± 0.1dB @ 33Ω / 300Ω |
Headphone outputs - Impedance: |
11Ω |
Headphone outputs - Maximum Output Level: |
5dBu into 33Ω 11dBu into 300Ω |
Headphone outputs - THD+N: |
-100dB @ 33Ω (Minimum) -110dB @ 300Ω (Minimum) |
Instrument Inputs: |
2 |
Instrument inputs - Dynamic Range: |
113dB (A-Weighted) |
Instrument inputs - Frequency Response: |
20-20kHz ± 0.05dB |
Instrument inputs - Gain Range: |
62dB |
Instrument inputs - Impedance: |
1MΩ |
Instrument inputs - Maximum Input Level: |
12dBu |
Instrument inputs - THD+N: |
-80dB @ 8dB gain |
Line Inputs: |
8 |
Line Outputs: |
10 |
Line outputs (Balanced) - Dynamic Range: |
122dB (A-Weighted) |
Line outputs (Balanced) - Frequency Response: |
20-20kHz ± 0.02dB |
Line outputs (Balanced) - Impedance: |
200Ω |
Line outputs (Balanced) - Maximum Output Level: |
16dBu |
Line outputs (Balanced) - THD+N: |
-112dB |
Loopback: |
Yes |
MIDI Inputs: |
1 |
MIDI Outputs: |
1 |
Manufacturer SKU: |
MOSC0037 |
Maximum Output Power: |
57mW into 33Ω 27mW into 300Ω |
Microphone inputs - Dynamic Range: |
116dB (A-Weighted) |
Microphone inputs - Frequency Response: |
20-20kHz ± 0.06dB |
Microphone inputs - Gain Range: |
69dB |
Microphone inputs - Impedance: |
3kΩ |
Microphone inputs - Maximum Input Level: |
16dBu |
Microphone inputs - THD+N: |
-100dB @ 8dB gain |
Noise EIN: |
-127dBu (A-Weighted) |
Number of Microphone Preamps: |
8 |
Phantom Power: |
Yes (Independent) |
Product Depth: |
259.73mm |
Product Height: |
46.55mm |
Product Width: |
442mm |
Protocol: |
USB 2.0 |
SPDIF Inputs: |
1 |
SPDIF Outputs: |
1 |
Simultaneous I/O: |
26 x 26 |
Supported sample rates: |
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
Talkback: |
Yes |
Variable Line inputs - Dynamic Range: |
115.5dB (A-Weighted) |
Variable Line inputs - Frequency Response: |
20-20kHz ± 0.05dB |
Variable Line inputs - Gain Range: |
69dB |
Variable Line inputs - Impedance: |
24kΩ |
Variable Line inputs - Maximum Input Level: |
22dBu |
Variable Line inputs - THD+N: |
-100dB @ 8dB gain |
Windows: |
Intel, AMD, and Arm64 processors supported |
macOS: |
Apple Silicon and Intel processors supported |
Delivery & Returns
At Gear Club Direct, we want you to be happy with your purchase. We understand that there are times when once a product is received, it may not be what you needed or wanted after all. So, we will gladly accept your qualifying return within 15 days of the delivery date. After 15 days of the delivery date, all sales are final.
The Return Process
Customers are required to obtain a Pre-Authorization to return any product. To submit a request for a return, simply log in to your account and request a return and one of our sales representatives will contact you within 24-48 business hours. If you do not have an account with us, please open a help ticket, providing as much detail as possible and whether you are requesting a refund or an exchange. READ MORE
