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Description
The Focusrite ISA C8X is a 2U rackmount USB-C audio interface providing 26 inputs, 28 outputs, and eight remotely controlled microphone preamps. Two channels use ISA preamps with Lundahl LL1538 transformers, while front-panel and Focusrite Control 2 operation support studio routing and recall.
Features
- 26-in/28-out USB-C interface in a 2U rackmount design
- Eight remote-controlled mic preamps with gain of up to 79 dB
- Two ISA microphone preamps with Lundahl LL1538 transformers
- Console and 430 Air analogue modes
- 24-bit/192 kHz conversion
- Per-channel phantom power and selectable input impedance
- ADAT and S/PDIF digital connectivity
- Balanced insert connections and high-pass filtering
Why We Like This
The combination of transformer-based ISA channels and broader remote-controlled I/O gives studios a single rack unit for recording inputs and routing. Front-panel access remains available when computer-based control is not convenient.
FAQs
Q: How many ISA transformer preamps are included?
A: Two of its eight microphone preamps use Lundahl LL1538 transformers.
Q: Can the preamps be controlled remotely?
A: Yes. The supplied product details specify control from the front panel and Focusrite Control 2.
Q: Is the USB-C cable included?
A: The supplied package list includes a USB-C to USB-C cable. Its length is not confirmed in the source data.
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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) |
Bus Powered: |
N |
Connection: |
Balanced |
Connectivity: |
USB Type-C |
Dynamic Range: |
114dB @ 33Ω, 116dB @ 300Ω, 116dB @ 600Ω |
External: |
40W |
Fixed-level Line Inputs (Channels 1-8) - Dynamic Range (A-weighted): |
120dB |
Fixed-level Line Inputs (Channels 1-8) - Frequency Response: |
20Hz-20kHz (±0.05dB) |
Fixed-level Line Inputs (Channels 1-8) - THD+N (minimum): |
< -105dB (0.00056%) |
Form Factor: |
Rack Mountable (2U) |
Headphone Outputs: |
2 |
Headphone Outputs - Frequency Response: |
20Hz-20kHz (±0.1dB) |
High Pass Filter (HPF): |
75Hz cut-off frequency, 18dB/Octave |
ISA Microphone Inputs (Channels 1-2) - Dynamic Range (A-weighted): |
117dB |
ISA Microphone Inputs (Channels 1-2) - Frequency Response: |
20Hz-20kHz (±0.4dB) |
ISA Microphone Inputs (Channels 1-2) - Gain Range: |
79dB |
ISA Microphone Inputs (Channels 1-2) - Input Impedance (switchable): |
800Ω (Low), 1400Ω (ISA 110), 2400Ω (Med), 7000Ω (High) |
ISA Microphone Inputs (Channels 1-2) - Noise EIN (A-Weighted): |
-128dB |
Input Impedance: |
3200Ω |
Insert Returns: |
2 |
Insert Sends: |
2 |
Instrument Inputs: |
2 |
Instrument Inputs (Channels 1-2) - Dynamic Range (A-weighted): |
117dB |
Instrument Inputs (Channels 1-2) - Frequency Response: |
20Hz-20kHz (±0.5dB) |
Instrument Inputs (Channels 1-2) - Gain Range: |
79dB |
Instrument Inputs (Channels 1-2) - Input Impedance (switchable): |
400kΩ (Low), 1.2MΩ (High) |
Instrument Inputs (Channels 1-2) - THD+N (minimum): |
-89dB (0.0036%) |
Line Inputs: |
8 |
Line Outputs - Dynamic Range (A-weighted): |
125dB |
Line Outputs - Frequency Response: |
20Hz-20kHz (±0.02dB) |
Line Outputs - THD+N (minimum): |
-113dB (0.00023%) |
Linux: |
ISA C8X is UAC2 class compliant and should work on most Linux systems but this is not tested or supported |
Loopback: |
Yes |
MIDI Input: |
1 |
MIDI Output: |
1 |
MacOS: |
Apple Silicon and Intel processors supported |
Manufacturer SKU: |
MOIFC8X |
Max Output Level: |
+8dBu @ 33Ω, +11dBu @ 300Ω, +11dBu @ 600Ω |
Max Output Power: |
130mW @ 33Ω, 28mW @ 300Ω, 14mW @ 600Ω |
Maximum Input Level: |
+24dBu |
Maximum Input Level (at minimum gain): |
+15dBu |
Maximum Input Level (minimum gain): |
+16dBu |
Maximum Input Level (minimum gain, Low impedance): |
+16dBu |
Maximum Input Level (return): |
+16dBu |
Maximum Output Level: |
+24dBu |
Maximum Output Level (send): |
+16dBu |
Maximum Power Draw: |
40W |
Microphone Inputs (Channels 3-8) - Dynamic Range (A-weighted): |
116dB |
Microphone Inputs (Channels 3-8) - Frequency Response: |
20Hz-20kHz (±0.1dB) |
Microphone Inputs (Channels 3-8) - Gain Range: |
69dB |
Microphone Inputs (Channels 3-8) - Noise EIN (A-Weighted): |
-127dB |
Microphone Preamps: |
8 |
Output Impedance: |
3Ω |
Phantom Power: |
Yes (Independent per-channel) |
Product Depth: |
292.8 mm (11.53 in) |
Product Height: |
89 mm (3.50 in) |
Product Width: |
482.6 mm (19.00 in) |
Protocol: |
USB 2.0 |
SPDIF Input: |
1 (2 channels at 96kHz) |
SPDIF Output: |
1 (2 channels at 96kHz) |
Simultaneous I/O: |
26x28 (including Loopback) |
THD+N: |
-102dB @ 33Ω, -110dB @ 300Ω, -110dB @ 600Ω |
THD+N (minimum at 8dB Gain): |
-100dB (0.001%) |
THD+N (minimum at minimum gain): |
-93dB (0.00023%) |
Talkback: |
Yes |
Windows: |
Intel, AMD, and Arm64 processors supported |
Word Clock Input: |
1 |
Word Clock Output: |
1 |
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
