Description
ISA C8X combines the trademark ISA sound with comprehensive remote control and all the analogue and digital I/O, routing, and recallability you need to run your entire studio, plus switchable impedance, balanced inserts, and high-pass filtering. The first two channels feature ISA preamps with classic Lundahl LL1538 transformers and Console and 430 Air modes for new tonal options. All eight are fully controllable from the front panel and via Focusrite Control 2.
2U rack-mounted, 26-in/28-out USB-C audio interface
Eight remote-controlled preamps with up to 79dB of gain, two of which are ISA preamps with Lundahl LL1538 transformers
All-analogue Console and 430 Air modes for tonal shaping
24-bit/192kHz AD/DA conversion with up to 125dB of dynamic range
Additional Sonnox bundles available
Specifications
Hardware Overview
Microphone Preamps
8
Phantom Power
Yes (Independent per-channel)
Line Inputs
8
Instrument Inputs
2
Insert Sends
2
Insert Returns
2
Line Outputs
12
Headphone Outputs
2
Line Outputs
10
Headphone Outputs
2
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)
SPDIF Input
1 (2 channels at 96kHz)
SPDIF Output
1 (2 channels at 96kHz)
MIDI Input
1
MIDI Output
1
Word Clock Input
1
Word Clock Output
1
Talkback
Yes
Loopback
Yes
Connectivity
USB Type-C
Protocol
USB 2.0
Form Factor
Rack Mountable (2U)
Simultaneous I/O
26x28 (including Loopback)
A/D Resolution
24-bit/192 kHz
Maximum Power Draw
40W
Bus Powered
N
ISA Microphone Inputs (Channels 1-2)
Frequency Response
20Hz-20kHz (±0.4dB)
Dynamic Range (A-weighted)
117dB
THD+N (minimum at minimum gain)
-93dB (0.00023%)
Noise EIN (A-Weighted)
-128dB
Maximum Input Level (minimum gain, Low impedance)
+16dBu
Gain Range
79dB
Input Impedance (switchable)
800Ω (Low), 1400Ω (ISA 110), 2400Ω (Med), 7000Ω (High)
High Pass Filter (HPF)
75Hz cut-off frequency, 18dB/Octave
Microphone Inputs (Channels 3-8)
Frequency Response
20Hz-20kHz (±0.1dB)
Dynamic Range (A-weighted)
116dB
THD+N (minimum at 8dB Gain)
-100dB (0.001%)
Noise EIN (A-Weighted)
-127dB
Maximum Input Level (minimum gain)
+16dBu
Gain Range
69dB
Input Impedance
3200Ω
Fixed-level Line Inputs (Channels 1-8)
Frequency Response
20Hz-20kHz (±0.05dB)
Dynamic Range (A-weighted)
120dB
THD+N (minimum)
< -105dB (0.00056%)
Maximum Input Level
+24dBu
Instrument Inputs (Channels 1-2)
Frequency Response
20Hz-20kHz (±0.5dB)
Dynamic Range (A-weighted)
117dB
THD+N (minimum)
-89dB (0.0036%)
Maximum Input Level (at minimum gain)
+15dBu
Gain Range
79dB
Input Impedance (switchable)
400kΩ (Low), 1.2MΩ (High)
Inserts (Channels 1-2)
Connection
Balanced
Maximum Output Level (send)
+16dBu
Maximum Input Level (return)
+16dBu
Line Outputs
Frequency Response
20Hz-20kHz (±0.02dB)
Dynamic Range (A-weighted)
125dB
THD+N (minimum)
-113dB (0.00023%)
Maximum Output Level
+24dBu
Headphone Outputs
Frequency Response
20Hz-20kHz (±0.1dB)
Dynamic Range
114dB @ 33Ω, 116dB @ 300Ω, 116dB @ 600Ω
THD+N
-102dB @ 33Ω, -110dB @ 300Ω, -110dB @ 600Ω
Max Output Level
+8dBu @ 33Ω, +11dBu @ 300Ω, +11dBu @ 600Ω
Max Output Power
130mW @ 33Ω, 28mW @ 300Ω, 14mW @ 600Ω
Output Impedance
3Ω
Compatibility
Windows
Intel, AMD, and Arm64 processors supported
MacOS
Apple Silicon and Intel processors supported
Linux
ISA C8X is UAC2 class compliant and should work on most Linux systems but this is not tested or supported
Dimensions
Width
482.6 mm (19.00 in)
Depth
292.8 mm (11.53 in)
Height
89 mm (3.50 in)
Weight
5.558 kg (12.26 lbs)
Power Requirements
External
40W
What's in the Box?
ISA C8X audio interface
1.5mm USB type C-to-C cable
Region-specific IEC cable
Rubber feet (x4)
