Focusrite ISA Two

Focusrite ISA Two

ISA Two combines two fully independent ISA 110 microphone preamps with Lundahl LL1538 input transformers — the same transformer originally specified by Rupert Neve. With up to 80 dB of clean gain and selectable impedance, it delivers classic console-grade tone for vocals, instruments or stereo recording.

✅ 2 × ISA transformer-based mic preamps (Lundahl LL1538)
✅ Up to 80 dB gain (60 dB + 20 dB trim)
✅ Four selectable input impedances (incl. ISA110)
✅ Front-panel Hi-Z instrument inputs (2 MΩ)
✅ Rear-panel TRS line inputs
✅ Balanced insert points (6.3 mm TRS send/return)
✅ Variable High-Pass Filter 16–420 Hz (18 dB/oct)
✅ 8-segment LED meters with calibration
✅ Extremely low noise performance

Mic Input:
Gain: 0–60 dB stepped + 20 dB trim
EIN: -127 dB
Frequency Response: 10 Hz – 135 kHz (min gain)

Line Input:
Gain: -20 dB to +10 dB + trim
Input Impedance: 10 kΩ

Instrument Input:
Gain: 10–40 dB
Input Impedance: 2 MΩ

Form Factor: 19” rack
Power: IEC 100–240V

In the box:
– ISA Two unit

Tags: Focusrite ISA Two, ISA Two, Microphone preamplifiers