Focusrite ISA Two 2‑Channel Rack‑Mount Microphone Preamplifier
Focusrite | SKU: FOCUSRT-ISATWO-AMSISA2
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Most orders placed before 10:00am PST will most likely ship out the same day. We work hard to process and ship your items quickly so you can start enjoying them as soon as possible.
Found a lower price? Contact us and we'll see if we can match it! Price match will only be applied to products sold and shipped by authorized retailers of the brand.
No restocking fee will be charged when you opt for store credit. Exclusions apply.
Condition: New
Focusrite ISA Two 2‑Channel Rack‑Mount Microphone Preamplifier
The Focusrite ISA Two brings two independent, legendary ISA 110‑derived microphone preamps into a compact 1U rack format. Combining Lundahl LL1538 transformer input stages with rotary gain control and variable impedance, it offers both the classic Focusrite warmth and modern flexibility for high-quality analog signal capture.
Each channel features front‑panel instrument and rear‑panel line/mic inputs, switchable impedance, individual high‑pass filters, inserts, and LED metering calibrated via rear‑panel trim—making it a powerful studio-quality unit for vocal, instrument, or stereo tracking.
Key Features
- Inputs: Mic (XLR), Line (TRS), front-panel DI (¼″ TS); switchable input impedance (Low: 600 Ω, ISA 110: 1.4 kΩ, Medium: 2.4 kΩ, High: 6.8 kΩ)
- Gain: Up to 80 dB of clean gain (60 dB stepped + 20 dB trim)
- High-Pass Filter: Smooth 18 dB/octave filter, variable from 16 Hz to 420 Hz
- Inserts: Balanced insert send/return per channel for external processing
- Metering: Front-panel 8‑segment LED meters with rear-panel calibration
- Transformers: Lundahl LL1538 input transformers—same as the original ISA 110 design
- Connectivity: Rear-panel mic, line, insert, and output jacks; IEC power input, calibration knob
- Power & Environment: Internal universal power supply (100–240 VAC, 35W). 1U rack height; requires ~75 mm rear clearance; max ambient temp 40 °C
- Warranty: 3‑year manufacturer’s warranty
Technical Specifications
- Dimensions: 19.0" (W) × 12.8" (D) × 1.7" (H) (~482 × 325 × 44 mm)
- Weight: 3.7 kg (8.12 lb)
- High-Pass Filter: 18 dB/octave, 16–420 Hz
- Maximum Gain (Mic): Up to 80 dB total
- Operating Power: 100–240 VAC, 35 W
What's Included
- 1x ISA Two 1U rack-mounted mic preamp unit
- 1x IEC mains power cable
