4ms Listen IO
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4ms
Listen IO
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The Listen IO is a fantastic little workhorse for Eurorack users needing a clean, reliable audio interface. It's perfect for integrating external synths, effects, or microphones into your modular system, especially if you're prioritizing space and straightforward functionality over a ton of extra bells and whistles. A solid choice for both beginners and experienced modular enthusiasts.
Product Description
- 4ms Listen IO
- Eurorack Module
- Stereo audio interface
- 2 Inputs for external signals
- e.g.: synthesiser
- effect pedals
- dynamic microphones
- guitars
- with gain control of max. +30 dB
- for adjustment to Eurorack level
- 2 Outputs with level control to adjust from Eurorack to line level
- Outputs can also be used as stereo headphone outputs
- LED level indicators for inputs and outputs
- Connection to other 4ms Listen modules or WAV recorders possible via jumper cable
- Current consumption: 62 mA (+12 V) / 55 mA (-12 V)
- Width: 6 TE
- Depth: 24 mm
PROS
- • Excellent gain staging for Eurorack levels, avoids clipping.
- • Compact 6TE form factor maximizes space efficiency.
- • Robust build quality; feels solid and well-assembled.
- • Flexible headphone outputs offer convenient monitoring solution.
CONS
- • Limited input headroom; can struggle with very hot signals.
- • Lacks advanced features like phantom power or direct recording.
- • Depth is shallow, may require careful patching in tight racks.
Product Video
Key Features
Type
Stereo Audio Interface Module
Connections
2 x Stereo Inputs, 2 x Stereo Outputs, Jumper Connectors
HP Width
6 TE
Depth
24 mm
Power Draw
62 mA (+12 V) / 55 mA (-12 V)
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Frequently Asked Questions
It's a simpler, more affordable option than interfaces like the Intellijel Stereo Mixer or Expert Sleepers. You sacrifice advanced features for a more focused, budget-friendly solution.
While you can connect it to a computer, it doesn't offer direct recording capabilities; you'll need an external audio interface for that.
Yes, it should be sufficient, but you'll want to test and monitor levels carefully to avoid clipping, especially with hotter mics.
