4ms Percussion Interface + Exp.
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4ms
Percussion Interface + Exp.
Product Info
Article Number:
545206
Brand:
4ms
Model:
Percussion Interface + Exp.
Category:
Interface Modules
Price:
$181.50
* Prices may vary. Check retailer for current pricing and availability.
This 4ms combo is a clever way to turn drum hits or other audio signals into rhythmic triggers and envelopes for your modular system. The expander gives you a good amount of control over those envelopes, making it a really useful tool for anyone building generative percussion sequences or complex rhythmic patterns. It's a great solution for those who want to extract more from their drum machines or sample libraries.
Product Description
- 4ms Percussion Interface + Exp.
- Interface
- Generates gate and envelope signals from audio sources such as drums
- percussion or microphones
- Percussion interface offers sensitivity control
- sustain control (gate length) and adjustable envelope decay
- Envelope generator switchable to envelope follower mode
- Signal input
- gate output and outputs for positive and inverted envelope signal
- The expander expands the percussion interface with a 6.3 mm jack input
- audio output at Eurorack level
- three switchable gain ranges and outputs for positive and inverted envelope signal with attenuators
- Power consumption: 104mA (+12V) / 65mA (-12V)
- Width (percussion interface & expander): 4 U
- Depth (percussion interface & expander): 25 mm
PROS
- • Excellent transient response for tight, defined percussion triggers
- • Expander adds significant flexibility for envelope shaping and attenuation
- • 4ms's characteristic robust build quality and reliable operation
- • Envelope follower mode expands utility beyond simple percussion gating
CONS
- • Power consumption is relatively high for a module of this size
- • Limited input gain range may struggle with very quiet signals
- • The interface can be a bit finicky with extremely complex or noisy audio inputs
Product Video
Key Features
Type
Percussion Interface & Expander Module
Connections
Signal Input, Gate Output, Positive/Inverted Envelope Outputs (6.3mm jack)
HP Width
4
Depth
25 mm
Power Draw
104mA (+12V) / 65mA (-12V)
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Frequently Asked Questions
The attenuators on the expander's outputs allow you to precisely control the amplitude of the positive and inverted envelope signals, shaping their impact on subsequent modules.
While usable, a low-output microphone might require a preamp to provide sufficient signal level. The input impedance isn't specifically designed for microphone-level signals.
It *can* trigger from noise, but the sensitivity control will be critical; too much noise will create unwanted triggers. It’s best suited for relatively clean, percussive audio.
