The NF ACOUS NM20 IEM is a professional in-ear monitor built as a full upgrade from the classic NM2, aimed at live performers, studio musicians, and audio engineers who need accurate, uncoloured reference sound. Pairing an MC2L-100P dynamic driver with patented Clutter Trap acoustic technology, it focuses on clean transient detail, controlled resonance, and reliable comfort during long sets or sessions.
MC2L-100P Driver and Clutter Trap Acoustic Technology
At the core of the NM20 is the upgraded MC2L-100P dynamic driver, working alongside NF ACOUS's patented Clutter Trap system to damp unwanted internal resonance and sharpen tonal accuracy. The result is a transparent, natural monitoring profile across a 9 Hz to 40 kHz frequency range, with distortion kept under 1%.
Rated at 32 ohms with 108 dB/mW sensitivity and a 125 dB maximum SPL, the NM20 handles demanding stage feeds and high-output headphone amplifiers cleanly while retaining fine detail.
Lightweight Construction and 25 dB Noise Insulation
The outer shell combines high-strength polycarbonate with metal accents, keeping the earpieces light in the ear while standing up to regular gigging and studio use. A snug fit provides 25 dB of passive noise insulation to cut down stage wash and room bleed, helping you monitor clearly without pushing volume levels.
Secure 2-Pin Connection and Supplied Accessories
A redesigned 0.78 mm dual-pin socket holds the included 5N OFC cable firmly in place during active stage movement. In the box, you get six ear tips across MS, S, M, and L sizes to dial in a proper seal, a 3.5 mm to 6.35 mm adapter for mixing desks and interfaces, and a protective storage box.
NF ACOUS NM20 IEM Specifications
- Upgrade Design - full upgrade from the classic NM2 with refined sound, comfort, and build quality.
- Driver - MC2L-100P dynamic driver for clean, transparent reference monitoring.
- Acoustic Technology - patented Clutter Trap system to reduce unwanted resonance and improve clarity.
- Shell Construction - lightweight high-strength polycarbonate shell with metal accents for durability and comfort.
- Ear Tips - 6 ear tips supplied (MS, S, M, L) for a secure, tailored seal.
- Cable - detachable 0.78 mm dual-pin 5N OFC cable with redesigned secure connection.
- Passive Noise Insulation - 25 dB isolation to reduce external stage and studio noise.
- Frequency Response - 9 Hz to 40 kHz for extended low-end and high-frequency detail.
- Impedance - 32 ohms for consistent performance across wireless beltpacks, interfaces, and headphone amps.
- Sensitivity - 108 dB/mW for efficient output.
- Maximum SPL - 125 dB for high-headroom monitoring in loud environments.
- Distortion - less than 1% for accurate, natural reproduction.
- Connector - 3.5 mm jack with included 3.5 mm to 6.35 mm adapter.
- Included Accessories - 0.78 mm 2-pin 5N cable, ear tips (MS, S, M, L), 3.5 mm to 6.35 mm adapter, storage box, and user guide.
- Dimensions - 15 cm x 13.2 cm x 8.3 cm.
- Weight - 0.3 kg.
Designed for live stage monitoring, studio tracking, and critical listening, the NF ACOUS NM20 IEM gives musicians and engineers transparent reference sound, dependable 25 dB isolation, and a secure fit straight out of the box.