sE Electronics DM1 - Active Inline Microphone Preamp (Black)

sE Electronics DM1 – Active Inline Microphone Preamp (Black)

The sE Electronics DM1 is an ultra-compact active inline preamp designed to deliver 28 dB of clean gain directly into your signal chain. With an extended frequency range of 10 Hz to 120 kHz (–0.3 dB), it preserves all the nuances of your microphone without adding coloration. Its metal chassis construction, measuring just 19 mm × 95.5 mm and weighing 80 g, makes it easy to mount close to the capsule, eliminating losses in long cable runs. Powered by 48 V phantom power, the DM1 delivers a maximum output level of 8.3 dBV (0.5% THD) and an output noise floor of just 9 µV (JIS-A), ensuring a studio-quality signal with exceptional signal-to-noise ratio.

Main features

• Gain: +28 dB (1 kΩ load) to boost dynamic and passive ribbon microphones.
• Frequency range: 10 Hz – 120,000 Hz (–0.3 dB) for absolute fidelity.
• Max output SPL: 8.3 dBV (0.5% THD) for powerful signal without distortion.
• Noise level: 9 µV (JIS-A) to capture even the lowest whisper.
• Input impedance: 135 Ω; Recommended load: > 1 kΩ.
• Power supply: Phantom 48 V IEC 61938; consumption 3.0 mA.
• Connectivity: 3-pin male and female XLR.
• Dimensions: Ø 19 mm × L 95.5 mm; Weight: 80 g.

Product benefits

• Installation close to the capsule: Minimizes wiring noise and signal loss.
• Ultra-compact design: Fits dynamic and ribbon microphones without adding weight or bulk.
• Ultra-clean sound: Low-noise circuitry and wide dynamic range.
• Full compatibility: Works with any passive microphone that does not require phantom power.

Use cases

• Reinforcement of dynamic and ribbon microphones for live and studio performances.
• Portable recordings with minimal signal chains.
• Broadcast applications and transmissions where every millivolt counts.
• DIY solutions for recording directly onto field cameras or recorders.

Frequently Asked Questions

• Does it require phantom power? Yes, 48V phantom power to power its active preamp.
• Can I use it with condenser microphones? No, it's optimized for dynamic and ribbon microphones without a built-in phantom power.
• How do I connect it? Insert the DM1 inline between the microphone and preamp using XLR cables.
• Does it add color to the sound? No; its flat response guarantees complete transparency.

Description for projects

sE Electronics DM1 active in-line preamp, +28 dB gain (1 kΩ load), 10 Hz–120 kHz, max. output level 8.3 dBV, noise 9 µV, phantom power 48 V, impedance 135 Ω, 3-pin XLR, Ø 19×95.5 mm, 80 g.