Sennheiser MZA 900 P-4 Microphone Preamplifier For Condenser Mics

The Sennheiser MZA 900 P-4 is a compact phantom-powered (10-52V) preamplifier adapter for miniature condenser mics with Lemo 3-P input to XLR-3M output. 20 Hz–20 kHz flat response, 100 Ω balanced impedance, 60 g—ideal for direct connection to mixers or cameras.

The Sennheiser MZA 900 P-4 is a professional inline microphone preamplifier and adapter designed to connect miniature condenser microphones (e.g., MKE series with Lemo 3-P) directly to mixing consoles, cameras, or recorders requiring standard XLR inputs and phantom power. It provides clean, transparent amplification across a full 20 Hz–20 kHz bandwidth (±1 dB) with symmetrical 100 Ω output impedance for low-noise, high-fidelity signal transmission. Powered by 10–52 V phantom supply, it eliminates the need for bodypacks in wired setups, making it perfect for broadcast, film, theater, and studio applications where discreet, high-quality audio is essential. Rugged yet lightweight at 60 g, the MZA 900 P-4 ensures reliable performance in demanding environments.

Key Features:

• Converts Lemo 3-P miniature mic input to balanced XLR-3M output
• Phantom power pass-through (10–52 V) for condenser capsules
• Flat frequency response (20 Hz–20 kHz, –1 dB) for uncolored sound
• Low output impedance (100 Ω symmetrical) for long cable runs
• Compact, durable inline design—only 60 g
• Ideal for MKE 1, MKE 2, MKE Platinum, and compatible lavalier mics
• No battery required—fully phantom-powered