The Sennheiser HSP 4 is a lightweight, modular cardioid condenser microphone with a headband designed for hands-free applications for singing and speech. It features an adjustable arm (2.0 mm diameter, flexible gooseneck), integrated windscreen/pop filter, and excellent feedback suppression. Available in black or beige with interchangeable cables for 3000/5000 or evolution wireless systems, it ensures comfortable and discreet wearing thanks to its all-metal construction with PVD coating and a sturdy carrying case.
The Sennheiser HSP 4 is a premium condenser headset microphone designed for professionals in broadcasting, theater, and presentations who require reliable, high-fidelity hands-free audio recording. It uses a permanently polarized platinum MKE capsule with a narrow cardioid characteristic (120° pickup at 1 kHz) for excellent speech intelligibility and off-axis sound suppression (>20 dB at 180°). Its ultra-light headband (beige or black, total weight <20 g) adjusts individually to head size using sliding clips and elastic straps, reproducing voice without distortion (20 Hz–20 kHz ±3 dB, sensitivity -46 dB re 1V/Pa). The modular design allows for left/right arm connection, length/angle adjustment (up to 135°), and easy cable replacement (snap-in, stripped/tinned wires or connectors for the 3000/5000/evolution wireless), with all metal parts protected by a PVD (physical vapor deposition) coating for corrosion resistance (tested in salt spray for 1000 hours). The integrated removable windscreen/pop filter (reduces plosives by 15 dB), while the flexible gooseneck maintains precise positioning without memory. Compatible with the HSP 2 omnidirectional microphone arm for greater versatility, including a hard carrying case. With excellent feedback suppression (>15 dB feedback margin) and low self-noise (24 dB-A), the HSP 4 delivers radio-quality sound in demanding live or recording situations.
Key features
- Lightweight headband: visually unobtrusive, comfortable for long-term wear, adjustable for all head sizes
- Cardioid platinum MKE capsule: Optimal speech intelligibility, 20 Hz–20 kHz response, -46 dB sensitivity
- Modular arm: 2.0 mm torsion-resistant, mountable left/right, flexible gooseneck for angle/length adjustment
- Integrated wind/pop protection: Removable cover reduces noise caused by explosive sounds/wind by 15 dB
- Replaceable cables: Snap-on design for wireless systems (3000/5000 series, evolution) or stripped wires
- PVD-coated metal parts: durable, corrosion-resistant construction
- Feedback suppression: Gain >15 dB before feedback, compatible with HSP 2 omni boom
- 1* modular cardioid condenser microphone
- Directional characteristic: cardioid
- Transducer type: permanently polarized condenser
- Frequency response: 20 Hz–20 kHz (±3 dB)
- Sensitivity: -46 dB re 1V/Pa (2 mV/Pa)
- Max. SPL: 150 dB
- Self-noise: 24 dB-A
- Arm diameter: 2.0 mm (torsion resistant)
- Cable: modular snap-on (lengths vary depending on connector; can be stripped/tinned)
- Connectors: For 3000/5000 series, evolution wireless, or without termination
- Power supply: Phantom 12–48 V DC (5 mA)
- Colors: black, beige
- Weight: <20 g (microphone only)
- Operating temperature: -10 °C to +50 °C
