Sennheiser HSP4 Cardioid

High-quality permanently polarized condenser headmic with cardioid pick-up pattern, designed for professional "hands-free" applications. The adjustable neckband is visually unobtrusive and very comfortable to wear. The twelve available HSP 4 variants differ in color, size and connector.

For wireless applications, the headmic can be used with different Sennheiser bodypack transmitters, depending on the connection cable (see "Variants"). For wired applications, the headmic can be used with the MZA 900 P / MZA 900 P-4 phantom power adapter.

New:
The HSP 4 is now available in a revised version with a new attachment clip fort he microphone boom. The new clip has a very rugged, closable design, providing an extremely secure fit of the microphone boom.
HSP neckbands equipped with the previous attachment clips can be retrofitted with the new ones which are available as spare parts.

Technical Data:

Transducer principle (Microphone)    pre-polarised condenser microphone
Frequency response    40 - 20 000 Hz
Cable length    1,6 m Microphone
Weight    9,2 g
Diameter    8,4 mm
2,4 mm
Pick-up pattern    cardioid
Sensitivity in free field, no load (1kHz)    4 mV/Pa
Nominal impedance    1000 Ω
Min. terminating impedance    4700 Ω
Equivalent noise level    37 dB(A)
Maximum sound pressure level (passive)    150 dB
Current consumption    ca. 250 µA
Operating voltage (stand alone)    4,5 - 15 V