Sennheiser HSP 4
        
General Description

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.

Features

•     Excellent feedback rejection
•     Microphone includes a detachable cap as integral wind/popshield
•     Individually adjustable to all head sizes
•     Neckband design keeps the microphone clear from shirt-collar or clothing
•     Twist-proof microphone boom (Ø 2.0 mm), can be attached to the left or right side
•     Microphone boom is adjustable in length and angle
•     Flexible gooseneck section
•     Connection cable can easily be interchanged
•     All metal parts coated in a physical vapour deposition process
•     Can also be used with the omni-directional HSP 2 boom microphone

Delivery Includes

•     Boom microphone
•     Neckband
•     Connection cable
•     Plastic transport case, foam-lined with cut-outs
•     Operating instructions

Technical Data

•     Pick-up pattern        cardioid
•     Frequency response        40...20 000 Hz
•     Nominal impedance        (@ 1 kHz) 1000 Ohm
•     Min. terminating impedance        4700 Ohm
•     Sensitivity in free field, no load (1kHz)        4 mV/Pa
•     Maximum sound pressure level (passiv)        150 dB
•     Equivalent noise level        37 dB(A)
•     Current consumption        ca. 250 µA
•     Operating voltage (stand alone)        4,5-15 V
•     Cable length        1,6 m
•     Diameter        8,4 mm boomarm
•     Diameter        2,4 mm boomarm
•     Weight        9,2 g (without cable)