Manual

Table of contents

Description
Accessories
Specifications

4288 Directional Flex Headsets and Earsets

Combining the legendary sound of the 4088 Directional Capsule with the lightweight single earset system, the 4288 is ideal for both spoken word and vocal performance applications. It offers accurate and natural voice intelligibility and very high-SPL capabilities – users can both speak and sing into the mic with no hint of distortion.

Now available with CORE+ and MicroLock.

Accessories

DUA0532 Headset Clip and Strain Relief for Headset Microphone
DUA0591 Makeup Cover for 4088/4288 Headset Microphone
DUA0560/0566/0567/0568 Foam Windscreen for Miniature Microphones
DUA0574/0575/0576 Pop Screen for 4088 Headset Microphone

Specifications

Polar pattern

Frequency response graph

Directional pattern Cardioid

Principle of operation Pressure gradient

Cartridge type Pre-polarized condenser

Frequency response 20 Hz - 20 kHz

Effective frequency range, ±2 dB, Near field 2-3 cm (0.8 - 1.2 in) Near field 2-3 cm (0.8 - 1.2 in) 100 Hz - 20 kHz (4 - 6 dB soft boost at 15 kHz)

Sensitivity, nominal, ±3 dB at 1 kHz 6 mV/Pa; -44 dB re. 1 V/Pa

Equivalent noise level, A-weighted Typ. 26 dB(A) re. 20 µPa (max. 28 dB(A))

Equivalent noise level, ITU-R BS.468-4 Typ. 38 dB (max. 40 dB)

Distortion, THD < 0.5% 137 dB SPL RMS, 140 dB SPL peak

Distortion, THD < 1% 139 dB SPL RMS, 142 dB SPL peak

Dynamic range Typ. 116 dB

Max. SPL, THD 10% 147 dB SPL peak

Rated output impedance From MicroLock: 30 - 40 Ω. From DAD9001: 100 Ω

Cable drive capability Up to 300 m (984 ft) with DAD9001 XLR Adapter

Output balance principle Signal balanced with DAD9001 XLR Adapter

Common mode rejection ratio (CMRR) > 60 dB from 50 Hz to 15 kHz with DAD9001 XLR Adapter

Power supply (for full performance) For wireless systems Min. 5 V - max. 10 V through DPA adapter
With DAD9001: P48 (Phantom Power). Will work from 12 V

Current consumption Typ. 1.5 mA (microphone). 3.5 mA with DAD9001 XLR Adapter

Connector MicroLock, TA4F Mini-XLR, 3-pin LEMO, Mini-Jack

Weight Single Ear: 10 g (0.35 oz)

Microphone diameter 5.4 mm (0.21 in)

Microphone length 12.7 mm (0.5 in)

Cable length 1.25 m (4.1 ft)

Cable diameter 1.6 mm (0.06 in)

Polarity Positively increasing sound pressure produces positive-going voltage at MicroLock pin (and pin 2 on DAD9001 XLR adapter)

Temperature range -40°C to 45°C (-40°F to 113°F)

Relative humidity (RH) Up to 90%

Description
Accessories
Specifications