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CANFORD LEVEL LIMITED HEADSETS

Canford has considerable experience in the design of headphone limiters and their use in the operational environment. Whilst virtually any headphone or headset can have a limiter fitted, using one of the seven types of standard multipurpose limiter circuits, this usually has to be in an in-line housing. By designing type-specific circuits for individual ear loudspeakers, these can be made small enough and appropriately shaped to enable them to be built into the earcup housing. Adding a limiter circuit to a headphone alters the input impedance.

For level limited headphones, see CANFORD LEVEL LIMITED HEADPHONES.

Beyerdynamic DT280 and DT290

Headsets with an extremely low visual profile for improved 'in-shot' appearance, and great comfort for extended wearing. Dual muff (DT290) or single muff (DT280), hypercardioid dynamic mic. 'XJ' suffix denotes supplied fitted with Neutrik NC3MX XLR 3-pin male for mic and NPC3C 3-pole A-gauge jack. 'XLR5M' suffix denotes supplied with Neutrik NC5MXX 5-pin male (mic pins 1 & 2, common pin 3, ear left pin 4, ear right pin 5).

Beyerdynamic DT297PV

As DT290 but with cardioid pattern condenser mic. Supplied fitted with Neutrik NC3MX XLR 3-pin male for mic and NPC3C 3-pole A-gauge jack.

Beyerdynamic DT109

The closed back DT109 headsets have 400 ohm capsules, and a 200 ohm dynamic microphone. Units are available in the black shell version, with distinctive marking to distinguish them from standard non-protected versions. Limiting level is fixed at 93dBA (note 1). As with in-line limiters, each headphone is individually calibrated. Standard connector options are available, and because the limiter is within the earshell, it is possible to use spare or replacement leads, as for standard versions. Due to the method of construction, it is not possible for replacement ear loudspeakers to be user-fitted in these types, units requiring repair must be returned to Canford. For the same reason, replacement limited ear loudspeaker units are not available as spare parts.

The DT109 level-limited headsets are available in four versions - two terminated, one unterminated and one without cable (XLR wiring is compatible with Tecpro and RTS intercom systems, see Tecpro Communication System - Headsets product group for details of the wiring conventions):

54-341 Straight cable, wired mono, terminated with XLR 4-pin female
54-342 Straight cable, wired stereo, terminated with XLR 5-pin female
54-343 Straight cable, unterminated
54-340 Without cable (for users requiring to use coiled cables)

Beyerdynamic DT394

Closed ear design optimised for interpreting applications. Type DT394.MCS is fitted with an 8-pin DIN connector for use with the Beyerdynamic MCS-D202 interpreter station.

Sennheiser HMD 26-II

This lightweight headset features a dynamic, hyper-cardioid, 300ohm microphone with a response of 40Hz-16kHz. The closed-ear, supra-aural, headsets are designed for use in TV and radio broadcast applications, with high maximum SPL and high wearing comfort, in combination with a good noise attenuation and a frequency response of 20Hz-18kHz. The flexible gooseneck microphone boom, which can be used either on the left or right-hand side, is muted when the boom position is upright.

Sennheiser HMD 46-31

Sennheiser HMD 46-31 headsets have a dynamic microphone with noise compensation and a frequency response up to 12kHz. Designed for use in air traffic control applications, these lightweight headsets have high soft ear pads for high wearing comfort.

Sennheiser HME 26-II

The HME 26-II have an omnidirectional, electret condenser microphone, with a response up to 20kHz. Designed for use in TV and radio broadcast applications, they have high maximum SPL and high wearing comfort, in combination with a good noise attenuation and a frequency response of 20Hz-18kHz. The boom arm can be used either on the left or right-hand side and is muted when in an upright position.

Notes

1) The quoted limit level of 93dBA, 88dBA and 83dBA is for measurement using dummy head (or mannequin) systems. For measurements using flat plate calibrators the level will differ. Health and Safety authorities are more inclined to use the dummy head type measurement.

Spares

Certain ear loudspeakers and cables are listed as spares in a group. For further information, see CANFORD LEVEL LIMITED HEADPHONES AND HEADSETS Spare parts.

  Description Price (£) Add to basket
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CANFORD LEVEL LIMITED HEADSET DT280XJ 88dBA, wired mono, XLR 3/M and 3-pole A-gauge plug   Stock code: 54-4068
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£385.00
CANFORD LEVEL LIMITED HEADSET DT290XJ 88dBA, wired stereo, XLR 3/M and 3-pole A-gauge plug   Stock code: 54-4066
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£465.00
CANFORD LEVEL LIMITED HEADSET DT290XLR5M 88dBA, wired stereo, XLR 5/M   Stock code: 54-4070
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£465.00
CANFORD LEVEL LIMITED HEADSET DT297PV 88dBA, wired stereo, XLR 3/M and 3-pole A-gauge plug   Stock code: 54-4069
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£495.00
CANFORD LEVEL LIMITED HEADSET DT297PV 88dBA, wired stereo, coiled cable, XLR 3/M, 3-pole Agauge plug   Stock code: 54-4080
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£500.00
CANFORD LEVEL LIMITED HEADSET HMD46-31 88dBA, wired mono, coiled cable, XLR 4/F   Stock code: 54-4088
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£500.00
CANFORD LEVEL LIMITED HEADSET HMD46-31 88dBA, wired mono, straight cable, XLR 4/F   Stock code: 54-4087
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£500.00
CANFORD LEVEL LIMITED HEADSET DT109 93dBA, wired mono, with XLR 4-pin female   Stock code: 54-341
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£325.00
CANFORD LEVEL LIMITED HEADSET DT109 93dBA, wired stereo, with XLR 5-pin female   Stock code: 54-342
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£325.00
CANFORD LEVEL LIMITED HEADSET DT109 93dBA, unterminated   Stock code: 54-343
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£325.00
CANFORD LEVEL LIMITED HEADSET DT109 93dBA, without cable   Stock code: 54-340
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£315.00
CANFORD LEVEL LIMITED HEADSET DT394.MCS 93dBA, 8-pin DIN plug   Stock code: 54-338
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£465.00