Page 1

technical data

fax (0191)418 1001

CANFORD

BOUNDARY LAYER MICROPHONE

canford.co.uk

91-124 Canford flush mount boundary layer microphone This specialised electret based microphone is designed for fixed installations where unobtrusive pick-up of sound, from a wide range of angles, is required. Originally developed for interview recording in security and personnel applications, the Flush Mount Microphone can also find uses in paging systems where a projecting gooseneck microphone is not appropriate.

It mounts on to a standard, single-gang, box (to UK spec. TECHNICAL DATA SHEET BS1363). The black anodised plate has four small holes for sound transmission. Electrical connections are made via the rear-mounted screw terminals. The microphone has a balanced output and requires an external 48 volt phantom power supply

BOUNDARY LAYER MICROPHONE

91-124 CANFORD FLUSH MOUNT BOUNDARY LAYER MICROPHONE TECHNICAL SPECIFICATION

Sensitivity:

This specialised electret based microphone is designed for Frequency: fixed installations where unobtrusive pick-up of sound, from Output Impedance: a wide range of angles,Recommended is required. Originally developed for Load Impedance: interview recording in Pickup securityPattern: and personnel applications, the Flush Mount Microphone also find uses in paging Voltage can Requirement: systems where a projecting gooseneck Current Drain: microphone is not Max. Input Sound Pressure: appropriate. Dimensions:

It mounts on to a standard, single-gang, box (to UK spec. Weight: BS1363). The black anodised plate has four small holes for sound transmission. Electrical connections are made via

-75dB (ref 1V/ubar 1KHz 3V)

the rear-mounted screw terminals. The microphone has a 50 – 15KHz balanced output and requires an external 48 volt phantom 200 ohms power supply. Greater than 600 ohms Hemispherical 48 volts, phantom power (not supplied.) ACCESSORIES 5mA max 120dB SPL 49-578 Single-gang, mounting box, flush 85 x 85 x 20 (mm) 20-752 48-volt phantom power supply 60g 31-001 Installation type microphone cable

TECHNICAL SPECIFICATION Sensitivity:

-75dB (ref 1V/ubar 1KHz 3V) Accessories: (not supplied.) 49-578 Single-gang, mounting box, flush 20-752 48-volt phantom power supply Frequency: 50 – 15KHz 31-001 Installation type microphone cable Output Impedance: 200 ohms Recommended Load Impedance: Greater than 600 ohms Pickup Pattern: Hemispherical Voltage Requirement:

48 volts, phantom power

Current Drain:

5mA max

02-297(Issue 1) 03/03

Max. Input Sound Pressure:

120dB SPL

Dimensions:

85 x 85 x 20 (mm)

Weight: 60g

Canford Audio Limited. Crowther Road Washington,Tyne & Wear, NE38 0BW. UK

02-297 Issue 3

Profile for Canford Audio

02-297 BOUNDARY LAYER MICROPHONE  

02-297 This specialised electret based microphone is designed for fixed installations where unobtrusive pick-up of sound, from a wide rang...

02-297 BOUNDARY LAYER MICROPHONE  

02-297 This specialised electret based microphone is designed for fixed installations where unobtrusive pick-up of sound, from a wide rang...