technews · celestion cdv1-1757 compression driver the celestion, cdv1-1757 is a mass-notification...
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CELESTION CDV1-1757 COMPRESSION DRIVER The Celestion, CDV1-1757 is a mass-notification compression driver specifically de-signed for optimum performance across the critical vocal band. This makes the prod-uct ideal for voice applications where maximum clarity and intelligibility is demanded, with the capability to reach audiences over the greatest possible distance.
The CDV1-1757 features Celestion technology built-in, including a 1.75” (44mm) edgewound copper clad aluminium voice coil; tough, single piece polyimide diaphragm/surround; plus finite element analysis (FEA) optimised magnet assembly and phase plug. This enables the driver to deliver 120W continuous power handling (60Wrms, AES standard) and 107dB sensitivity. It features a next- generation proprietary Sound Castle™ diaphragm clamping system for superb reliability, even in the most demanding of applications.
“Pure vocal applications require a more application-specific approach to compression driver design,” says Celestion Head of Engineering, Paul Cork. “By taking a fresh look at one of our existing designs--modifying the phase plug and optimising the volume of the rear loading chamber --we were able to create a device that gave additional focus to the part of the frequency range where the voice sits. This led us to develop the CDV1-1757, a driver with a greater vocal output level together with enhanced clarity.”
A standard 1.38” (35mm) screw fitting on the CDV1-1757 provides maximum compatibility with a range of Celestion and third party horn flares.
CDV1-1757 TECH SPECS General Specifications• Power rating1 .................................60W• Continuous power rating2 ....... 120W• Nominal impedance ..................... 16Ω• Frequency range ........ 800-18000 Hz• Sensitivity2 ................................. 107dB• Recommended min. crossover
(12dB/oct) .................................. 800Hz• Voice coil diameter ...... 44mm/1.75in• Voice coil material Edgewound Copper
Clad Aluminium• Magnet type ...............................Ferrite• Diaphragm material .............Polyimide• Surround material ................Polyimide
Mounting Information• Width ............................. 120mm/4.7in• Depth ................................53mm/2.1in• Weight ................................ 2.3kg/5.1lb• Fitting: Screw (35mm, 1.38in dia)• Throat exit: 25mm/1in
Packed Dimensions & Weight• Single pack size W x D x H
140mm x 170mm x 70mm 5.5in x 6.7in x 2.8in
• Single pack weight ...............3kg/6.6lb
Compatible Horns• H1SC-9040, H1SC-8050
1. Tested for two hours on plane wave tube using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance.
2. Continuous Power Rating is defined as 3dB greater than the AES rating.
3. Measured on axis at 1W, 1m, using typical horn, in 2Π anechoic environment.
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