Communication Technology LVC-025 volume control

LVC-025 volume control on single plate

Communication Techology LVC-025 25w volume control on UK single gang plate.

Picture shows volume controls in the LVC series for illustration only.

LVC series of loudspeaker circuit volume controls

Series of volume controls 100 volt with override.

Designed for use with loudspeaker loads up to 25W, 100W or 300W, these volume controls will operate on 50, 70, 100V line systems. The LVC series have been designed to provide excellent frequency response, using uniquely wound auto-transformers for maximum efficiency.

When operating with remote relay override, paging levels can be pre-set so that in noisy warehouses or a quiet office, paging volumes can match the ambient noise conditions. Versions are available with a paging on/off switch, for discussion or conference areas, so that meetings need not be disturbed by unwanted paging announcements. As standard, white plastic front panels moulded from ABS material, making them virtually unbreakable, are included.

'Bare bones' P.C. cards, without front panel but including control knob and indexing disc, for OEM front panels are available, see order codes. BS front panels can be hot foil stamped with supplier, installer, or venue name. Various metal front panel options are also available at extra cost. A programme selector switch with up to 10 channel positions is available to include on a double gang front panel with 25W control. The installer may also use these for the construction of purpose-designed in-room entertainment panels or as part of an engineered rack system. A range of 6-way programme selectors integrated with low power volume controls is also available.

Features

Collet fixing knobs
Permanent, push-on wiring connectors at one end of the PC card, for ease of wiring
Proven by long term use to be fully reliable, guaranteed for 24 months from date of dispatch
Easily adjustable, colour coded, on-board header receptacles for on-board selection
Detailed diagrammatic instructions make preparation and installation easy

Models:

LVC 025 25W including UK front panel, single switchplate
LVC 100 100W including UK front panel, double switchplate
LVC 300 300W including UK front panel to mate with MK 5268 ALM flush backbox
LVC 300/SM 300W mounted in surface fixing backbox
LVC 025/PC 25W 'bare bones' p.c. only - Includes Knob & graticule
LVC 100/PC 100W 'bare bones' p.c. only - Includes Knob & graticule
LVC 300/PC 300W 'bare bone' p.c. only - Includes Knob & graticule

Rated input:
LVC 025: 25w, 100v
LVC 100: 100w,100v
LVC 300: 300w, 100v

Maximum loads:
LVC 025: 30w
LVC 100: 120w
LVC 300: 330w

Dimensions:

LVC 025/PC: 48 deep x 69 long x 38 wide
LVC 100/PC: 46 deep x 95 long x 38 wide
LVC 300/PC: 60 deep x 140 long x 80 wide

Specification LVC-100

Rated input 100W, 100V
Maximum Loads 120W
Maximum input voltage 100V, RMS 140V Peak (intended for use on 50, 70, 100V line distribution systems)
Minimum nominal input voltage 50V
Control attenuation 60dB, in 12 steps including off
Paging attenuation 12dB, in 4 steps (relay function only)
Operating frequency range 150Hz through 15KHz
Overide relay 24DC will operate over the voltage range 75% to 120%
Relay consumption 400mW
Terminations Push-on screw terminations, fixing to PCB header pins. Maximum cable size 2.5mm²; stripping length 6mm
Colour front panels Ivory White; knob and index: Grey; knob collet fixing
Circuit cards - bare bones - 48(D) x 69(L) x 38(W) mm
Front panels 100W UK version 146 x 86 mm
Suitable UK back boxes: Surface mount: Legrand 80850; Flush mount Appleby SB635

Page last updated:  Tuesday 13 May 2008

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