Atenuator

VCT Series

Speaker Volume Control

  • 100V line attenuators
  • 2 power are available: 25 W and 80 W
  • Volume restoration feature (VCT25R / VCT80R)


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Speaker Volume Control
Speaker Volume Control
Speaker Volume Control

DESCRIPTION

The VCT range of remote audio volume controls offer high quality performance and style. Each unit features a 10-step attenuation plus OFF with non-stop selector giving a smooth variation in output level. Available in 25 watt and 80 watt versions, these volume controls offer excellent frequency response and efficiency.

The VCT25R and VCT80R versions include volume restoration and are suitable for either the three wire, amplifier derived volume restoration or the more common, 2 wire relay controlled volume restoration.

Volume restoration levels can be pre-set. When the restoration relay is activated the maximum volume can either be left at full volume or reduced by either -3dB or -6dB. This facility allows restored paging levels to be adjusted to suit the environment, in a noisy warehouse or a quiet office.


FEATURES

Models:

  • VCT25
  • VCT25R
  • VCT80
  • VCT80R


SPECIFICATIONS

Electrical

Rated power 100 volt/70.7 volt line, Watts: 25 /12
Transformer output steps@ 100 volt line, Volts: 
100/70.7/50/35.36/25/17.68/12.50/8.84/6.25/4.42/3.12/OFF
Transformer output steps@ 70.7 volt line, Volts:
70.7/50/35.36/25/17.68/12.50/8.84/6.25/4.42/3.12/2.21/OFF
Attenuation Per Step, dB: 3
Total Attenuation, dB: 30
Attenuation Positions: 10 plus OFF
Insertion Loss, dB: 0.4
Effective frequency range @1k Hz-1dB, Hz: 40 - 20,000

IP-Rating: n/a
Max/Min Amb Temp: n/a
Relative Humidity: n/a

Mechanical

Dimensions, front & depth, mm: 84x84x54
Net weight, kg Surface: 0.20
Colour/Finish: White
Material: ABS Moulded
Mounting: Surface

Electrical

Rated power 100 volt/70.7 volt line, Watts: 25 /12
Transformer output steps@ 100 volt line, Volts: 
100/70.7/50/35.36/25/17.68/12.50/8.84/6.25/4.42/3.12/OFF
Transformer output steps@ 70.7 volt line, Volts:
70.7/50/35.36/25/17.68/12.50/8.84/6.25/4.42/3.12/2.21/OFF
Attenuation Per Step, dB: 3
Total Attenuation, dB: 30
Attenuation Positions: 10 plus OFF
Insertion Loss, dB: 0.4
Effective frequency range @1k Hz-1dB, Hz: 40 - 20,000

IP-Rating: n/a
Max/Min Amb Temp: n/a
Relative Humidity: n/a

Mechanical

Dimensions, front & depth, mm: 84x84x54
Net weight, kg Surface: 0.22
Colour/Finish: White
Material: ABS Moulded
Mounting: Surface

Electrical

Rated power 100 volt/70.7 volt line, Watts: 80/40
Transformer output steps@ 100 volt line, Volts: 
100/70.7/50/35.36/25/17.68/12.50/8.84/6.25/4.42/3.12/OFF
Transformer output steps@ 70.7 volt line, Volts:
70.7/50/35.36/25/17.68/12.50/8.84/6.25/4.42/3.12/2.21/OFF
Attenuation Per Step, dB: 3
Total Attenuation, dB: 30
Attenuation Positions: 10 plus OFF
Insertion Loss, dB: 0.6
Effective frequency range @1k Hz-1dB, Hz: 20 - 20,000

IP-Rating: n/a
Max/Min Amb Temp: n/a
Relative Humidity: n/a

Mechanical

Dimensions, front & depth, mm: 149x87x61
Net weight, kg Surface: 0.45
Colour/Finish: White
Material: ABS Moulded
Mounting: Surface

Electrical

Rated power 100 volt/70.7 volt line, Watts: 80/40
Transformer output steps@ 100 volt line, Volts: 
100/70.7/50/35.36/25/17.68/12.50/8.84/6.25/4.42/3.12/OFF
Transformer output steps@ 70.7 volt line, Volts:
70.7/50/35.36/25/17.68/12.50/8.84/6.25/4.42/3.12/2.21/OFF
Attenuation Per Step, dB: 3
Total Attenuation, dB: 30
Attenuation Positions: 10 plus OFF
Insertion Loss, dB: 0.6
Effective frequency range @1k Hz-1dB, Hz: 20 - 20,000

IP-Rating: n/a
Max/Min Amb Temp: n/a
Relative Humidity: n/a

Mechanical

Dimensions, front & depth, mm: 149x87x61
Net weight, kg Surface: 0.47
Colour/Finish: White
Material: ABS Moulded
Mounting: Surface

APPLICATIONS

Schools
Stores
Shopping malls
Hotels
Train stations
Universities
Industrial sites

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