Volume Attenuator

VAT Series

- 10-step volume attenuator with OFF position for 100V/70.7V systems
- Offering precise level control and excellent frequency response
- Ideal for various environments—from noisy warehouses to quiet offices

The VAT is a volume attenuator equipped with a 10-step attenuation plus OFF selector, it offers precise level control and excellent frequency response to the speaker lines, making it fit in the environment whether in a noisy warehouse or a quiet office.

The VAT supports both standard two-wire and three-wire connection. The three-wire installation is capable to increase/decrease the volume of background music remotely during BGM broadcasting, and the volume will not be attenuated during EVAC message broadcasting. In addition, by installing the VA-EOL at the end of speaker lines and SL-SENSOR2/SL-SENSOR4 on the zone board of BTQ-VM/SG/SL unit, the system can quickly indicate which speaker line is open/short circuit in every branch. The VAT is applicable for 100/70.7 Volt application system.

Models:

VAT-35E
VAT-120E
VAT-200E

Electrical

Input capacity: 100 volt/70.7 volt line

VAT-35E/U: 35W
VAT-120E/U: 120W
VAT-200E/U: 200W

Transformer output steps @ 100 volt line: 100/70.7/50/35.3/25/17.7/12.5/8.8/6.2/4.4/OFF
Transformer output steps @ 70.7 volt line: 70.7/50/35.3/25/17.7/12.5/8.8/6.2/4.4/3.1/OFF
Attenuation per step: 3 dB
Total attenuation: 27 dB
Attenuation positions: 10 plus OFF
Insertion loss

VAT-35E/U: <1 dB
VAT-120E/U: <1 dB
VAT-200E/U: <1 dB