top of page
ยี่ห้อ : TOA
รุ่น : TOA AT-4120
ราคา: 2,420 บาท
พิเศษ : 1,936 บาท
TOA AT-4120 Wall attenuator Volume control

- Input Capacity 120 Watt
- 8 Steps ( 0dB, -3dB, -9dB, -12dB, -15dB, -18dB, OFF )

TOA AT-4120 Wall attenuator Volume control โวลุ่ม ปรับระดับเสียง เพิ่ม-ลด ระดับเสียง ติดผนัง  Input Capacity 120 Watt

AT-4000 Series Attenuators
Designed with ergonomics of the human hand in mind, AT-4000 Series Attenuators’ control knob comes in a size that provides comfortable grip and excellent control with every turn. Consisting of 8 steps attenuation, the series is built to provide precision volume control with a difference of 3dB in every step. The built-in overriding relay feature allows emergency paging which is indicated by the LED light when activated.

AT-4000 Series Attenuators come in 4 different ratings - 12 watts, 30 watts, 60 watts and 120 watts.



  • 8-step attenuation level control (+/- 3dB)

  • Ergonomic control knob with better grip for easy turn

  • 24VDC overriding relay with red LED indicator

  • Terminal block for thicker diameter cable

  • Clip-on face plate

  • 2 / 3 / 4 wire system

  • Surface or flush mount

  • Glossy finish in white



Input Capacity120W

Attenuation8 steps (0dB, -3dB,-9dB, -12dB,-15dB, -18dB, OFF)

Override IndicatorRed LED (4 wire connection)

Override Voltage24V, 11mA DC (4 wire connection)

Dimension86 (W) x 86 (H) x 51 (D) mm.

Weight0.48 kg.

ColorWhite (RAL 9016 or equivalent)

TerminalScrew type x 5 (Terminal)

Usable CableCable range 22 - 14 AWG

FinishKnob / Panel / Plate; ABS resin, white. Plate; Surface treated steel plate.

bottom of page