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Williams Sound Small Room Loop Amplifier System

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SKU: 2273
Members Pay: $385
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Additional Info

The PLA 240 is able to supply living quarters or small conference rooms up to approx. 540 sq. ft. (50 sq.m) with inductive audio signals via the loop connected. The system includes 120 ft. (37 m) induction loop wire. In addition to settings for basic volume and tone, the digitally controlled induction loop amplifier uses Automatic Gain Control to stabilize the volume for fluctuating input levels. The device is able to accommodate the connection of up to 5 audio sources. The desired source can be selected at the touch of a button.

Additional information

Weight 24 oz
T Coil

Hearing Loop – T coil

Assisted listening device

Assisted listening device


The PLA 240 Loop System provides a practical solution for hearing aid users to listen more easily to their TV or audio equipment via the “T” or “Loop “ program of their hearing aid. With no direct connection between the user and a TV or Audio equipment the user is able to move freely with the looped area and listen comfortably to a TV or audio equipment without the distractions of normal listening. The Loop System is used in conjunction with a hearing aid with a “T” or “Loop” program found on many ‘behind the ear’ or ‘in the ear’ hearing aids. The loop system picks up the sound from a TV via a direct connection or microphone and feeds it to the amplifier. The sound is then passed to a loop of wire around the listening area, which in turn transmits the sound inductively (magnetic sound waves) to a hearing aid with the loop facility. The user may then adjust the loop volume or tone to suit their own hearing preference without affecting others. The Loop System is supplied with loop wire. The loop wire is placed around the inside perimeter of a room that you want to listen in The sound can be heard anywhere inside the “looped” area and sometimes just outside the loop as well.

Loop Amplifier System Features:

• Magnetic signal couples directly to hearing aids equipped with telecoils (T-coils)

• Headphone output for monitoring audio output

• Can be used with optional loop receivers

• Mic, line and digital inputs

• Automatic gain control

• Volume and tone controls

• Loop status light

• Compact and lightweight


Dimensions: 7” W x 1-5/8” H* x 6” D** (17.8 cm W x 2.86 cm H* x 15.24 cm D**) *

Height without rubber feet. Rubber feet add 1/8” (0.32 cm) **Depth includes front controls and rear jacks

Weight: Shipping weight (boxed with accessories): 4.3 lb ( kg)

Unit (amplifier) weight: 1.6 lb ( kg)

Color: Silver

Power: Unit

Input: 12-24 VDC, 2 A Power Supply Output: 18 V, 1.5 A

Controls: Rotary Volume Control, Rotary Tone Control On/Off Power Switch Source Selector Switches Priority Switch Input

Connections: Digital Audio TOSlink/Coaxial 2 x Microphone inputs. 3.5 mm mono jack plug. DC powered 5 V for Electret Microphones. 2 x Aux In Left/Right Line Inputs. Phono/RCA jacks. For direct connection to a TV sound output or other sound source.

Output Connections: Push grip connectors for loop cable (labelled: “loop cable”). Loop will give full output with loop resistance between 0.5 and 1.5 ohms. Loop output: 3.0 A output current @ 100 Hz – 5 KHz. Meets BS EN60118-4: 2006 for a loop not exceeding 6.5 m (20 ft) in width. Suitable for areas up to 540 sq. ft (50 m2) .

Loop cable: Single turn loop cable. System supplied with 40 m (130 ft) of 24 ga/0.2 mm (0.75 mm2) single core PVC insulated cable. Min cable length 36 ft (11 m) = 0.5 ohms.

Indicators: Blue/Red LEDs Warranty: 2 years

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