LA240 Loop amplifier only - DC Lead

The LA240 Loop Amplifier 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.  This particular model comes with a DC only connection for use in 12-24 DC power supply situations such as on Buses.

This is the amplifier only and comes mains power supply, no other connecting leads or cable are supplied.

With no direct connection between the user and a TV or Audio equipment the user is able to move freely within the looped area and listen comfortably to a TV or audio equipment without the distractions of normal listening. 

The LA240 Loop Amplifier 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 LA240 Loop amplifier 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.  

Loop cable is placed around 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. 

A Loop Pad is an alternative to loop cable and is used to create a localised or portable system to avoid interference with other systems or where confidentiality is required. 

• Optical and Coaxial digital audio input
• Separate Mains power supply allowing use by DC inputs from 12-24V, one version covers all markets
• Memory of control settings allowing remote power switching
• Digital Rotary Volume and Tone controls with LED indication
• Source selection of all inputs from front panel, mixing of inputs is possible.
• Increased output current 3A RMS and 40m Loop cable coverage up to 70m2
• Loop Level Indicator
• Priority Function Control
• Automatic Gain Control
• On/Off Mains Switch
• Blue LED Function Indicators
• Red LED Level Indicator
• 2 Microphone Inputs
• 3 Line inputs

Power Supply:

• 18V 1.5A Power Supply 
• 12-24V DC 2A External Supply

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. 3.5mm mono jack plug. DC powered 5V for electret microphones
• 2x Aux In Left/Right line inputs. Phono/RCA sockets. For direct connection to a TV sound output or other audio source via SCART or other suitable socket.

Output connections:

• Push grip connectors for loop cable or loop pad (Labelled: Loop Cable). Loop will give full output with loop resistance between 0.5 and 1.5 Ohms.
• 3.5mm stereo jack for headphones (Phones) 8-60 Ohms

Loop output:

• 3.0A output current @ 100-5KHz. Meets BS EN60118-4:2006 for a loop not exceeding 6.5m (20ft) in width . Suitable for areas up to 70m2

Loop Cable:

• Single turn loop cable. System supplied with 40m (130ft) 24/0.2mm (0.75mm2) single core PVC insulated cable. Min cable length 11m = 0.5 Ohms

Indicators:

• Red & Blue LED's

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