There are lots of amplifiers, both vintage and contemporary, that have no display of audio power output.
This is an accessory to solve that problem.
Why would you want one?
They look great, adds some visual perception of that beautiful music you are listening to
They can be useful to judge the amplifier peak power and ensure this power level is below the capabilities of the connected speakers.
Tandy Realistic Audio Power Meter
Model: APM-500
Tandy: 42-2107
Made In Korea for Tandy Corporation USA
Ranges 0 - 2 Watts OR 0 - 200 Watts (user selectable)
Displays both the left and right channels - useful to check the audio balance
Power output is displayed with 7 separate red LED's - each LED is indicating approximately 3dB increase over the LED before it.
Intended for use with 8 Ohm impedance loudspeaker systems but the user manual does have a chart so that conversions of indicated power can be made for other speaker impedances, often 4 Ohm is used in PA sound systems for example.
Entirely plastic case except for the metal rear panel
This results in a compact, light unit which is easy to place just about anywhere around the audio system.
Easy to install
Australian model, powered by our standard 240V 50Hz supply (just plug into the wall socket)
User Manual will be supplied - this not only gives the specifications and set up instructions but even the complete circuit diagram.
COSMETIC CONDITION:
Excellent, very clean and no damage to the case or front/rear panels
Speaker connections are via push-on connectors, excellent condition.
TESTING:
Powers on fine (green LED in the centre comes on - no red LEDs)
Connected to my NAD 7150 and I was easily able to get a good indication of audio power on both the 2 Watt and 200 Watt range (both channels)
