The First digital selectable audio amp dyno dummy load for audio amplifier testing.  Proudly made in the  the USA. Use it with the SMD AMM-1 from D amore engineering or you can use a voltmeter and ammeter to calculate True amplifier output watts. The units are hand built in the USA and are not mass produced in a foreign country or assembly line.

HiFi Vector DL-14
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SMD amp dyno AD1 AD-1
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