Just wanted to take a minute to describe some of the differences between the AD-1 Amplifier Dyno and the AMM-1 Audio Multimeter
The AD-1 Amplifier Dyno can do these things that the AMM-1 cannot do:
1. Measure Amplifier Output into a purely resistive load bank
2. Measure Amplifier Output until 1.0% THD is reached
3. Measure Amplifier Output into 10 different load impedances with the touch of a button
4. Measure Amplifier Dynamic Power Output (IEC-202 Standard for headroom)
5. Capture the exact B+ Voltage that was seen at the amplifier at the moment the last power reading was made
6. Two DD-1+ built in.
7. Measure amplifier output in car using resistive load bank vs your speakers, this provides VERY consistent measurements so the effects from changing things like a better B+ power cable, better ground, better battery etc can be easily and accurately measured
This is the exact type of testing the the factories use when manufacturing the amplifiers, and meet CEA standards. They are very defined tests with strict rules.
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The AMM-1 Audio Multimeter can do these things that the AD-1 cannot do:
1. Measure amplifier power into your speaker load, both apparent power (VA) and true power (Watts)
2. Measure impedance of your speaker load at any freq from 20Hz - 1kHz
3. Measure the current vs voltage phase shift of a reactive load (Power Factor)
4. Measure the DC Voltages like a multimeter
5. Super fast DC Min/Max for measuring drops and peaks of a DC voltage
6. Measure the Power CONSUMPTION of AC powered devices, like microwaves and light bulbs for example
7. Find the tuning freq of your subwoofer box, box rise and such
That is a short summary, I'll be checking when I can to answer any technical questions about the product.
Thanks!
Tony D