Low cost, easy to build, highly accurate: an essential piece of test equipment! If you're involved in audio - at any level - you really must have an audio millivoltmeter in your test gear arsenal. Once you've used one, you'll wonder how you ever managed without it. It's useful for setting up and calibrating audio systems, doing performance measurements and troubleshooting audio equipment, and much more. This one doesn't just measure low-level signals. It provides high-resolution measurements of balanced or unbalanced audio signals from below -85dBV (56μV RMS) to above +35dBV (60V RMS)! It's easy to build and has automatic range switching and can log data to a PC.
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