| Products > Test Equipment |
| Dual channel multimeter or another option? |
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| 807:
Do you need to measure absolute values, or do you need to just align the left & right channels? You say in your first post that you align and calibrate. I assume that because you are using an audio interface connected to your computer, that absolute values aren't that important? Can you explain a bit more how you do this. Do you have a test tape with a tone recorded on it. Or do you just play whatever is on the tape? If it's purely for L & R alignment, then perhaps something as simple as a cheap LED VU module might be OK for your requirement? |
| BeBuLamar:
--- Quote from: Stray Electron on December 08, 2022, 12:19:10 am --- Fluke model 45. I don't know if they still make them or not but they've been around a while and I'm sure you can find one on E-Greed. Like most Fluke meters, it's a very good meter and not a hunk of junk. https://www.tequipment.net/Fluke45.html#description --- End quote --- The Fluke 45 doesn't work for what the OP wanted. It can measure 2 things at the same time like voltage and frequency. It can also measure current and voltage (by switching back and forth between the 2 functions automatically) but it can't measure 2 voltages at the same time. |
| HKJ:
One way to balance tow signals is to feed them the same input signal and then connect a DMM between the two hot output terminals. Adjust until minimum on DMM and they balance. If the adjustment is two separate pots, then first adjust one to the correct level, then connect the meter between the outputs and adjust the other to minimum on the DMM. |
| thared33:
The oscilloscope subtract trick is cool, but it would be more beneficial to see voltages. I both need to balance L/R channels and also keep an eye on input/output levels. Seeing two channels at the same time is a thing of convenience. It isn't that I can't do what i need with a single channel multimeter, it's just easier and faster with a dual channel one. Actually, I could just keep using my computer for everything and not worry about this at all; but a 2-channel DMM is MUCH easier to move around than a computer/audio interface or a DSO (or a big millivoltmeter). Basically, I need a big dumb portable millivoltmeter that fits into my hands. A 2-channel DMM fits this perfectly. Can you guys recommend something like the Prova 903, but older/cheaper/used? |
| BeBuLamar:
You want some thing like the Leader LMV 186A. I don't see any modern version of the meter. https://www.ebay.com/itm/374371542600 |
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