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-   -   LED or VU DB display meter (http://www.wavemusic.com/community/showthread.php?t=13727)

in2deep 06-11-2013 01:48 AM

LED or VU DB display meter
Hey peeps,

Can any body recommend an accurate LED or VU display meter to suit a Urei 1620 setup? I am wanting a meter to review while recording to streamline the volume. I hear the "american audio active DBM" unit is not very accurate. Unit also needs to be 19" rack mountable. What do you think?

Laurin 06-11-2013 03:15 PM


DSA.audio 06-12-2013 12:09 AM


Originally Posted by DSA.audio

I admit to buying used.

herbalpudding 06-12-2013 09:16 AM

I use a vintage Furman VU-40 but have never used it for recording, only live metering.

nitred 06-12-2013 07:54 PM

The American Audio meter is plenty accurate if it's properly calibrated. It's suck if you go with the "looks about right" method.

BTW- You can buy Dorroughs pretty cheap on Ebay.

in2deep 06-17-2013 06:44 AM

Thanks for all your responses guys.

In the end I decided to go with the American Audio for a two reasons...

1. Has XLR/RCA input and outputs
2. It's as cheap as buying five new 12" records

Just hope it's not as sensitive on the adjustments dials as the "Technical Pro db-B28" unit is. This unit is unusable in my opinion.

Pete54 06-19-2013 03:51 AM

What is the best way to calibrate the American Audio db meter?

in2deep 06-19-2013 06:51 AM

I think the best way to calibrate the unit is to run a signal into a recoding device and compare the signal going in there with the LED meter. If that makes sense?!

DSA.audio 06-20-2013 02:24 PM


Originally Posted by Pete54
What is the best way to calibrate the American Audio db meter?

I would say, determine the optimum input levels on your recording device,
and set the meters leds to provide visual indication when approaching the level that would overload your recording device...

which is basically the same as the advice from in2deep above

Richi 06-20-2013 08:52 PM

They chose an odd scale for this unit, it looks more like a digital scale with 0dBFS being the top. Most analogue VU meters will go beyond 0dB, so not sure what this unit is doing.

The normal procedure for calibrating a meter is to use a reference voltage, the reference would usually be a tone of say 1khz and with a voltage of 0.775v. You would then measure the voltage at the output and trim the VU meter accordingly.

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