VU Meter 2x Panel VU Meter Warm Back Light Recording & Audio Level Amp with Driver Board

This worked just as intended. The meters can be properly zeroed with the screw on the front. The control board I received allows for calibrating the meters to a known signal. It also allows the brightness of the backlights to be adjusted. The circuit board itself was of good quality, parts were properly aligned, and the flow solder job looked clean and professional. The board also has a small surface mounted LED as a power indicator. This was a nice detail. Overall this package is of good quality and it worked great for my project.To address some of the complaints about this unit. Yes the wires provided are a fine gauge (24 AWG to be specific). You need to handle them carefully, however this is no different from any other modern electronics. On the plus side, all the wiring harnesses are of ample length (over 10"). Using a good quality wire stripper and tinning the exposed wire ends helps tremendously. I had no wiring problems. There were no instructions with the unit. However all the circuit board connectors were clearly and properly marked. A quick reference to the internet was enough to confirm which meter connections were for power and which for signal. Polarity was properly marked on the back of the meters. The only confusing point on the board is that the inputs are labeled "L" and "R" (with a common ground reference) but the meters are labeled "VU1" and "VU2". However, a quick check with a signal confirmed that "L" and "VU1" go together while "R" and "VU2" go together. The meters supplied with this package are standard 34mm (1.34") diameter VU meters. Yes they are on the small side but at this price point the larger 52mm (2") standard meters are probably out of the question.Overall I was very pleased with both the quality and functionality of this package. It is a great value for the money.

Should come with some instructions on how to use the VR’s, even if it’s just a small piece of paper showing a website.

I am satisfied. Will do one more!

This product is great! Very easy to make all of the connections and get the meters moving! The only little problem is that the quality of the hookup wire provided is cheap and brittle. After you make your solder connections to the terminals on the back of the meters, any small amount of bending can cause the wires to easily break away. This can be easily repaired by stripping back a little more wire, tinning it, and making a new joint. I then added a big dab of hot glue to provide some strength and strain relief to the joints and that pretty much fixed it. There is a small 10k screw pot on the PCB for dimming the VU lights and two separate 10k screw pots for calibrating the left and right meters independently.The diameter of the meters circular section is 1 21/64" so a good hole size for your project panel would be 1 11/32”. The larger but and more common 1 3/8" hole size is, unfortunately, a hair too big.Overall, I love this item and would definitely buy it again! At this price, it can’t be beaten!

Really good kit, decent parts, but absolutely zero instructions, what I was able to find make little to no sense at all and tend to leave out critical steps in order to finish.

The media could not be loaded. I added these meters to the preamp output section of my DIY stereo tube amplifier. I powered them with 15v (off of the 16v heater supply).At first, I had connected the inputs (for the signal to drive the meters) directly after the volume pots; line level. However, this did not provide enough signal. So, I took the signals at the input to the amps final stage and it worked perfectly.No noise or static is introduced but a very slight signal drop is noticed (but the sound is not otherwise effected).My drive board also came with a pot to adjust the brightness of the meters.Total draw is about 10ma, measured.My only complaint is that the packaging is poor. I had to return the first set because the meters had been crushed. But, Amazon made good on a replacement set and they arrived in 1 day.

Bought this as a way to add a vintage feel to my HiFi setup. Would be nice if there was some sort of diagram that comes with it, so you need to be a little savvy when it comes to wiring this up. Yes, the complaints about microscopic wiring are true, but they are connecterized will and can not be plugged in the wrong way. The most confusing thing is meter warning. The two outside lugs near the edge are the power for the backlight. The inner most two are clearly labeled + and - for the signal inputs. DONT CONFUSE THE TWO. Would be nice if they were indicated. Had to sort of figure this out.There is a pot to adjust brightness and well as signal level of the L and R channels. Have not worked to determine the accuracy of the setup, but there are adjustments you can make to 'calibrate' it. Overall, it's a neat kit that can add a vintage feel to your HiFi setup.

Had no issues making these work correctly. They aren't that big but it clearly gives dimensions. Round is easier to cut out of aluminum panel than rectangular ones (which I like the look of better). Used a switch to turn on/off so it won't drain battery in my boombox.