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Douk Audio VU22 Dual Analog VU Meter with MIC and LINE Inputs Review

Dual 45mm analog VU meters in a CNC-machined metal case, fed by stereo RCA, 3.5mm AUX or microphone pickup. Gain, backlight color and level are all adjustable, and the 100K input leaves the signal untouched.

3.73.7 out of 5 starsUpdated October 14, 2026
$89.99Price checked October 14, 2026
Check price at Douk Audio
Douk Audio VU22 Dual Analog VU Meter with MIC and LINE Inputs

Our verdict

The VU22 is a $89.99 dual analog VU meter for listeners who want their desk or rack to move with the music. Feed it by RCA, 3.5mm AUX or microphone pickup, and tune the 45mm needles with gain and AGC while the backlight color matches your room. The 100K input keeps your signal untouched and settings survive power-off. Plan for a dedicated USB power supply, one wired input at a time, and the rare isolation module if ground noise appears.

Best for
Listeners who want dual analog needles dancing on their desk or rack, with wired and wireless pickup options.
Skip if
You want a meter you can power from any handy USB port, or you need two wired inputs connected simultaneously.
Check price at Douk AudioHow we research

The Douk Audio VU22 is a dual analog VU meter and sound level display priced at $89.99, built to decorate a home, office or studio system with two 45mm moving-needle meters behind a DB-style panel. It comes in black or silver with a CNC-machined all-metal case, measuring 177 x 115 x 59mm at 661g.

Inputs cover both worlds: stereo RCA and 3.5mm AUX for a wired signal from a phone, computer, CD player or speakers, plus a microphone pickup for wireless listening to the room. A 100K high-impedance input circuit ensures line signals pass through cleanly with no audio rendering, and stereo RCA and 3.5mm outputs are provided for pass-through. Backlight color is switchable and its brightness adjustable, so the display can match different audio devices and environments.

The display logic uses an AGC algorithm that keeps the visual effect ideal whether the input signal is small or large, avoiding the no-display-at-low-volume and full-screen-at-high-volume problems. Gain adjustment lets you set the swing range of the pointers for the best beating effect on most input signals, and the accepted input voltage range is 0.1-2Vrms across a 5Hz-20kHz response. Settings are saved after power-off, and all interfaces are gold-plated for tight connections and minimal signal loss.

Douk Audio offers two operating notes. The VU22 needs a separate USB power supply at DC 5V / 1A or more over Type-C, and should not be powered from a computer's USB port or share its supply with the audio source, as that causes common-ground noise. The RCA and 3.5mm inputs are wired in parallel, so do not connect both at once or the signals will mix. The company also notes that though the VU22 is compatible with most audio devices, if common ground noise does appear, an isolation module between the VU22 and the source is the fix.

Douk Audio ships worldwide with free and expedited options, and the cost varies by destination country. Packages under 2kg go by airmail (10-25 days); heavier orders ship via DHL, UPS or FedEx (5-8 days). Import duties or customs charges are the buyer's responsibility. The store offers a 30-day free return or full refund and a 1-year warranty on all items, excluding orders placed by mistake, man-made damage or misuse, subjective change of mind, and anything outside the warranty terms.

What we liked

  • Two 45mm analog meters with a vintage DB panel look in a black or silver CNC-machined metal case
  • Three input options include wireless microphone pickup, so it can dance to the room without any wiring
  • 100K high-impedance input keeps line signals clean with no audio rendering, and RCA/3.5mm outputs pass the signal through
  • AGC plus gain adjustment set the pointer's swing range for any input level, with adjustable backlight color and brightness
  • Settings are saved after power-off, and gold-plated interfaces keep connections tight

Worth noting

  • No power adapter is included, and Douk Audio advises against using a computer USB port or sharing power with the audio source, which causes common-ground noise
  • The RCA and 3.5mm inputs are in parallel, so connect only one at a time to avoid mixed signals
  • Some setups may still develop ground noise and need an added isolation module between the VU22 and the source

Questions before you buy

What inputs does the VU22 accept?

Stereo RCA, 3.5mm AUX and microphone pickup. The RCA and 3.5mm inputs are wired in parallel, so use only one at a time to avoid mixing signals.

Can I connect it between my source and amplifier?

Yes. It has stereo RCA and 3.5mm AUX outputs as pass-throughs, and the 100K high-impedance input means the signal is not altered.

How should I power it?

With a dedicated DC 5V / 1A (or more) USB Type-C supply. Do not use a computer USB port or share the supply with the audio source, or common-ground noise may appear.

What is the return and warranty policy?

Douk Audio offers a 30-day free return or full refund and a 1-year warranty. Exclusions include orders placed by mistake, man-made damage or misuse, and subjective change of mind.

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