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Douk Audio VU2-PRO 4-Way Audio Selector with Analog VU Meter Review

A pre-sale 4-way RCA audio selector and splitter with calibrated dual analog VU meters, letting you route up to four sources or feed four outputs - plus metered XLR pass-through.

3.73.7 out of 5 starsUpdated October 14, 2026
$199.99Price checked October 14, 2026
Check price at Douk Audio
Douk Audio VU2-PRO 4-Way Audio Selector with Analog VU Meter

Our verdict

The VU2-PRO takes Douk Audio's VU2 concept and adds calibrated dual analog VU meters, so you can see real signal levels with three meter-gain settings while managing four RCA sources or four outputs. XLR pass-through brings the metering to balanced rigs, and it keeps the 35-color backlighting, remote control and triggers of the VU family. At $199.99 as a pre-sale item it suits system builders who rewire often; just remember there is no per-channel volume, so it is a switcher rather than a mixer.

Best for
HiFi listeners with several RCA sources who want a calibrated, great-looking switcher-splitter with analog VU metering and XLR pass-through.
Skip if
You need per-channel volume control like a mixer, or you want a unit that ships immediately - this is a pre-sale switcher, not an active mixer.
Check price at Douk AudioHow we research

The Douk Audio VU2-PRO is a 4-way audio selector priced at $199.99, sold as a pre-sale listing. It combines classic dual analog VU metering with flexible RCA audio switching and splitting: connect up to four RCA sources such as DACs or preamps and switch between them, or send one source to as many as four RCA outputs at once.

The meters are calibrated rather than decorative. Three meter-gain settings (0, -10 and -20dB) keep readings clear whether input levels are low or high, with maximum inputs of 24.5Vrms at -20dB, 7.75Vrms at -10dB and 2.45Vrms at 0dB. The gain selection only affects the meter range, not the audio signal. AVE gives steadier average readings while PEAK catches sudden peaks.

Independent XLR pass-through adds VU metering to a balanced setup, and the presentation matches the rest of the VU line: 35 backlight colors, color cycling, five brightness levels, and an option to turn the meters off while switching stays active. The CNC aluminum front panel and steel chassis feel like true HiFi gear, and USB-C DC 5V/2A power, a remote control, 5-15V Trigger IN/OUT and a GND terminal cover convenience and grounding flexibility.

Douk Audio ships worldwide with free and expedited options; costs vary by country. Parcels under 2kg ship airmail (10-25 days), heavier orders by DHL, UPS or FedEx (5-8 days), and any import duties or customs fees are the customer'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

  • Keeps up to four RCA sources connected and switches between them, or sends one source to as many as four outputs
  • Calibrated analog VU meters show real signal levels with 0/-10/-20dB gain settings that do not affect the audio
  • AVE and PEAK modes help read average levels or catch sudden peaks
  • Independent XLR pass-through adds metering to a balanced setup without extra boxes
  • CNC aluminum front panel, steel chassis, remote control and 5-15V triggers

Worth noting

  • Pre-sale item: expect a wait before dispatch rather than immediate shipping
  • No independent volume control per channel, so in 4-in-1-out use Douk Audio recommends selecting one input at a time
  • The XLR connection is pass-through only, and RCA/XLR inputs cannot be mixed-and-matched beyond the described modes

Questions before you buy

Which VU meter gain setting should I use?

If the input level is unknown, start at -20dB. Maximum input is 24.5Vrms at -20dB, 7.75Vrms at -10dB and 2.45Vrms at 0dB; the gain setting only affects the VU meter range, not the audio level.

Can multiple RCA channels operate at the same time?

In 1-in-4-out mode, up to four RCA outputs can work at the same time. In 4-in-1-out mode, multiple inputs can be selected but using one at a time is recommended since there is no separate volume control for each channel; multiple outputs are selected simultaneously using the front-panel buttons.

Can RCA and XLR work at the same time?

Yes. The description states RCA and XLR operate independently, with the XLR connection provided as pass-through to add VU metering to balanced setups.

How is the VU2-PRO powered?

Via USB-C DC 5V at 2A or more; as a pre-sale item, expect a wait before dispatch rather than immediate shipping.

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