Does it work in passive mode? w/o usb power just passtrhu 1 amp to 1 set of speakers?

The instructions are to use the meter in passive mode by using the amp-B and speaker-2 selections. This is what I use and it works perfectly. BTW, turning the meter on while listening does not introduce any “pop” or other noise.

What other model from douk provides switching 2 in and 2 out using rca plugs in lieu of banana plugs?

This is speaker selection device so it uses speaker inputs and outputs. Douk does make component switching devices that will have RCA inputs and outputs for audio components (not speakers). Not sure if they have 2 in, 2 out but there are many others that do. Search RCA audio switcher

does it have an internal mic and not used as a switch?

Hello. If you want internal mic, please choose this one https://www.amazon.com/gp/product/B08N12PSC8/ref=ask_ql_qh_dp_hza

Since it doesn't include the wall wart for the usb power cable, what amperage is necessary? 0.5 amps, 1 amp, 2 amps?

It is 1 Amp, it says it right under the USB jack. You can see it in the Amazon pictures.

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Douk Audio VU3 デュアルアナログ VU メーター, 2 ウェイアンプ/スピーカースイッチ, DB パネルディスプレイオーディオスイッチャーボックス

Product ID: 735059403

Details

Brand
Douk Audio
Color
Black
Manufacturer
Douk Audio
Number of Items
1
Number of Ports
4

📏Dual 60x35mm large VU meters

🔀2-way amp & speaker switcher

🔌Fully insulated independent channels

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Description

🎛️ Switch, see, and sound supreme — your audio command center awaits!

VISUAL AUDIO MASTERY - Dual oversized VU meters deliver dynamic, vintage-inspired visual feedback that elevates your audio setup’s aesthetic and precision.
SLEEK DURABLE DESIGN - Crafted from premium aluminum with a cool black finish and warm VU glow, it’s the perfect centerpiece for any modern or vintage audio environment.
INTERFERENCE FREE SOUND - Fully insulated channels with independent grounds ensure crystal-clear audio with zero cross-talk or interference.
SEAMLESS SIGNAL SWITCHING - Effortlessly toggle between 2 amplifiers and 2 speaker pairs without cable hassle or wear—perfect for multitasking audiophiles.
REMOTE CONTROLLED CONVENIENCE - Adjust settings from across the room with included remote; all preferences are saved even after shutdown for instant recall.

The Douk Audio VU3 is a premium dual analog VU meter combined with a 2-way amplifier and speaker switcher. Featuring large 60x35mm meters, fully insulated independent channels, and compatibility with all amplifier types, it offers seamless switching between 2 amps and 2 speaker pairs. Powered via micro USB and controlled remotely, it stores your settings for effortless use. Its sleek aluminum build and vintage-inspired design make it a must-have for serious audio enthusiasts seeking both style and functionality.

Specifications

ASIN	B096KLDMCV
Amazon Bestseller	#32,821 in Electronics ( See Top 100 in Electronics ) #173 in Audio & Video Selector Boxes
Brand	Douk Audio
Color	Black
Country of Origin	China
Customer Reviews	4.2 4.2 out of 5 stars (373)
Item Weight	980 Grams
Manufacturer	Douk Audio
Mfr Part Number	XX-VU3
Model Number	DOUK-VU3
Number of Ports	4
Warranty Description	1 year limited warranty

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NZ$420

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In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to New Zealand.

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Douk Audio VU3 デュアル アナログ VU メーター, 2 ウェイ アンプ/スピーカー スイッチ, DB パネルディスプレイ オーディオ スイッチャー ボックス

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Details

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Common Questions

Douk Audio VU3 デュアルアナログ VU メーター, 2 ウェイアンプ/スピーカースイッチ, DB パネルディスプレイオーディオスイッチャーボックス