{"product_id":"pre-sale-douk-audio-vu3-plus-2-way-amplifier-speaker-selector-with-accurate-power-vu-meter","title":"[Pre-Sale] Douk Audio VU3-PLUS：2‑Way Amplifier\/Speaker Selector with Accurate Power VU Meter","description":"\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNext-Generation VU Metering: For listeners who love the sweep of large analog meters but want more practical value, VU3-PLUS answers that need. It carries forward VU3-PRO’s signature visual appeal, flexible amp\/speaker switching and effortless control, while adding precise power monitoring and higher power handling for demanding HiFi systems.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSee What Your Amplifier Delivers: Shows actual amplifier output as clear, accurate watt readings for volume adjustment, speaker pairing and gear comparison. Select 2 \/ 4 \/ 6 \/ 8Ω based on speaker load for greater accuracy. 0 \/ +20dB gain covers a 0.01mW–1000W power measurement range without altering the sound. AVE shows steadier average output, while PEAK captures fast transient peaks.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMore Flexible Listening Setups: As a selector\/splitter, it keeps two amplifiers and two pairs of passive speakers connected without repeated rewiring. Switch between amps and speaker pairs for quick system changes and A\/B comparisons, with the option to keep both speaker pairs active when needed. A built-in 510Ω protective load safeguards the unselected amp during switching. \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMusic in Authentic VU Motion: Large analog VU meters follow actual output dynamics, giving every sweep a natural visual rhythm closely tied to the music. Tune the look from subtle glow to bold display with 35 backlight colors, color cycling and five brightness levels. For a more understated look, turn the VU meters off completely while amp\/speaker switching stays active.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eReady for Serious HiFi Systems: Compatible with all common amplifier types—Class A\/B\/D, BTL and tube amplifiers—VU3-PLUS handles up to 1000W pass-through at 8Ω. Remote control and 5–15V Trigger IN\/OUT streamline operation, while GND and USB-C 5V simplify setup. A CNC aluminum front panel and steel chassis give it the solid feel of a true HiFi component.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cstrong\u003eQ: What is the maximum output power supported by the VU3-PLUS?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Maximum pass-through power depends on the total load impedance: 200W at 2Ω, 500W at 4Ω, 700W at 6Ω, and 1000W at 8Ω. Do not exceed the corresponding power limit.  \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cstrong\u003eQ: Can I use both speaker pairs at the same time, and which impedance setting should I choose?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. When both pairs are active, they are connected in parallel. Select the 2 \/ 4 \/ 6 \/ 8Ω setting closest to their combined impedance for accurate power readings, and make sure your amplifier supports the combined load. For example, 4Ω and 6Ω speakers combine to about 2.4Ω, so select 2Ω.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003cstrong\u003eQ: Can both amplifiers operate at the same time?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. Both can stay connected, but only one amplifier can be active at a time.  \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt; color: #000000;\"\u003e\u003cstrong\u003eQ: Will the 0 \/ +20dB gain affect volume or sound?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. It only changes how the VU meters display the signal and does not affect the sound.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt; color: #000000;\"\u003e\u003cstrong\u003eQ: Why isn’t Trigger OUT activating my other device?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Trigger OUT only passes a control signal when Trigger IN receives a 5–15V trigger signal. It does not generate trigger voltage on its own. \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt; color: #000000;\"\u003e\u003cstrong\u003eQ: Can I turn off the VU meters and use VU3-PLUS only as a switcher?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt; color: #000000;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. The VU meters can be turned off completely while amplifier\/speaker switching and signal routing remain active. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt; color: #000000;\"\u003e\u003cstrong\u003eQ: What power supply should I use?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt; color: #000000;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Use a standard USB-C 5V \/ ≥2A or higher power supply. Most USB adapters work normally, but some fast-charging supplies may not be recognized correctly.  \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt; color: #000000;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eQ: Are batteries included with the remote control?\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eA: \u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFor safer and faster delivery, batteries are not included. The remote requires 2 × AAA batteries, which need to be prepared separately.\u003c\/span\u003e \u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cstrong\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eParameters\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBrand: Douk Audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eModel: VU3-PLUS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eAmplifier Inputs: 2 sets, banana binding posts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eSpeaker Outputs: 2 sets, banana binding posts  \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eWorking Mode: 2-In-2-Out\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eFrequency Response: 20 Hz-20 kHz, ±3 dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eCompatible Amplifiers: All types of amplifiers \u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e(BTL\/ Class A\/ Class B \/ Class D digital amp \/ tube amp)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eMax. Pass-through Power: 200 W @ 2 Ω \/ 500 W @ 4 Ω \/ 700 W @ 6 Ω \/ 1000 W @ 8 Ω\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Speaker Impedance Settings: 2 Ω \/ 4 Ω \/ 6 Ω \/ 8 Ω \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e VU Meter Gain: 0 dB \/ +20 dB \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Power Measurement Range: 0 dB: 1 mW–1000 W; +20 dB: 0.01 mW–10 W \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Indication Accuracy: ±2 dB at the 0 dB reference point \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Meter Response: AVE: 330 ms; PEAK: 100 μs \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eBacklight: 35 colors + color cycling; 5 brightness levels  \u003c\/span\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Amplifier No-Load Protection: Built-in 510 Ω protective load \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Trigger IN \/ OUT: DC 5–15 V, 3.5 mm TS \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Power Input: USB-C, DC 5 V \/ ≥ 2 A \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e VU Meter Size: 85 × 45 mm \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e Dimensions (W × D × H): 275 × 155 × 74 mm \/ 10.83 × 6.10 × 2.91 in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage Dimensions (W × D × H): 380 ×  220 × 100 mm \/ 14.96 × 8.66 × 3.94 in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003eNet Weight: 1.78 kg \/ 3.92 lb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePackage Weight: 2.17 kg \/ 4.78 lb\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003chr\u003e\n\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003ePacking List\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e1 × VU3-PLUS\u003cspan\u003e\u003c\/span\u003e \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e 1 × Power Adapter \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e 1 × Remote Control (Batteries Not Included) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e 1 × USB Cable \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: 'times new roman', times; font-size: 14pt;\"\u003e 1 × User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Douk Audio","offers":[{"title":"Black \/ US","offer_id":49019765915880,"sku":"XX-VU3-PLUS-H-US","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ UK","offer_id":49019765948648,"sku":"XX-VU3-PLUS-H-UK","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ EU","offer_id":49019765981416,"sku":"XX-VU3-PLUS-H-DE","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ AU","offer_id":49019766014184,"sku":"XX-VU3-PLUS-H-AU","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ China","offer_id":49019766046952,"sku":"XX-VU3-PLUS-H","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Silver \/ US","offer_id":49019766079720,"sku":"XX-VU3-PLUS-S-US","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Silver \/ UK","offer_id":49019766112488,"sku":"XX-VU3-PLUS-S-UK","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Silver \/ EU","offer_id":49019766145256,"sku":"XX-VU3-PLUS-S-DE","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Silver \/ AU","offer_id":49019766178024,"sku":"XX-VU3-PLUS-S-AU","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Silver \/ China","offer_id":49019766210792,"sku":"XX-VU3-PLUS-S","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/6995\/9912\/files\/1_f67f373c-2148-42d2-9aa6-302cc52e68c8.jpg?v=1788579548","url":"https:\/\/doukaudio.com\/it\/products\/pre-sale-douk-audio-vu3-plus-2-way-amplifier-speaker-selector-with-accurate-power-vu-meter","provider":"Douk Audio","version":"1.0","type":"link"}