--- product_id: 640963669 title: "Mini Tube DAC Preamp Coax/Opt to RCA Converter Balanced Headphone Amp 24Bit/192K" brand: "douk audio" price: "12592050β‚«" currency: VND in_stock: true reviews_count: 1 url: https://www.desertcart.vn/products/640963669-mini-tube-dac-preamp-coax-opt-to-rca-converter-balanced store_origin: VN region: Vietnam --- # 24Bit/192KHz CNC Machined 1200mW@32Ξ© Mini Tube DAC Preamp Coax/Opt to RCA Converter Balanced Headphone Amp 24Bit/192K **Brand:** douk audio **Price:** 12592050β‚« **Availability:** βœ… In Stock ## Summary > 🎢 Unleash the audiophile in you with the TUBE-T7! ## Quick Answers - **What is this?** Mini Tube DAC Preamp Coax/Opt to RCA Converter Balanced Headphone Amp 24Bit/192K by douk audio - **How much does it cost?** 12592050β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/640963669-mini-tube-dac-preamp-coax-opt-to-rca-converter-balanced) ## Best For - douk audio enthusiasts ## Why This Product - Trusted douk audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Transform Your Sound:** Elevate your audio experience with rich, warm tones. - β€’ **Tailored Audio Control:** Customize your sound with treble and bass knobs. - β€’ **Versatile Connectivity:** Seamlessly connect to phones, tablets, TVs, and more. - β€’ **High-Quality Components:** Experience superior sound with top-tier audio technology. - β€’ **Compact & Stylish Design:** A sleek, modern look that fits any space. ## Overview The Douk Audio Mini Tube DAC Preamp is a versatile audio converter that enhances sound quality across various devices. With its 24Bit/192KHz support, powerful headphone amp outputs, and customizable sound controls, it’s designed for audiophiles seeking both performance and style in a compact package. ## Description Warm Tips 1. Dual headphone jack output is prior and can output at the same time, stereo RCA output will auto disconnected when headphone is inserted. 2. Pluggable tube socket design, 6J9 can be upgraded to 6*9N / EF861 tubes. Parameters Audio input: Optical / Coaxial / Stereo RCA Audio output: Stereo RCA / 3.5mm headphone jack / 4.4mm balanced headphone jack Max sampling rate supported by coaxial / optical: PCM 192KHz/24bit Max output power of headphone jack: 1200mW/32Ξ© (3.5mm jack) 260mW/32Ξ© (4.4mm jack) Matched headphone impedance range: 16-600Ξ© Frequency response: 20Hz-20kHz(Β±0.5dB) THD: 0.03% SNR: β‰₯106dB RCA output level: 2VRMS Treble & Bass range: Β±6dB Working voltage: DC 12V Dimensions(W*D*H): 132*132*33mm / 5.20*5.20*1.30in Package dimensions(W*D*H): 310*240*80mm / 12.20*9.45*3.15in Net weight: 542g / 1.19lb Package weight: 900g / 1.98lb Packing List 1*TUBE-T7 Preamp 2*6J9 Tube 1*DC 12V Power Adapter 1*Optical Cable ## Features - D/A Converter & Tube Preamp & Headphone Amp: with coaxial /optical fiber /stereo RCA inputs, stereo RCA and dual 4.4mm and 3.5mm headphone amp outputs, TUBE-T7 can work perfectly with different audio devices such as phone, tablet, TV, CD player etc., greatly improve the sound quality for them and also rejuvenate those old amplifiers or active speakers without digital inputs. - HIFI Warm Sound & Tone Control: tube design filters out the digital sounds of common sound sources, the sound is soft and delicate, and pluggable socket design easy for tube rolling and sound-shaping. With treble and bass knobs, presenting music with rousing highs and deep lows, more delicate and smooth sound can be achieved according to your own listening styles. - Mature Circuit & High-quality Components: adopting ESS9018 decoding chip supports 24bit/192KHz transmission, 2PCS TPA6120A2 amp IC for strong output power (1200mW@32Ξ©), 5*NE5532 op amp provides better performance and wide sound field, reasonable circuit and precision production to ensure accurate and balanced performance. - Mini Size & Attractive Appearance: fashionable CNC machined black aluminum alloy chassis combined with warm light from vintage tube looks great, input selection knobs for easier switch, provide different acoustic enjoyment with large dynamic and sweet tube sound even in limited space, very suitable for the audiophiles who pursue wonderful auditory and visual enjoyment. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand Name | Douk Audio | | Package Dimensions | 29.49 x 22.4 x 6.5 cm; 862 g | | Item model number | SUC-TUBE-T7 | | Manufacturer | Douk Audio | | Item Weight | 862 g | ## Images ![Mini Tube DAC Preamp Coax/Opt to RCA Converter Balanced Headphone Amp 24Bit/192K - Image 1](https://m.media-amazon.com/images/I/61Q6OAyjo3L.jpg) ![Mini Tube DAC Preamp Coax/Opt to RCA Converter Balanced Headphone Amp 24Bit/192K - Image 2](https://m.media-amazon.com/images/I/71oIpC7RcIL.jpg) ![Mini Tube DAC Preamp Coax/Opt to RCA Converter Balanced Headphone Amp 24Bit/192K - Image 3](https://m.media-amazon.com/images/I/81aBNzMv2YL.jpg) ![Mini Tube DAC Preamp Coax/Opt to RCA Converter Balanced Headphone Amp 24Bit/192K - Image 4](https://m.media-amazon.com/images/I/71Hr-N+PlOL.jpg) ![Mini Tube DAC Preamp Coax/Opt to RCA Converter Balanced Headphone Amp 24Bit/192K - Image 5](https://m.media-amazon.com/images/I/71CLyCFR+IL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well and appears sturdily made *by A***B on Reviewed in the United States on 26 September 2023* Great value for what appears to be a well functioning tube preamp with optical in. So far so good. ## Frequently Bought Together - Mini Tube DAC Preamp with Coaxial/Optical to RCA Conversion, Balanced Headphone Amp, 24Bit/192KHz - Tan QY 2RCA to 2RCA Cable 3Ft, Gold-Plated 2 RCA Male to 2 RCA Male Stereo Audio Cable for Home Theater, HDTV, Gaming Consoles, Hi-Fi Systems (3Ft/1M) - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/640963669-mini-tube-dac-preamp-coax-opt-to-rca-converter-balanced](https://www.desertcart.vn/products/640963669-mini-tube-dac-preamp-coax-opt-to-rca-converter-balanced) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-16*