Multiple audio input and output: Support Bluetooth/Balanced XLR/RCA input, compatible with most audio sources such as mobile phones, tablets, TV, CD players, etc. With balanced XLR/RC/3.5mm headphone jack output, you can connect amplifiers/active speakers/headphones, maintain high-quality lossless audio transmission, and enjoy HiFi sound quality.

　　Noiseless JAN5725W tubes: Equipped with two 5725 vacuum tubes, filter digital sense of sound, effectively improve sound quality, output soft and sweet sound; pluggable tube socket design, can be upgraded to 6J1, 6K4, 5654, 6AK5, EF95, 403B, etc to enjoy tube sound of different styles.

　　Powerful OLED screen display: Intuitively displays Bluetooth connection status/ device volume / EQ sound effects, etc.,

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　　HiFi Vaccum Tube Preamp with Bluetooth 5.0 XLR Balanced Audio Amp Receiver LDAC

　　Item description

　　Shipping from USA Warehouse, 1-6 Working days to most US regions.

　　If you want the same series of matched power amplifier (Douk Audio H7) please click: LINK

　　Features

　　Multiple audio inputs and outputs: Support Bluetooth/Balanced XLR/RCA input, compatible with most audio sources such as mobile phones, tablets, TV, CD players, etc. With balanced XLR/RCA/3.5mm headphone jack output, you can connect amplifiers/active speakers/headphones, maintain high-quality lossless audio transmission, and enjoy HiFi sound quality.

　　Noiseless JAN5725W tubes: Equipped with two 5725 vacuum tubes, filter digital sense of sound, effectively improve sound quality, output soft and sweet sound; pluggable tube socket design, can be replaced by 6J1, 6K4, 5654, 6AK5, EF95, 403B, etc to enjoy tube sound of different styles.

　　Powerful OLED screen display: Intuitively displays Bluetooth connection status/ device volume / EQ sound effects, etc., to let you know the working status at any time; besides, a variety of EQ sound effects are available, which is highly playable and adds a lot of fun.

　　High-performance chip: Using QCC5125 Bluetooth module, supporting LDAC 96kHz/24Bit, high transmission and low latency; using CS4344 decoding chip, richer audio details, and wider dynamic range, ensuring better performance.

　　Perfect design of appearance and function: Silver-gray body with orange tubes, the overall appearance is exquisite, and the size is just right to decorate your desktop. Modern OLED display screen and a full-featured remote control, convenient and easy to use, suitable for audiophiles.

　　Warm Tips

　　For safer and faster delivery, the remote control may not include batteries (2*AAA), please prepare it by yourself.

　　3.5mm headphone jack output is prior, which means stereo RCA and XLR output will auto disconnect when headphone is inserted.

　　Parameters

　　Chips: QCC5125 (Bluetooth chip) + CS4344 (DAC chip)

　　Tubes: 2*JAN5725W

　　Audio Input: Bluetooth / Balanced XLR / Stereo RCA

　　Audio Output: Balanced XLR/Stereo RCA / 3.5mm headphone jack

　　Bluetooth version: 5.0 (support LDAC 96khz/24Bit)

　　RCA maximum output amplitude: 2V

　　BAL maximum output amplitude: 4V

　　Headphone output power: 120mW (32Ω)

　　Headphone impedance range: 16-300Ω

　　Distortion: 0.05%

　　SNR: ≥103dB

　　Working voltage: DC 12V

　　Input Sensitivity: 1Vrms

　　Frequency response: 20Hz-20KHz (±1dB)

　　Dimensions (W*D*H): 126*167*42mm / 4.96*6.57*1.65in

　　Package dimensions (W*D*H): 310*240*70mm / 12.20*9.45*2.76in 

　　Net weight: 665g / 1.47lb

　　Package weight: 1.0kg / 2.20lb

　　Packing list

　　1*H8 Preamp

　　2*JAN5725W Tube

　　1*DC 12V Power Adapter

　　1*Bluetooth Antenna

　　1*Remote Control (without battery 2*AAA)

　　Payment

　　Fast Shipping

　　Return Policy

　　About us

　　Contact us

　　Payment

　　Safe and secure payment by PayPal.

　　Fast Shipping

　　The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver.

　　Return Policy

　　Free Return Within 30 Days

　　We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided.

　　1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes).

　　If you are satisfied with our products and service please leave a 5-star .

　　Feedback is very important to us just like our lives, please DO contact us before you leave a neutral

　　or negative

　　feedback, we will provide better solutions until you are satisfied.

　　About us

　　Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc.  As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable.  We will spare no efforts to bring great products and service for customers and extremely to improve our customers’ listening experience.

　　Contact us

　　Please don't hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at:   Working time Beijing(CN)Monday-Friday09:00 AM - 18:00 AMNew York(US)Sunday to Thursday08:00 PM - 05:00 AMLondon(UK)Monday-Friday01:00 AM - 10:00 AMParis(FR)Monday-Friday02:00 AM - 11:00 AM  During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation.

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