Te T6PRO is a compact tube amplifier designed by Douk Audio, combining cool design with exceptional performance. Adopting the combination of JAN5725 tubes and TPA3255 amp chip, the power output up to 300W for each channel can effortlessly drive 4-8Ω speakers, delivering impressive sound quality. With Bluetooth, 2 groups of stereo RCA and 3.5mm AUX inputs, preamp output besides speaker jacks output, easily to build multi-channel systems. Besides common treble and bass control, super bass low to 20Hz is added to achieve shocking bass effects. A whole piece of cool dark VU meter is used with dual panels and pointers swinging in real-time with audio signal changes, to get both auditory and visual enjoyment.

Features

• Dual VU Meter in One Visual Dashboard: T6PRO features dual VU meters on a single large board, with dynamic pointer swings that respond to audio signal changes. Automatic gain control (AGC) ensures smooth meter movement, providing real-time feedback with refined aesthetics. 

• Hybrid Design with Strong Output: The T6PRO combines JAN5725 tubes working at 100V for warm, true tube sound and a TPA3255 digital amp chip delivering up to 300W per channel, easily driving 4-8Ω speakers. Its compact size makes it ideal for desktop setups, bookshelves, and home theaters.

• Versatile Inputs & Preamp Out: Supports Bluetooth 5.1, AUX and dual RCA inputs for seamless connection and switch. A Bluetooth reset button enables fast re-pairing. The preamp output can connect to another amp or active speakers/subwoofer for 2.1 or multi-channel home theater systems. 

• Super Bass & Audiophile Components: With treble, bass, and a super bass knob adjustable down to 20Hz, T6PRO offers powerful bass effects. Audiophile-grade components like the QCC5125 Bluetooth chip and WIMA, ELNA, and Rubycon capacitors ensure exceptional clarity and low distortion. 

• Refined Craftsmanship & Attractive Design: CNC-machined, custom all-aluminum alloy body with larger speaker binding posts for safe high-power handling. Retro-style VU meters and modern design combine to deliver a luxurious feel and immersive HIFI audio experience.
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Q: What is the purpose of the pre-out port?  
A: It can connect to another amplifier or active speakers/subwoofer to build 2.1 or multi-channel home theater systems.  

Q: Is the volume of pre-out adjustable?
A: Yes, its volume, treble, bass, and super bass are all controlled synchronously with the speaker output. 

Q: Can I use a different power adapter for higher output?
A: Yes, while a 32V/5A or 48V/5A adapter is optional, you may replace it with a higher-power 48v 10a adapter of your own for better performance.

Q: Are the JAN5725 tubes replaceable?
A: Yes, they can be directly replaced by 6J1, 6J2, 6J3, 6J4, 6J5, 6K4, 6*IN, 6*4N, 6*5N, 5654, 6AK5, EF95, 6BA6, 403B etc. 

Q: What’s in the box?
A: Includes the amp, tubes, power adapter, Bluetooth antenna, and user manual.

Parameters

• Brand: Douk Audio 
• Model: T6PRO
• Audio input: Bluetooth 5.1/2 groups of stereo RCA / 3.5mm AUX
• Audio output: banana speaker jacks / Pre-Out
• Bluetooth version: QCC5125 (support APTX/APTX-HD/LDAC)
• Sampling rated BT supported: 24bit/96Khz
• Max output power: 300Wx2 (@4Ω)
• Matched speaker impedance: 4-8Ω
• Tone control range / center frequency:
  Treble: ±8dB / 10KHz
  Bass: ±6dB / 200Hz
  Super bass: ±10dB / 20Hz
• Frequency response: 20Hz-20KHz (±1dB)
• Input sensitivity: 0.775V/0dBFS
• Max output level of Pre-Out: 3V
• THD: 0.01%
• SNR: ≥102dB
• Working voltage: DC 24-48V
• Dimensions(W*D*H): 140*165*69mm / 5.51*6.50*2.72in
• Package dimensions(W*D*H): 250*228*110mm / 9.84*8.98* 4.33in
• Net weight: 1.4kg /  3.09lb
• Package weight (with 32V Power Adapter): 2.1kg / 4.63lb
• Package weight (with 48V Power Adapter): 2.4kg / 5.29lb

Power Output Table of T6PRO

Packing List

• 1×T6PRO Amplifier
• 2×JAN5725 Tube
• 1×DC 32V Power Adapter (Optional)
• 1×DC 48V Power Adapte(Optional)
• 1×Bluetooth Antenna
• 1×User Manual