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User Manual of Douk Audio T8PRO
Warm tips:
- Two outputs (RCA / XLR ) can work at the same time.
- When the scale line on frequency knobs points to the middle means this frequency band is neither weakened nor strengthened. When rotating it to its middle position there will be a feeling of pause.
- Default 6H1N-BN tubes, can be changed to the following models: 6SN7GT / 6N1 / 6AQ8, and the 6SN7GT requires a 6SN7 to 6N1 socket adapter.
- Upgraded 7-band EQ preamp: separate and rich frequency band control (50Hz / 125Hz / 315Hz / 750Hz / 2KHz / 6KHz / 16KHz), T8 can compensate for the defects of speakers and sound field by adjusting 7-band high, middle and low frequencies, and modify various sound sources. The timbre and loudness also can be changed to achieve different sound effects.
- Real balanced XLR preamp: support XLR and RCA inputs and outputs, T8 can reproduce high-quality audio for amplifier or active speaker with excellent separation, resolution, sound field, clean background. Also with a balance control to compensate for the left and right channel of all outputs and prevent the sound field positioning from deviating from the center position.
- HiFi warm & sweet tube sound: adopts classic pluggable Soviet Union 6H1N-BN tube to improve everything detail associated with your music, sounds warm and delicate, full and mellow, dynamic and melodious. Pluggable socket design for tube rolling and sound-shaping, easy to pick from and alter the sound signature to one's preference.
- Advanced design and attractive appearance: adopts electrolytic iron plate with good shielding performance, and the performance is precisely balanced; black aluminum alloy chassis with vintage warm tube lights, looks cool, exquisite and durable, very suitable for the audiophiles who pursue HiFi sound.
- Model: Douk Audio T8PRO
- Audio input: single-ended RCA / balanced XLR
- Audio output: single-ended RCA / balanced XLR
- Frequency response: 20Hz～20KHz(±1dB)
- Frequency band: 50Hz / 125Hz / 315Hz / 750Hz / 2KHz / 6KHz / 16KHz
- RCA input sensitivity: 0.775Vrms
- RCA output level: 1.2Vrms
- BAL input sensitivity: 1.5Vrms
- BAL output level: 2.4Vrms
- THD: 0.01%
- SNR: ≥98dB
- Working voltage: DC12V (≥2A)
- Dimensions(W*D*H): 186*128*38mm / 7.32*5.04*1.50in
- Package dimensions(W*D*H): 340*240*70mm / 13.39*9.45*2.86in
- Net weight: 685g / 1.51lb
- Package weight: 1.1kg / 2.43lb
- T8PRO Preamp ×1
- 6H1N-BN Tube ×2
- DC 12V Power Adapter ×1
- User Manual ×1
@Rick Ruiz Audio
Douk Audio T8 Pro - Is it better?
@United States of Analog
Review: DOUK AUDIO T8 Pro 7-BAND Equalizer!
@Rick Ruiz Audio
Douk T8 Vs Schiit Lokius - Both Winners!
Hello
I'm using the T8 Pro EQ as a preamplifier and I think it's a pretty good preamplifier for the price with delicate EQ correction
I used it in connection with the D-class power amplifier, but I recently replaced it with an AB-class power amplifier.
The new power amplifier has a level meter based on the output, allowing you to visually recognize the imbalance in the left and right output signals.
The right output is a little low, so the sound image is tilted to the left. Fortunately, the T8 Pro has a balance adjustment, so I'm listening to it by increasing the balance to the right at about a 95 degree angle. I'd like to know the root cause of the difference in the output signal between the left and right sides of the T8 Pro.
The output on the right side of the T8 Pro is always low even when the RCA terminals are switched from side to side, the vacuum tube is switched from side to side, and the 2068D positioned in the five internal sockets.
I took out the D-class amplifier I used before and connected it again, and the sound image is definitely tilted to the left. This also needs to be balanced to the right at least a 95 degree angle.
It's a complicated and narrow room, so I've been using it without being aware of it. The balance correction at a 95 degree angle is a big difference, so where should I check it?
1. Is it a problem with the internal passive elements or cold lead? Is it a problem with the main volume? Where should I check it?
2. Another problem is that when I connect the sound source signal to the T8 Pro and raise the step-by-step volume, the music signal is very fine up to the first, second, and third stages, but it's output pretty loud at the fourth stage. Is this an impedance problem with the T8 Pro and the power amplifier? Is it a problem with the volume quality of the T8 Pro?
3. I don't use the XLR terminal, I only use the RCA terminal, where is the valid socket for OP amplifier rolling?
The Support menu on this site is blocked, so I'm contacting Douk Audio here for a technical inquiry.
Outstandingly good equaliser and such good value.
I used 2 x duel SS2590 x Sparkos in the eq, 2 x Burston Vivids v7 in the xlr and 1 x muses02 in the RCA, sounds amazing, sound stage and seperation is excellent and it doesn't ever sound harsh- sometimes lively.
The build quality of the T8 is fair-to-good but I bought it new from AliExpress for £60, it seems a top seller. I think it is a good press release and you are free blog or I can write a short post for you with pictures, and post on LinkedIn 20k+ followers.
My rig is a SS Galion TS75, The DOUK T8 with 2 x Soivet Military 6N1P EV 1976-7 gold grid, Nvidia Shield with USB Audio Pro outputting bit perfect to a Hiby FC4 headphone DAC 4.4mm to XLR feeding the XLR, and a pair of WharfDale Evo 4.4s, all of which are just a few days old and are buring in together.
Great quality,great sound!
Das Gerät ist wertig verarbeitet. Die Regler stehn in der Nullposition nicht in der Mitte. Rest ist sehr gut.