Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO)

I had a lot of small room acoustic issues as well as speaker placement problems but Douk audio t8 pro equilizer banished all the issues i had , i strongly recommend this product

I’ve just received my T8 Pro and am really pleased with it. There seems some confusion between this 7 band equaliser and the previous 5 band one-not helped by calling them both T8! My Pre/Power Amps are all valve and so the Douks 2 valves/Tubes peaking out of the Equaliser suit me as the rest of mine are hidden. Perhaps I’m in the other camp of thinking-Oh no I’ve got solid state in the chain now! 😂 . My main concern was is it going to degrade the signal and I’m pleased to say that I can’t notice that. It’s a big improvement for me as my system was rather sharp and edgy sounding, especially on vocals. Having the 2KHz adjuster I can now see that’s where the problem stemmed from-although you can’t totally eradicate a bad recoding but it does make it more acceptable. I like the volume control as my preamp used to take off volume wise at the slightest touch-saves having to use attenuators. Another good thing is my preamp has 2 separate volume controls and it’s great using just one now. Also I appreciate the recessed balance control as one of my channels was slightly louder and it narked me staring at the very slightly different volume positions. It wouldn’t be solved by reposition the preamp knobs etc so this is an easy solution and seems more pleasing having the control recessed as you tend not to be so concerned about its position. I love it and the gentle glow of the valves. I purchased mine direct from Douk Audio( China) as Amazon didn’t sell this model then (£114 !). Update-I did change the valves/tubes using the same type (NOS) from a Ukrainian EBay supplier. It gave a warmer sound which I preferred. Also the equaliser solved a small earth loop hum between my pre and power amps 👍.

Not satisfying

Desde que decidí armar configuraciones de equipos con conexiones balanceadas XLR, estaba en busca de un nuevo preamplificador de tubos, ya cuento con algunos como Aiyima T1pro, T6 pro ambos en RCA y Douk Audio H8 XLR balanceado! Me llamo la atención que Douk Audio T8 pro sea Equalizador y preamplificador a la vez, con tubos, y que además tenga conexiones equilibradas, por este precio? Honestamente no pensé que fuera a ofrecer más que los que ya tengo, pero bueno, démosle una oportunidad y probemos, que no se pierde nada! Cuando llegó lo puse en el estante de mis equipos, y al día siguiente me entró curiosidad por ponerlo a prueba! Normalmente mi configuración empieza en mi fuente de audio, que es mi Smartphone, conectado a un DAC, en este caso está el Fosi Audio Zd3, al centro un pream. De tubos, ahora entro T8 pro, y en seguida algunos de mis Receptores en este caso quedó ZA3 de Fosi, también probé el nuevo Aiyima A20. Por principio de cuentas fue una grata sorpresa el nuevo miembro de la configuración central, el Douk T8pro, y a medida que encontré su balance a mí gusto de sus frecuencias más me fue gustando! Y aún hay más! En la medida que fue tomando temperatura, más detallado y calidez mostró en cada canción que escuchaba! La verdad quedé encantado con T8 pro! Es una ganga! Tomando en cuenta que sus tubos son el 50% del precio total! El otro 50% es la máquina! Douk Audio! Si en un futuro decides actualizar al T8 pro que sea para mejorarlo! Sino, déjalo así, que así está perfecto! Ahora T8 pro paso a ser un titular indiscutible en mi configuración de audio! No lo piensen mucho en adquirirlo! Este chico está indiscutiblemente recomendado!

I say it reviles the $1000 Schiit Freya+. I bought extra tubes to roll with including British MULLARD ECC 85's and Russian Voskhod Factory OTK1 6H1n-EB's ;o)

I've had the T8 Pro for a number of weeks now and through a series of fortunate events have ended up with a second, so now I'm lucky enough to have both a silver and black model which I've been using to experiment with tube rolling (makes A/B testing incredibly convenient). I'd like to first address what I consider to be the sole con of this device which is the ever so slight reduction in clarity. I think this is just about a given in cheap preamps/equalizers, especially tube based models. I have a relatively high end DAC (Geshelli Labs J2 Socketed with the AK4499 DAC chip) and frankly I was expecting a bit more in terms of the hit in clarity. Overall, it's a very minor veiling and it doesn't really affect my enjoyment of my music. Now on to the pros which I believe are myriad. First is the fact that not only does this EQ have balanced inputs and outputs, but it does both XLR to RCA conversion and vice versa. I find these features to be pretty much non existent in gear this inexpensive. I currently mostly use the XLR input, but I've experimented with this feature and it works very well. Build quality is very nice with a solid metal chassis and suitable heft for a device this size. The 7 bands of the EQ are very nicely spaced out and I have no problem modeling the sound precisely as I like quickly and easily. If you're contemplating between the T8 and T8 Pro, it's a no brainer, get the T8 Pro. The two extra bands of EQ are far more valuable than the headphone amp included in the standard T8 unless one is on a tight budget and really wants an integrated headphone amp. I've heard the headphone amp isn't very good and I'm likely to believe that considering how much hardware for the money is already included. The difference in price between the two is negligible and now with coupon, the T8 Pro is actually cheaper. The EQ does provide gain and it does so very cleanly. I rarely push the volume beyond the 12 o'clock position, but when I do, it can feed plenty of gain to my amplifier and it does so with zero distortion that I can notice. Now for my favorite feature of this EQ: the tubes! The included 6H1N-BN tubes impart a very pleasant tube warmth to my Archel 2.5XL amp. I loved the sound of this amp before, but this EQ was the missing link that I was searching for. Lastly is the ability for not only tube rolling, but OP amp rolling as well. I've tried a set of 12au7 tubes so far and I found that they provide an even more euphonic character to an already very sweet sounding system. You can pick up a gain matched pair for around $60, and while that is about 50% of the cost of this EQ, I can say it's a fairly solid upgrade to an already very solid EQ. I haven't experimented with op amp rolling as of yet, but there are 5 dip-8 sockets by my count, so I'm looking forward to playing around with that as well. There are plenty of op amps ranging from a few bucks a piece to around $100 a piece, so this unit seems to be very upgradable. I haven't experimented with linear power supplies either, but I imagine that's another possible sonic upgrade to look forward to in the future. Overall, I am extremely impressed with this EQ. It's cheap, yet very solidly constructed, does exactly what it says it does and offers much in terms of user customization. Frankly, I'm fairly puzzled by the somewhat average reviews for this as I consider it to be an absolutely incredible value. I'm a big fan of Schiit products, but the Loki and the Lokius don't offer the functionality or that sweet tube character of the T8 Pro. The Loki isn't balanced and offers only a paltry 4 bands of equalization. The Lokius is balanced, but around 3x the price of the T8 Pro and still only has 6 bands of EQ. These are both nice units, but I can say assuredly that I prefer the T8 Pro. I really think you need to step up to one of the Freyas at several times the price before you get superior sound and customization to the T8 Pro. If you're looking for an equalizer, especially one that is tube based or which offers balanced inputs and outputs, don't sleep on this deal. I really couldn't be much happier with it.

Great little EQ, tube preamp. The tubes are very subtle as they should be. Some complain they can't hear a difference, there IS. Sound stage will open up and it sounds a little warmer and fuller. I love the XLR outs for use with my crown amps powering classic Infinity Kappa 8s. Killer combo!!