---
product_id: 723594852
title: "Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver)"
brand: "douk audio"
price: "AR$1096571"
currency: ARS
in_stock: false
reviews_count: 5
category: "Douk Audio"
url: https://www.desertcart.com.ar/products/723594852-douk-audio-hifi-vacuum-tube-7-band-eq-preamp-equalizer
store_origin: AR
region: Argentina
---

# Classic warm tube sound Dual XLR & RCA balanced I/O 7-band precise EQ control Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver)

**Brand:** douk audio
**Price:** AR$1096571
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your audio game with vintage warmth and modern precision — don’t just listen, experience!

## Quick Answers

- **What is this?** Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver) by douk audio
- **How much does it cost?** AR$1096571 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/723594852-douk-audio-hifi-vacuum-tube-7-band-eq-preamp-equalizer)

## 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

- • **Vintage Meets Modern:** Sleek aluminum chassis with vintage tube glow blends timeless style with cutting-edge shielding and durability.
- • **Flexible Tube Rolling:** Easily swap tubes (12AU7, ECC85, 6SN7GT, etc.) to customize your tonal signature and keep your sound evolving.
- • **Tailor Your Soundscape:** 7-band EQ lets you sculpt bass, mids, and treble with surgical precision for a truly personalized audio vibe.
- • **Tube-Driven Warmth & Depth:** Authentic Soviet 6H1N-BN tubes deliver rich, dynamic warmth that transforms every track into an immersive experience.
- • **Pro-Grade Balanced Connectivity:** Simultaneous XLR and RCA inputs/outputs ensure pristine, noise-free signal flow for your high-end setup.

## Overview

The Douk Audio T8 PRO is a high-fidelity vacuum tube preamp and 7-band equalizer featuring balanced XLR and RCA inputs/outputs. It offers precise frequency control across seven bands (50Hz to 16KHz) to tailor sound profiles, enhanced by warm, dynamic tube amplification using pluggable Soviet 6H1N-BN tubes. Its robust aluminum alloy chassis with vintage tube lighting combines durability with aesthetic appeal, making it a versatile centerpiece for audiophiles seeking customizable, professional-grade sound refinement.

## Description

Warm Tips 1. Two outputs (RCA / XLR ) can work at the same time. 2. 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. 3. Default 6H1N-BN tubes, can be changed to the following models: 12AU7 / ECC85 / 6SN7GT / 6N1 / 6AQ8... Parameters Model: Douk Audio T8 PRO 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 Packing List 1*T8 Preamp 2*6H1N-BN Tube 1*DC 12V Power Adapter 1*User Manual

Review: 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!
Review: I've had the Douk Audio T8 EQ for a few weeks now. I’ve tried it with my Yamaha A-S701 and Rotel A11 Tribute and compared the T8 to my Schiit Loki EQ. As much as the Loki sounds really clean and clear I prefer the Douk Audio T8 eq for several reasons. The 5 band eq of the Douk Audio has much more functionality than the 4 bands of the Loki, plus the balance and volume knobs are a nice addition. With the T8 I can easily adjust the 5 main points of the eq band: bass, low mid, mid, upper mid, and treble. With the 4 bands of the Loki, I always found adjusting the mids to be tricky and was never fully happy trying to dial in the sound I was looking for. The Douk Audio made dialing in the sound straight forward and a breeze. I used a switcher to quickly add and remove the T8 eq from the signal chain to hear what it was doing. I had the knobs of the T8 at unity in the 12 o'clock position and compared it to the sound of the amps without the eq in the chain and the sound with the T8 in the chain got quieter. To fix this I turned up the volume on the T8 a little below the 3 o'clock position which put the volume at unity with the system. I was not unhappy with this because there is quite a lot more volume to be had beyond the 3 o’clock position. This unit can definitely boost your signal if you need it too. Once at unity volume I could assess the sound of the T8 and I was very pleased. The only difference with the T8 in the chain was it added a pleasant mild warmth to the sound which was appreciated. I’m guessing it’s the tubes in action. From there I just made some easy eq adjustments to taste. To me, if you want an eq, this thing is a no brainer. I’m really happy with it.

## Features

- 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.
- It features dual RCA/XLR outputs, neutral frequency settings at the midpoint of the knobs, and is equipped with default 6H1N-BN tubes that can be interchanged with models like 12AU7, ECC85, 6SN7GT, 6N1, or 6AQ8 for enhanced audio performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CGXMGY29 |
| Amplifier Type | Tube |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #1,230,379 in Electronics ( See Top 100 in Electronics ) #1,875 in Hi-Fi Amplifiers |
| Brand | Douk Audio |
| Compatible Devices | Guitar, Double Bass, Keyboard, All |
| Country of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (59) |
| Date First Available | 2 May 2025 |
| Item Dimensions LxWxH | 12.8 x 18.6 x 3.8 Centimeters |
| Item Weight | 685 g |
| Item model number | SUC-T8-PRO-S |
| Manufacturer | Douk Audio |
| Material | Electrolytic Iron, Aluminum Alloy |
| Model | SUC-T8-PRO-S |
| Model Name | T8 PRO |
| Mounting Hardware | 1*DC 12V Power Adapter, 1*T8 Preamp, 1*User Manual, 2*6H1N-BN Tube |
| Power Source | Corded Electric |
| Product Dimensions | 12.8 x 18.59 x 3.81 cm; 684.92 g |
| Speaker Output Channel Quantity | 2 |

## Product Details

- **Brand:** Douk Audio
- **Colour:** T8 PRO Silver
- **Compatible Devices:** Guitar, Double Bass, Keyboard, All
- **Material:** Electrolytic Iron, Aluminum Alloy
- **Product Dimensions:** 96.5D x 18.6W x 3.8H Centimeters

## Images

![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver) - Image 1](https://m.media-amazon.com/images/I/61lfXsPkTUL.jpg)
![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver) - Image 2](https://m.media-amazon.com/images/I/71MKjgdppJL.jpg)
![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver) - Image 3](https://m.media-amazon.com/images/I/71-7YC-iSzL.jpg)
![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver) - Image 4](https://m.media-amazon.com/images/I/71l94EGBWqL.jpg)
![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver) - Image 5](https://m.media-amazon.com/images/I/71laoKphStL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: What does this device do?**
A: 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.

**Q: Can I use RCA and XLR outputs simultaneously?​​**
A: Yes! Both outputs work concurrently - connect XLR to studio monitors and RCA to a subwoofer simultaneously. Ideal for multi-amp setups without signal degradation. Perfect for A/B testing or expanding your audio chain.

**Q: How do I reset EQ frequencies to neutral?​**
A: Rotate any band's knob until you feel a tactile pause at the center position (scale line vertical). This zero point means no boost/cut applied. Reset all knobs to center for flat reference response.

**Q: What tubes can I upgrade to?**
A: Stock 6H1N-BN tubes support direct swaps with 6N1/6AQ8/ECC85. For 6SN7GT tubes, you MUST use a 6SN7-to-6N1 adapter (not included). Adapter ensures proper pin alignment and voltage safety.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***. on 2 October 2025*

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!

### ⭐⭐⭐⭐⭐ Review
*by A***N on 14 February 2023*

I've had the Douk Audio T8 EQ for a few weeks now. I’ve tried it with my Yamaha A-S701 and Rotel A11 Tribute and compared the T8 to my Schiit Loki EQ. As much as the Loki sounds really clean and clear I prefer the Douk Audio T8 eq for several reasons. The 5 band eq of the Douk Audio has much more functionality than the 4 bands of the Loki, plus the balance and volume knobs are a nice addition. With the T8 I can easily adjust the 5 main points of the eq band: bass, low mid, mid, upper mid, and treble. With the 4 bands of the Loki, I always found adjusting the mids to be tricky and was never fully happy trying to dial in the sound I was looking for. The Douk Audio made dialing in the sound straight forward and a breeze. I used a switcher to quickly add and remove the T8 eq from the signal chain to hear what it was doing. I had the knobs of the T8 at unity in the 12 o'clock position and compared it to the sound of the amps without the eq in the chain and the sound with the T8 in the chain got quieter. To fix this I turned up the volume on the T8 a little below the 3 o'clock position which put the volume at unity with the system. I was not unhappy with this because there is quite a lot more volume to be had beyond the 3 o’clock position. This unit can definitely boost your signal if you need it too. Once at unity volume I could assess the sound of the T8 and I was very pleased. The only difference with the T8 in the chain was it added a pleasant mild warmth to the sound which was appreciated. I’m guessing it’s the tubes in action. From there I just made some easy eq adjustments to taste. To me, if you want an eq, this thing is a no brainer. I’m really happy with it.

### ⭐⭐⭐⭐⭐ Review
*by T***N on 19 April 2024*

I bought this in HiYO Silver(!) to use with my heaphone setup here in the Bat-Cave. It is excellent in doing what it says it does and that being allowing me to tailor the music I bought and paid for so that I can hear as I want and not just as so much fAdCopy today claims, "...as the fArteeest intended". The artist intended for you to buy and enjoy their music and this excellent performing (and looking!) EQ does just that. I use it with an Emotiva XDA-2, an S.M.S.L. smurtified THX headphone amp w/balanced and SE in/ouputs and a WONDERFUL Denon HEOS Link for my paid for music services: Pandora, SiriusXM and Amazon UHD Music. They all sound wonderful through this setup and It works superbly across the 5 'phones that to date I have used with it. You will not be disappointed. Well...Unless you enjoy straining to hear bits instead of music. I can't hear a single "bit", 0, 1 or otherwise. What I am hearing is MY soundtrack, beautifully reproduced and tailored to MY tastes by a compact, well built and good looking piece of audio equipment. I may get one for a relative for his headphone use. It is that good! Trust me. I know what I'm doin' when I'm reviewin'. Thanks! TheBatman

## Frequently Bought Together

- Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver)
- Monoprice Premium Two-Channel Audio Cable - 3 Feet - Black | 2 RCA Plug to 2 RCA Plug 22AWG, Male to Male

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-27*