---
product_id: 723594852
title: "HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver)"
brand: "douk audio"
price: "€ 620.84"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/723594852-hifi-vacuum-tube-7-band-eq-preamp-equalizer-xlr-pre
store_origin: SK
region: Slovakia
---

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

**Brand:** douk audio
**Price:** € 620.84
**Availability:** ✅ In Stock

## Summary

> 🎛️ Elevate your audio ritual with vintage warmth and modern precision!

## Quick Answers

- **What is this?** HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO Silver) by douk audio
- **How much does it cost?** € 620.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/723594852-hifi-vacuum-tube-7-band-eq-preamp-equalizer-xlr-pre)

## 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

- • **Warm Vintage Vibes:** Equipped with pluggable Soviet 6H1N-BN tubes for that rich, dynamic, and melodious tube warmth audiophiles crave.
- • **Flexible Tube Rolling:** Easily swap tubes (12AU7, ECC85, 6SN7GT, etc.) to customize your tonal signature and stay ahead in the audiophile game.
- • **Pro-Grade Connectivity:** Supports both balanced XLR and RCA inputs/outputs, ensuring pristine signal integrity and seamless integration with your high-end gear.
- • **Tailor Your Soundscape:** 7-band EQ lets you sculpt bass, mids, and treble with surgical precision for a truly personalized audio experience.
- • **Sleek & Shielded Design:** Robust aluminum chassis with electrolytic iron shielding delivers durability and noise-free performance wrapped in vintage cool.

## Overview

The Douk Audio T8 PRO is a high-fidelity 7-band vacuum tube preamp equalizer featuring balanced XLR and RCA inputs/outputs, precise frequency control from 50Hz to 16KHz, and a warm, dynamic tube sound via pluggable Soviet 6H1N-BN tubes. Its durable aluminum and iron chassis ensures noise shielding and longevity, while flexible tube rolling options let you tailor your sound signature. Perfect for audiophiles and professionals seeking rich, customizable sound with pro-level connectivity.

## 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

## 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 |
|---------------|-------|
| Brand | Douk Audio |
| Manufacturer | Douk Audio |
| Model | SUC-T8-PRO-S |
| Model Name | T8 PRO |
| Product Dimensions | 12.8 x 18.59 x 3.81 cm; 684.92 g |
| Item model number | SUC-T8-PRO-S |
| Compatible Devices | Guitar, Double Bass, Keyboard, All |
| Amplifier Type | Tube |
| Mounting Hardware | 1*DC 12V Power Adapter, 1*T8 Preamp, 1*User Manual, 2*6H1N-BN Tube |
| Power Source | Corded Electric |
| Batteries Included | No |
| Batteries Required | No |
| Speaker Output Channel Quantity | 2 |
| Material | Electrolytic Iron, Aluminum Alloy |
| Manufacturer | Douk Audio |
| Country of Origin | China |
| Item Weight | 685 g |

## 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

![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)

## 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.

## 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 Slovakia*
*Store origin: SK*
*Last updated: 2026-02-04*