---
product_id: 539811457
title: "Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO)"
brand: "douk audio"
price: "€ 28.36"
currency: EUR
in_stock: false
url: https://www.desertcart.hr/products/539811457-douk-audio-hifi-vacuum-tube-7-band-eq-preamp-equalizer
store_origin: HR
region: Croatia
---

# Warm tube sound XLR & RCA outputs 7-band EQ control Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO)

**Brand:** douk audio
**Price:** € 28.36
**Availability:** ❌ Out of Stock

## Summary

> 🎵 Tune into Excellence: Where Vintage Meets Modern Audio Mastery!

## Quick Answers

- **What is this?** Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO) by douk audio
- **How much does it cost?** € 28.36 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/539811457-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

- • **Customize Your Tone:** Easily swap tubes for a personalized sound signature.
- • **Sleek & Stylish Design:** A vintage look that complements any audiophile's setup.
- • **Unmatched Audio Clarity:** Enjoy real balanced XLR preamp for superior sound separation.
- • **Versatile Compatibility:** Supports various tube models for enhanced performance.
- • **Elevate Your Sound Experience:** Transform your audio with precise 7-band frequency control.

## Overview

The Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer T8 PRO is a state-of-the-art audio device designed for audiophiles. It features a 7-band equalizer for precise frequency adjustments, balanced XLR and RCA outputs for high-quality audio reproduction, and a classic Soviet tube design that enhances sound warmth and detail. With its stylish aluminum chassis and customizable tube options, this preamp is perfect for anyone looking to elevate their home audio experience.

## 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 |
|---------------|-------|
| ASIN | B0C5MHZ68Y |
| Amplifier Type | Tube |
| Best Sellers Rank | #49,198 in Electronics ( See Top 100 in Electronics ) #32 in Audio Component Preamplifiers |
| Brand | Douk Audio |
| Built-In Media | 6H1N-BN Tube ×2, DC 12V Power Adapter ×1, T8PRO Preamp ×1, User Manual ×1 |
| Color | Black |
| Compatible Devices | Active Speakers, Amplifier, CD Player, PC, TV |
| Connector Type | RCA |
| Customer Reviews | 4.1 out of 5 stars 109 Reviews |
| Enclosure Material | Metal |
| Item Dimensions D x W x H | 5.04"D x 7.32"W x 1.5"H |
| Item Weight | 1.51 Pounds |
| Manufacturer | Douk Audio |
| Material | Metal |
| Model Name | SUC-T8-PRO-H |
| Number of Bands | 7 |
| Output Channel Quantity | 2 |
| Power Source | DC power supply |
| Product Dimensions | 5.04"D x 7.32"W x 1.5"H |
| Warranty Description | 18-Month Warranty |

## Product Details

- **Brand:** Douk Audio
- **Colour:** T8 PRO
- **Compatible devices:** Active Speakers, Amplifier, CD Player, PC, TV
- **Material:** Metal
- **Product dimensions:** 12.8D x 18.6W x 3.8H centimetres

## Images

![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO) - Image 1](https://m.media-amazon.com/images/I/61QYkRhiqbL.jpg)
![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO) - Image 2](https://m.media-amazon.com/images/I/81maTXUPfTL.jpg)
![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO) - Image 3](https://m.media-amazon.com/images/I/71nU2wXo0fL.jpg)
![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO) - Image 4](https://m.media-amazon.com/images/I/71ANic8iJYL.jpg)
![Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO) - Image 5](https://m.media-amazon.com/images/I/716vAFKNqbL.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)
- Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black
- Tan QY 2RCA to 2RCA Cable 3Ft, Gold-Plated 2 RCA Male to 2 RCA Male Stereo Audio Cable for Home Theater, HDTV, Gaming Consoles, Hi-Fi Systems (3Ft/1M)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-13*