---
product_id: 539195815
title: "HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO)"
brand: "douk audio"
price: "¥59077"
currency: JPY
in_stock: true
category: "Douk Audio"
url: https://www.desertcart.jp/products/539195815-hifi-vacuum-tube-7-band-eq-preamp-equalizer-xlr-pre
store_origin: JP
region: Japan
---

# Upgradable vacuum tubes with warm analog tone Dual XLR/RCA balanced I/O 7-band precision EQ (50Hz-16KHz) HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO)

**Brand:** douk audio
**Price:** ¥59077
**Availability:** ✅ In Stock

## Summary

> 🎛️ Elevate your audio game 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) by douk audio
- **How much does it cost?** ¥59077 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/539195815-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

- • **Tailor Your Soundscape:** Professional 7-band equalizer lets you sculpt highs, mids, and lows for flawless audiophile-grade acoustics.
- • **Customizable Tube Warmth:** Swap vacuum tubes (6H1N-BN, ECC85, 6SN7GT) to personalize your signature analog sound.
- • **Interference-Free Clarity:** Balanced XLR and RCA inputs/outputs eliminate noise, ensuring pristine signal transmission every time.
- • **Sleek Vintage Meets Modern:** Compact aluminum chassis with EMI shielding and glowing tubes adds a stylish, noise-free centerpiece to your desktop.
- • **Flexible Studio Connectivity:** Simultaneous RCA/XLR outputs and input switching streamline integration with any amplifier or active speaker setup.

## Overview

The Douk Audio T8 PRO is a compact, professional-grade 7-band vacuum tube preamp equalizer featuring dual balanced XLR and RCA inputs/outputs for interference-free sound. It offers customizable analog warmth through upgradable vacuum tubes and precise frequency control from 50Hz to 16KHz, making it ideal for audiophiles and studio setups seeking tailored, high-fidelity audio performance.

## 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: ECC85 / 6SN7GT / 6N1 / 6AQ8, and the 6SN7GT requires a 6SN7 to 6N1 socket adapter. 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

- Professional 7-band equalizer (50Hz-16KHz) precisely adjusts highs/mids/lows to compensate speaker defects & optimize any sound source, delivering custom audiophile-grade acoustic profiles.
- Dual XLR/RCA inputs & outputs with balanced signal transmission eliminate interference noise, while independent channel balance control ensures accurate stereo imaging.
- Upgradable 6H1N-BN vacuum tubes generate warm HiFi analog sound signature; pluggable sockets support ECC85/6SN7GT tubes for personalized timbre sculpting.
- CH1/CH2 input switching & simultaneous RCA/XLR output modes enable flexible connectivity with amplifiers/active speakers, simplifying studio-grade setups.
- Compact aluminum chassis with EMI-shielding iron plate fits desktops seamlessly, featuring vintage tube glow for both aesthetic appeal and noise-free performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C5MHZ68Y |
| Best Sellers Rank | #122,705 in Electronics ( See Top 100 in Electronics ) #38 in Home Audio Preamplifiers |
| Item model number | SUC-T8-PRO-H |
| Manufacturer | Douk Audio |
| Product Dimensions | 12.8 x 18.59 x 3.81 cm; 684.92 g |

## Product Details

- **Brand:** Douk Audio
- **Colour:** T8 PRO
- **Compatible devices:** all
- **Material:** Metal
- **Product dimensions:** 12.8D x 18.6W x 3.8H centimeters

## Images

![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)

## 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.

## 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 Japan*
*Store origin: JP*
*Last updated: 2026-08-27*