---
product_id: 592237191
title: "CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module"
brand: "centiot"
price: "2.28 DT"
currency: TND
in_stock: false
reviews_count: 8
url: https://www.desertcart.tn/products/592237191-centiot-xh-m802-passive-tone-board-pre-amplifier-preamp-bass
store_origin: TN
region: Tunisia
---

# Compact 5.5 x 2.8 cm size 2-channel precision control Adjustable bass & treble CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module

**Brand:** centiot
**Price:** 2.28 DT
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your sound game with precision tone control—because your audio deserves the spotlight!

## Quick Answers

- **What is this?** CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module by centiot
- **How much does it cost?** 2.28 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/592237191-centiot-xh-m802-passive-tone-board-pre-amplifier-preamp-bass)

## Best For

- centiot enthusiasts

## Why This Product

- Trusted centiot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tailor Your Tone:** Fine-tune bass and treble effortlessly to match your unique listening vibe or professional setup.
- • **Space-Savvy Design:** Sleek 5.5 x 2.8 cm footprint fits seamlessly into any audio rig without clutter.
- • **Dual-Channel Mastery:** Experience crisp, balanced sound with two independent channels for ultimate audio control.
- • **Effortless Integration:** Standard XH2.54 3-pin socket ensures quick, hassle-free installation in your existing system.
- • **Passive Power, Pure Sound:** No power needed—enjoy natural, distortion-free amplification that respects your original audio.

## Overview

The CentIoT XH-M802 is a compact, passive preamplifier tone board featuring dual channels with adjustable volume, bass, and treble controls. Designed for seamless integration via a standard XH2.54 3-pin socket, it offers a space-efficient 5.5 x 2.8 cm form factor and weighs just 20 grams. Ideal for audiophiles and professionals seeking refined sound customization without added power requirements.

## Description

The main function of the passive tuning board is to provide adjustment option to input audio signal for high and low frequency, and then sent to the amplifier board to further amplification The principle of the product is that the audio signal is directly filtered through the RC filter to get the desired high and low sound through the RC capacitor. The tone board does not need power supply, but the volume after processing will be much lower, hence need amplifer to feed into.

Review: Just magnificent - This is superb, the sound output is clean and distortion free, just make sure you have a high gain pre amp as it lowers the output by a bit.
Review: Nice product - Good passive tone board

## Features

- Product Name: Passive tone board
- Adjustable items: total volume treble bass
- Number of channels: 2-channel
- Knob spacing: 22.5mm
- Socket type: XH2.54 ~ 3P; Appearance size: 56.28mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CL7L164J |
| Best Sellers Rank | #168,228 in Electronics ( See Top 100 in Electronics ) #3,515 in Car & Vehicle Electronics (Electronics) |
| Brand | CentIoT |
| Brand Name | CentIoT |
| Customer Reviews | 3.4 out of 5 stars 71 Reviews |
| Included Components | 1 x Preamplifier / tone board |
| Item Dimensions | 5.5 x 2.8 x 2 Centimeters |
| Item dimensions L x W x H | 5.5 x 2.8 x 2 Centimeters |
| Manufacturer | CentIoT |
| Maximum Output Power | 0W |
| Model Number | XH-M802 |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Part Number | AU063-PAS-TONE-2CH |
| Specification Met | Passive |
| Unit Count | 1.00 Count |

## Product Details

- **Item dimensions L x W x H:** 5.5 x 2.8 x 2 Centimeters
- **Manufacturer:** CentIoT
- **Mounting Type:** Surface Mount
- **Brand:** CentIoT
- **Number of Channels:** 2

## Images

![CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module - Image 1](https://m.media-amazon.com/images/I/61pNHsdHoYL.jpg)
![CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module - Image 2](https://m.media-amazon.com/images/I/61ZR2DK5imL.jpg)
![CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module - Image 3](https://m.media-amazon.com/images/I/61ep4VO-xpL.jpg)
![CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module - Image 4](https://m.media-amazon.com/images/I/51b9BFeOcqL.jpg)
![CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module - Image 5](https://m.media-amazon.com/images/I/61JaFF08jNL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Just magnificent
*by T***H on 7 July 2025*

This is superb, the sound output is clean and distortion free, just make sure you have a high gain pre amp as it lowers the output by a bit.

### ⭐⭐⭐⭐ Nice product
*by K***E on 25 April 2026*

Good passive tone board

### ⭐⭐⭐⭐ Can be better 😄,also over priced
*by D***R on 17 September 2025*

I change the capacitors 224J100 to 100nf (104kA) for bass which gives me good bass if you want more deep bass you can replace these cap. To 127nf (25 hz ~) , For treble lovers replace the 233J100 to 220pF ( 14-16Khz) , i am currently replaced with 104 pF over the product is good after some modifications , it also reduced the volume 20-30% so,use the preamp module.

## Frequently Bought Together

- CentIoT - XH-M802 Passive Tone Board pre Amplifier preamp bass treble adjustment module
- Electronic Spices 3 Pin Xh Jst Wire Connector 2.5mm Pitch Male and Female Pair 2515 Pack of 20 Pair
- CentIoT - NE5532 Preamp with Treble mid Bass Volume Adjustment - Pre-Amplifier Tone Controller Board for Amplifier Board

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/592237191-centiot-xh-m802-passive-tone-board-pre-amplifier-preamp-bass](https://www.desertcart.tn/products/592237191-centiot-xh-m802-passive-tone-board-pre-amplifier-preamp-bass)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-27*