---
product_id: 604120171
title: "JTECH SUB+BT Board, 2.1 Channel, High Deep Bass and Treble, DC 24V to 40V Dual Power Supply, Inbuilt Gain Control (Gain14.5'Db) Hard Bass, IC Model"
brand: "generic"
price: "HK$82"
currency: HKD
in_stock: false
reviews_count: 1
url: https://www.desertcart.hk/products/604120171-jtech-sub-bt-board-2-1-channel-high-deep-bass
store_origin: HK
region: Hong Kong
---

# Dual 24V-40V Power Supply 2.1 Channel Audio Power Gain Control up to 14.5dB JTECH SUB+BT Board, 2.1 Channel, High Deep Bass and Treble, DC 24V to 40V Dual Power Supply, Inbuilt Gain Control (Gain14.5'Db) Hard Bass, IC Model

**Brand:** generic
**Price:** HK$82
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate Your Sound Game with JTECH SUB+BT – Feel Every Beat, Own Every Moment!

## Quick Answers

- **What is this?** JTECH SUB+BT Board, 2.1 Channel, High Deep Bass and Treble, DC 24V to 40V Dual Power Supply, Inbuilt Gain Control (Gain14.5'Db) Hard Bass, IC Model by generic
- **How much does it cost?** HK$82 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/604120171-jtech-sub-bt-board-2-1-channel-high-deep-bass)

## Best For

- generic enthusiasts

## Why This Product

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

## Key Features

- • **Precision Gain Control:** Fine-tune your audio with an inbuilt gain control circuit delivering up to 14.5dB for perfect sound balance.
- • **Compact & Durable Design:** Sleek 9x6x2 cm form factor built to fit effortlessly into your audio rig without compromising quality.
- • **Trusted Genuine Components:** Crafted with authentic parts for reliability and consistent high-fidelity sound output every time.
- • **Versatile Dual Voltage Power:** Seamlessly operates between 24V and 40V DC, ensuring compatibility and stable performance across setups.
- • **Deep, Rich Bass & Crystal Treble:** Experience immersive sound with enhanced low and high frequencies for a premium audio vibe.

## Overview

The JTECH SUB+BT is a 2.1 channel audio preamplifier board featuring an improved high gain control circuit with up to 14.5dB gain, delivering rich bass and crisp treble. It supports a wide DC power range from 24V to 40V, ensuring versatile compatibility. Compact and built with genuine components, it’s designed for audiophiles seeking enhanced sound precision and power in a durable, space-saving package.

## Description

JTECH 2.1 Channel Bass Treble Board This is an improved passive preamplifier board; the circuit incorporates an improved high Gain Control circuit, giving the sound rich detail, Increase High Sound Gain14.5'Db You may perform high and low Bass And Treble DC 24V to 40V Dual Power Supply

Review: GOOD - GOOD

## Features

- J-B-L,SUB PRE Maching, improved high Gain Control circuit
- SMOOTH BASS.all Spare is Genuine
- DC 24V to 40V Dual Power Supply

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRGHCBH6 |
| Best Sellers Rank | #167,609 in Electronics ( See Top 100 in Electronics ) #284 in Hi-Fi Amplifiers |
| Brand | Generic |
| Customer Reviews | 3.7 3.7 out of 5 stars (9) |
| Date First Available | 3 January 2024 |
| Item Dimensions LxWxH | 9 x 6 x 2 Centimeters |
| Item model number | JTECH- 2.1 SUB+BT |
| Manufacturer | JTECH AUDIOS SALEM |
| Model | JTECH- 2.1 SUB+BT |
| Number of items | 1 |
| Packer | GAYATRI TRADER'S |
| Product Dimensions | 9 x 6 x 2 cm |
| Speaker Surround Sound Channel Configuration | 2.1 |

## Images

![JTECH SUB+BT Board, 2.1 Channel, High Deep Bass and Treble, DC 24V to 40V Dual Power Supply, Inbuilt Gain Control (Gain14.5'Db) Hard Bass, IC Model - Image 1](https://m.media-amazon.com/images/I/51MF2tVndJL.jpg)
![JTECH SUB+BT Board, 2.1 Channel, High Deep Bass and Treble, DC 24V to 40V Dual Power Supply, Inbuilt Gain Control (Gain14.5'Db) Hard Bass, IC Model - Image 2](https://m.media-amazon.com/images/I/51atGUfIlWL.jpg)
![JTECH SUB+BT Board, 2.1 Channel, High Deep Bass and Treble, DC 24V to 40V Dual Power Supply, Inbuilt Gain Control (Gain14.5'Db) Hard Bass, IC Model - Image 3](https://m.media-amazon.com/images/I/51iMHcXpOJL.jpg)
![JTECH SUB+BT Board, 2.1 Channel, High Deep Bass and Treble, DC 24V to 40V Dual Power Supply, Inbuilt Gain Control (Gain14.5'Db) Hard Bass, IC Model - Image 4](https://m.media-amazon.com/images/I/51qfwC8rzqL.jpg)
![JTECH SUB+BT Board, 2.1 Channel, High Deep Bass and Treble, DC 24V to 40V Dual Power Supply, Inbuilt Gain Control (Gain14.5'Db) Hard Bass, IC Model - Image 5](https://m.media-amazon.com/images/I/710VWrE-r1L.jpg)

## Customer Reviews

### ⭐⭐⭐ GOOD
*by M***R on 18 November 2025*

GOOD

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.hk/products/604120171-jtech-sub-bt-board-2-1-channel-high-deep-bass](https://www.desertcart.hk/products/604120171-jtech-sub-bt-board-2-1-channel-high-deep-bass)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-26*