--- 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: "55 zł" currency: PLN in_stock: true reviews_count: 1 category: "Generic" url: https://www.desertcart.pl/products/604120171-jtech-sub-bt-board-2-1-channel-high-deep-bass store_origin: PL region: Poland --- # Dual 24V-40V Power Supply 2.1 Channel Audio Power Gain Control 14.5dB Boost 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:** 55 zł **Availability:** ✅ In Stock ## Summary > 🎵 Elevate Every Beat — Feel the Bass, Own the Sound! ## 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?** 55 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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 - • **Compact & Sleek Design:** At just 9x6x2 cm, this powerhouse fits effortlessly into any vehicle or audio rig without compromise. - • **Precision Gain Control:** Fine-tune your audio with an advanced 14.5dB gain circuit for flawless sound clarity and punch. - • **Immersive 2.1 Channel Sound:** Experience rich, deep bass and crisp treble that transforms your audio setup into a concert hall. - • **Versatile Dual Voltage Power:** Seamlessly operate between 24V and 40V DC for flexible installation and reliable performance. - • **Authentic High-Quality Components:** Built with genuine spare parts ensuring durability and premium sound fidelity. ## Overview The JTECH SUB+BT Board is a compact 2.1 channel audio preamplifier designed for vehicle subwoofers, featuring an improved high gain control circuit with a 14.5dB boost, delivering enhanced bass and treble clarity. It supports a wide dual power supply range from 24V to 40V DC, ensuring versatile and reliable performance. Engineered with genuine components, this board offers professional-grade sound enhancement in a sleek, space-saving form factor. ## 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 | #215,921 in Electronics ( See Top 100 in Electronics ) #404 in Hi-Fi Amplifiers | | Brand | Generic | | Country of Origin | India | | Customer Reviews | 3.4 3.4 out of 5 stars (10) | | 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/710VWrE-r1L.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/71yyWOjwwjL.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/71gOq8OEzoL.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/71R6fDyQQeL.jpg) ## Customer Reviews ### ⭐⭐⭐ GOOD *by M***R on 18 November 2025* GOOD ## Frequently Bought Together - 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 - LASER SUBWOOFER Board. HEAVY BASS BOOSTER Pre-Amplifier Gain Adjustable Preset. Frequency 50hz To 150hz Adjustable Preset Original Ic, 24v To 45v Dc Dual Supply --- ## 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.pl/products/604120171-jtech-sub-bt-board-2-1-channel-high-deep-bass](https://www.desertcart.pl/products/604120171-jtech-sub-bt-board-2-1-channel-high-deep-bass) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-23*