--- product_id: 185643374 title: "3 Channels Preamplifier Tone Board Audio Bass Treble Control Equalizer Board works on 12-0-12 transformer and better IC" brand: "electronic spices" price: "€ 10.96" currency: EUR in_stock: true reviews_count: 8 category: "Electronic Spices" url: https://www.desertcart.hr/products/185643374-3-channels-preamplifier-tone-board-audio-bass-treble-control-equalizer store_origin: HR region: Croatia --- # 12-0-12V transformer powered 3-channel tone control High-quality potentiometer 3 Channels Preamplifier Tone Board Audio Bass Treble Control Equalizer Board works on 12-0-12 transformer and better IC **Brand:** electronic spices **Price:** € 10.96 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound game with precision and clarity! ## Quick Answers - **What is this?** 3 Channels Preamplifier Tone Board Audio Bass Treble Control Equalizer Board works on 12-0-12 transformer and better IC by electronic spices - **How much does it cost?** € 10.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/185643374-3-channels-preamplifier-tone-board-audio-bass-treble-control-equalizer) ## Best For - electronic spices enthusiasts ## Why This Product - Trusted electronic spices brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Lightweight:** Sleek 10x4x10 cm design weighing just 250g fits effortlessly into any audio setup. - • **Optimized Passive Design:** Eliminates ground loop interference for pure, clutter-free sound clarity. - • **Stable & Crisp Sound Output:** High-quality potentiometer ensures consistent, noise-free audio performance. - • **Robust Transformer Compatibility:** Works seamlessly with 12-0-12V transformers for reliable power delivery. - • **Precision 3-Channel Audio Control:** Fine-tune treble, bass, and balance for a personalized soundscape. ## Overview The Electronic Spices 3 Channels Preamplifier Tone Board is a compact, transformer-powered audio equalizer featuring independent treble, bass, and balance controls. Its optimized passive circuit design minimizes ground loop noise, delivering rich, stable sound output with high-quality potentiometers. Ideal for audiophiles seeking precise tonal adjustments in a sleek, reliable package. ## Description This is an optimized version of the passive preamplifier tone board, the circuit uses the optimized version of the high and low tone adjustment circuit, the sound details rich. Passive design, no ground loop at the end of the problem! And independent design with shielded ground, and audio signal ground completely separated, the clutter will not chaos string! Review: Best - Super Review: Superb - Product as described. Kindly mentioned that there is no transformer 12-0-12 supply. The board have a +/- 12-0-12 dc ractifie power supply. I'm using it my custom made LM3886 board. 150w mono channel. I have two LM3886 board . This board is stereo board that support dual channel but I want make an individual channel. So I ordered two board and connect them separately for each channel. I have ractifie 12-0-12 ac to dc and the voltage output i get is 18-0-28. So guys don't worry it's working wide range of 9-0-9 dc to 20-0-20 dc. Sound output is fabulous. Blindly go for it. The board is not coming with 3 pin connector, connection digram manual and Potentiometer knob otherwise I give 5 🌟. Thanks You ## Features - 3 Channels Preamplifier Tone Board Audio Bass Treble Control - High quality potentiometer contacts well, stable for audio output. - Adjustment Types: 3 channels(treble+bass+balance). - this is a pre-amplifier, bass frequency processing, with bass volume potentiometer control of the bass amplifier board. - This amplifier works on 12 0 12 transformer, this feature helps you to play your 12 0 12 circuit ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0849Y1J87 | | Best Sellers Rank | #135,571 in Electronics ( See Top 100 in Electronics ) #14 in Pre-Amplifiers | | Brand | Electronic Spices | | Colour | multi | | Country of Origin | India | | Customer Reviews | 3.7 3.7 out of 5 stars (332) | | Date First Available | 28 January 2020 | | Generic Name | Amplifer | | Importer | Electronic spices, E-1/103 JAITPUR EXTN-1 SOUTH DELHI BADARPUR 110044 | | Included Components | Amplifer | | Item Dimensions LxWxH | 10 x 4 x 10 Centimeters | | Item Height | 10 Centimeters | | Item Weight | 250 g | | Item Width | 40 Millimeters | | Item model number | DFGHREGRRHTICPO10 | | Manufacturer | Electronic Spices, Electronic spices, E-1/103 JAITPUR EXTN-1 SOUTH DELHI BADARPUR 110044 | | Model number | DFGHREGRRHTICPO10 | | Net Quantity | 1 Count | | Number of Memory Sticks | 1 | | Packer | Electronic spices, E-1/103 JAITPUR EXTN-1 SOUTH DELHI BADARPUR 110044 | | Product Dimensions | 10 x 4 x 10 cm; 250 g | ## Images ![3 Channels Preamplifier Tone Board Audio Bass Treble Control Equalizer Board works on 12-0-12 transformer and better IC - Image 1](https://m.media-amazon.com/images/I/71paFodteKL.jpg) ## Questions & Answers **Q: Does this have bass, mid and treble control or just bass and treble? name says 3 channel eq, but in the image, one pot seems to be for volume.** A: BASS, TREBLE, BALANCE L/R. **Q: is it needed dual power supply ie, -12 , 0, +12?** A: Yes. **Q: what should be the ampere value for supply?** A: I use 12 0 12 transformer. After dc filter the voltage is 19 0 19. Don't worry. Its wide range voltage support up to 9 0 9 to 20 0 20 dc . 1 Amp is Sufficient. It takes only 12W. no need much power. I'm using my old 12 0 12 3Amp .transformer. **Q: Can I use here 12-0 volt DC directly?** A: No man . There is no way for 12-0v dc. Its dual power supply board. Recommended 12-0-12 volt to 20-0-20 volt. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best *by J***A on 3 November 2025* Super ### ⭐⭐⭐⭐ Superb *by S***H on 7 March 2020* Product as described. Kindly mentioned that there is no transformer 12-0-12 supply. The board have a +/- 12-0-12 dc ractifie power supply. I'm using it my custom made LM3886 board. 150w mono channel. I have two LM3886 board . This board is stereo board that support dual channel but I want make an individual channel. So I ordered two board and connect them separately for each channel. I have ractifie 12-0-12 ac to dc and the voltage output i get is 18-0-28. So guys don't worry it's working wide range of 9-0-9 dc to 20-0-20 dc. Sound output is fabulous. Blindly go for it. The board is not coming with 3 pin connector, connection digram manual and Potentiometer knob otherwise I give 5 🌟. Thanks You ### ⭐⭐⭐ Not original but good *by W***R on 14 June 2021* It doesn't have original ic they have copy ic but the board is working fine and does the job, pcb quality is good potentiometer is also acceptable The bass and treable has 100% control through the board I am using it as pre amp, bass and treble ## Frequently Bought Together - Electronic Spices 3 Channels Preamplifier Tone Board Audio Bass Treble Control Equalizer Board works on 12-0-12 transformer and better IC - Easy Power (110-260) VAC to Dual +12 & -12 VDC Power Supply Module --- ## 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.hr/products/185643374-3-channels-preamplifier-tone-board-audio-bass-treble-control-equalizer](https://www.desertcart.hr/products/185643374-3-channels-preamplifier-tone-board-audio-bass-treble-control-equalizer) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-17*