--- product_id: 369830107 title: "Speaker Protection Board - 2 Channel Compact for Stereo Amplifiers" brand: "mypcb" price: "€ 5.43" currency: EUR in_stock: false reviews_count: 3 url: https://www.desertcart.sk/products/369830107-speaker-protection-board-2-channel-compact-for-stereo-amplifiers store_origin: SK region: Slovakia --- # 2s Turn-On Delay 10A High Current Relay ±2V DC Fault Detection Speaker Protection Board - 2 Channel Compact for Stereo Amplifiers **Brand:** mypcb **Price:** € 5.43 **Availability:** ❌ Out of Stock ## Summary > 🔊 Protect your sound, preserve your vibe — because your speakers deserve the best! ## Quick Answers - **What is this?** Speaker Protection Board - 2 Channel Compact for Stereo Amplifiers by mypcb - **How much does it cost?** € 5.43 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/369830107-speaker-protection-board-2-channel-compact-for-stereo-amplifiers) ## Best For - mypcb enthusiasts ## Why This Product - Trusted mypcb brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Turn-On Delay:** 2-second delay eliminates annoying on/off thumps and transient spikes, preserving audio clarity. - • **Precision DC Detection:** Triggers protection at as low as ±2 volts DC to prevent costly speaker damage. - • **Built-In Power Regulation:** Integrated rectifier and voltage regulator support up to 30V AC supply for versatile installation. - • **Robust 10A Sugar Cube Relay:** Handles high current loads up to 10 amperes for reliable speaker defense. - • **Dual-Channel Speaker Protection:** Safeguard both stereo channels with one compact board, ensuring balanced audio safety. ## Overview The Speaker Protection Board by MYPCB is a hand-assembled, dual-channel relay board designed to shield stereo amplifier speakers from DC faults and transient spikes. Featuring a high-current 10A sugar cube relay, ±2V DC detection sensitivity, and an integrated power regulator supporting up to 30V AC, it ensures reliable, noise-free speaker protection with a smart 2-second turn-on delay. Ideal for audiophiles seeking durable, professional-grade speaker safety. ## Description High Current - 10 ampere Max relay support ( standard sugar cube relay ) Dual Channel - Both Channel Speakers of Stereo amplifier can be protected with one board. DC Detection - as low as ±2 volt DC can trigger the relay and protect the speakers. Fault indication - in case of DC at speaker out and Relay will not turn on and connect the amplifier to speakers. On Board Regulator - Power supply rectifier and voltage regulators in built so this board can work with any supply AC up to 30 Volts Max. Turn on Delay - Delay of 2 Seconds so the speakers can be protected from on / off Transients. Review: This protection circuit needs absolutely separate 30v ac PS. - Device is working alright but ac supply should be connected ground to ground to the one half of the transformer, but transformer should be 30-0-30v AC other wise separate 30v ac winding or small 15-0-15v ac transformer required. Review: Not as described - This product claims it protects loudspeaker, but this is restricted to 12V max 30V but Amplifier works on 50V 0 50 V (100V). If I give external supply 12 to 20V it doesn't work.. ## Features - High Current - 10 ampere Original Leone sugar cube relay - Turn on delay to Prevent on / off Thump and Transients - ±2 volt DC detection,up to 600 watt Amplifier support. - works upto 30 volts AC supply - Made & Hand Assembled in India, Wiring Diagram, BOM (List of parts) & Instructions provided with Board ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09HX6MBLG | | Best Sellers Rank | #637,162 in Electronics ( See Top 100 in Electronics ) #1,129 in Hi-Fi Amplifiers | | Brand | MYPCB | | Brand Name | MYPCB | | Customer Reviews | 3.4 out of 5 stars 11 Reviews | | Manufacturer | Amphead Electro Works | | Maximum Supply Voltage | 5 Volts | | Minimum Supply Voltage | 30 Volts | | Model Number | LYNX ASM | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Package Type Name | Hand Assembled | | Specification Met | Technical Specifications | | Voltage | 30 Volts | ## Images ![Speaker Protection Board - 2 Channel Compact for Stereo Amplifiers - Image 1](https://m.media-amazon.com/images/I/71qzemZMBvL.jpg) ![Speaker Protection Board - 2 Channel Compact for Stereo Amplifiers - Image 2](https://m.media-amazon.com/images/I/51JMfYQv3SL.jpg) ![Speaker Protection Board - 2 Channel Compact for Stereo Amplifiers - Image 3](https://m.media-amazon.com/images/I/61MMbjbIl1L.jpg) ![Speaker Protection Board - 2 Channel Compact for Stereo Amplifiers - Image 4](https://m.media-amazon.com/images/I/61kFAq2SIGL.jpg) ![Speaker Protection Board - 2 Channel Compact for Stereo Amplifiers - Image 5](https://m.media-amazon.com/images/I/51SJeSROwQL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ This protection circuit needs absolutely separate 30v ac PS. *by P***B on 3 March 2022* Device is working alright but ac supply should be connected ground to ground to the one half of the transformer, but transformer should be 30-0-30v AC other wise separate 30v ac winding or small 15-0-15v ac transformer required. ### ⭐ Not as described *by S***R on 14 February 2022* This product claims it protects loudspeaker, but this is restricted to 12V max 30V but Amplifier works on 50V 0 50 V (100V). If I give external supply 12 to 20V it doesn't work.. ### ⭐ Speaker protection not so much good *by S***Y on 15 November 2023* Very bad --- ## 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.sk/products/369830107-speaker-protection-board-2-channel-compact-for-stereo-amplifiers](https://www.desertcart.sk/products/369830107-speaker-protection-board-2-channel-compact-for-stereo-amplifiers) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-29*