--- product_id: 116193151 title: "OSD Audio Commercial 70V Transformer for Speakers, 20W, 15W, 10W, 5W (1, 3, (3 Pack)" brand: "osd audio" price: "4558882₫" currency: VND in_stock: true reviews_count: 8 category: "Osd Audio" url: https://www.desertcart.vn/products/116193151-osd-audio-commercial-70v-transformer-for-speakers-20w-15w-10w store_origin: VN region: Vietnam --- # 20W max power taps 20Hz-20kHz ±1dB frequency response Dual impedance: 8 & 4 ohms OSD Audio Commercial 70V Transformer for Speakers, 20W, 15W, 10W, 5W (1, 3, (3 Pack) **Brand:** osd audio **Price:** 4558882₫ **Availability:** ✅ In Stock ## Summary > 🔊 Transform your soundscape with precision power! ## Quick Answers - **What is this?** OSD Audio Commercial 70V Transformer for Speakers, 20W, 15W, 10W, 5W (1, 3, (3 Pack) by osd audio - **How much does it cost?** 4558882₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/116193151-osd-audio-commercial-70v-transformer-for-speakers-20w-15w-10w) ## Best For - osd audio enthusiasts ## Why This Product - Trusted osd audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Robust:** Small 3.5" x 2.5" x 2" footprint packs heavy-duty performance without bulk. - • **Seamless Integration:** Compatible with standard in-wall and in-ceiling speakers for effortless 70V system upgrades. - • **Effortless Installation:** Double-sided adhesive tape included for quick, secure mounting without hassle. - • **Crystal-Clear Sound Fidelity:** Wide 20Hz-20kHz frequency response with ±1dB accuracy ensures pristine audio clarity. - • **Power Flexibility at Your Fingertips:** Four selectable wattage taps (20, 15, 10, 5W) to perfectly match your audio setup. ## Overview The OSD Audio Commercial 70V Transformer is a compact, high-performance device designed to adapt standard in-wall and in-ceiling speakers for 70-volt music and paging systems. Featuring four selectable power taps (5W to 20W), dual impedance options (8 and 4 ohms), and a wide frequency response (20Hz-20kHz ±1dB), it delivers clear, distortion-free audio. Easy to mount with included adhesive tape, this transformer is ideal for professional installations seeking reliable, scalable sound solutions. ## Description Allows standard in-ceiling and in-wall speakers to be adapted for use with 70-volt music and paging systems. Review: Great transformers, work as needed! - The transformers were perfect. I redid an install where they had twleve speakers running from one larger transformer. After I redid the wiring, we had one transformer per speaker unit. this got rid a lot of distortion which was in the older version of this system. Review: excellent quailty 70 volt transformers. - I used these to convert 8-ohm ceiling speakers to 70-volt operation for use in a small restaurant. They are heavy enough to cause me to believe they can handle the rated power without saturation at low frequencies. In my install I used lower wattage taps. The speakers sound great using the 70-volt system. ## Features - Primary taps: 20, 15, 10, 5W - Secondary impedance: 8, 4 ohms - 20Hz-20kHz ± 1dB frequency response - Double side adhesive tape for easy mounting - Dimensions: 3½W x 2½H x 2"D ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06XWMMN9B | | Best Sellers Rank | #100,854 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Audio Transformers | | Brand | OSD Audio | | Brand Name | OSD Audio | | Customer Reviews | 4.3 out of 5 stars 73 Reviews | | Item Dimensions D x W x H | 2"D x 3.5"W x 2"H | | Manufacturer | OSD Audio | | Maximum Frequency | 20000 Hz | | Minimum Frequency | 20 Hz | | Model | OSD Audio | | Mounting Type | in ceiling, in wall | | Power Source | Corded Electric | | Product Dimensions | 2"D x 3.5"W x 2"H | | Specification Met | UL | | UPC | 819603012880 | | Warranty Description | 1-Year Warranty | ## Product Details - **Brand:** OSD Audio - **Mounting Type:** in ceiling, in wall - **Power Source:** Corded Electric - **Product Dimensions:** 2"D x 3.5"W x 2"H - **Specification Met:** UL ## Images ![OSD Audio Commercial 70V Transformer for Speakers, 20W, 15W, 10W, 5W (1, 3, (3 Pack) - Image 1](https://m.media-amazon.com/images/I/51HzUun9QmL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great transformers, work as needed! *by J***R on January 28, 2018* The transformers were perfect. I redid an install where they had twleve speakers running from one larger transformer. After I redid the wiring, we had one transformer per speaker unit. this got rid a lot of distortion which was in the older version of this system. ### ⭐⭐⭐⭐⭐ excellent quailty 70 volt transformers. *by A***S on February 1, 2025* I used these to convert 8-ohm ceiling speakers to 70-volt operation for use in a small restaurant. They are heavy enough to cause me to believe they can handle the rated power without saturation at low frequencies. In my install I used lower wattage taps. The speakers sound great using the 70-volt system. ### ⭐⭐⭐⭐ Big heavy transformer *by T***. on April 12, 2016* This transformer is physically very large and heavy. This made it unsuitable for my project as a piezo driver in a very low power portable speaker system, but it worked well for its intended use later. --- ## 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.vn/products/116193151-osd-audio-commercial-70v-transformer-for-speakers-20w-15w-10w](https://www.desertcart.vn/products/116193151-osd-audio-commercial-70v-transformer-for-speakers-20w-15w-10w) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-16*