--- product_id: 725191407 title: "BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters" brand: "boss audio systemsのストアを表示" price: "¥4502" currency: JPY in_stock: false url: https://www.desertcart.jp/products/725191407-boss-audio-systems-brs40-4-inch-replacement-car-door-speakers store_origin: JP region: Japan --- # 100Hz-18kHz Frequency Range 50W Max Power Polypropylene Woofer Cone BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters **Brand:** boss audio systemsのストアを表示 **Price:** ¥4502 **Availability:** ❌ Out of Stock ## Summary > 🎶 Upgrade your ride’s vibe with sound that commands attention! ## Quick Answers - **What is this?** BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters by boss audio systemsのストアを表示 - **How much does it cost?** ¥4502 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/725191407-boss-audio-systems-brs40-4-inch-replacement-car-door-speakers) ## Best For - boss audio systemsのストアを表示 enthusiasts ## Why This Product - Trusted boss audio systemsのストアを表示 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Build:** Polypropylene woofer cone and foam surround ensure long-lasting performance. - • **Wide Frequency Range:** Hear every detail from deep bass to sparkling highs with 100Hz to 18kHz response. - • **Powerful Sound Output:** 50 Watts max power delivers crisp, clear audio that transforms your drive. - • **Perfect Fit Replacement:** 4-inch size designed to seamlessly upgrade your car’s audio system. - • **Versatile Compatibility:** Works effortlessly with stereos and tweeters for a custom sound setup. ## Overview The BOSS Audio Systems BRS40 is a 4-inch full-range replacement car door speaker delivering up to 50 watts max power and a frequency response from 100Hz to 18kHz. Featuring a durable polypropylene woofer cone and foam surround, it’s sold individually and designed for seamless integration with existing stereos and tweeters, perfect for millennial professionals seeking a premium in-car audio upgrade. ## Description Replacement 4" 50W Full Range Speaker (Sold Single) ## Features - Full Range 4" Speaker Single - 50 Watts MAX 25 Watts RMS Power Handling - 100 Hz to 18 kHz Frequency Response and dB Sensitivity - Polypropylene Woofer Cone and Foam Surround - Sold Individually ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001RNNX8K | | GTIN (Global Trade Identification Number) | 00791489110341, 00999994548769 | | MP3プレーヤー付属 | いいえ | | UPC | 523161112950 999994548769 999994339039 617407313352 809186297385 328996141256 070071263581 072090792981 809385692271 100010956615 014445412151 791489110341 | | おすすめ度 | 4.4 5つ星のうち4.4 (1,040) var | | サブウーファースピーカーの直径 | 4 インチ | | スピーカーの種類 | _____ | | スピーカーサイズ:(cm) | 4 インチ | | ブランド名 | BOSS Audio Systems | | メーカー名 | BOSS Audio Systems | | レンズマウントの種類 | テーブルトップマウント | | 互換デバイス | MP3プレーヤー, スマートフォン, タブレット, デスクトップ, ノートパソコン | | 商品の推奨用途 | テレビ用 | | 商品の重量 | 0.87 ポンド | | 型番 | BRS40 | | 最大レンジ | 25 メートル | | 最大出力 | 50 ワット | | 管理方法 | 遠隔 | | 防水 | FALSE | | 電池の数 | 1 12V形 電池 | ## Product Details - **スピーカータイプ:** _____ - **スピーカー最大出力:** 50 ワット - **ブランド:** BOSS Audio Systems - **取り付けタイプ:** テーブルトップマウント - **商品の推奨用途:** テレビ用 ## Images ![BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters - Image 1](https://m.media-amazon.com/images/I/71Qu5c+NIEL.jpg) ![BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters - Image 2](https://m.media-amazon.com/images/I/81dc4myOVKL.jpg) ![BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters - Image 3](https://m.media-amazon.com/images/I/711nuqPvviL.jpg) ![BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters - Image 4](https://m.media-amazon.com/images/I/71dgTcxKaXL.jpg) ![BOSS Audio Systems BRS40 4 Inch Replacement Car Door Speakers - 50 Watts Max, Sold in Individually, Use With Stereo and Tweeters - Image 5](https://m.media-amazon.com/images/I/71U+ROx3iqL.jpg) ## Questions & Answers **Q: What is the ohm rating on these speakers?** A: 4 ohm's **Q: Does this fit 2011 Ram 1500 dash speaker?** A: The only sure way to tell is to take out the old speaker and measure it. If yours is not the size of the BRS35, there are other sizes available. **Q: is it important to use the plastic mounting ring?** A: Not if the speaker fits without them. I installed them in the front doors in my old Escort without them and they work fine. **Q: Is it a pair of speakers or just one speaker?** A: Just one at a time. So you really have to order 2 of them if you need a pair. Sold at unit. ## Frequently Bought Together - BOSS Audio Systems BRS40 50 Watt, 4 Inch , Full Range, Replacement Car Speaker - Sold Individually - Amazon Basics 16-Gauge Speaker Wire Cable, 50 feet, Transparent - Kinter K3118 Texas Instruments TI Digital Hi-Fi Audio Mini Class D Home Auto DIY Arcade Stereo Amplifier with 12V 3A Power Supply Black --- ## 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.jp/products/725191407-boss-audio-systems-brs40-4-inch-replacement-car-door-speakers](https://www.desertcart.jp/products/725191407-boss-audio-systems-brs40-4-inch-replacement-car-door-speakers) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-21*