{ "schema_version": 1, "id": 27203, "name": "BMW 3 Series E90 / E91 / E92 Front or Rear Alpine 4'' Speaker Upgrade Kit", "url": "https://dev.dynamicsounds.co.uk/bmw-3-series-e90-e91-e92-front-or-rear-alpine-4-speaker-upgrade-kit.html", "brand": "Alpine", "model": "S2-S40 + CT25BM08 + 41-022", "sku": "S2-S40 / CT25BM08 / 41-022", "gtin": "7427282720533", "mpn": "", "identifiers": { "model": "S2-S40 + CT25BM08 + 41-022", "sku": "S2-S40 / CT25BM08 / 41-022", "ean": "7427282720533" }, "description": "Package Includes\nAlpine S2-S40 S-Series (4”) 10cm 2-Way Coaxial Car Speakers\n10cm 4\" Front or Rear Door Speaker Adaptor\nSpeaker Cable Adaptor\nS2-S40\nNewly redesigned and Hi-Res Audio Certified, the Next-Generation S-Series S2-S40 10cm (4”) Coaxial Speakers offer a new standard in entry-level sound performance.\nWe packed supreme capability into these speakers by using highly effective materials and proprietary design elements. The lightweight woofer cone, crafted from a combination of polypropylene, glass fiber, and mica materials, serves up the essential high output / low distortion sound required for High-Res Audio performance. Alpine S-Series speakers feature increased magnet sizes for more power handling and best mid-bass performance in their category.\nThe woofer's High Amplitude Multi-Roll (HAMR) surround brings out the best in bass by allowing maximum cone movement. A 2cm (3/4\") dome tweeter serves up all the high-frequency detail you've been missing with your factory speakers.\nAll speakers in the S-Series line have a wide vehicle fitment range and include several adapters and spacers. Using in-line crossovers, these speakers can be installed quick and easy even at home.\nAlpine S-Series speakers are available in coaxial and component configurations and come in a variety of different sizes, such as 20cm, 16,5cm, 13cm, 10cm, 6x9 inches and 6x8 inches.\nThe New 2023 S-Series Speaker Line\nThe S-Series sound system line truly is the Music Lover’s Starter Pack, bringing amazing sound quality, exciting bass and even Hi-Res Audio playback into the customer’s vehicle at a very affordable price point. The S-Series speakers are available in 9 different configurations.\nHi-Res Audio Certified\nUsing “trickle-down” technology, inspired design, and performance cues from the Ultra-High-Resolution AlpineF#1Status system, the Next-Generation Alpine S-Series Speakers are now Hi-Res Audio Certified and able to reproduce up to 40kHz frequency response. This new benchmark in sound quality elevates the Next-Gen S-Series Speakers resulting in a more accurate and natural sound at an entry-level price point.\nClean, Accurate Audio\nCrafted with a unique combination of Poly Propylene, Glass-Fiber, and Mica Cone materials, the S2-S40 is designed for lightweight construction, high output, and low distortion, giving you a clean and accurate audio experience.\nHAMR Surround\nAlpine-exclusive High Amplitude Multi-Roll (HAMR) surround technology is integrated into the speaker design which allows for maximum cone movement, delivering powerful and accurate bass notes.\nExtensive Mounting Options\nThe S-Series S2-S40 is compatible with most 10cm installation locations in various vehicles. The steel basket features several screw brackets for different mounting applications.\nMade for S-Series Amps & Subs\nThe S-Series speakers are designed to perfectly match the Alpine S-Series amplifier and subwoofer line for perfect system building. S-Series components are designed to for customers that want to build a great sounding system without breaking the bank, for a fun and great sounding experience including Hi-Res Audio capabilities.\nGet Hi-Res Car Audio on a Budget with the Next-Gen Alpine S-Series Speakers\nJoin Alpine Brooks as he shows off the key features and benefits of the new Hi-Res S-Series Speaker line from Alpine, highlighting the latest technologies and showing you why these speakers are the new standard in entry-level sound performance.\n00:00 - Intro\n00:33 - S-Series Overview\n01:00 - Key Features & Benefits\n04:08 - Models Offered\n04:56 - Wrap Up\nFeatures\nGeneral\nWoofer Size: 10cm (4”)\nIntegrated 2cm (¾“) Tweeters (Coaxial)\nHi-Res Audio Certified (up to 40kHz)\nPoly Propylene, Glass Fiber, and Mica Cone Material\nLightweight Design with High Output and Low Distortion\nHigh-Amplitude Multi-Roll (HAMR) Surround\nSpecifications\nPower Handling\nPeak Power: 140 Watts\nRMS Power: 55 Watts\nDimensions Woofer\nCutout Diameter: 93.6 mm\nMounting Depth: 43.0 mm\nMounting Height: 13.3 mm\nMagnet: 75.0 mm\nGeneral\nFrequency Range: 100 Hz - 40 kHz (Hi-Res Audio Certified)\nImpedance: 4 Ohms\nSensitivity: 86 dB/W\nBMW and Mini Speaker Cable Adaptor\nBMW cars Used connect the original connector in the car to a pair of aftermarket speakers.\n{ note_speakers }", "category": [ "Speakers", "Speaker Upgrade Packs", "BMW", "3 Series" ], "tags": [ "3 Series", "E90 E91 E92" ], "images": [ "https://dev.dynamicsounds.co.uk/image/catalog/products/Speaker/Speaker-kit/BMW/S2-S40-CT25BM08-41-022-bmw3.jpg", "https://dev.dynamicsounds.co.uk/image/catalog/products/Speaker/ALpine/S2-S40/S2-S40-01.jpg", "https://dev.dynamicsounds.co.uk/image/catalog/products/Speaker/ALpine/S2-S40/S2-S40-02.jpg", "https://dev.dynamicsounds.co.uk/image/catalog/products/Speaker/ALpine/S2-S40/S2-S40-03.jpg", "https://dev.dynamicsounds.co.uk/image/catalog/products/Speaker/ALpine/S2-S40/S2-S40-04.jpg", "https://dev.dynamicsounds.co.uk/image/catalog/products/Connects2/CT25/CT25BM08-new-1.jpg", "https://dev.dynamicsounds.co.uk/image/catalog/products/AV-Accesories/41-022.jpg", "https://dev.dynamicsounds.co.uk/image/catalog/products/Speaker/Speaker-kit/BMW/3-series-alpine.jpg" ], "price": { "currency": "GBP", "amount": 138.99, "regular": 138.99, "on_sale": false, "sale_ends": null, "includes_tax": false }, "quantity_discounts": [], "availability": { "in_stock": true, "status": "in_stock", "stock_status": "", "minimum_quantity": 1 }, "attributes": [], "options": [ { "name": "Addons", "type": "checkbox", "required": false, "values": [ { "name": "Dashboard Door Panel Trim Removal Tool Kit (5 Pcs)", "price_adjustment": 12.99, "in_stock": true }, { "name": "Dashboard / Door Trim Removal & Precision Hook Set (9 Pcs)", "price_adjustment": 19.99, "in_stock": true }, { "name": "Dashboard Trim Tool Panel (4 Pack Assorted)", "price_adjustment": 7.99, "in_stock": true }, { "name": "Recoil PMBK Sound Deadening Sheets for 2 Doors", "price_adjustment": 19.99, "in_stock": true }, { "name": "DC 5V-90V Voltage Circuit Tester Digital Display", "price_adjustment": 14.99, "in_stock": true } ] } ], "dimensions": null, "weight": { "value": 2, "unit": "kg" }, "rating": null, "reviews": [], "shipping": { "country": "GB", "rate": 0, "currency": "GBP", "free": true, "handling_days": { "min": 0, "max": 1 }, "transit_days": { "min": 2, "max": 5 } }, "returns": { "accepted": true, "window_days": 14, "unlimited": false, "fees": "customer", "country": "GB", "policy_url": null }, "warranty": "1 Year Warranty on all items", "updated": "2026-10-07T10:36:24+01:00", "store": { "name": "Dynamic Sounds Ltd.", "url": "https://dev.dynamicsounds.co.uk/", "currency": "GBP" }, "vehicle_compatibility": { "header": "Speaker Adaptor kits allow aftermarket standard size speakers to be fitted into the original apertures of your car audio system.", "count": 1, "vehicles": [ { "make": "BMW", "model": "3 Series", "years": { "from": 2005, "to": 2012, "text": "2005 - 2012" }, "product_type": "Speaker Upgrade Packs", "notes": "E90 / E91 / E92" } ], "product_type_description": "0" } }