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CDT Audio

BM4 Kit1 2-Way Component Speaker System

$299.99

SKU: BM4-Kit1

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The CDT Audio BM4 Kit1 is a 2-way component speaker system engineered specifically for select BMW models, offering a significant upgrade over factory audio. The system comprises a pair of 25mm silk dome tweeters with an oval mount, a pair of 100mm mid-range speakers featuring a cast aluminum construction for durability, and a pair of high-pass crossover networks for both the mid-range and tweeters. The mid-woofer utilizes a biological fiber cone for authentic sound reproduction, complemented by a butyl rubber edge and an integrated phase plug on the tweeter for improved dispersion. Compatibility is specified for a range of BMW models, including the 1 Series (2004-2011), 3 Series (2005-2011), 5 Series (2011-Current), 6 Series (2011-Current), 7 Series (2008-Current), and X1 (2009-2012), primarily for front and rear door applications. This ensures a tailored fit for these specific vehicles.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Available on iOS & Android

Specifications

BrandCDT Audio
Part NumberBM4-Kit1
CategoryMobile Electronics

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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