Mobile Electronics Race Radios and Components

CDT Audio

BM4 Kit1 2-Way Component Speaker System

$299.99

SKU: BM4-Kit1

In Stock
In Stock
Ships by Jul 29
Free Shipping
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.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCDT Audio
Part NumberBM4-Kit1
CategoryMobile Electronics

Buy with Confidence

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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