Boston Acoustics CX4 4" Speaker

Researched details and purchase option

Boston Acoustics CX4 4" Speaker, my researched details and purchase option


Also see my other Audio Equipment For Sale

Boston Acoustics CX4 4" Speaker - 4 ohm, 20W nom., 40W peak. Copolymer diaphragms. 13mm tweeter with ferrofluid cooling.  12-80 watts rec amp power. - 90-20kHz frequency response (±3dB in-car). - 94mm Mounting Cutout Diameter.

The mounting frame is square with rounded corners.  This is not a round frame.  Can be used and probably was primarily used in car systems, but can be used in any system that can fit a 4 inch speaker.

The MSRP for this speaker is/was $150 per this site. I have one for sale (not a pair, just one) for $30, plus $5 to ship it, in the continental U.S only.  I tested it, and it works great.  Click here to go to my paypal where you can then buy it.  If you are not in the continental U.S. email me at and I'll see about calculating the shipping cost.

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