Adapter Plate 2.75″ to 3.5″ PR


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8178 Newington Rd, Lorton, VA, USA


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6709 Old Branch Avenue, Temple Hills, MD, USA


Don’t have a DD AUDIO dealer near you? Contact us online or call us at 405-239-2800 to purchase direct.

The ADP-2.75 adapter plate is designed to adapt 2.75 inch REDLINE Midrange Speakers (RL-M2.75) to factory speaker slots sized 3.5 inch.

ADP-2.75 – Adapter Plate 2.75″ to 3.5″ PR

Price (USD): Contact Dealer

Mounting brackets, adapters, and more designed to help you install your equipment in tricky spots or non-conventional ways.


The new REDLINE coaxials and component speakers were designed to take your daily listening to the next level without taking your hard earned cash.
These 2.75 inch speakers offer compact motors and baskets, making them ideal for a quick and easy drop-in installation.

A balance between power efficiency and power handling design elements allow these speakers to perform well at factory power levels, while they really come to life when paired with an aftermarket DD Audio amplifier.

Learn more about the DD REDLINE Series products.

DD Audio
4025 NW 36th Street
Oklahoma City, OK 73112
(405) 239-2800 | Fax: (405) 239-7100