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13438 L St.
Omaha, NE 68137


Hidden Subwoofer Enclosure for BMW X5 M

This enclosure fits (two) Type S 12" Alpine Subwoofers & (two) PDX Alpine Amplifiers.  This setup is completely hidden under the rear hatch-mat.  It was build in the space where the spare tire well is located.  This leaves the entire rear hatch with open space, creating the illusion that there is no audio system installed.  This bimmer will rock any block it drives through!  The custom enclosure is tuned perfectly to maximize the output of both 12" Type S Subwoofers.  These PDX Amplifiers were engineered for the highest sound quality with less than .05% distortion threshold rating.  The bass this bimmer makes surprises everyone near it!  Everyone asks us "WHERE ARE THE SUBS?" See for yourself in our YouTube video now!



Rockford Fosgate Certified Platinum Power Dealer


Inphase Audio is pleased to announce that we are a Rockford Fosgate Platinum Power Certified Retailer. 

A Platinum Power Retailer is the highest tier of certification offered by Rockford Fosgate. Inphase Audio has met and exceeded all the stringent guidelines required. This means that our customers receive the highest level of product knowledge, installation expertise, and product selection available. Prime, Punch, and Power series equipment, as well as the new Element Ready marine and Harley Davidson product lines, options are available for practically everything.

Stop in for your demo, and prepare to be blown away!


Rockford Fosgate Website


Flagship Retail SpecialistSelect U.S. Alpine retailers are designated as Flagship Retail Specialists. These "BEST OF THE BEST" retailers commit to giving you the ultimate Alpine experience.

Alpine USA has selected Inphase Audio as one of their Alpine Flagship Dealers. This is truly an honor. All Alpine Flagship dealers have to meet strict criteria for service, technology, and installation innovation.

We are very proud to be a part of this elite dealer program.  Alpine has set the requirements as the following; installation service expertise, vast knowledge of Alpine Product catalog, in-store merchandising, and an experienced sales team.  Our volume of sales and installation production must meet high-level quota to keep our Alpine Flagship status current as well.

An Alpine Flagship dealer provides several benefits to the customer. The first is the guarantee that Inphase Audio's sales staff has been trained in the latest technologies available. The professional installation staff is up to date on the most modern techniques, and the biggest advantage to the customer is the extra year of warranty on Alpine products, for a total of TWO years!

Inphase Audio has Alpine equipment on display for you to come in and hear the difference!

Alpine USA Website