They test a certain percentage of all products from the production line a second time to ensure that the quality meets their vigorous standards, and to make sure that there is never a batch of products with even a slight problem. During production every product is tested and on top of that Rockville goes the extra mile and has their high level product engineers do an additional quality control. Once production begins, Rockville sends product engineers to their factory to quality control every line of production. Rockville makes products that are virtually un-breakable! Rockville is one of the only brands in its class to test every concept model for weeks or months before starting production. All user functions are tested and all internal components are tested for quality. Products go through months of extensive testing before they reach your hands. All Rockville products go through the most rigorous quality control standards in the industry. The Rockville brand stands for Quality, Innovation and Value. Net Volume Per Sub (Measurement for the outer dimensions of the box less the thickness of the wood): 1.0 Cubic FeetДЄbout Rockville Quality Control Procedures:.

Gross Volume Per Sub (Measurement for the outer dimensions of the box): 1.3 Cubic Feet.Mounting Depth: up to 10' (enough depth for any sub on the market).Dimensions in Inches: 28' L x 13' W x 13 H'.These enclosures are built with the quality additives needed to maximize the performance of any sound system. Designed, tested, and engineered to work with most of todayвЂ™s popular woofers.High quality GOLD spring loaded terminals.Top of the line Glue for extra durable adhesion.Proudly Made In The USA, Using Only The Finest Quality Materials - For The Best Level of Performance From Your Subs!.Rockville RD10 Dual 10' Sealed Subwoofer Enclosure.If that wasnвЂ™t enough we add a layer of silicon to every seam! This makes your Rockville enclosure rock even more! Your woofers will thank you! EVERY Rockville enclosure is not only glued at all joints but stapled as well. This will keep your box performing at an optimal level by not flexing and distorting your woofers. The ВѕвЂќ USA MDF is much stronger then any type of import wood. That means that the carpet will stay in place and not rip or tear. All Rockville enclosures come with a customized enhanced glue that is unmatched by any other manufacturer.

This enclosure is made with precision cutting machinery by industry experts that have been making these enclosures in the USA for over 20 years. The RD10 dual sealed speaker box is made in the USA with Grade вЂњAвЂќ ВѕвЂќ MDF wood.

Optimum Ported Box Volume 1.3 cubic feet.

Recommended Enclosure Type Ported / Vented.

8 AWG Push Terminals with VC Configuration Jumpers.

Progressive Spider with Reinforced Layer Tinsel Leads.

High Amplitude Multi-Roll (HAMR) Surround.

20 Drywall Wood Screws (Wood screws are the type of screws the screws are actually made of metal).

3/4' MDF Sealed Subwoofer Enclosure Sub Box

(2) Alpine S-W10D4 10' 1800 Watt Dual 4-Ohm Car Audio Subwoofers DVC Sub SW10D4.

Alpine s series 10 dual subwoofer box