Audiopipe TXX-BDC4 Series Subwoofer User's Manual

Introduction

Congratulations on your purchase of an Audiopipe subwoofer. Your Audiopipe subwoofer has been engineered to produce the highest quality sub-bass performance in your vehicle. Audiopipe dealers have the knowledge and skills to build high-quality enclosures that will maximize the performance of your subwoofer. It is highly recommended that you have your enclosure built by an Audiopipe authorized dealer. For more dealer information in your area, please visit your authorized Audiopipe dealer.

All Audiopipe products are designed, manufactured, and tested to perform in harsh environments. From our entry-level products to our high-end series, Audiopipe is your best choice for competition-level performance. We welcome you to Team Audiopipe.

Audiopipe Limited Warranty

Audiopipe warrants this Subwoofer to be free of defects in material and workmanship for a period of 1 year from the original purchase date with original receipt. Products found to be defective during the warranty period will be repaired or replaced (with a product deemed to be equivalent) at Audiopipe's discretion. Warranty replacements may have some cosmetic scratches and blemishes. This warranty only applies to the original purchaser of the product purchased from an Audiopipe authorized dealer.

Limit on Implied Warranties

Any applicable implied warranties are limited in duration to the period of the express warranty as provided herein, beginning with the date of the original purchase at retail. No warranties, whether express or implied, shall apply to this product thereafter. Some states do not allow limitations on implied warranties, therefore these exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

What is Not Covered

• The cost of shipping
• Damage due to improper installation
• Any cost or expense related to the removal or reinstallation of product
• Product with a defaced, altered, or removed serial number
• Freight damage
• Product not purchased from an authorized dealer
• Damage through negligence, misuse, accident, or abuse; repeated returns may be considered abuse

How to Obtain Service

All warranty returns should be sent to Audiopipe freight prepaid and must be accompanied by proof of purchase (a copy of the original receipt) listing the customer name, dealer's name, invoice number, and product purchased. Items sent freight collect or COD will be refused. Call the Audiopipe customer service number 9 am to 5 pm eastern standard time at 1-877-AUDIOPIPE (1-877-283-4674) for a return authorization number (RMA). Package all defective items in the original package or in a package that will prevent shipping damages and return to Audiopipe, 1195 NW 97th Ave, Miami, Florida 33172. Audiopipe strives to maintain a goal of 24-hour return following receipt of the goods. Delays may be incurred if replacement inventory or parts are encountered.

Dimensions

The following diagram illustrates the key dimensions for the TXX-BDC4-18 and TXX-BDC4-18D2 subwoofers.

Features and Specifications

Features

• Dual Voice Coil BASV
• Powdered Black Paint Aluminum Basket
• Patent Pipe Multi-Connect Terminal
• Dual Magnet

Specifications

Building an Enclosure

When building an enclosure, the walls should be as rigid as possible and not flex. Flexing of the enclosure can drastically decrease your subwoofer's performance. It is recommended that enclosures be built using 1" MDF, be glued and secured with nails or screws. Add bracing to each of the larger unsupported panels. Your enclosure's construction has a significant bearing on how well your subwoofers perform. When designing your enclosure, keep in mind and account for wood thickness, port, and woofer displacement.

Sealed Enclosure Volume:

2.25 - 5.5 ft³

Ported Enclosure Volume:

4.25 - 7.5 ft³

Use 12.5 in² of port area per cubic foot of internal volume in the enclosure. This is ideal for most daily installations. Surface area is the width of the port multiplied by the height of the port.

Example: For a 2.0 ft³ enclosure, 25 in² of port surface area is recommended.

With 12.5 in² of port area per cubic foot, you can use the following lengths to achieve desired tuning frequencies:

• 16" woofer: 40 Hz
• 20" woofer: 36 Hz
• 25" woofer: 33 Hz
• 32" woofer: 30 Hz

With any Audiopipe subwoofers, it is recommended to tune no higher than 38 Hz for daily music use.

Wiring Subwoofers

When designing your system, it is important to achieve a good power match between your subwoofer amplifier and the subwoofer's capability. RMS power should be considered as the primary method of driving the subwoofer. Make use of the power without drastically overdriving the amplifier. Amplifiers cannot read how many subwoofers are in the connection; they normally read the final impedance or, otherwise known as ohms. It is important to properly match your amplifier's normal operating impedance with the right subwoofer configuration.

Wiring Options

The TXX-BDC4 series of subwoofers are available with dual 4 Ohms voice coils. Both coils must be connected to a source of amplification. A dual 4 Ohms woofer can be configured in parallel to provide a 2 Ohm load. A dual 4 Ohms woofer can also be configured in series to provide an 8 Ohm load. The terminal with red markings is the positive (+), while the black terminals represent the negative (-).

4 ohm DVC Speaker = 2 ohm Load (Parallel)

2 ohm DVC Speaker = 4 ohm Load (Parallel)

4 ohm DVC Speaker = 1 ohm Load (Parallel)

2 ohm DVC Speaker = 2 ohm Load (Parallel)

4 ohm DVC Speaker = 8 ohm Load (Series)

4 ohm DVC Speaker = 2.67 ohm Load (Complex Configuration)

4 ohm DVC Speaker = 2 ohm Load (Parallel - Duplicate Diagram)

2 ohm DVC Speaker = 4 ohm Load (Parallel - Duplicate Diagram)