The Down4Sound HiLoc7i 7-Channel Line Output Converter is the easiest way to add aftermarket amplifiers and subwoofers to your factory stereo. Engineered for clean integration, the HiLoc7i accepts your OEM high-level (speaker) signals and delivers strong...

The Down4Sound D4S XP28 DSP is built for full control of your car audio system. Designed for professional installers and competition-level sound systems, it delivers precise tuning and reliable performance without unnecessary complexity. With 2 inputs...

Take full command of your car audio system with the Down4Sound XPS610 DSP Processor. Designed for enthusiasts who want power and flexibility, the XPS610 gives you 6 switchable RCA/High-Level inputs and 10 RCA outputs, letting you build and fine-tune the...

DOWN4SOUND 2-FEMALE TO 1-MALE RCA Y-ADAPTER / Y SPLITTER 1 Ft (12-inches) Y-Adapter RCA Interconnect Cable2-Female Input to 1-Male Outputs

Excessive Amperage 350a Alternator for a 2005 Honda Civic LX 1.7L      *** No refunds once order is placed as this is a totally custom built, one off unit *** 6-8 week build time Custom built to order , direct bolt on plug...

S Series The S series of 6 phase alternators offers incredible output in a compact and durable package. Highly efficient, these units use less horsepower per Kw of power produced than conventional 3 phase alternators. 12 diodes, twin rectifier plates...

The DOWN4SOUND TCX 12” Subwoofer D1 is precision-engineered for aggressive output and long-term durability. Featuring a 3" 8-layer flat aluminum voice coil, carbon fiber cone, stitched surround, and a massive 5-stack Y35 ferrite motor, it delivers...

The DOWN4SOUND TCX-12 D2 is engineered for extreme output, thermal efficiency, and structural control. Designed to thrive in high-current systems, this 12-inch subwoofer delivers a massive 2700W RMS while keeping the cone stable and the motor cool under...

Installation Notes: This unit comes equipped with a smaller 1.75 inch diameter alternator pulley, and will require a slightly shorter drive belt for proper belt tension.  Not recommended for sustained use above 5,000 RPM engine speed...

 Excessive Amperage 300a Alternator For a 1996 Buick Roadmaster Limited 5.7L Lt1    *** No refunds once order is placed as this is a totally custom built, one off unit *** 6-8 week build time Custom built to order , direct...

 Excessive Amperage 350a Alternator For a 2024 GTI Volkswagen 2.0L    *** No refunds once order is placed as this is a totally custom built, one off unit *** 6-8 week build time Custom built to order , direct bolt on plug...

Excessive Amperage 300a Alternator For a 2012 Opel Insignia Buick Regal 2.0L    *** No refunds once order is placed as this is a totally custom built, one off unit *** 6-8 week build time Custom built to order , direct bolt on...