Car Subwoofer 4-Channel High to Low Audio Converter with Amplifier Control Wire

Upgrade your car’s sound with the EBTOOLS Car Subwoofer 4-Channel High to Low Audio Converter with Amplifier Control Wire. This high-quality 4-channel converter takes high-level speaker signals and converts them to low-level signals that your subwoofer or amp can handle, giving you deeper, clearer bass without replacing your factory head unit. Built from durable plastic and designed for easy installation, it wires directly into your car’s original CD, radio, DVD player, or amplifier system for a seamless upgrade.

Key advantages include a clean, balanced signal across all four channels, reliable performance in a compact package, and simple installation with color-coded wiring. You may receive either the new type or the old type during shipping; both variants function identically, and installation remains straightforward with correct wiring.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Benefits & Tips

• Boost bass by feeding a subwoofer or aftermarket amplifier with a clean low-frequency signal from your factory head unit.
• Preserve your factory stereo while unlocking deeper, more controlled bass without a full head-unit upgrade.
• Smart wiring tips: use the blue wire for 12V amplifier control to auto-on the amplifier, and connect the brown wire to earth to reduce noise if you experience hum (disconnect when there is no noise).

Product specifications

• Brand: EBTOOLS
• Model: Car Stereo Subwoofer 4 Channel High to Low Audio Converter with Power Amplifier Control Wire
• Color: Black
• Material: Plastic
• Condition: Brand New
• Wiring: 12-wire harness
• Weight: Approx. 144 g / 5.1 oz
• Wiring functions (color-coded): Gray — right front anode; Gray & Black — right front cathode; White — left front anode; White & Black — left front cathode; Purple — right rear anode; Purple & Black — right rear cathode; Green — left rear anode; Green & Black — left rear cathode; Red — power input anode; Black — power earth; Brown — earth when there is noise (unconnect when no noise); Blue — 12V amplifier control output

Package includes:

• 1 × High to Low Audio Converter

Warnings/Reminders

• Note: the product may be shipped as either the new type or the old type; this does not affect functionality—please order with this in mind.
• Ensure correct wiring according to the color-coded connections to avoid damage to your car audio system.
• This item is intended for use with 12V automotive electrical systems and should be installed by someone familiar with car audio wiring. Always disconnect the battery before wiring to prevent short circuits.

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