In Phase XTB-8A 8" Active Subwoofer 600W Powered Bass Box Amp + Remote & Quick

In Phase XTB-8A 8" Active Subwoofer 600W Powered Bass Box Amp + Remote & Quick Description

In Phase XTB-8A - 8" Active Subwoofer Enclosure with Built-in Amp, Remote & Quick Connect

Boost your car audio with the In Phase XTB-8A - a compact yet powerful 8" active subwoofer enclosure built for clean, deep bass and easy installation. With 600W max power and a built-in Class D amplifier, this sub is perfect for underseat or boot-mounted installs where space is limited but performance is essential.

Designed for modern convenience, the XTB-8A features quick-connect terminals, high/low-level input compatibility, and includes a wired bass remote for easy in-car tuning.

Key Features

• 8" Active Subwoofer with Built-in Class D Amplifier
• 600W Max / 200W RMS Power Output
• Durable glass fibre cone for clean, responsive bass
• Compact subwoofer box - ideal for space-saving installs
• Quick Release (Molex) connector for fast installation/removal
• Includes RCA to Molex input harness
• Compatible with both RCA and high-level (bare wire) input
• Wired bass remote control included for easy tuning
• Approx. size: Comparable to a desktop PC case

Connectivity & Installation

• Works with aftermarket and factory head units
• High-level audio input supported (bare wire connection)
• Cut RCA ends to use bare wire input if needed
• Amplifier wiring kit required (sold separately - recommended: 123610083030)
• Ideal for underseat or boot-mounted bass installations

Perfect For

• Drivers who want powerful bass from a compact box
• Hidden or space-efficient subwoofer installs
• Upgrading a full car stereo system with deep bass
• Pairing with a car amp for a balanced soundstage

The In Phase XTB-8A offers true bass performance without taking up valuable space. With an integrated amplifier and quick connections, it's built for clean sound, easy install, and premium convenience