Does this require two connections? One rca from the unit to the sub out connection on headunit. And one to battery?

Yes, it needs 12v power, you need the audio connection from the head unit ( RCA/sub out ) permanent live to the battery and earth to the chassis or battery, then the remote wire to the head unit which tells the sub to turn on and off, all aftermarket head units have a remote live connection for this purpose 👍

Can i use it in my home system? I have a musical fidelity amp and Linn speakers

Yes, however you would need a 12V transformer with 20amps current supply.

how do you turn off if connected straight to battery?

It detects the audio signal and turns itself on and off when you turn your head unit on/off. It's clever like that :-)

Can I wire to cigarette lighter for power? Says max 120w

You cannot. You need to wire the active subwoofer directly for power to the battery Positive. If you are unsure how to do this, many videos on Youtube. It also explains in the instructions. However we always recommend professional installation if you are not sure.

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Description

🎵 Unleash bass brilliance without the bulk!

BUILT TO LAST - Heavy-duty die-cast aluminium chassis eliminates flex and boosts bass impact
PLUG PLAY VIBES - Active subwoofer with built-in amplifier for effortless, high-quality sound upgrade
POCKET POWERHOUSE - 300W max output with 130W RMS for deep, room-shaking bass
PRECISION BASS TECH - Aluminium cone with built-in damping ensures crystal-clear, rattle-free lows
SEAMLESS INTEGRATION - Compact underseat design fits discreetly anywhere in your vehicle

The In Phase USW300 is a compact, active underseat subwoofer delivering powerful 300W max output through a robust aluminium cone and die-cast aluminium chassis. Designed for discreet installation, it offers deep, rattle-free bass with a built-in amplifier, perfect for upgrading your car audio with professional-grade sound and durability.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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