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In Phase Car Audio XTB-828R Underseat Subwoofer

In Phase Car Audio XTB-828R Underseat Subwoofer

by In Phase

£140.60from 4 retailers
GTIN05060801411080
EAN5060801411080
MPNXTB-828R
Prices updated 18 Mar 2026

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ComputersDeal

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In stockStandard delivery in 3 working days
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£168.72£140.60
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In stockStandard delivery in 3 working days
3 deals available
£161.69£140.60

£140.60 total inc. delivery

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Amazon

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In stock3-5 working days
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£161.69£142.95

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£142.95 total inc. delivery

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£164.99

24.39 vs cheapest

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Product Description

The In Phase Car Audio XTB-828R Underseat Subwoofer is a passive radiator equipped active sealed subwoofer enclosure. Hit really low frequencies and experience true bass accuracy not normally found in bog-standard active subwoofer. Equipped with an all weather glass fibre woven cone 20cm (8") drive unit. paired with a passive radiator in sealed enclosure technology. it provides deep and controlled bass frequencies. Its built-in 400W class D amplifier offers high power handling and numerous controls.XTB-828R has high and low level inputs that can be plugged with after market and OEM headunits.This FOUR-in-one enclosure reduces overall dimensions while offering a great bass level. This comes complete with a wiring kit apart from RCA cables. If fitting to an aftermarket headunit. you will need RCA cables

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