How is this wired up pls

you need to buy audio cables (red and black) they go to your stereo. The blue wire also to stereo. 12v from positive battery. And 0v (ground) to negative battery

Is the wiring included lilke as advised

Yes all the wires were included if ever a mistake was made I would still recommend this is very reliable strongly built and gives good bass that 10x it's size

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

In Phase Car Audio XTB-828R 8" 400W Active Subwoofer with Passive Radiator and Class D Amplifer , Black

Product ID: 436348969

Details

Audio output mode
Stereo
Brand
In Phase
Connectivity technology
RCA
Material
Model name
In Phase
Mounting type
Car Mount

⚡300W peak Class D amplifier

📏Compact desktop-sized design

🔊8-inch glass fiber cone

€ 499.33

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Description

🎶 Elevate your drive with bass that commands attention — compact power, colossal impact!

SPACE SAVVY DESIGN - Compact footprint fits discreetly in your car boot, maximizing bass without sacrificing cargo space.
POWERFUL YET EFFICIENT - Class D amplifier delivers up to 300W peak power without draining your car’s battery.
PRECISION BASS MASTERY - Experience deep, controlled bass with a purpose-built glass fiber cone and passive radiator technology.
SEAMLESS COMPATIBILITY - High and low-level inputs work effortlessly with both aftermarket and OEM head units.
PLUG PLAY CONVENIENCE - Comes complete with wiring kit and remote bass gain control for instant, customizable sound upgrades.

The In Phase Car Audio XTB-828R is an 8-inch active subwoofer featuring a lightweight, durable glass fiber cone paired with a passive radiator for superior bass accuracy. Powered by a built-in 300W peak Class D amplifier, it offers deep, controlled low frequencies in a compact, desktop-sized enclosure that fits easily in your car boot. Compatible with OEM and aftermarket head units via high and low-level inputs, it includes a wiring kit and remote bass control, making it a powerful yet space-efficient upgrade for any car audio enthusiast.

Specifications

ASIN	B09ZPMVHCV
Antenna Location	car
Audio Driver Size	8 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Best Sellers Rank	119,732 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 77 in Car Enclosed Subwoofer Systems
Box Contents	All Cables Included, Remote Bass Gain
Brand Name	In Phase
Colour	Black
Compatible Devices	Personal Computer
Connectivity Protocol	RCA
Control Method	Voice
Controller Type	Remote Control
Customer Reviews	4.0 4.0 out of 5 stars (38)
Enclosure Material	Metall/Kunststoff
Is Waterproof	False
Item Dimensions D x W x H	5D x 16W x 5H centimetres
Item Type Name	Car Speakers
Manufacturer	In Phase
Maximum Speaker Output Power (in watts)	300 Watts
Model Name	In Phase XTB-828R
Model Number	XTB-828R
Mounting Type	Car Mount
Network Connectivity Technology	RCA
Number of Audio Channels	2.0
Number of Items	1
Power Source	Corded Electric
Product Features	Passive Radiator
Product Warranty	1 Year
Speaker Size	8 Inches
Speaker Type	Subwoofer
Specific Uses For Product	Car Audio
Subwoofer Connectivity Technology	Wired
Tweeter Diameter	1 Inches
Warranty Type	Limited
Water Resistance Level	Waterproof
Wireless Technology Type	No Wireless Communication Technology
Woofer Driver Diameter	8 Inches

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

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.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.