OSD Audio SMP300 + SC800D Black Series In Wall Subwoofer Package - Single - 300W
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Delivery £4.50 or Free Over £50
Delivery £4.50 or Free Over £50
All orders to mainland UK over £50 are eligible for free standard delivery.
For orders under £50 we have delivery rates starting from just £2.99
Need it fast? No problem, you’ll find express next day delivery rates available on most products. Learn More
60 Day Returns + 2 Years Warranty
60 Day Returns + 2 Years Warranty
We’re so confident that you’ll be happy with your purchase that we’ve extended our returns policy to 60 days.
We call it the “Happy Sound Guarantee”.
If you’re not happy with your purchase for any reason simply send it back to us for a full refund. Learn More
Warranty
K&B Audio are authorised dealers for OSD Audio. All sales come with a 2 Years manufacturers warranty and full technical support.
Description
Description
Bring cinema-quality bass into your home with the OSD Audio SMP300 + SC800D Black Series In Wall Subwoofer Package.
This system is perfect for home cinema enthusiasts and music lovers who want powerful low-end sound without compromising on style or space.
Designed for discreet installation, the in-wall subwoofer with its sealed enclosure blends seamlessly into your living environment while delivering deep, impactful bass.
The high-performance SMP300 subwoofer amplifier drives the dual woofers effortlessly, offering precise bass response for both movies and music.
Together, this package delivers an immersive listening experience while keeping your room free of bulky subwoofer boxes.
FEATURES
- Powerful 300W Amplifier: The OSD Audio SMP300 supplies up to 300 watts of clean, controlled power, ensuring the SC800D subwoofer performs at its best.
- Dual 8" Subwoofers: The SC800D features one 8" woofers and a 10" passive radiator in a sealed enclosure for tight, distortion-free bass that enhances both music and movie soundtracks.
- In-Wall Design: Discreet installation keeps your floor space clear while delivering high-impact bass directly from the wall.
- Sealed Enclosure: Designed to eliminate unwanted vibrations and resonance, the enclosure ensures accurate low-frequency performance.
- Variable Controls: The SMP300 includes adjustable crossover, phase control, and volume to fine-tune the bass response to suit your room and system.
- Flexible Connectivity: Equipped with RCA inputs and outputs, the amplifier integrates easily with home cinema receivers and audio systems.
Enjoy the best of both performance and design with this in-wall subwoofer package, giving you the deep, room-filling bass you need without compromising your interior.
Key Features
Key Features
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Impedance
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Warranty
Specifications
Specifications
What You Get
What You Get
Downloads
Downloads
Payment & Security
Secure Payments
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Authorised Dealer
K&B Audio are authorised dealers for OSD Audio. All sales come with a 2 Years manufacturers warranty and full technical support.

Why K&B Audio
Over a Decade of Experience
Established in 2013, we’ve been helping customers enjoy hassle-free home audio for more than 10 years.
Shop with Confidence
Our 'Happy Sound Guarantee' guarantees you expert advice, 60 day returns and free delivery on orders over £50.
35,000+ Satisfied Customers
We’ll always help you find the right solution for your needs, not just what boosts our bottom line. Don’t just take our word for it – read our glowing customer reviews.
Extensive Product Range
With the top brands, carefully curated bundles and thousands of home audio products in stock, we’ve got something for every setup.