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SJ Concepts - Car audio, security & customise

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United Kingdom
Newport (Casnewydd), Wales
SJ Concepts - Car audio, security & customise

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Specialists in Car Audio, Security & Customisation We have been around since 2000 and have 15 years experience in the automotive industry.
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We can supply and fit some of the leading brands from around the world:
Multimedia, Navigation, Hands Free Kits
CD, DVD, MP3 Players, Ipod Integration, Dab Digital
Headrest TV, Flip down monitors, Freeview TV
Parking Aid Kits, Reversing Camera
Xenon Lighting, Led Upgrade, Daylight
Alloy Wheels, Suspension, Styling
Retrofits - Parking Sensors, Cruise Control
Split Charging and Electrical Systems
Vehicle Security and Tracking Systems
Sound Proofing
Engine Remapping
Diagnostics and Coding
Custom Installations
Based in Newport, South Wales, SJConcepts is a leading supplier of in car entertainment, car security and customisations for all mainstream manufactures and vehicles.

05/11/2026

🔴⚫ 2019 FORD TRANSIT CUSTOM | BESPOKE SHOW & SOUND BUILD

After months of research, our customer travelled from the South West to SJ CONCEPTS for a bespoke audio installation.

The brief? Show-stopping looks, serious output and exceptional sound quality from the driver’s seat.

📱 KENWOOD DMX9724XDS + HELIX DSP PRO

Our flagship Kenwood multimedia system feeds a HELIX DSP PRO via a direct optical digital connection, allowing precise control over the entire system.

🔊 VIBE BLACK AIR FULLY ACTIVE 3-WAY SYSTEM

Custom A-pillars house VIBE Black Air midranges and tweeters, complemented by powerful door midbass drivers and rear coaxials.

Every front speaker is individually amplified and digitally tuned for maximum performance.

⚡ VIBE POWERBOX AMPLIFICATION

• Powerbox 80.4 – Mids & tweeters
• 2 × Powerbox 135.4 – Midbass & rear speakers
• Powerbox 3000.1D – Subwoofer amplification

Supported by a lithium battery split-charge system and Comfort Mat 3-stage soundproofing.

💥 4 × JL AUDIO 10” W0 SUBWOOFERS

Four JL Audio subwoofers housed in a bespoke enclosure, complemented by an illuminated speaker and amplifier display.

Serious bass when needed, with the control and balance for everyday listening.

💻 PROFESSIONAL DSP TUNING

Every channel was individually configured, time-aligned and equalised to deliver a focused soundstage, detailed vocals, powerful midbass and deep, controlled bass.

🔥 THE RESULT

A true combination of SHOW & SOUND QUALITY. Built to turn heads at meets, but engineered for the music lover behind the wheel.

SJ CONCEPTS — PREMIUM STYLINGS. BUILT DIFFERENT.

📍 Newport, South Wales
📞 01633 276682
🌐 www.sjconcepts.co.uk

03/11/2026

🚐 2020 VW TRANSPORTER T6 | KENWOOD MULTIMEDIA UPGRADE 🔥

This VW Transporter T6 visited SJ CONCEPTS for a much-needed multimedia upgrade!

Our client wanted to bring the factory system up to date with modern smartphone connectivity and improved reversing visibility.

🔴 KENWOOD DMX-8021DABS
✅ Wireless Apple CarPlay
✅ Wireless Android Auto
✅ DAB+ Digital Radio
✅ Bluetooth Hands-Free & Audio Streaming
✅ High-Resolution Touchscreen

📸 OEM-STYLE REVERSING CAMERA

Alongside the Kenwood upgrade, we installed a discreet reversing camera, neatly integrated into the vehicle for a factory-style finish.

The result? Modern technology, effortless connectivity and added convenience, all without compromising the original dashboard appearance.

As an authorised Kenwood Pro Installer, SJ CONCEPTS offers a 3-year Kenwood warranty on qualifying supplied and fitted products.

SJ CONCEPTS — PREMIUM STYLINGS. BUILT DIFFERENT. 🔴⚫

📍 Newport, South Wales
📞 01633 276682
🌐 www.sjconcepts.co.uk

03/11/2026

🔐 2022 NISSAN FAIRLADY Z | METATRAK S5 DEADLOCK SECURITY UPGRADE 🇯🇵

Something a little different at SJ CONCEPTS!

This stunning Japanese-import Nissan Fairlady Z visited us for a premium vehicle security upgrade.

With vehicle theft remaining a major concern, our client wanted advanced protection and peace of mind.

🔴 METATRAK S5 DEADLOCK SYSTEM

✅ Thatcham S5-rated tracking technology
✅ Integrated immobilisation protection
✅ Driver recognition technology
✅ 24/7 monitored vehicle tracking
✅ Theft alerts and recovery support
✅ Discreet, professional installation

The MetaTrak S5 Deadlock combines advanced vehicle tracking with additional immobilisation protection, helping safeguard this Japanese performance car against unauthorised use.

Performance deserves protection. 🔥

At SJ CONCEPTS, we don’t just upgrade your driving experience — we help protect your investment.

SJ CONCEPTS — PREMIUM STYLINGS. BUILT DIFFERENT. 🔴⚫

📍 Newport, South Wales
📞 01633 276682
🌐 www.sjconcepts.co.uk

26/10/2026

🔊 2020 MERCEDES SPRINTER W907 | BESPOKE HI-FI AUDIO BUILD 🔊

After contacting numerous installers about upgrading the audio while retaining the factory Mercedes MBUX system, our client travelled from West Wales to SJ CONCEPTS with his coachbuilt motorhome.

The brief? Quality over quantity. Exceptional sound, bespoke installation and a discreet OEM finish.

🇩🇪 THE BEST OF GERMAN AUDIO TECHNOLOGY

🔴 JEHNERT FULLY ACTIVE 3-WAY SYSTEM
Custom-designed dashboard pods housing midrange speakers and tweeters, paired with JEHNERT door woofers. A true 3-way soundstage delivering exceptional clarity, detail and midbass.

🔴 MATCH UP 6DSP AMPLIFIER
Fully active amplification with individual speaker control, precise crossovers, time alignment and equalisation, all seamlessly integrated with the original Mercedes MBUX system.

🔴 MATCH UP 1FX + HELIX K10E.2
Dedicated subwoofer amplification delivering deep, powerful and controlled bass without overpowering the front soundstage.

🔴 COMFORTMAT 3-STAGE SOUNDPROOFING
Comprehensive door treatment to reduce vibration, unwanted resonance and rattles while improving midbass performance.

🎛️ PROFESSIONAL DSP TUNING
The entire system was measured, digitally tuned, time-aligned and equalised in the vehicle to deliver a beautifully balanced, immersive listening experience.

🔥 THE RESULT?
Detailed vocals, exceptional imaging, punchy midbass and rich, controlled low frequencies. A true SQ system built around our client’s listening preferences.

🏆 EXCITING NEWS FOR SJ CONCEPTS!

As South Wales’ largest car audio specialist and Wales’ only Audiotec Fischer reseller, we’re proud to announce that SJ CONCEPTS is now the Welsh distributor for JEHNERT!

Bringing together JEHNERT speakers, MATCH amplification and HELIX bass allows us to offer even more bespoke high-end audio solutions.

The standard keeps rising. So do we. 🔴⚫

SJ CONCEPTS — PREMIUM STYLINGS. BUILT DIFFERENT.

📍 Newport, South Wales
📞 01633 276682
🌐 www.sjconcepts.co.uk

24/10/2026

🔊 2016 AUDI S3 | MULTIMEDIA & SOUND UPGRADE 🔥

A new client brought their Audi S3 to SJ Concepts looking for a complete multimedia and audio transformation. The brief? Modern technology, serious power and exceptional sound quality!

📱 ZZ2 Multimedia Upgrade
We started by replacing the factory display with a ZZ2 screen upgrade, retaining seamless integration with the vehicle while introducing wireless Apple CarPlay and modern multimedia features.

🔊 Vibe Black Air Speaker Upgrade
The client wanted speakers capable of delivering serious volume without compromising clarity. We installed Vibe Black Air components up front and matching coaxials in the rear, delivering a powerful, balanced soundstage.

💥 Vibe 10” Subwoofer
For that extra low-end punch, we added a Vibe 10-inch subwoofer, bringing deep, controlled bass to the system.

🎛️ HELIX 206 DSP Amplifier
The heart of the system! Running an active configuration, the HELIX DSP amplifier allows precise control over the speakers. Each channel was digitally tuned, equalised and time-aligned to suit the vehicle and the client’s listening preferences.

The result? A completely transformed Audi S3 with modern connectivity, powerful audio and impressive sound quality.

At SJ Concepts, we don’t just fit speakers — we engineer complete sound systems tailored to you.

📍 Newport, South Wales
🌐 www.sjconcepts.co.uk

SJ CONCEPTS | DRIVE DIFFERENT

24/10/2026

🔥 2010 NISSAN ELGRAND – KENWOOD MULTIMEDIA UPGRADE! 🔥

This Nissan Elgrand arrived at SJ Concepts with its basic, outdated factory entertainment system.

Our client wanted to bring the vehicle up to date with modern multimedia features, particularly DAB+ digital radio and wireless Apple CarPlay.

We opted for the Kenwood DMX7525DABS, delivering a huge improvement in technology, connectivity and everyday usability.

✅ Wireless Apple CarPlay – Access your favourite iPhone apps without connecting a cable.

✅ Wireless Android Auto – Seamless Android smartphone integration.

✅ DAB+ Digital Radio – A wider choice of stations with crystal-clear digital sound.

✅ Bluetooth Connectivity – Hands-free calling and wireless music streaming.

✅ Google Maps & Navigation – Modern navigation directly through the Kenwood touchscreen.

✅ Professional Integration – Neatly installed into the original dashboard for a clean, factory-style finish.

THE RESULT?

A massive improvement over the original Japanese factory system, bringing this 2010 Elgrand right up to date with the convenience and connectivity of a modern vehicle.

Another quality installation by SJ Concepts, your authorised Kenwood installer in South Wales.

📍 Newport, South Wales
🌐 www.sjconcepts.co.uk

PREMIUM STYLINGS. BUILT DIFFERENT.

22/10/2026

🔥 2016 VW BEETLE CONVERTIBLE | KENWOOD F920DS UPGRADE 🔥

This VW Beetle arrived at SJ Concepts with a failed factory MIB touchscreen, a common frustration with these factory units.

Rather than replacing it with another original unit, our customer wanted something more modern, reliable and packed with features.

We installed the Kenwood F920DS, transforming the Beetle’s multimedia experience!

✅ 9” Fully Adjustable Floating HD Touchscreen – Position the display for the perfect viewing angle.

✅ Wireless Apple CarPlay & Android Auto – Seamless smartphone connectivity without cables.

✅ DAB+ Digital Radio – Crystal-clear digital entertainment.

✅ Google Maps & Navigation – Access your favourite navigation apps directly on screen.

✅ Bluetooth Connectivity – Hands-free calling and wireless music streaming.

✅ Professional Installation – A clean, integrated finish that complements the Beetle’s interior.

A huge improvement over the outdated factory system, bringing modern technology and convenience to this iconic convertible!

📍 SJ Concepts | Newport, South Wales
🌐 www.sjconcepts.co.uk

DRIVE DIFFERENT.

17/10/2026

🔊 2018 FORD TRANSIT – FULL HELIX AUDIO & MULTIMEDIA TRANSFORMATION! 🔥

A returning client who first visited us many years ago for a Focal speaker upgrade, subwoofer and Alpine Halo multimedia system.

During a recent visit, he had the opportunity to listen to one of our HELIX demo vehicles. Impressed by the incredible clarity and sound quality, he decided it was time to take his Transit to the next level!

🔊 FULL HELIX 3-WAY AUDIO BUILD

We started by removing the previous equipment and designing a completely new front soundstage.

Using 3D design and custom fabrication, we created bespoke A-pillar pods housing HELIX i5 1” tweeters and 3” midrange speakers.

The front doors received HELIX i5 6.5” midbass speakers, while the rear was upgraded with HELIX i3 coaxials.

What was originally a conventional 4-speaker setup has now been transformed into a fully active 8-speaker system!

🎛️ MATCH UP 8 DSP

Powering the system is a MATCH UP 8 DSP amplifier, allowing us to individually control, time-align and digitally equalise each channel for exceptional clarity, separation and sound staging.

💥 HELIX K8 SUBWOOFER

For that extra low-end punch, we installed a HELIX K8 subwoofer behind the seat, delivering deep, controlled bass without compromising valuable cabin space.

📱 KENWOOD F920DS MULTIMEDIA UPGRADE

To complete the transformation, we installed the Kenwood F920DS 9” multimedia system, bringing wireless Apple CarPlay, Android Auto and modern connectivity to the Transit.

THE RESULT?

An incredible transformation from an already upgraded system to a true sound-quality-focused build.

The combination of HELIX i5 speakers, MATCH DSP processing and the HELIX K8 delivers outstanding detail, powerful midbass and a beautifully balanced soundstage.

Another returning customer experiencing the difference that a properly designed and professionally tuned audio system can make!

SJ CONCEPTS – PREMIUM STYLINGS. BUILT DIFFERENT. 🔴⚫

09/10/2026

🔥 2021 VW GOLF GTI – THE ULTIMATE SHOW-STOPPING AUDIO BUILD! 🔊

A returning client wanted something special for his Golf GTI. The brief was simple — LOUD, fully adjustable and built to stand out from the crowd! n0t.hhj

We started by completely stripping the interior and applying 3-stage sound insulation to the doors, floor and boot. An additional lithium battery was installed to support the serious power this system demands.

🔊 FULL VIBE SEVEN AUDIO SYSTEM

* Custom fabricated A-pillar pods
* Vibe Seven 3-way front speaker setup
* Rear coaxial speakers
* 4 amplifiers powering individual components
* Helix DSP PRO processor

Every component was individually crossed over, equalised and time-aligned to deliver incredible sound quality, clarity and volume.

💥 THE BASS!

A custom enclosure was built to the correct internal volume, housing 2 × 12” Vibe BlackDeath subwoofers, driven by a massive 3000W amplifier!

🎛️ TOTAL CONTROL

We integrated a Helix Conductor into a custom 3D-printed holder, giving the driver control over bass, volume and preset sound profiles to suit different music genres and moods.

🔥 THE FINISHING TOUCHES

A fully bespoke boot build with illuminated detailing, professionally integrated amplifiers and custom seatbelts to complement the factory GTI interior.

THE RESULT?

A serious show-stopping build that combines extreme output with true sound quality.

The Vibe Seven range is massively underrated. From build quality to musical performance, these speakers are right up there with the best. Pair them with HELIX DSP technology and you’ve got something truly special.

SJ CONCEPTS – PREMIUM STYLINGS. BUILT DIFFERENT.

06/10/2026

2026 Land Rover Defender — Full Styling Transformation Ashley smith

Brand-new Land Rover Defender, brought to us straight from the dealership. In its original form it was a little too basic, so we gave it the SJ Concepts touch. 🔥

We started by removing the front and rear bumpers and having them professionally colour coded. From there, we added wide arches, side steps and a matching spare-wheel cover to completely change the Defender’s stance.

For a much more aggressive look, we fitted a rear spoiler, roof lights and front splitter. Then came the finishing touch — a set of huge 23” Riviera RF22 alloy wheels, complemented by Kawasaki Green brake calipers for the perfect contrast against the black bodywork.

A huge transformation from standard to a seriously mean-looking Defender. 🖤💚

Built different. Driven different.

Address

20 Leeway Industrial Estate
Newport
NP194SL

Opening Hours

Monday	9am - 5:30pm
Tuesday	9am - 5:30pm
Wednesday	9am - 5:30pm
Thursday	9am - 5:30pm
Friday	9am - 5:30pm
Saturday	9am - 1pm

Website

http://www.sjconcepts.co.uk/contactus.html

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