A curated guide to everything on this site — brands, vehicle upgrade guides, OEM sound system pages, EMMA competition content, and the shop. (Note: Shopify automatically serves a machine-readable /llms.txt for this store at the platform level, covering AI-agent commerce endpoints — this page is a separate, human-oriented companion covering the site's actual content.)
Brands
- HELIX: Audiotec Fischer's flagship car audio brand — DSP amplifiers, DSP processors and speakers.
- MATCH: Plug-and-play DSP amplifiers built for factory-integrated installs.
- BRAX: High-end, competition-grade DSP processors and amplifiers.
Vehicle Upgrade Guides
- Car Sound Upgrades (hub): Browse upgrade packages by vehicle model and OEM brand.
- BMW
- BYD
- Land Rover & Range Rover
- Lexus
- Mercedes-Benz
- Porsche
- Tesla Model 3
- Tesla Model Y
- Toyota
- Volkswagen
- Ford Ranger (Bang & Olufsen)
- Audi S3 (Sonos)
- Nissan Skyline R34 GT-R
OEM Factory Sound System Upgrades
- Bang & Olufsen
- Bose
- Bowers & Wilkins
- Burmester
- Dynaudio
- Fender
- Harman Kardon
- JBL
- Mark Levinson
- Meridian
- Sonos
- Yamaha
EMMA Competition
- EMMA Competition (hub): Guides written by Pete, a Certified International EMMA Head Judge.
- How Do I Get My Car Competition Ready for EMMA?
- How Is EMMA Competition Day Run?
- How Much Does It Cost to Enter an EMMA Competition?
- How to Calculate the Value of Your Car Audio System
- Master vs Entry €3,000: EMMA Sound Quality Classes Explained
- Key EMMA Install Rules You Need to Know
- Meet the EMMA Australia Judging Panel
- Where to Buy Official EMMA Competition Tracks
- Can I Use a Mate's EMMA Tracks Instead of Buying My Own?
- Top EMMA Rules Competitors Get Wrong
- How to Use AI to Create a Car Audio System Diagram
Learn: DSP & Install Basics
- What Is a DSP Amplifier?
- Why We Love DSP Amps
- HELIX P SIX DSP Ultimate vs HELIX NEXT V EIGHT DSP Ultimate
- DIY Install
- Car Audio Components