Buying Guides from the Factory Catalogue

Shortlisting guides for importers, distributors and OEM buyers — written against the figures the manufacturer itself publishes, not against marketing claims.

GRANVOZ loudspeakers — banner image from the manufacturer website

Best Car Speakers: How Trade Buyers Shortlist from a Factory Catalogue

What 'best' means when you buy at factory level: fitment, published figures and the specified models worth sampling first.

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Best Subwoofer for a Car: Sizing, Power and Voice-Coil Choices

How to choose a car subwoofer from a 33-model catalogue: size classes, RMS vs maximum power, and single vs dual voice coils.

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Best 6.5 Speakers: Reading the 6.5 Inch Class Like a Buyer

The 6.5 inch class across coaxial and midrange families — and the five specified midrange models that anchor a serious shortlist.

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Best Component Speakers: When Separate Tweeters Earn Their Cost

Component speakers judged on staging, installation economics and programme fit — with the catalogue's component models in view.

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Best 6x9 Speakers: The Oval Format, Judged Properly

Why 6x9 speakers still anchor rear-deck programmes, and how to shortlist the nine published models without a spec table.

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Best Mid Range Speakers: Sensitivity, Band and Basket

Shortlisting midrange speakers on published figures: the twelve specified models compared on their own tables.

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Best Tweeters for Car Audio: Dome, Bullet, Horn or Piezo?

Choosing tweeters by construction and published figures — the twelve specified models and what their tables say.

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What Is a Compression Driver? The PA Workhorse Explained

Compression drivers explained: how they work, throat sizes, diaphragm materials, and how the 70-model driver catalogue is organised.

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