Geoff Hill's Tetrahedral Test System & Loudspeaker Design

Leading Edge Resources for Loudspeaker Measurement and Design

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Geoff Hill


Anechoic Chamber


Model of Subwoofer in ABEC 3


Klippel - Large Signal Model


Magnetic Flux Distribution


About Geoff Hill

Geoff Hill is an accomplished expert in Loudspeaker Measurement, Anechoic Chambers, Loudspeaker driver unit design, working from concept, modelling, X-Over’s and final integration.

He now introduces a fundamentally new concept for measuring loudspeaker drive units - Tetrahedral Internal Test System.

For over three decades he has measured, designed and integrated many products, ranging from high end bespoke one off’s - through high volume mass market consumer designs.

Designing loudspeaker drive units from micro-speakers, tweeters, midrange and bass drive units through to 18 inch Subwoofers for full systems many receiving 5 star reviews in their time.

He has designed and implemented test & measurement systems from test boxes through to full anechoic chambers used in automotive, mobile phone and Hi-Fi companies throughout the world.

This website presents proven techniques that work time after time.

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Tetrahedral Test System

Tetrahedral Test System
Consistent Loudspeaker Measurements.

Geoff also offers a range of consultancy services on Loudspeaker Design and Measurement.

If you are interested in these please fill in the contact form above.

Loudspeaker Driver Design

Loudspeaker Design
What is important? Can I do this?