Projects

The Stellar is a 2-way active speaker based on a Hypex Fusion 2-ch amplifier.

The Keystone Speaker is cardioid based, with a traditional 3 way frontal presentation.

The physical design and specification of drivers is outlined for the Keystone speaker.

Covers the design and how to build a Keystone speaker.

The Bedrock Speaker is designed to complement the Keystones to increase bass output, transforming the pair into a full range floorstander.

The physical design and specification of drivers is outlined for the Bedrock speaker.

Covers the design and how to build a Bedrock speaker.

The Ochto Amplifier is an 8-channel amplifier designed to power Keystone and Bedrock speakers.

Simple layout and wiring based on NC252MP Hypex modules is outlined.

Covers design and how to build an Ochto amplifier.

Cardia DSP manages the preparation, routing and configuration of 2ch audio from streaming sources to the Ochto amplifiers that drive the Keystone and Bedrock loudspeakers.

Covers how each of the components in Cardia DSP work together, and what components you need to have a working DSP engine driving Keystone and Bedrock speakers with Ochto amplifiers.

Vituix CAD modelling of the Keystone and Bedrock speakers.

A downloadable VCAD model is available, with discussion on how it’s setup.

Acourate DSP configuration for XO, linearisation, cardioid configuration, and other DSP functions.

Camilla DSP configuration of Cardia DSP for Keystone and Bedrock speakers.

A CamillaDSP YAML file is presented and documented as to how it implements elements of the VCAD model, and DSP from Acourate.

The final frontier – measurement, measurement, measurement.

Measurement process and impulses for each driver.

Digital Room Correction is employed to finesse audio at the listening position in my room.

The process is outlined, and the resulting FIR filters can be incorporated into the CamillaDSP pipeline.