Redrock Acoustics Software

SpeaD 2026
The Complete Loudspeaker Design Platform

Redrock Acoustics has launched a completely revamped version of SpeaD — a comprehensive loudspeaker design platform that consolidates every subsystem of a driver (motor, voice coil, spider, cone assembly, and system response prediction) into a single unified application. Built on .NET 8 with a modern WPF interface, SpeaD is the successor to the legacy SpeaD that has been a tool of choice for professional loudspeaker engineers for decades.

Closed beta — now accepting testers

Become a SpeaD beta tester

SpeaD 2026 is in closed beta with engineers at driver and system manufacturers around the world. If you design transducers professionally, I would like your eyes on it — particularly the motor, spider and cone assembly modules, where SpeaD does the most that other tools do not. Beta testers receive a licence at no cost, direct access to me, and their reports shape what gets built next.

If you are interested in becoming a SpeaD beta tester, please fill in the short form. I read every application personally and will be in touch.

Apply for the beta

Explore the modules

Every SpeaD design tool is reachable from the main interface. Click any tab in the screenshot below to learn how that module works.

SpeaD main interface, showing the design workspace with side tabs for Voice Coil, Motor, Spider, Cone/Edge/Cap, Reverse SpeaD and other modules