Contact Red Spade Audio 8 Aug 2013 | 05:42 am

We welcome enquiries regarding our consulting services or custom design: room analysis bass integration treatment advice custom designed speakers and subwoofers Get the Contactify Widget (beta) w...

Free speakers 25 Jul 2013 | 11:36 am

Clearing out some speakers! Pickup from Melbourne. Send me a message via the contact link (top right column) if interested. An old pair of 5" bookshelf speakers. Do you need a workshop speaker? Th.....

Altec A7 Voice of the Theatre horns measured 19 Jul 2013 | 09:57 pm

How well do those old Altec Voice of the Theatre horns measure? Here I put some Altec A7 horns to the test. Tested: Compression driver: Altec 908-8A 8 ohm Horn:  Altec 511B horn Midbass driver:  ....

60L sealed 18" flat pack 19 Jul 2013 | 09:29 pm

Flat pack for 18" drivers - 60L. Designed for corner placement on an angle. Corners are chamfered off in order to avoid intrusion into the room. Construction is made simple with pieces fitting int...

Something very cool is coming ... 16 Jul 2013 | 12:28 pm

Curved sub prototype progress 20 Jun 2013 | 08:42 am

The pieces fit together in a jigsaw-like way. The final version will use a combination of hardwood and MDF. MDF for bracing internals and hardwood for all exposed outer surfaces. This is to make it mo...

60L 18" flat pack 18 Jun 2013 | 09:49 am

This is a section through a 60L sealed box designed for 18" drivers. This one makes allowance for Acoustic Elegance TD18 which has a very large magnet. It will fit most 18" drivers. Designed for corne...

Curved sub - progress 6 Jun 2013 | 06:21 pm

This is the first run with CNC on a challenging project. The final sub will be machined with solid timber. I'm providing a design-only service in this case. This project has demonstrated how communica...

Curved sub - progress 6 Jun 2013 | 06:21 pm

This is the first run with CNC on a challenging project. The final sub will be machined with solid timber. I'm providing a design-only service in this case. This project has demonstrated how communica...

Introducing Cine12 - a HT speaker with extreme dynamics and constant directivity 31 May 2013 | 06:08 pm

Cine12 is currently in development for an LSK kit. This is a speaker designed with home cinema in mind. As such, it doesn't need much extension, making a small box with high sensitivity possible. Max...