What's New

27/9/2015 - PSE-144 GTG

14/9/2015 - Princeton University 3D3A posted results of R16 measurements

2/9/2015 - Redefy TWO GTG

21/7/2015 - Amateur video of S19

5/6/2015 - 500,000+ visits! Wow thanks and hopefully this site is useful for you.

8/2/2014 - Walking around a dipole loudspeaker (YouTube Video)

26/1/2015 - First photos of R16 posted

7/9/2014 - Posted polar measurements of S23

31/8/2014 - Posted design of Cardioid loudspeaker project: S23

29/5/14 - Added Epiphone Les Paul guitar page

14/5/14 - Site visitors passed 400,000

18/10/13 - Melbourne Audio Show in GTG

15/8/13 - Investigation: Effects of Crossover Points on Loudspeaker Directivity

14/8/13 - Building a 2x 500w Class-D Subwoofer Amplifiers

20/7/13 - Added another 4 channels to the 8-Channel Gainclone amp. The channels are bridged

14/5/13 - Site visitors passed 300,000

22/1/13 - Red Spade S3 Synergy Horn measurement GTG

7/12/12 - Weekday GTG

8/11/12 - Posted EP12, Single Stereo Loudspeaker

20/10/12 - Posted full details of S20-Z. Config file is available for purchase

19/9/12 - Requirements for upside down / down firing subwoofer

14/9/12 - Updated stuffing information of S15 based on builder inputs

2/9/12 - Completed final cabinet for S19 4-way dipole radiator

28/8/12 - Random notes of work in progress

28/8/12 - Updated where to buy measurement microphone in speaker measurement tool

27/8/12 - Site visit 200,000

29/6/12 - Posted S20-Z design concept

27/6/12 - Musikelectronic Geithain 901K speakers in Visits and GTGs

14/6/12 - Investigation: Application of DSS filter for single-tweeter Dipoles

6/6/12 - LINN high end GTG in Visits and GTGs

29/5/12 - Updated Audio-Technica ATH-AD700 with  Passive Equalizer

24/5/12 - Audio-Technica ATH-AD700 Frequency Response Equalizer

8/5/12 - Project: 8-Channel Gainclone amplifier

7/4/12 - Added Investigations section and posted "Class D Amplifiers for Tweeters"

2/4/12 - First prototype of 4-way dipoles with Seas Magnesium drivers

25/3/12 - Seas W15CH001 received and tested

21/3/12 - Published 35hz LT version of S15

6/3/12 - Initial publication of S19 4-way dipole loudspeakers

6/2/12 - Experimentation with Linkwitzlab Watson with  S16/MSXT

4/2/12 -  S15 :  B&C DE250 andCelestion  CDX1-1745 variants posted

3/2/12 - Production version of original S15 documented and  posted. Visitors can also purchase the config file.

18/1/12 - Design of the rounded waveguide loudspeaker: S15R

1/12/11 - Update on S16 variant using Titanium tweeters DQ25SC16:  S16/MSTi

18/12/11 - Waveguide and Celestion compression driver GTG in  Visits and GTGs

1/12/11 - Posted basic measurement data for recently built S16/MSXT

27/11/11 Melbourne audio round-trip GTG. Also report at SNA.

18/11/11 - Major cleanup and progress on the Garage Audio Room

6/11/11 - Synergy Horn GTG

1/11/11 - Completed S16/MS

31/10/11 - Site visits passed 100,000

30/10/11 - Building S16/MS

26/10/2011 - Added report of "The Australian Audio and AV Show" Visits and GTGs

25/10/2011 - What's New page created

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