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Horn No.1931 -- ES Front Horn for GRS PT6825 Pl...
The ES Horn No.1931 is a 500Hz Fc horn specifically designed for the GRS PT6825 Planar Transducer. This horn has been designed as a no compromise design specifically for use...
Horn No.1931 -- ES Front Horn for GRS PT6825 Pl...
The ES Horn No.1931 is a 500Hz Fc horn specifically designed for the GRS PT6825 Planar Transducer. This horn has been designed as a no compromise design specifically for use...

Altec 416-8B in 100L Sealed
In this blog post I test the Altec 416-8B in a 100L sealed enclosure. Testing was done outdoors for the frequency response and then brought indoors for the distortion testing. ...
Altec 416-8B in 100L Sealed
In this blog post I test the Altec 416-8B in a 100L sealed enclosure. Testing was done outdoors for the frequency response and then brought indoors for the distortion testing. ...

18Sound 10NMBA520 10” Midrange on Horn No.1723
In this blog post I test the 18Sound 10NMBA520 10” Midrange on Horn No.1723 which is a 200Hz Fc exponential horn. I chose this driver for its unique Active Impedance Control...
18Sound 10NMBA520 10” Midrange on Horn No.1723
In this blog post I test the 18Sound 10NMBA520 10” Midrange on Horn No.1723 which is a 200Hz Fc exponential horn. I chose this driver for its unique Active Impedance Control...

Fostex T900A
In this blog post I look at the T900A bullet style super tweeter from Fostex. This "Laboratory Series" is made in Japan unlike lesser models. The tweeter uses an alnico...
Fostex T900A
In this blog post I look at the T900A bullet style super tweeter from Fostex. This "Laboratory Series" is made in Japan unlike lesser models. The tweeter uses an alnico...

Design Study --- Wide Body Bass Cabinet No.1799...
In this blog post I look at a potential new bass cabinet that utilizes Purifi's new 10" woofer. Following on the heals of my latest test on the 8" version driver,...
Design Study --- Wide Body Bass Cabinet No.1799...
In this blog post I look at a potential new bass cabinet that utilizes Purifi's new 10" woofer. Following on the heals of my latest test on the 8" version driver,...

Autoformer Versus Fixed Resistor L-Pad --- IMD ...
I've been getting a lot of questions regarding autoformers and whether they are beneficial in terms of sound quality. Normally I use autoformers to provide some MF and HF...
Autoformer Versus Fixed Resistor L-Pad --- IMD ...
I've been getting a lot of questions regarding autoformers and whether they are beneficial in terms of sound quality. Normally I use autoformers to provide some MF and HF...