Welcome to JHS Audio. Feel free to browse through the links below.
New stuff is towards the bottom, and dates indicate updates to pages.
| Past Systems |
Generally Useful Info |
Other Stuff |
| Ariels |
Links |
Audio Items for Sale / for Free - 8/9/07 |
| 4-way horn stack |
Horn Design - 2/7/06 |
150Hz Tractrix horn |
| Unity horn w/ vented sub |
Wavefront Measurement in a Horn Bend |
27Hz Horn Subwoofer |
| 3-way Unity horn |
FEM's of Bass horns in Various Orientations in Rooms |
Fostex FE83 in a SS pot |
| Unity horn w/ dipole midbass |
Some FEA's of Waves in Curved vs. Reflector Horn Bends |
Unity horn - 10/28/05 |
| 5-way mono horn stack |
A Budget Speaker Measurement System |
MCM Horn sub (built by Tim Moorman) |
3-way horn stack:
27hz horn, EVM12L in 75hz horn,
various 1" CD's on a 500hz tractrix |
Stored Energy Measurements |
40Hz Horn |
JBL Sub1500 in sealed box,
conical midrange w/ 4x 5" drivers,
JBL2470 on 500hz tractrix,
Fostex FT17H |
H and U baffle dipoles - 12/30/04 |
Metal Working projects - 12/23/07 |
Temporary apartment system:
Fostex FE168E Sigmas
on open baffles
|
Polar maps of various horns - 7/7/05 |
Horn subwoofer using two HL10's |
Current: Fostex FE168E Sigmas
on open baffles with JBL Sub1500 in
sealed box, mains time delayed to match sub |
. |
DIY Super tweeter - 12/18/04
Starting a new die - 2/14/05
More die - 2/26/05 |
071208 - basement system -
4x HL10 in 30hz EBS vented box to 200hz,
40 degree conical up to 1.7kHz,
Radian 475 on 500hz tractrix,
DSP crossover, eq and time delay -
0-60 degrees in room, 0-60 normalized
0-60 normalized, 1kHz crossover w/ better power response
Directivity index w/ 1kHz crossover
System with Fostex FT17H added
Directivity index with FT17H added
(crossover at 10kHz still needs work, but DI comes down in the 10kHz-20kHz octave)
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DIY 6.5" shorting ring (~1.5" diameter) - 10/3/06 |
