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In the Forum: Horn-Loaded Speakers
In the Thread: JBL 2226 2445 2405 3-way and a path forward
Post Subject: JBL 2226 2445 2405 3-way and a path forwardPosted by boiklox on: 1/16/2014
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This is my first horn build effort. Been thinking about this since starting to build loudspeakers and finally have a listening space big enough to support a horn system.
This is where I am at now, I know there are opportunities for improvement. And I'm thinking about how to develop my system for the future and build it out into a proper four or five-way system.
Current: - 40 Hz - 1000 Hz: JBL 2226J in BR Enclosure (not ideal).
- 1000 Hz - 9000 Hz: JBL 2445J in 250 Hz Stereolab Tractrix horn.
- 9000 Hz - 20,000 Hz: JBL 2405 (not seen in picture, need to build a frame to support and suspend the 2445).
Thinking about time alignment. Current crossover is a quasi-optimal, asymmetrical 3rd order butterworth/butterworth at 1 kHz. 2226/2445 crossed actively with a miniDSP (not ideal, will build out passive crossover when I "arrive" at a semi-final place). 2405, passive x-over 12 dB/octave.
300b amp drives the 2445 and 2405, SS Rotel for 2226.
To dos: - Need to build a frame to suspend the midrange horn higher, position 2405 in-between.
- Decide and build a mid-bass horn.
- Decide and build a upper mid-range horn (maybe a 600 Hz tractrix?).
- Decide and keep/replace tweeter?
- Decide what to do about bass? (no ports in future!).
- Decide what to do about crossovers and amps (6 dB/octave passive is goal).
- Time alignment.
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