Well, you picked a perfect time to ask! John Krutke just posted a very thorough comparison of 3 of the best 4.5" drivers. See here:
http://home.new.rr.com/zaph/audio/4.5test/
http://home.new.rr.com/zaph/audio/4.5test/
replacement woofer...
The original Super Zero used a Tonegen 458 woofer--not sure if it is available anywhere..
efficiency was 86db
85Hz(-3 db) 12db/octave low pass @ 2.2kHz
7.5 Ohm min resistence.
To me it seems that thw Seas L12 would be a close match, in regards to efficiency, and impedence (and frequency response too!). I guess I would calculate the enclosure and do a little more work if they were mine..
stew
The original Super Zero used a Tonegen 458 woofer--not sure if it is available anywhere..
efficiency was 86db
85Hz(-3 db) 12db/octave low pass @ 2.2kHz
7.5 Ohm min resistence.
To me it seems that thw Seas L12 would be a close match, in regards to efficiency, and impedence (and frequency response too!). I guess I would calculate the enclosure and do a little more work if they were mine..
stew
The new CSS WR125 is very worthy of consideration... the XBL tech gives it really good extension at the bottom (while giving up some top to something like the Jordan JX92 -- the latter pushing your budget a bit)
dave
An externally hosted image should be here but it was not working when we last tested it.
dave
Hi Jazzbearz,
I've attached a plot of Xmax displacement vs. frequency for a 4.5" speaker in a sealed box for producing 110 db SPL @ 1m. This would give about 90db at the listening position with reasonable headroom for transients.
Most single 4.5" speakers are crossed around 300Hz and 2Khz to match their excursion and IM distortion limitations.
I get the best midrange sound from a sealed box with a lot of sound absorpton material to keep reflections from the rear of the cone. I have not seen many high end speakers with ported midranges.
I've attached a plot of Xmax displacement vs. frequency for a 4.5" speaker in a sealed box for producing 110 db SPL @ 1m. This would give about 90db at the listening position with reasonable headroom for transients.
Most single 4.5" speakers are crossed around 300Hz and 2Khz to match their excursion and IM distortion limitations.
I get the best midrange sound from a sealed box with a lot of sound absorpton material to keep reflections from the rear of the cone. I have not seen many high end speakers with ported midranges.
Attachments
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Loudspeakers
- Multi-Way
- Best 4.5 inch drivers?