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In Reply to: RE: why didn't Eminence make a "Delta" 15CX? posted by freddyi on July 01, 2007 at 07:00:40
As long as we are wishing, how about a Beta 12CX with a Beta 12LTA wizzer and a coax mounted APT-50? A Delta 15CX sounds good to me!
Dave
Follow Ups:
hey Dave - good one too - are you satified with Beta 12Cx motor strength? what inexpensive but effective refinements could Emiennce offer in hypothetical coax?
You are right in pointing out the weekness Beta 12CX motor strength. If you had to make do, how about running it open baffle and crossing over low to a 15 or 18"? A big magnet and shorting rings would be nice but then you are really jumping up in price. How about a coax version of a JBL 2226?
Dave
I'd ask DJK - Eminence made several cast-frame coaxial (C12CX and C15CX) adn I paid no more than $90 ea. on closeout -motor can run ~$1/oz at times so larger motor should not add that much. P-Audio under X-tealth offers 2226cx -- not what I'd want
C12CX had high fs so some adjustments in spider might help
12 inch coaxial:
Thiele/Small Parameters
01-SPEC 121590
04-DATE 01/14/93
02-PART # OBS/290-141
03-MODEL # 1225F8037
05-RE OHMS 5.64
13-FS HZ 70.10
06-LE MH .45
14-MMS GMS 36.82
07-QM 6.56
15-CMS mm/N .1400
08-QE .340
16-RMS NS/M 2.4725
09-QT .320
17-VAS LTRS 53.06
10-XMAX MM 1.80
18-SD SCM 519.45
11-BL TM 16.51
19-EBP 208.8
12-EFF % 5.25
20-SPL dB 99.2
15 Inch Coax with EV-SP15A type cone :151043 (MCM)
01-SPEC 151043 04-DATE 01/07/93
02-PART # OBS/55-1125
03-MODEL # 1530F9537
05-RE OHMS 6.34
06-LE MH .76
07-QM 7.15
08-QE .380
09-QT .360
10-XMAX MM 2.90
11-BL TM 18.03
12-EFF % 6.05
13-FS HZ 53.38
14-MMS GMS 58.26
15-CMS mm/N .1526
16-RMS NS/M 2.7340
17-VAS LTRS 157.15
18-SD SCM 856.34
19-EBP 140.1
20-SPL dB 99.8
15 Inch Coax with Altec-like cone151369 (PE)
Thiele/Small Parameters
01-SPEC 151369 04-DATE 01/14/93
02-PART # OBS/290-197
03-MODEL # 1530F9537
05-RE OHMS 6.39
13-FS HZ 56.80
06-LE MH .85
14-MMS GMS 53.10
07-QM 9.76
15-CMS mm/N .1479
08-QE .400
16-RMS NS/M 1.9423
09-QT .390
17-VAS LTRS 152.29
10-XMAX MM 2.90
18-SD SCM 856.34
11-BL TM 17.37
19-EBP 141.4
12-EFF % 6.70
20-SPL dB 100.3
Is the PAaudio 2226ex supposed to be a clone of the JBL 2226? Does it have shorting rings? The JBL 2226 does not go real low but when I heard one, it seemed to go higher than most 15" woofers and still sound good. I attributed this to the shorting rings.
Dave
dunno Dave - at ~$400ea (for those without business acct) not sure if want to find out - - maybe P-Audio has it listedSN15C are $206 at loudspeakersplus and IIRC weighs 12.5lb with HF driver
Martin's list of 15" coax - look at X-tealth
2226CX spec - kinda high mms
Coaxial / X-tealth 2226CX2• 15" high powered coaxial woofer with 2" exit 100W compression driver
• features 15" X-tealth 2226 woofer and X-tealth 2000
• for high-powered monitor appilcations
• diameter: 15"
• impedance: 8Ω
• power rating: 600W rms, 1200W peak
• frequency response: 41Hz–18kHz
• spl: 103 dB
• magnet weight: 101 oz
• voice coil diameter: 4"
• weight: 34.5 lbs
• fs: 53 Hz
• vas: 92.89 L
• qms: 8.44
• qes: 0.30
• qts: 0.29
• hole cut: 14.06"
• mms: 106.73 g
• mounting centers: 14.57"
• depth: 8.1"
• sd: 0.08 mē
• βl: 24.11 TM
Thanks for the info. I also saw your Beta 15CX. Not bad for $89 ea. The way finances are, I won't be buying new dreivers for a while. I do have a pair of Wolverine 12" Triax (coax w/ a wizzer) that I plan to try on an open baffle. I mostly scrounge up very used stuff. I poster earlier about an obscure Diatone driver but no one seems to have any infput. I am not supised. I expect no ones ever seen one.
Dave
FWIW - had a beat up old Karlson box loaded with Beta 15CX - qts too high but by chocking down teh rear lowpass and vent it sounded pretty listenable with 3rd order network and 205Ti Selenium. (a compression driver's field can lower Qes somewhat)
APT50 was good with the 12" cast-frame Eminence coax. Wolverine should sound great on OB
Freddy - hope U have a nice 4th
I figured they would work in an open OB when I saw the 9 cubic foot sealed cabinent recommendation in the literature. I have an M&K sub to take up the low end.
I hope you have a great 4th too!
Dave
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