Datasheet says 15/30W (IEC17.1/17.3 resp.), but how SPL limited will it be with a second order 600 or 800 Hz high pass filter??
@daanve It will allow for a similar max system SPL as a 2 way with a 1" dome, but max power will go down after a while being thermally limited long term. The little 19mm VC will take alot for its size and mass. 30w long term above 300 hz will eventually take its toll on the VC windings without significant cone excursion to move a little fresh air. In a small sealed box, 30w will definitely smoke it after about 20 min.
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And what do you hope to achieve?
a gain in sensitivity?
You will find multiple tests/reviews of both in several places.
One has a considerably better motor structure, better klippel tests BL,kms,le (x), staying linear with excursion.
And is much cleaner through it's whole passband, without needless resonances.
But has less sensitivity.
Fx:
https://www.dibirama.it/home-page/m...-12mu-4731t00-mid-range-4-4-ohm-150-wmax.html
https://www.dibirama.it/home-page/mid-range/205-audax-pr170m0-mid-range-6-8-ohm-200-wmax.html
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There are several pr17 models around. 170M0 is usually the common desireable".
Also the JBL 165H and EAW 0652 7″ are the same transducers, recone kits will fit them all. Still obtainable original recone kits from JBL and EAW.
So not sure why the RCF clone should be a better solution. 🙂
Much less expense, same exact performance. The surround is all that needs replacing.
Some of the PR17 versions have different cone treatment- some are coated paper, some are plain. There are also two different dust cap styles. There's also 4 ohm and 8 ohm versions. Replacing just the surround, allows the original cone, voice coil and dust cap configuration to be retained, instead of being constrained to whatever the new kits supply.
And, I don't know if anyone has tried to get cone kits from JBL in the last few years- especially since Samsung bought out Harman Group, and let a lot of people go in the US operations. Easier said than done. If they have a listing at all- it may be months before they actually show up. I deal with this on a weekly basis.
Regards,
Gordon.
If you haven't yet found something suitable, maybe look at the 10" Eminence Cannabass CB3010-8.
I just got some myself and they're really good. I got them for the same range you specified. They have a very quiet neo motor, huge I/O wound 3" VC with fiberglass former, well dampened cone and plenty of excursion despite the 94 dB/2.83V sensitivity.
I just got some myself and they're really good. I got them for the same range you specified. They have a very quiet neo motor, huge I/O wound 3" VC with fiberglass former, well dampened cone and plenty of excursion despite the 94 dB/2.83V sensitivity.
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Yes but they all have different model numbers.
PR170M0 is the usually referred well known paper cone mid, with trated foam surround and no treatment on cone.
PR170M2 has a coating on both sides of the cone else it is the same.
PR170Z0 has a aerogel cone and 'phase plug/dust cap.
There is a nextel coated cone version, taht i dont know the designation of PR170 xxxx
there are 4,8 and 16 ohm versions of them.
PR170XO TPX cone and alu phaseplug/dust cap.
pr17hr37rsm2ca7
pr17hr702ca7
PR17HR37TSM2CA7
pr17hr37tsmca7
PR17HR37TSMCA7
Thanks for catching that. The coax version of neo 10" is actually also very good and an almost identical driver aside from the cone and rear pole piece entrance, hence the slight drop in sensitivity from dust cap being open. Part of the reason its so good is due to the split I/O winding 3" VC, which is very rigid and has no significant internal resonance issues on these drivers, which really helps the midbass clarity.
Many midbass drivers have various resonances coming from the spider, VC former and air volume behind the dustcap. Its surprising how many of them don't do that well in the range they're designed to operate in.
Edit - I just realized the requested driver range is up to 3200 hz. I guess this eminence isn't quite going to make it up there without beaming. I still say its one of the best kept secrets for a high sensitivity 10" good enough for hifi and likely as good as many higher end JBL 10s.
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The PR170M2 Audax is excellent. Its only Achilles heal is very little linear excursion. Otherwise it sounds clean, open and tight when used with the right HP filter. I like drivers like this with soft breakup above upper rolloff.