I am looking for a 12" (or 11") woofer for a three-way construction with a midrange dome. Woofer and midrange dome will cross at about 500-700Hz. The woofer is supposed to go down quite low, but above all to play bass with great impact. The quick, energetic with significant dynamics. The speaker must be available in Europe.
For high sensitivity (if you willing to sacrifice ultimate low-frequency extension), Eminence Kappalite 3012LF, Faital Pro 12PR320 or a future candidate Faital Pro 12RS430. Of course there are more choices but these are mine.
Faital Pro 12RS430 is looking looks promising. Do we know its price? 12FE330 is nice too 🙂
What about Eton woofers?
What about Eton woofers?
The price of the 12RS430 is not known yet as far as I know.
Eton woofers are good too, but they have relative high harmonic distortion in general: https://hificompass.com/en/speakers/measurements/eton/eton-12-680/62hex-out-kharma-exquisite-grand
Eton woofers are good too, but they have relative high harmonic distortion in general: https://hificompass.com/en/speakers/measurements/eton/eton-12-680/62hex-out-kharma-exquisite-grand
I think you should consider crossing the D7608 a bit higher. What price range? For pro woofers, check BMS, 18sound and B&C too.
Higher that 700Hz?
Price range for woofer up to 200 Euro/Piece (with some margin), but if there is good woofer for 100 Euro I'll take it 🙂
Check the Xmax (0,4mm) and the resulting Vd and max SPL vs frequency.
For woofers: SB29 or SB34 come to mind. The SB29 does till about 900Hz easily. Not every 12” does that.
For woofers: SB29 or SB34 come to mind. The SB29 does till about 900Hz easily. Not every 12” does that.
SB29 isn't a 10" woofer?
10" SB26SFCL38-4 looking good and it's quite inexpensive.
Scan Speak says "recommendation frequency range for D7608-920010 is 600-6000Hz". I'll try to check D7608 in WinISD 🙂
Correct me if I Am wrong, but WinISD show that HP filter @650Hz 3rd order and 70W (80W is RMS power of this driver) is exactly on max 0,4mm linear excursion (+/-0,4mm). Isn't it save for driver? How many Watts will go to woofer when on midrange is 70W? With 700Hz 3rt order 80W give 0,35mm excursion. Second order give 0,7mm of excursion @ 700Hz HP filter.
Get the two 12fe330 available on TLHP
They're designed for use in two-way speakers, so should reach even higher easily
They're designed for use in two-way speakers, so should reach even higher easily
The Scan Speak can do 106dB (half space, 1m) from about 600Hz. That is full power. The distribution of sound pressure against frequency in normal music shows higher levels under about 1kHz. So by picking a higher highpass you gain headroom. That is if the low end can keep up of course.
The SB29 has ’only’ 312 square cm cone area, but it makes up for that with 11mm Xmax, so the Vd actually is higher than a lot of real 12” woofers. This one does max SPL of 109dB from 50Hz upwards in a 60 liter reflex enclosure.
The SB29 has ’only’ 312 square cm cone area, but it makes up for that with 11mm Xmax, so the Vd actually is higher than a lot of real 12” woofers. This one does max SPL of 109dB from 50Hz upwards in a 60 liter reflex enclosure.
The Faitalpro doesn’t have demodulation rings. Neither does the SB29. A thing to consider in this application. This is a nice example btw. While having a lot more Sd, the Vd of the FaitalPro is actually less than that of the SB.
Kartesian Wom300?
-https://en.toutlehautparleur.com/speaker-kartesian-wom300-vdiy-8-ohm-12-inch.html
- https://www.kartesian-acoustic.com/wom300-vdiy
-https://en.toutlehautparleur.com/speaker-kartesian-wom300-vdiy-8-ohm-12-inch.html
- https://www.kartesian-acoustic.com/wom300-vdiy
Historically, apparently due to much wasted BW, so left it out of the upgrade.
But are demodulation rings universally good though? I haven't been able to make a direct 1-on-1 comparison between otherwise identical drivers, so it's hard for me to say. I've compared a couple of small FR drivers, where the added copper seems to clean up a lot 'hash' (not sure why that word fits, it just does) in the mid-range and up, compared to the copper-free driver.
However, padding with series resistance / raising output impedance does something very similar. So much so, that, subjectively the balance was tipped in favour of the driver without de-mod (Mark Audio CHN-50 (w/o) vs Dayton PS95 (w)).
The difference is even more pronounced with the Alpair 5.3. Straight out of the box with no special treatment it was very harsh and unpleasant on a class-D chip amp. Add 10 ohm in series and it's a completely different driver. Beyond that, there could be other factors complicating a fair comparison.
The same series resistance trick works with a 10" woofer, but design-wise you're looking at dividing the amplifier power by a factor of 4. "Easy come, easy go" for cheap class-d efficiency!
Apart from that, demodulation rings seem to reduce Qms. There was a whole big thread about it a while ago. I'm not sure if anything conclusive came out of it, but there may be more potential for low-level detail, whatever that means, if the Qms value is high.
