6.5" woofer choice

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#2
Or something in between 18 liters, 15 liters and 8 liters.
For a 15/16L you have
SB ACOUSTICS SATORI MW16P-4
SB ACOUSTICS SB17MFC35-4
SCANSPEAK 18W/8545-00
PEERLESS 830883 HDS
also ALUS,
PEERLESS HDS-P835025
SB Acoustics SB17NAC35-8
and smaller 12L
SEAS H1224-08 L18RNX/P
also SEAS Prestige Vintage Coaxial link
H1333-08/06 T18RE/XFCTV2
 
#3
diypass said:
i'm planning to project two ways loudspekaer with 6.5" woofer.
the price of drivers will be mid like seas, sb-acoustics or scan-speak discovery
loading : reflex
tweeter : no ferrofluid
the typology should be like these :
Spendor Audio Systems
Kudos Audio - Cardea C10 Standmount Speaker
Harbeth UK - High quality loudspeakers made in England

no kits

thank you in advance
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ER10RNX or L18 with 27TBFG/DXT (no FF in htis one). The Al tweeter and either woofer work well together. No too expensive either
Use Behgtinger Truth B2031 design. Look at ZAPH site Just punch in ZAPH He does a designs based on similar. Silk for me sucks, good sound but something missing
 
#4
ok guys,
satori and SCANSPEAK 18W/8545-00 are too expensive.
no coaxial
i don't like alu or "metal" drivers

so, now, for my teste the woofer candidates are :
- SB ACOUSTICS SB17MFC35-4 also paper version
- ER18RNX and in comaprison with CA18RNX ?, i have seen that most people use the ca insted of er, why ?

if there are other candidates please advise me

about tweeters :
- H1149-06 27TDC
- SB Acoustics :: SB26STAC-C000-4
- scan speak d8330 (is without ferrofluid?, i don't know)

if you are other suggestions please, should be fine
 
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#7
I'm very happy with the 6.5 inch Peerless Nomex cone drivers (about $60 each). I'm building a system with them right now, to be passively crossed over at 3kHZ to a 1 inch Seas Millenium dome that I happen to have (very good but too expensive - $230 ea.). If I didn't already have the milleniums, I'd consider the Fountek 1.5 inch ribbons (about $60). I plan to have a closed box, so I can actively pump up the low bass to make them relatively flat down to 35HZ. I also plan to design the passive one pole crossover to have a several dB dip at the crossover frequency for several reasons; the woofer response peak at about 5kHZ, because a tweeter has more distortion below 3kHZ with a one pole crossover, and because a dip at 3-4kHZ sounds significantly more pleasant.
 
#11
diypass said:
ok, guys, the woofer candidates are :

- ER18RNX
- CA18RNX
- SB17NRXC35-4

which do you prefer/use, please explain me why
thanks
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Seen no tests on the SB17RNXC35-4 -good spec though.
Back to ZAPH

H1499-06 27TBCD/GB-DXT
H1456-08 ER18RNX

or

or H1212-06 27TBFC/G
and L18RNX or EN18RNX (clean mid)

with ZAPHs cross over.

The DXT tweeter will give better dispersion with its wave guide.

Done work with some of these, but if you want bass you will need a sub or a three way, especially if larger room
 
#15
Why reinvent the wheel?

you don't have to buy the kit version of the SR71 to benefit from the fair amount of work that Zaph put into the driver selection and XO design

Then there are any number of very thoroughly thought out designs on Troels Gravesen's site, from which you could glean sufficient guidance.
DIY-Loudspeakers

As for the Silver Flutes - don't let their budget pricing scare you off - there are any number of well enough liked mainstream commercial products with drivers costing possibly far less than they when purchased in OEM bulk quantities.

It would help if you could clarify as to your application - the links in your initial post included a Harbeth update to the classic BBC LS3/5, while the others encompassed a much wider range.

As Samuel suggested, there are some excellent choices in wide-band drivers by folks like Mark Audio, the Scanspeak/SEAS group, and Jordan to name a few, all of which are capable of great performance within their application limits.

And as was already pointed out, with something of the size class of any LS3/5 clone, woofer(s) / subs should be considered mandatory for anything beyond near field monitoring, or small room listening at moderately low levels. Those pesky laws of physics get in the way every time.
 
#16
diypass said:
what do you mean with "clean mid" ?, is it tiny bass ?
low freq on er18rnx are good or maybe there is a better driver with the same price ?
to which speakers have compared er18rnx ?
i'm very intrested
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As prev post says SR71 is good choice

They are perhaps as good as it gets at the price, for this sort of agile fairly sensitive mid/bass in a smallish 2 way reflex. Long throw voice coil helps the bass. Clear clean voice reproduction. And either tweeter tops it out nicely. L18 Al metal cone mid, also good, but risks cone break up resonance, unless well damped enclosure or use deep notch filter at around 13KHz. Only suitable for a smaller room without a dedicated woofer

The point is though.... If you follow either one of Zaphs schemes you will get a good result for a smallish 2 way, but the DXT also helps the mid upper treble dispersion which delivers smooth treble.
 
#18
boldname said:
As prev post says SR71 is good choice

They are perhaps as good as it gets at the price, for this sort of agile fairly sensitive mid/bass in a smallish 2 way reflex. Long throw voice coil helps the bass. Clear clean voice reproduction. And either tweeter tops it out nicely. L18 Al metal cone mid, also good, but risks cone break up resonance, unless well damped enclosure or use deep notch filter at around 13KHz. Only suitable for a smaller room without a dedicated woofer

The point is though.... If you follow either one of Zaphs schemes you will get a good result for a smallish 2 way, but the DXT also helps the mid upper treble dispersion which delivers smooth treble.
Click to expand...
i don't understand nothing.
no answer to my question about er18

p.s.
are welcome opinions of people who have tried the speakers in question
- ER18RNX
- CA18RNX
- SB17NRXC35-4
thank you
 
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#19
The SB drivers have a prominent breakup region which needs to be dealt with in the Xover.
I have both ER18RNX & CA18RLY; the ER18 is more 'analytic', but lacks bass, I much prefer the CA18RLY, rich mids & plenty of bass, at the expense of a larger box & smaller voice coil probably can't handle as much power. The RNX is probably somewhere in the middle
 
#20
PeteMcK said:
The SB drivers have a prominent breakup region which needs to be dealt with in the Xover.
I have both ER18RNX & CA18RLY; the ER18 is more 'analytic', but lacks bass, I much prefer the CA18RLY, rich mids & plenty of bass, at the expense of a larger box & smaller voice coil probably can't handle as much power. The RNX is probably somewhere in the middle
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yes, sb have breakup, but sound fantastic, however i'll filter it below the breakup region...
rly is for sealed enclosure so has high qts=more bass but undumped
rly has more bass but is muddy then ca18rnx or er18rnx
so my dilemma between ca18rnx and er18rnx
do tried ca18rnx ?
 
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