18sound 6ND430 - Zaph tested

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http://zaphaudio.com/6.5test/

It appears that this driver offers midrange performance up there with the best Zaph has tested, as well as offering high sensitvity, power handling and a good value price as well.

Only thing it's missing is bass extension....



So my question is: what woofer to use to cover the bottom end?
I hope to achieve:
Similar SPL as midrange, taking at least 3db BS compensation into account.
Sealed F3 <= 80hz
Low distortion to match mid + SS6600 tweeter
Box volume for woofer <35L

Cheers

[ttan98]

You will find the B&C 6MD38 is equally competent at a cheaper price.

Go to this website for a new OB based on this midrange.

http://www.htguide.com/forum/showthr...8&page=8&pp=35

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Originally posted by ttan98
You will find the B&C 6MD38 is equally competent at a cheaper price.

Go to this website for a new OB based on this midrange.

http://www.htguide.com/forum/showthr...8&page=8&pp=35

Zaph's results suggest that it's not equally as competent.... (I think?) I'm not worried about the price so much.....


AE Lambda TD woofers: seem to have a good reputation, how's the distortion etc. compared to say scan speak 26w etc?




Cheers

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Specs of 4 & 8 ohm versions from 18sound customer service:


6nd430 4 Ohm

Fs 60 Hz
Vas 12.2 lt
Rc 2.9 Ohm
Qms 6.5
Qes 0.25
Qts 0.24
Bl 7.8 Tm
dBSpl 92 dB
Mms 13.9 gr
Zmin 3.7 Ohm
L1KHz 0.17 mH


6nd430 8 Ohm

Fs 61 Hz
Vas 12.6 lt
Rc 5.5 Ohm
Qms 6.5
Qes 0.28
Qts 0.27
Bl 10 Tm
dBSpl 92 dB
Mms 13.3 gr
Zmin 6.5 Ohm
L1KHz 0.28 mH

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Nobody else interested in this driver?

[Zero Cool]

I looked at using this driver for a high powered PA application. What impressed me is that the off axis response was pretty flat! and that the overall response had a rising top end but was basically flat over the whole range. a simple filter network could easily level the top end.

Here is a link to my post from 2007 where i looked at using that driver.
http://www.diyaudio.com/forums/showt...31#post1211131

[MisterTwister]

based on Zaphs measurements I'd choose B&C over 18sound.
At spl over 95db it's midrange distortion levels are comparable to best drivers in this group, and they are measured at much lower spl..

[JoshK]

I too came to slightly different conclusions when reading Zaph's data, which is why I think he delayed his comments. His comments I would probably agree with if I was planning to pick one of these drivers for a 80hz crossed sub/sat system. But I think the real use for these drivers are as a dedicated mid in a three way, which the B&C looks better for IMO.

[tinitus]

http://www.bcspeakers.com/index.php?...izione_prod=40

As a hifi driver I expect this 6" neo B&C to be even better
Also note that this neo version has short ring fore even lower distortion figures
Though I like the harmonium surround on the driver tested by Zaph

[augerpro]

tinitus I tested that B&C driver in my sig