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Old 6th April 2011, 01:07 AM   #11
18Hurts is offline 18Hurts  United States
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Interesting,

The phase plug looks rather odd--figured they would of put a taper on it. The response looks rather choppy--the jump from 79 to 100 dB at around 120 to 140 Hz would be very annoying.


Paper has a nice sound, I've always liked it but I'm generally more concerned with the other stats--flat frequency response, SPL and power handling. For cables, I use 14 AWG flexible Rapco cables since the Monster Cable 80's are long gone. If a voice coil or inductor ever gets larger than 14 AWG--then I'll care (but I still won't)

Does Sonodyne make a 4 or 5 inch full range? One day I'll build a BIB with a full ranger but run a subwoofer with it to give me bass. Interesting find, hope they roll out some more drivers of different sizes and materials.
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Old 6th April 2011, 05:03 AM   #12
amp_guy is offline amp_guy  United States
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Its just that for that kind of cash I would expect to see some alnico hangin on the back
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Old 6th April 2011, 05:30 AM   #13
GoranB is offline GoranB  Poland
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I like the enclosure
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Old 6th April 2011, 01:01 PM   #14
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Some of the specs seem off. Qes should be .465 rather than 1.465. Fo seems pretty high for an 8" full-range. Sd seems pretty low for an 8" also, although it does appear to have a fairly wide surround. They look pretty cool though.
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Old 6th April 2011, 01:34 PM   #15
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Hmm. I think beauty is in the eye of the beholder...
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Old 6th April 2011, 02:10 PM   #16
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The cones would make nice lampshades.
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Old 6th April 2011, 04:14 PM   #17
ra7 is offline ra7  United States
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Maybe you can light them from inside the cabinet
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Old 6th April 2011, 05:06 PM   #18
badman is offline badman  United States
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The oddball "phase plug" looks like an oddball dustcap, to me.
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Old 6th April 2011, 06:14 PM   #19
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Quote:
Originally Posted by 18Hurts View Post
Interesting,

The phase plug looks rather odd--figured they would of put a taper on it. The response looks rather choppy--the jump from 79 to 100 dB at around 120 to 140 Hz would be very annoying.


Paper has a nice sound, I've always liked it but I'm generally more concerned with the other stats--flat frequency response, SPL and power handling. For cables, I use 14 AWG flexible Rapco cables since the Monster Cable 80's are long gone. If a voice coil or inductor ever gets larger than 14 AWG--then I'll care (but I still won't)

Does Sonodyne make a 4 or 5 inch full range? One day I'll build a BIB with a full ranger but run a subwoofer with it to give me bass. Interesting find, hope they roll out some more drivers of different sizes and materials.
Click the image to open in full size.
SPL vs FREQ

Click the image to open in full size.
SD-655


Hello 18Hurts.

I believe the odd looking phase plug is probably just their wooden version of the metal phase plug that Zu Audio & Decware Audio are now both using in their full range drivers. I'm also in agreement with your assessment about the response looking rather choppy, but I like that Sonodyne isn't providing specs that aren't matched by listening tests. In addition I like that their two drivers don't have an almost constant rise in the freq resp. like Fostex or Lowther drivers do!

Personally I like the sound of paper quite a lot and really want to hear what the Han Ji ---{the correct spelling}--- paper sounds like quite a lot. As far as cables goes I use Stealth Audio's Dream speaker wires, Sakra ICs and M-21 Super power cords. I don't really care if other people believe wires can or cannot influence the sound, because for me, in my system I know they can. In fact, one of the diyAudio moderators Sy, should be coming to my home ---{hopefully this year}--- to do a controlled DBT to see if I can differentiate my wires from others under controlled conditions.

In case you're interested I run my present Fostex FE208ES-R drivers in Sachiko double-back-loaded horns (thank you Scottmoose) allowing them to run directly from the amp. In the Sachikos their freq resp is approx 80Hz to 10Khz. To augment the highs I use the incredible Pioneer HW-7, alnico, 16 ohm horn tweeters that are the very best tweeter be it ribbon, dome or horn I''ve heard to date! They XO in at about 5Khz and are good to about 25Khz. For subs I'm using Hawthrone Audio 15 inch "Augies" in an OB confiquration from 100Hz and below.

Finally to answer your question about whether or not Sonodyne makes a 4 or 5 inch full range or not. The answer is from what I've found I'd say no, but they do make a nice 6.5 inch full range called the SD-655 that sells for $658.50/pr and has a less choppy response and the follow specs:

* Revc = 5.800 Ohm
* Fo = 115.013 Hz
* Sd = 122.720sqMM
* Vas = 8.101Ltr
* Cms = 378.762m M/N
* Mmd = 4.274 g
* Mms = 5.056g
* BL = 6.624 TM
* Qms = 2.737
* Qes = 0.483
* Qts = 0.411
* Voice coil diameter = 25 mm
* Net weight : 1.6 kg

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Old 6th April 2011, 06:17 PM   #20
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Quote:
Originally Posted by amp-guy View Post
Its just that for that kind of cash I would expect to see some alnico hangin on the back
Hello again amp-guy! I'm in 100% agreement with you on that point. I too, expected to see some alnico. Unfortunately not all manufactuers apparently agree or believe, alnico sounds best...

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