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Old 21st March 2006, 01:13 PM   #1
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Default Completed Exact Speakers

Hi,

Don't know if you guys remember, some time back Chris Witmer posted on the Japanese Exact Drivers , I then took a chance to buy a pair of Exacts from Mr Sano. Well, the box designed by Mr Sano is finally completed with the help of my good friend and mastercraftsman Tony Wong.

Click the image to open in full size.

The box has a fixed sloping port on the right, there's a PVC telescopic zoom port on the left, which we fabricated locally .
The cabinets have cherry wood veneer.

Here's a shot of the inside back panel showing the pleated cloth stapled to the back, the squared hole is for the single front to back brace. The spk wires are vintage WE type cloth wires.



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Here's a shot from the top showing the cross brace before the top is attached.

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Sonically, the Exact drivers are excellent, up there with the best fullrangers like Lowther etc..
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Old 21st March 2006, 01:46 PM   #2
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That's very cool. Do you feel your truly getting full range out of these drivers?

Also wondering if Mr. Sano uses any sort of phase plug with those. Thanks for sharing.
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Old 21st March 2006, 02:07 PM   #3
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Originally posted by one1speed
That's very cool. Do you feel your truly getting full range out of these drivers?

Also wondering if Mr. Sano uses any sort of phase plug with those. Thanks for sharing.
I'm using the Exact without the EI control, the EI control AFAIK is a type of shelving network to boost the lows.. As it is currently, the high frequency IMO is about the best you can get with a fullranger, much better than say the Coral Beta 8, which I also own. The lows are there but slightly rolled ie you can heard the drums pretty well but you can't get floor rumbling type of bass.
IMO using phase plugs is one method of getting more highs from a fullrangers, Exact's method is yet another different method... a very thin aluminium or gold dust cap(mega $$ versions) is used to produce the highs... you can think of it as a sort of mechanical coaxially mounted tweeter diaphragm.
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Old 21st March 2006, 07:19 PM   #4
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I like the look of the cabinets very much. They match the drivers perfectly. Excellent job!

I'm sure they sound wonderful.

Nicest outdoor pool speakers I've ever seen

Doug
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Old 21st March 2006, 08:05 PM   #5
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Two ports.... one fixed the other telescoping?
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Old 21st March 2006, 09:54 PM   #6
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Quote:
Originally posted by Godzilla
Two ports.... one fixed the other telescoping?
Yes, the port on the left is the telescopic port. It's fabricated from PVC pipe. We managed to get a vendor who can do PVC welding so we got him to weld the PVC pipe to a PVC flange.
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Old 21st March 2006, 10:02 PM   #7
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And you slide that port on the left in or out to adjust the sound?

Do you think it works effectively?
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Old 21st March 2006, 10:14 PM   #8
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Originally posted by Godzilla
And you slide that port on the left in or out to adjust the sound?

Do you think it works effectively?
Unfortuantely we didn't spend that much time playing with the telescopic port... we spent a lot more time find out which amplifer was a better match .... the 300B SET turned out best. However, the telescoping port does seem to work but it's more for fine tuning the bass.
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Old 22nd March 2006, 01:49 AM   #9
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Nice! How much a pair are those drivers?
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Old 22nd March 2006, 04:35 AM   #10
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Quote:
Originally posted by doorman
Nice! How much a pair are those drivers?
From what i understand lots... something like $2-10k depending on driver? I saw one for auction and figured the pair would be $5k landed.

dave
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