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Old 26th January 2013, 07:21 PM   #11
frugal-phile(tm)
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You connect the amp to the empty terminals connected to the tellow and the red wire. A new poly 5uF caps would likely be a positive move.

dave
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Old 26th January 2013, 07:52 PM   #12
tubo is offline tubo  Philippines
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Thank you dave, i will do just that..

Could you please explain how the crossover is connected.

Thanks
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Old 27th January 2013, 12:34 PM   #13
tubo is offline tubo  Philippines
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Hi guys,

Im now enjoying these amazing speakers. I replaced the 5uf with 4.7uf k75 cap. Listening to without a baffle or box and the bass is great. It is very musical as what dave has said. I have also crossed it with a helper open baffle woofer at around 300hz with 1st order crossover and they seem to be blending well. these drivers are fantastic.

I will post pics as soon as i build a test baffle for them.

I still dont understand why the crossover is wired like it is. pls can someone explain..
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Old 28th January 2013, 12:43 AM   #14
IG81 is offline IG81  Canada
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The midbass/fullrange is wired directly to the amp and the tweeter has a capacitor in series with it. The tweeter+capacitor series circuit is tapped in parallel with the fullrange, from the amp's point of view.

IG
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Old 28th January 2013, 01:20 AM   #15
tubo is offline tubo  Philippines
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Thanks IG. Now it makes sense to me.

So if that is the case, i can run a biwire setup. 1 cable to the mid and another cable to the tweeter with the series cap. Pls correct me if im wrong.

Thanks again
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Old 28th January 2013, 01:52 AM   #16
Bare is offline Bare  Canada
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If memory serves Noresco built their mediocre products in Burnaby.. until they folded.
Neither outstanding Nor memorable by any stretch of the imagination.. even 'back then'.
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Old 28th January 2013, 02:01 AM   #17
IG81 is offline IG81  Canada
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Quote:
Originally Posted by Bare View Post
If memory serves Noresco built their mediocre products in Burnaby.. until they folded.
Neither outstanding Nor memorable by any stretch of the imagination.. even 'back then'.
I've so far been exposed to these here speakers with the Isophon coax, as well as the smaller NEC-511, with Philips AD7060 6" fullrange - generally crummy construction IMO. Good thing for the DIY-folk they used fun drivers though!

IG
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Old 28th January 2013, 02:13 AM   #18
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Quote:
Originally Posted by Bare View Post
If memory serves Noresco built their mediocre products in Burnaby..
Certain vinages are a great source for some very nice vintage drivers.

dave
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