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Philips AD 8080/m4
Philips AD 8080/m4
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Old 4th July 2016, 05:06 PM   #1
Lohengrimas is offline Lohengrimas  Netherlands
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Default Philips AD 8080/m4

Bought these pretty but not so hi-fi full rangers online, they came out of an almost unused stereo cabinet and are in good shape. Range is 75-18k hz., no T/S parameters given in the original literature.

Looking for fun builds/suggestions, so if you've build something with these fullrangers, please let me know! I'm not expecting these to offer earth-shattering performance over what I have now, so I might just go for something like an interesting omnidirectional concept.

I'm also mulling an "akoestische box A5" as it is called in the original Philips build plans. The 8080 is not mentioned as a recommended driver for this box (a tallish, square column, no ports), but the famous 9710 is; maybe I could just build the boxes and hope for a pair of 9710's to show up.

Click the image to open in full size.IMG_6070 by ctjr

Click the image to open in full size.IMG_6071 by ctjr, on Flickr
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Old 4th July 2016, 07:32 PM   #2
Gregje is offline Gregje  United Kingdom
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Hi,

I used them in tqwp about 1.1 high (folded ie the pipe was longer; probably 1.8). The mouth was about 9x22cm. I liked them very much with a decaware zen clone. Maybe not very hifi but very charming and envolving. They had lots of presence with not too demanding music.
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Old 4th July 2016, 07:35 PM   #3
Gregje is offline Gregje  United Kingdom
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Ps. Ad9710 is better. Goes lower. But has also its own bumps and dips.
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Old 4th July 2016, 07:51 PM   #4
planet10 is offline planet10  Canada
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Philips AD 8080/m4
That driver is best on an OB. Here are measures for the one set of AD8080/8 i have in my spreadsheet (measured with Fuzz Measure)

dave
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Old 5th July 2016, 08:48 AM   #5
Lohengrimas is offline Lohengrimas  Netherlands
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Quote:
Originally Posted by planet10 View Post
That driver is best on an OB. Here are measures for the one set of AD8080/8 i have in my spreadsheet (measured with Fuzz Measure)

dave
Great, thanks. I figured as much re the open baffles, but since I've sacrificed a lot of real estate already for a pair of open baffles, I don't think I can get away with another pair
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Old 5th July 2016, 05:16 PM   #6
planet10 is offline planet10  Canada
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If not an OB then a box as large as you can and make it aperiodic.

dave
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Old 6th July 2016, 08:47 PM   #7
Mayuri is offline Mayuri  Finland
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I also have a slightly newer pair from the same line, the 8082s. They indeed have a pretty weak magnet and thus high QTS. One possibility for them is an aperiodic box.

Also, sent you a PM concerning the 9710s.
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Old 7th July 2016, 12:36 PM   #8
Lohengrimas is offline Lohengrimas  Netherlands
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If not an OB then a box as large as you can and make it aperiodic.

dave
Figuring I could do foldaways (as per the Philips handbook anyway), what size would I be looking at?
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Old 7th July 2016, 05:38 PM   #9
planet10 is offline planet10  Canada
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foldaways?

dave
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Old 7th July 2016, 05:44 PM   #10
Lohengrimas is offline Lohengrimas  Netherlands
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foldaways?

dave
the original philips manual suggests a flat, slightly trapezoid board with a kind of threstle-like back legs with hinges as support, so the whole shebang folds flat.
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