Philips 9710 enclosure recommendation (pics) - Page 2 - diyAudio
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Old 17th July 2012, 09:14 PM   #11
lechuck is offline lechuck  Netherlands
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Quote:
Originally Posted by ARIYAHOOR View Post
You didn't read my post literally I said "they are neck-breaking to build" not "they are too big" I can't build something like this. BTW they are big!
Most BLH designs are neck-breaking to build. Personally I am looking for a nice enclosure for my Coral Flat-8 speakers and I am thinking of building Lowther TP1 enclosures. The reason why this design is very appealing to me is because of the double horn (one in frontside and one on the backside).

Click the image to open in full size.

The building plans for these enclosures are available on the web if you search properly. The Lowthers are build out of allot of different sized / shaped boards, these plans are insane and not for the beginner
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Old 17th July 2012, 09:15 PM   #12
VaNarn is offline VaNarn  Australia
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An 88 litre internal volume vented enclosure tuned to 40 Hz is a good match for the Philips 9710M/01.The braided voice coil leads need to be checked and replaced if necessary as they have a tendency to harden with age.There are some simple refinements for this driver and a cowl of 'Tontine' or similar fitted snugly behind the frame is one of them.A slot diffuser fitted at the front can help alleviate an aggressive high end and a suitable coating (flexible) applied to the corrugated surround will preserve this item for a long period.
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Old 17th July 2012, 09:57 PM   #13
hm is offline hm  Europe
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Default is this a BLH?

Hello,
yes,

the driver need support up to 800 Hz + rolloff,
in the Schalmei double horn sat you will get it,
and you need a good sub,
in the double horns with rear invers driver
you get support up to ~2 kHz and a best bass
by delete the bass imp in the lowest oktave.
look:
Schalmei-Sat
saxophon
RDH

9710 is a good driver in the right enclosures,
try it without added tweeter
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Old 18th July 2012, 08:12 AM   #14
DrBoar is offline DrBoar  Sweden
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45 square feet? that is like 4 square meters and in such a small room any amp is more than enough.
If you mean a room of 45 by 45 feet and thus 2000 square feet you are likely to run out of steam with 4 Watt.

I would go for a tweeter as the high range of any 8" driver beams a lot. Look on the danish page on how he Equed and crossed over to get inspiration.

Many years ago I uilt the Lowther Accousta 115 basshorn and used the Philips 9710 as a driver, very sharp beaming tweeter range and no bass at all below 70 Hz.
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Old 18th July 2012, 09:17 AM   #15
Aiace is offline Aiace  Italy
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absolutely no horn!!!!
Horns are good for low Q loudspeakers and the 9710 has Q around 0,7-0,8 and if it is old and not correctley stored, the magnet might have lost his power and the 9710 might have a Q even more than 0,8.
My 2 cent suggest is to try it OB. If you don't like (poor bass, etc) you can try a closed box at around 200litres

Aiace
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Old 18th July 2012, 09:39 AM   #16
hm is offline hm  Europe
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"absolutely no horn!!!!"
i drive the Schalmei and the double horns with the B200 Qt o,8,in my case the TSP
not the point.
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Old 18th July 2012, 11:00 AM   #17
DrBoar is offline DrBoar  Sweden
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According to Martin J King (Horn Theory) drivers with more of a high Q can be used in backloaded horns. However, that they simulate well amplitude wise does not ensure that they will sound goood, but ruling them out on Q alone might be premature.
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Old 18th July 2012, 12:37 PM   #18
IG81 is offline IG81  Canada
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Hi, these are some nice drivers you got, they look to be in fantastic shape!

I have a pair of the ceramic magnet version, which has pretty much the same parameters as yours. I used mine in Karlsonettes and they do pretty good, but I believe a better Karlson could be designed for them. AD9710 is on the left; on the right is Richard Allan CG10T.

Click the image to open in full size.

A big-@$$ TQWT might be your best bet for these. I've attached a variety of Philips enclosures made for the 9710 that I have collected.

IG
Attached Images
File Type: jpg 9710 2-way.jpg (156.5 KB, 331 views)
File Type: jpg 9710 acoustic box 2.JPG (138.4 KB, 321 views)
File Type: jpg 9710 aperiodic box1.JPG (174.8 KB, 314 views)
File Type: jpg 9710 aperiodic box2.JPG (131.7 KB, 86 views)
File Type: jpg 9710 bass reflex cabinet 1 exploded view.JPG (120.7 KB, 102 views)
File Type: jpg 9710 bass reflex cabinet 1.JPG (135.5 KB, 107 views)
File Type: jpg 9710 box A1.jpg (147.0 KB, 98 views)
File Type: jpg 9710 box A4.jpg (189.6 KB, 100 views)
File Type: jpg 9710 box A5.jpg (183.5 KB, 100 views)
File Type: jpg 9710 box A6.jpg (143.0 KB, 96 views)
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Old 18th July 2012, 08:44 PM   #19
DrBoar is offline DrBoar  Sweden
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I actually bought the TP-1 plans from Lowther and scaled it down for a 5"driver. The plans were a mess with the horn both expanding and contracting, my guess is that they converted if rom imperical measures to metric and someone less talented with calculator doing the job and then not bothering testing the results obtained. The top vibrated quite badly as I recall. In hindsight I can not understand why I built such a complicated design for such a crappy driver. I think it was a cheap Japanese driver with a dual cone thing in fake aluminium

So if you build them make sure that the flare is resonable ( not negative in som bends) and that the parts fit together...
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Old 19th July 2012, 06:18 AM   #20
Aiace is offline Aiace  Italy
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Quote:
Originally Posted by hm View Post
"absolutely no horn!!!!"
i drive the Schalmei and the double horns with the B200 Qt o,8,in my case the TSP
not the point.
And do you know what is the total Q now?
If the total Q is too high you might transoform the impulse answer of the louspeaker from very fast (las the 9710 has) to very slow.
I reccomend this (high Q) only if you like bumby and confusing bass.
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