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Old 19th February 2013, 10:57 PM   #11
IG81 is offline IG81  Canada
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Quote:
Originally Posted by soren5 View Post
By the way, which Peerless are you referring to? Couldn't find that model number you wrote.
The official part # might be 830875 then. I used the number listed over a Solen.

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Old 19th February 2013, 11:11 PM   #12
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So when you say "yes" I assume you mean for the better? Could it be that the FF85WK simply don't behave very well in a sealed enclosure?
Yes, performs better. "not open" typically is reflection coming back thru the cone. THe uFonkenSET for instance is more open than the slightly smaller uFonken, the TLs are larger volume and lower back pressure.

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Old 19th February 2013, 11:13 PM   #13
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The official part # might be 830875
Yes, that is the one we are using. Relatively expensive when using multiples and likes a surptisngly large box, but gave far more than expected in the prototypes.

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Old 19th February 2013, 11:16 PM   #14
soren5 is offline soren5  Denmark
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Originally Posted by IG81 View Post
The official part # might be 830875 then. I used the number listed over a Solen.

IG
Could be worth a try. Only problem is it's 8 ohm. The woofer should ideally be 4 ohm in a 2.1 like this. Makes it easier to find a digital amplifier (4 single-ended: 1 for each full-range driver and 2 bridged together for the woofer). Thanks for the suggestion though.
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Old 19th February 2013, 11:25 PM   #15
soren5 is offline soren5  Denmark
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Yes, performs better. "not open" typically is reflection coming back thru the cone. THe uFonkenSET for instance is more open than the slightly smaller uFonken, the TLs are larger volume and lower back pressure.

dave
Interesting. So, if I made TLs a la Tysen for the Fostex in this application, could they then have similar sized enclosures (1-1.5L) and a length of only 15-17cm?
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Old 19th February 2013, 11:40 PM   #16
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That woofer will stand ~700Hz cleanly, if its anything like its Neodymium sister. I wouldn't call it "slow" by any stretch.

If you're using some signal processing (or if you can plug a laptop in), apply a little treble boost and see what you think.
FWIW, I wasn't impressed with the budget Dali speakers I've heard. Call the Fostexes correct, and say the Dalis are too bright

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Old 20th February 2013, 12:14 AM   #17
IG81 is offline IG81  Canada
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That woofer will stand ~700Hz cleanly, if its anything like its Neodymium sister. I wouldn't call it "slow" by any stretch.
I never heard the driver, it was a mere theory. Good new for the OP then!

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FWIW, I wasn't impressed with the budget Dali speakers I've heard. Call the Fostexes correct, and say the Dalis are too bright

Chris
+1 Afterall, how could a commercial (yuck - dirty word) product rival anything DIY?

IG
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Old 20th February 2013, 12:49 AM   #18
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Originally Posted by soren5 View Post
Could be worth a try. Only problem is it's 8 ohm. The woofer should ideally be 4 ohm in a 2.1 like this. Makes it easier to find a digital amplifier (4 single-ended: 1 for each full-range driver and 2 bridged together for the woofer). Thanks for the suggestion though.
In a boombox this woofer is probably not a good choice due to the volume it requires. When i was working on my latest MTM (with FF85wk) 2 of the Peerless would have needed 30 litres, the 2 SilverFlute W14 i ended up using needed 10litres -- the SF are available in both 4 & 8 ohms. The W14 are cheaper IIRC too.

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Old 20th February 2013, 12:52 AM   #19
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Originally Posted by soren5 View Post
Interesting. So, if I made TLs a la Tysen for the Fostex in this application, could they then have similar sized enclosures (1-1.5L) and a length of only 15-17cm?
The sub enclosures & TL in my last ate up 3 litres and were ~26 cm long. The TL is not very critical in dimension but erring on the large size and longer line is probably better... it is dominated by the damping, but larger gives more room for damping.

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Old 20th February 2013, 11:48 PM   #20
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the 2 SilverFlute W14 i ended up using needed 10litres -- the SF are available in both 4 & 8 ohms. The W14 are cheaper IIRC too.
I've looked at the SilverFlutes before, but they don't seem easy to get hold of in Europe.
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