Scan Speak 25w/8565.01 10" bass driver - diyAudio
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Old 28th May 2011, 09:24 PM   #1
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Location: Bakersfield Ca
Default Scan Speak 25w/8565.01 10" bass driver

I have 4 of these drivers for sale, low hours they are mounted in cabinets that are a design by Lynn Olsen, here is a link The Ariel and the ME2
Scroll up to good base.

I am asking $100 each + freight and 4% PayPal. I will throw in the cabinets but it will have to be local pickup.

Bill


25W/8565-01
24 cm bass driver with paper cone

power handling (continuous/program) = 100 W
resonance frequency fs = 19 Hz
impedance R = 8 Ohm
sound pressure level SPL = 88 dB (2,83V; 1m)
DC resistance Re = 5,5 Ohm
effective piston radiating area Sd = 330 cm2
effective mechanical mass incl. air load 47 g
equivalent volume of compliance Vas = 229 l
total Q factor Qts = 0,34 (Qms=5,6, Qes=0,36)
maximum peak linear excursion vibration xlin = +/- 6,5 mm
mounting diameter d = 228 mm
overall diameter d = 255 mm
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Old 28th May 2011, 09:26 PM   #2
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Here is a picture of the cabinets,

Bill
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File Type: jpg P1020046.JPG (101.7 KB, 242 views)
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Old 29th May 2011, 04:23 PM   #3
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We have traveled the same path. I have 4 already. That is an exceptional offer.
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Old 29th May 2011, 05:12 PM   #4
jazko is offline jazko  United Kingdom
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Wish I was living in the US
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Old 29th May 2011, 05:26 PM   #5
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They are good drivers and cabinets, I could never get the tuning with my speakers to work out. A shame I have a interested buyer for the drivers without the cabinets. The cabinet construction was as Lynn recomended 3/4 Baltic burch , 4 braces Swiss cheesed, one side dampened. Quite a bit of time though I could have done better on the finish.

bill

Last edited by wirewiggler; 29th May 2011 at 05:31 PM.
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Old 1st June 2011, 09:10 AM   #6
qusp is offline qusp  Australia
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wish i was over there, would snap this deal up
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Old 1st June 2011, 03:58 PM   #7
kmibb is offline kmibb  United States
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I'm in Bakersfield if you're looking to trade for anything. Send me a PM
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Old 2nd June 2011, 05:17 PM   #8
DaveM is offline DaveM  United States
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I have a pair that I am using in an identical application. I had the same issue getting them to integrate. They always ended up sounding boomy and a bit of that "one note" bass syndrome. I ended up moving them into sealed boxes last year. I know I lost a lot of bass extension, but the tuning became easy. With a bit of bass boost down around 25 hz, they do a great job.
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Old 2nd June 2011, 10:54 PM   #9
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Dave,
My problem exactly what did you end up with for a box ? May go that route as no buyers have panned out.

Bill
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Old 3rd June 2011, 12:12 PM   #10
DaveM is offline DaveM  United States
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I don't know off hand. I could measure this weekend when I am home. I just used the factory specs and did a calculation for a sealed box. I uses a .707 Q and moved on. In fact I was able to cut down my ported boxes to about 1/2 the size for the sealed box. It only cost me my time and the price of glue.

I found that the heavy cone of that driver just didn't have the control I was looking for with the soft air spring of a vented enclosure. The tight spring of the sealed box made it very musical, though lacking the ultimate bass extension. What I found strange is that for years ProAc used that same driver in a very small vented sub. I'm not sure how they did it, but it was very nice. I borrowed one from my local shop for a while before buying the ScanSpeaks to build my own.

I can't believe nobody is snapping those up at that price. They just need the right box. I am now considering building them into a 3 way with a ribbon, 4" mid and 10" sealed sub. With a well designed crossover, it would be truly world class.
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