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Multi-Way Conventional loudspeakers with crossovers

Are SS 18W/8545-00 and 18W/8545 identical?
Are SS 18W/8545-00 and 18W/8545 identical?
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Old 26th March 2020, 06:54 AM   #1
Rallen is offline Rallen  Denmark
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Default Are SS 18W/8545-00 and 18W/8545 identical?

Am I correct in assuming that this 18W/8545 driver is identical to 18W/8545-00, even though it doesn't say "-00"?

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Old 26th March 2020, 07:10 AM   #2
AllenB is offline AllenB  Australia
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Are SS 18W/8545-00 and 18W/8545 identical?
Apparently.
It seems it's been re-released as 18W/8545-01. Here is the latest datasheet which was updated 2014 - https://www.scan-speak.dk/datasheet/pdf/18w-8545-01.pdf

and this page showing it now called 'classic - new version' - ScanSpeak Classic 18W/8545-01 New 7" Mid Woofer Paper Cone
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Old 26th March 2020, 07:18 AM   #3
Rallen is offline Rallen  Denmark
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Exactly! My theory is that it was labelled 18W/8545 originally, until they released the 18W/8545-01. From there, I assume they started labelling the old one 18W/8545-00 to avoid confusing..

So my hypothesis is that 18W/8545 and 18W/8545-00 are the same thing with different age.
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Old 26th March 2020, 11:08 AM   #4
system7 is offline system7  United Kingdom
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I looked up the PDFs.

As far as I can see, Scan have just done a little production update here. Probably bringing all their models into line.

The new Aluminium former 18W/8545-01 does have a 10% lighter cone, which is the main event. It's 1dB louder, and more resembles the Kapton former 18W/8545 K00 on frequency response.

A slight chassis difference is the 00 had tiny depressions either side of the 6 mounting holes.

Your picture seems to show this.
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Old 26th March 2020, 12:19 PM   #5
Hylle is offline Hylle  Denmark
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The real difference between the old and the new -01 model, is to show the driver now is with a aluminium chassis, made from a new tool. Where the old -00 was made with a magnesium chassis, this tool is probably worn out now. The new tool is just re-made for alu casting. For us it is the exact same driver, but I belive it is usefull for Scan Speak to be able to seperate new and older drivers with a new part number.
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Old 26th March 2020, 05:18 PM   #6
celef is offline celef
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every time i see this driver (8545 or 8535) i think of the old proac response 2.5 loudspeaker, did proac use a custom driver or not?
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Old 26th March 2020, 06:30 PM   #7
gornir is offline gornir  Sweden
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Are SS 18W/8545-00 and 18W/8545 identical?
Quote:
Originally Posted by Rallen View Post
Am I correct in assuming that this 18W/8545 driver is identical to 18W/8545-00, even though it doesn't say "-00"?

Click the image to open in full size.
Hi,

Here you can read about the difference between -00 and -01.

www.audioexcite.com >> Blog Archive >> ScanSpeak 18W/8545 Measurements!

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/Göran
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Old 26th March 2020, 11:25 PM   #8
Jonasz is offline Jonasz  Sweden
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At one point ss renamed all(?) their drivers with an additional -00. I have the 9900 both with and without the extra 00. I believe 8545 and 8545-00 is the same driver.
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Old 27th March 2020, 03:56 AM   #9
88man is offline 88man  United States
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The -01 version is supposed to be more robust, less spider resonances, wider screw holes. Electrically, it’s essentially equivalent. I have it in my eVe ii speakers. Phenomenal driver!
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