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-   -   Are SS 18W/8545-00 and 18W/8545 identical? (https://www.diyaudio.com/forums/multi-way/351688-ss-18w-8545-00-18w-8545-identical.html)

Rallen 26th March 2020 06:54 AM

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"?

https://i.imgur.com/iIt2Qz9.jpg

AllenB 26th March 2020 07:10 AM

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

Rallen 26th March 2020 07:18 AM

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.

system7 26th March 2020 11:08 AM

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.

Hylle 26th March 2020 12:19 PM

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.

celef 26th March 2020 05:18 PM

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? :)

gornir 26th March 2020 06:30 PM

Quote:

Originally Posted by Rallen (https://www.diyaudio.com/forums/multi-way/351688-ss-18w-8545-00-18w-8545-identical-post6134702.html#post6134702)
Am I correct in assuming that this 18W/8545 driver is identical to 18W/8545-00, even though it doesn't say "-00"?

https://i.imgur.com/iIt2Qz9.jpg

Hi,

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

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

Regards

/Göran

Jonasz 26th March 2020 11:25 PM

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.

88man 27th March 2020 03:56 AM

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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