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-   -   BSS FDS 340 crossover (http://www.diyaudio.com/forums/analog-line-level/219065-bss-fds-340-crossover.html)

Michael F 4th September 2012 05:44 PM

BSS FDS 340 crossover
 
Does anyone have a card component value vs. frequency chart to change crossover points on these units.
Net search reveals nothing and no replies from manufacturer either.
Any info would be most appreciated.
TIA

Charles Darwin 4th September 2012 08:24 PM

If they are the same as the ones for the FDS360 they are on the BSS site.

http://www.bssaudio.com/product_down...filterdata.pdf

Michael F 4th September 2012 08:31 PM

I did come across the model 360 link as well. I`m considering the purchase of a 340 and dont have one on hand to compare against a 360.

Harmon sent me a few PDF`s but unfortunately none contained the chart I was looking for and they couldnt locate one either.

Damn fine crossover in my opinion, would love to get one in the system:)

Charles Darwin 4th September 2012 09:04 PM

I really do suspect that the filter plug ins are the same for 360s and 340s but only having a couple of 360s I can't guarantee that.

Btw I got noticeable improvement from replacing the standard opamps (TLO72) with Burr-Browns OPA2134.
There are even better ones but 2134 are a drop in replacement and I got mine very cheap as they were left over non RoHS compliant ones.

Michael F 4th September 2012 10:47 PM

Thanks for the heads-up on the op amp swap, sounds worthwhile.
Back in my touring days in the Eighties, 340s ruled the pro sound reinforcement world, where did they all go?

Charles Darwin 5th September 2012 09:53 AM

Over here it was 360s or Klark Tekniks.

Still think 340s are a slightly simplified version of the 360 (I think 340s are lacking the continuous phase adjustment for example) and the plug in cards are the same.


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