A question on a B&W high pass filter


I have a B&W 800 series variable high pass alignment filter for my 803 matrix speakers. I have never used it & wondered if I need to? What would I be expected to hear? Or should I just sell it & forget it? Also, what is the thing worth? New, in box. I never hooked it up since i had no idea of why I would need to. If you can help me understand this question, please answer. Thanks.....
rws1950
I found this thread via google when I was researching a question about these filters. I was able to get a B&W 801 high pass filter. This one doesn't have the dip switches to set the filter to a specific 800 series speaker. It is preset for the 801 series B&W speaker only. Would it be bad if I used this filter along with the B&W Matrix 805 bookshelf speakers? I haven't tried it yet and don't want to risk damaging the 805s I have.

Thanks
The short answer is that you probably won't damage your speaker (as long as you don't overpower them), but you also are not going to get much benefit. The filter is preset for the Freq. response of the 801. The variable filter allows you to set the response to the various models (See this link for detailed specs-http://kenrockwell.com/audio/b-w/800-series-bass-alignment-filter.htm). If anything , it might muddy the sound of the speakers. A third party manufactured these devices, and the parts are kinda crappy. If you really want to use the filter, I'd suggest selling this one and keep looking for the variable version with the DIP switches. Good Luck!
Hi Elee

Thanks for the input. I'm following your suggestion. I wonder if I do get the variable version if I should pay to have the parts upgraded. From pictures I've seen of the interior it doesn't look so bad. The power supply I couldn't tell though if it was shoddy.
Jedinite-
Don't know what you are willng to spend, but your other options for better quality are-
1-Get the original, upgrade parts yourself if you have the expertise.
2-Look for a used Golden Flutes Filter specific to the 805- I haven't seen many for sale, and what people are asking is IMHO (upwards of $800) not worth it.
3-Look for a used Krell unit, which has internal switches to set for any matrix series model ( will probably run 1200-2000)
Hi Elee

I'll work on the original and then save up the money to upgrade the parts after listening to it for a bit. From the pictures on the Ken Rockwell site the box seems small and really tight space for a novice like me to work with.

I have seen the Golden Flutes appear on a popular auction site for about what you stated. The listing got pulled before I could ask about it.

The Krell unit looks nice but huge. I only saw it on an old Audiogon listing from a year or so ago. I think the Krell unit will cost significantly more than what I paid for the Matrix 805 bookshelf speakers.

Have you heard of the Anodyne filter that was made for the B&W 800 series speaker line? Another member had told me about it but I couldn't find much info about Anodyne. I guess they were a boutique maker who is now out of business.

Thanks again.