High Pass Filter for Mains

My problem is too much bass and no acoustic way to control it. I've managed to reduce the 10db bump at 63hz to 5 db, but I want to try a sub to better control it. So my plan was to high pass my mains and use the sub for control below 90hz. I've found several active crossovers but they're both expensive and overkill for what I need. I'm looking at an SVS 1000pro sub. 

I found what I need at Marchand Elec. for a reasonable price.

XM46SB-AA   Passive crossover 24dB/oct in small box,RCA, two channel  $ 325.00

But there is a 4 week lead time and I'm not so confident in the company after a brief conversation. So one question is about whether this company is solid and worth waiting for the product. 

Meanwhile, I thought I'd ask the group about alternatives or other suggestions. Are there other high quality passive HP filters out there under $500? I also looked at the HSU High End crossover but it's active and I don't really want additional electronics in the way. I don't care much about the packaging as long as the parts quality is good. Maybe there are other companies like Marchand who make such a product?



Thanks again for all the suggestions. I feel much better about Marchand and it's the right solution for my needs. I always prefer the simplest circuit with the fewest components. 

The SVS SB-1000 has dsp eq built in with app control. I definitely expect to utilize it. Otherwise I would just be duplicating my problem. If it works out, I would look to upgrade to a sub with variable phase. 

From 100hz up, my system is +/- 1.5db and sounds great. If I can get the frequencies below that to +/- 3db I'll be happy. 

you may also want to consider acoustic treatment, IE bass traps to help control bass nodes etc.  


I have 9 24x48x6 bass traps on the back wall and ceilings, and four 24x48x4 panels. They do a great job above 100hz. It's a small room and nothing is really gonna deal with below 80hz. I'm not sure this experiment is going to work but I won't know unless I do it. 

I have the Marchand XM446 passive balanced high pass filter and it worked as advertised and seemed to add nothing to the sound of my system except for cutting off the low bass signal to my main speakers as it was designed to do.  However, since my main speakers are an acoustic suspension design that extends to 40 Hz, and because I roll the two subs in at a pretty low frequency of 45 Hz, after a year of comparisons I concluded the filter was not really needed in my system, but I haven't yet gotten around to selling it.  I suspect the filter would work great with most stand mounted main speakers and even some floorstanders that are being called on to do a bit more in the bass than they are capable of. 


What is the crossover point on yours? I need 80hz. Do you want to sell it? I ordered one today but it's four weeks out so I can still change my plans.