Does anyone make cheap line-level crossovers?

[riker1384]

I have a pair of Klipsch RSX-3 speakers from the Klipsch iFi set; the subwoofer with built-in amps stopped working. I can get subwoofers on Craigslist, but they usualy don't have highpass filters. I want to power the mains with a minisystem that doesn't seem to have a highpass. Most subs don't seem to have a full line-level crossover either.

Does anyone make a cheap line-level crossover for home use? I see some for car stuff, or pro, but not home. It would have to be cheap. I think I need a crossover around 120Hz, or an adjustable one. Subs usuallly have a lowpass, so I mainly need the highpass part, but it would be better to have both.

 

[gmichael]

I have a pair of Klipsch RSX-3 speakers from the Klipsch iFi set; the subwoofer with built-in amps stopped working. I can get subwoofers on Craigslist, but they usualy don't have highpass filters. I want to power the mains with a minisystem that doesn't seem to have a highpass. Most subs don't seem to have a full line-level crossover either.

Does anyone make a cheap line-level crossover for home use? I see some for car stuff, or pro, but not home. It would have to be cheap. I think I need a crossover around 120Hz, or an adjustable one. Subs usuallly have a lowpass, so I mainly need the highpass part, but it would be better to have both.

These are the cheapest ones I've seen.

http://www.parts-express.com/wizards/searchResults.cfm?srchExt=CAT&srchCat=745&CFID=25392236&CFTOKEN=93446984

Didn't see 120 though. 100 or 150 were the closest I saw. Don't be fooled by the car audio section. These will work for any RCA cables.

 

[TLS Guy]

These are the cheapest ones I've seen.

http://www.parts-express.com/wizards/searchResults.cfm?srchExt=CAT&srchCat=745&CFID=25392236&CFTOKEN=93446984

Didn't see 120 though. 100 or 150 were the closest I saw. Don't be fooled by the car audio section. These will work for any RCA cables.

Those won't do the trick for him. They are cheap passive filters that will have a high insertion loss. He needs an active filter with fourth order slopes, and he will need an amp to power the sub.

I see that unit he has has a huge reputation for blowing up and burning out the electronics. It is discontinued, which sounds like a good thing. It seems an unsafe disastrous product and best trashed.

 

[BMXTRIX]

Telling it like it is TLS!

It sucks when you end up with bad product, but it seems like it may be best to just move on to something completely different. Cut your losses.

There are plenty of great choices out there, so good luck!

 

[riker1384]

The RSX-3 satellites I have are decent quality speakers that were also sold as a home-theater set. http://www.klipsch.com/na-en/products/rsx-3-overview/

I'm not going to throw them away. The problem is that the only way to get a proper crossover in the home audio realm seems to be with full-size HT receivers. I already have an amp, it's an Onkyo Minisystem. I also have a cheap Yamaha YST-10 6.5" sub, but no crossover, or at least no highpass part. Those FMODS might work if they're my only choice.

 

[TLS Guy]

The RSX-3 satellites I have are decent quality speakers that were also sold as a home-theater set. http://www.klipsch.com/na-en/products/rsx-3-overview/

I'm not going to throw them away. The problem is that the only way to get a proper crossover in the home audio realm seems to be with full-size HT receivers. I already have an amp, it's an Onkyo Minisystem. I also have a cheap Yamaha YST-10 6.5" sub, but no crossover, or at least no highpass part. Those FMODS might work if they're my only choice.

Your problem is the amp are in your sub. So you need a two channel amp driven from two active high pass filters, second order, to your satellite speakers. Then you need a couple of summing OP amps to send to a single channel low pass filter, fourth order, and then an amp to drive the sub. Or to drive the sub you could buy a plate amp with left and right line inputs that indicated it has the summing OP amps and it will have the fourth order crossover and the amp to drive the sub.

There is no other way of doing it. So actually a receiver will almost certainly be your cheapest solution. To achieve what you want is actually quite complicated.

 

[WaynePflughaupt]

I want to power the mains with a minisystem that doesn't seem to have a highpass. Most subs don't seem to have a full line-level crossover either.

Unless I’m missing something, how would a line-level filter like the FMOD even work for you? You’d have to have a line level connection between the mini system’s pre-amp outputs and amplifier inputs, and I doubt it has those.

Another option might be to get a sub that has speaker-level inputs and outputs. They typically have a passive high pass filter for the main speakers. Not ideal, but better than nothing.

Regards,
Wayne A. Pflughaupt

 

[highfigh]

There's a saying in construction- "You can have good, cheap fast. Pick two, because you can't have all three".

Cheap crossovers are worth every penny, good ones are worth every dollar.