Monitor 70s crossover freq at 40 Hz?

nedh84

Should I set my Monitor 70s crossover freq to 40 Hz, 80Hz or set to Large? I'm not sure what settings to use on my PSW505 sub. I need to experiment moving it around my bedroom.

I have a CS2 center and M60's in the rear as well. What about those?

Slinger182

I got my 505 at 80Hz for the fronts and 120 for the center and rears.

dasanii19

I would think you would set the f/r/c to 60hz or 80hz and the sub to 120hz.

Someone correct me if im wrong.

dasanii19

anyone have any input? id like to hear your thoughts.

nedh84

I haven't had the opportunity to move my sub around the room to find the "sweet spot" but I think what you said seems sound dasanii. I can understand that 40 Hz out of the Monitor 70's wouldn't be very audible but 60 Hz plus should be fine.

I'm not too concerned with pushing my amp past its limits (hence a need to raise the crossover freq) as right now I believe I have adequate power.

I also would love to hear what other Polkies with dedicated power supplies have set as their crossover freq for the M70's.

dasanii19

nedh84 wrote: »

I haven't had the opportunity to move my sub around the room to find the "sweet spot" but I think what you said seems sound dasanii. I can understand that 40 Hz out of the Monitor 70's wouldn't be very audible but 60 Hz plus should be fine.

I'm not too concerned with pushing my amp past its limits (hence a need to raise the crossover freq) as right now I believe I have adequate power.

I also would love to hear what other Polkies with dedicated power supplies have set as their crossover freq for the M70's.

I would like to keep this thread going as I too have the same setup as you, except I have a epik empire subwoofer. Ive been playing around between 40hz-80hz. I did turn up the LFE to 120hz instead of 80hz.

dasanii19

bump

dasanii19

I set my fronts/rears and center to 40hz and found that to be the crossover freq. I like. Will the 40hz blow my speakers?

mdaudioguy

dasanii19 wrote: »

I set my fronts/rears and center to 40hz and found that to be the crossover freq. I like. Will the 40hz blow my speakers?

No. However, I've always had better luck at 60 or 80. (I went back and forth and ended up at 80.) Plus, bumping it up takes some of the load off your receiver/amp, "focusing" its efforts on a narrower range. Just my 2 cents. YMMV. Good luck!

dasanii19

mdaudioguy wrote: »

No. However, I've always had better luck at 60 or 80. (I went back and forth and ended up at 80.) Plus, bumping it up takes some of the load off your receiver/amp, "focusing" its efforts on a narrower range. Just my 2 cents. YMMV. Good luck!

It seems I get more bass when I bump it up to 60/80 from 40. If it gives my f/r/c more bass, wouldnt that put more load on my amp rather then less?

mdaudioguy

dasanii19 wrote: »

It seems I get more bass when I bump it up to 60/80 from 40. If it gives my f/r/c more bass, wouldnt that put more load on my amp rather then less?

Not sure how sending a narrower signal (higher crossover) to your speakers results in more bass. Sounds like a possible calibration issue to me. Where is that "more bass" coming from - your speakers or your sub?

Outfitter03

How is the the signal inputted to the subwoofer? Where are you controlling the crossover frequency? If you are using an LFE connection raising the crossover point will send will send more signal to the sub, frequencies below the crossover point. The setting on the sub should be all the way clockwise.

If you are using speaker wire the frequency sent to the sub will be determined by the internal crossover in the sub. That is why there are in and outs for the speakers. The outs will have the frequencies below the crossover setting on the sub filtered out and not sent to the f/r/c speakers.

If you are using both the AVR settings and the subwoofer frequency dial you may be double filtering your output.

If the AVR is setup with a higher crossover point, less bass should be getting sent to the f/r/c speakers. Since the low frequencies are not really directional, for a listening test you would need to listen with the sub turned off. With the sub turned on it would make sense that you are hearing more bass with a higher crossover. But this bass should be coming from the subwoofer. Thus the f/r/c amps would have less load.

With my setup, I have only one crossover setting for LFE and to my ears, 60 hz sounds best.;)

dasanii19

mdaudioguy wrote: »

Not sure how sending a narrower signal (higher crossover) to your speakers results in more bass. Sounds like a possible calibration issue to me. Where is that "more bass" coming from - your speakers or your sub?

More bass is coming from my f/r/c speakers when turned up to 60hz/80hz from 40hz. I control my sub through my avr and have that set to 120 LFE.

mdaudioguy

Well, I can't exactly explain that, except perhaps to say that maybe you've found your receiver's sweet spot with regard to those speakers. Let your ears be the judge. If it sounds good to you, leave it there.

geebolt

I had good results when crossing the TSi500's at 80 and LFE for the PSW505 set to 120.

Lietuvis91

I have the same setup as one of you, see my sig, and i found that setting the speakers to 80hz all around makes them sound really good with only my receiver powering them, because it takes the load of producing the lower frequencies off of them. For frequencies below 80hz, I'm employing the sub. So i set the sub to 80hz and started playing round with the phase, volume and location until it blended into the overall sound to where the sub does not draw attention to itself. I found that setting the phase to around 130 works well, but that may depend on sub location.

So i think the first step is to make sure that the speakers are doing a good job of producing the frequencies which they will handle in your particular system, whatever frequency that may be(80hz and above for me). Then, blend in the sub accordingly to fill the frequencies below...

I found that overlapping speaker and sub frequencies provided no benefit (like setting speakers at 80 and the sub at 120), in fact the overlap muddied the sound.

hope that makes sense.

over50

My hz same as Lietuvis91. I`m not an expert , Sounds good to me.