150hz or 80hz?

[ineedagirl69]

hi guys i have a question about my system..... i have a onlyo 705 with definitive technolygy procinema800 sytem. so anyway i ran my onkyo's audeyssey automatic setup, and they set my mains and my surround to 150hz. is that right? i thought they had to at 80hz. can anybody help me with this, thanks..........if you guys want to know the specs of my system go to definitivetechnology.com,and look up the procinima 800 system. i cant post links cause this is my first post.

[Highbar]

That's quite high in my opinion, I'm pretty sure you'll be able to localize a good amount of bass like voice and the such that should be coming from the center speaker. The crossover doesn't have to be set down at 80Hz, it can be anything that you like. I would suggest setting it around 100Hz and then playing with it up and down to see what works best for you.

I have a slight gap around 100Hz in my setup but that's because the little JBL's just can't go low enough to match the sub without localizing male voices and the such. I'd rather the slight dip in volume then the annoyance of hearing male voice from the floor next to my TV.

Overall play around and see what you like.

T

PS: I hope all of that made sense I'm watching the Phantom Menace as I type.

[ineedagirl69]

well the speakerss i got have a 4.5" woofer, and just like you i also hear voices comming from the sub with the crossover at 150hz. so should i bring them down to 80? or 100.and with the size of my woofer, should i even have it at 80hz?

[Highbar]

Your speakers have bigger woofers then mine (3.5's) and I still have mine set at 100. It's going to be up to your ear what you like the best. Like I said I would drop it to at least 100 and see if you like that and then play with it a little and see if you can tweek it anymore to your liking. If you asked the majority of the people in this forum I'm sure they would tell you that they've spent hours setting up their system just the way they like it. I know I have. Play around with some settings and see what happens.

T

[mike c]

I agree with the others, 80 or 100 ... but definitely not 150hz.

I've had 3" driver satellites run at 90hz.

[Davemcc]

Your center/sats reach down to 47/57Hz. You are OK to run the crossover at the normal 80Hz.
http://www.definitivetech.com/loudsp...inema_800.html

[biguns]

I would be very suprised if those speakers can actually produce anything useful at 47 hz from a single 4.5" woofer. A properly designed 6.5" woofer would struggle at those levels. 47 hz. @ -10dB ????

100 hz. is probably the lowest I would imagine you could get away with. The problem with a satellite setup is either you end up with hole in your bass around 100 hz., or you set the crossover where it needs to be (120-140 hz?) and bass gets too localized.

[Davemcc]

I would be very suprised if those speakers can actually produce anything useful at 47 hz from a single 4.5" woofer. A properly designed 6.5" woofer would struggle at those levels. 47 hz. @ -10dB ????

100 hz. is probably the lowest I would imagine you could get away with. The problem with a satellite setup is either you end up with hole in your bass around 100 hz., or you set the crossover where it needs to be (120-140 hz?) and bass gets too localized.

Hogwash.....

[biguns]

From my experience, that is generally the case, and I have yet to see a 4" woofer that extends below 50 hz (or 60 for that matter). The specs are useless and can be fabricated to say whatever they want them to. Just like all those 100w/channel amps...

I would love to see the frequency graph for those Def Techs that supposedly extend to 57 hz. I could be wrong, but I have never heard a driver that size that did anything useful below 100 hz without the aid of a sub.

[Davemcc]

From my experience,

Then you need more experience. This isn't about a speaker reaching below 60Hz. It's about reaching a crossover point at 80Hz. There is absolutely no basis for stating that smaller speakers can't reach below 100Hz, especially from a reputable builder. That's just plain nonsense. The 4" driver of the Era D4 has amazing bass and no doubt does every bit of it's 58Hz rating. With the 5" driver on my Era D5, they have better bass than my Dynaudio Focus 140 with it's 6.5" woofer and I have run a 60Hz crossover with no problem. In fact, the designer of these speakers recommends crossing them over lower than 80Hz.

BTW, that 6.5" in the Dynaudio is rated to 41Hz, I just prefer the way the bass in the D5 sounds.