where do you cross over your ht setup

I was going to skip your thread and thought you were full of hot air until I read your whole post.How cool it was...let me add,
I think what needs to be addressed is a sub which is managing LFE and the bass from five to six other channels needs to be a bear.It needs to be seven subs in one.So where do we go from there.If you are interested in getting true deep down bass you better be willing to build your own or spend huge bucks on manufactured particleboard boxes with crappy plate amps and drivers that are so taxed out at modest levels the whole system suffers.
Building your own sub is the only way to go.First pick a world class driver from Adire.Brahma,Tumult ect.Then get yourself mono amps like Adcom GFA 555mkII's (one for each driver)Then get a good parametric eq like a Behringer 1124p . Now you need a cabinet maker that can build you some two inch thick MDF cabinets to your specs.Stuff those bad boys with some pink owens corning and sit down and listen.
Bass is expensive and there are no if,ands or buts.I have tryed every combination and it all lead to DIY in the sub dept.
You will need to get a test disc or better yet a signal generator.A sound pressure meter and a big pad of scrap paper.I don't care what size your room is and who gave you the numbers but it has at least two room modes and a bunch of harmonics that go along with them.Start to sweep the freq. up and down, up and down,back and forth, until you could hear those damn humps in your sleep.One by one you will start to kill those damn humps(roommodes) until the sweeps yeild a +3db/-3db freq. response.If you can get better go for it.Oh yeh people have gotten better freq. response but that works for me.
Exertfluffer is right on and I had to add to his reply.I'm sorry if my post insults your sub but I sold manufacture subs and one or two stepped up to the plate And for that price I built two that crush them all.
It took me twenty years to find all the parts but what I learned along the way was worth it all.Good luck Goners!!

Like all things in life ,listen to all and do what makes sense.Audio mags have a wealth of info.Try not to get all caught up in the tech race for new gear.The guide to hometheater has great articles.Learning involves first putting a lock on your wallet and start reading all you can.This forum is a perfect example.Good luck gonners

Crossing over at 80hz in all ch. allows you to EQ one sub and avoid running EQ's in the mains.I have heard many people try the full range game and the only time it worked was in a room close to 20feet by thirty feet with a twelve foot ceiling.With that said,full range for two ch.and everything to the sub in HT.

I agree that the power is in the hands of the sub.Most manufactured subs are not able to reproduce the bass of six channels.Not that they all are producing bass all the time because they are not.I watched the whole movie saving private ryan and the movie is in the sub.Build it big with out board amps and custom drivers and you too will feel what they felt in the post production studio.THX standards work.They work because of the practical use of subs handling the bass.Case closed

Like I said before.ALL rooms have modes.If you don't do something about them with some type of parametric in the bass all you hear is the mode because it is 15-20db higher than the rest of the signal.If you choose to ignore this basic principle than fine, go ahead and listen to 32hz 15db higher than the rest of the movie sound track.Why are there so many blackboxes coming out to cure such problems.All i'm saying is to sum the bass to a capable sub @80hz you eleminate the problematic room mode effect by only EQing one sub.The empierical thinking that eq's are ruining your sound is as old fashion as two ch. stereo.Holding on to old idea's due to a lack of education is purely that.In the perfect world fullrange surround with a dedicated LFE sub is what would be somewhat the holy grail.This experiment has been done by better than you and I with more problems than they could count.Go back to your two ch. dinosour and 1950's EQ fear and let people learn and enjoy the knowledge they learn here.I love this forum!

no room is linear.no room is linear.period.your gear might be linear , but your room is not and i would be willing to bet dollars to dougnuts that your room modes are there and you have yet to address them or are willing to do anything about them.what we are trying to say is that if your perfect room is indeed perfect keep on keepin'on.i doubt it is because they don't exist my friend.it is easier to eq a single sub than put up with the room modes from five separate locations.do the math, it is impossible and denial is your worst enemy.i would love to go back and forth but this will be my last post and as Bruce Williams says,"I wish you well"

OK,so you do cross over but not all at 80hz.You have a small issue at 60hz.What size is your room ? What are your mains ? What is your center ? What are your surrounds ? What sub are you using ? Just wondering.

OK.I give.This has been the most fun yet.I guess my small room is a problem and or has multiple problems and all the other rooms have or had problems and the only house calls are from clients with problematic rooms.Cross over freq. is room dependent and not speaker dependent.Problem rooms are easier solved with a higher cross over freq.Thus allowing one to adjust one channel.So.....we are all right!

"Number one","set all speakers to large"."Eye,eye captain"."All speakers are set to large"."Number one,how do the nulls and peaks look"? "Captain, it's a miracle,no peaks or nulls"."Number one,set a course to use the sub only for LFE"."But Captain, no one uses full range and the sub set to LFE only"......to be continued