Originally Posted by bogaboga
this the first time i heard this, are sure its not a placebo?
Originally Posted by Bandyka
Pretty sure it is
The reason why xover is deemed best at 80hz is because if it's lower we start playing with modal issues, THX should know what they are talking about after decades of research and experience IMO
"thunder rolls around the room" what he must be hearing is localized bass from the surrounds hence the expression "rolls around", when setup correctly it should just be thunder and rumble unable to be put a finger on it where it comes from.
... but if that's what he likes... however this is a typical example of a room needing a lot of work to be properly setup and then comes the light-bulb moment when heard for the first time properly done , been there done it.
Yeah, as in my original post, it's a personal preference thing IMO, and that's IF the owner's Surrounds are even capable of playing content that low. Few are, most go with smaller, cheaper speakers for Surrounds, and there's nothing wrong with that. In fact, it's common practice. However, I've also read elsewhere in these Forums of people who use full Towers as Surrounds and swear by it! *shrug*
In my particular system and space, which only applies to me because everyone's setup is different.......yes, thunder is absolutely discernible and swirls around the listener. I'm so satisfied with that aspect I feel no need to experiment further LOL! Well, except more/cleaner power to my speakers eventually......
Originally Posted by Joshua Chmiel
Kieth's room is not optimal. It is the living room of his house with a big window to the right open to the dinning and patio doors to the left. Whole area is open to the kitchen and hallways leading to bedrooms. On top of the the ceiling is sloped. Despite all that his system sounds good and those PB16 ultras helped convince me I needed more sub. I thought I was good with a single PSA XS-30se, coming from a dinky Yamaha sub, before I felt the tactile response his system has.
LOL "not optimal" is an understatement! My space is pretty horrible, acoustically. Still, I'd estimate the weakest point is my Prime Elevations which I use as Atmos, despite having a dedicated power amp for the 4 of them. Optimally I'd want 1 or 2 more amps for the 7 Main channels, with nothing driven direct from my AVR; maybe someday! That 72Hz null you measured does niggle at me, and due to the overall massive size of my space I'll never get the full "chest slam" effect because pressurizing the whole area would be nigh impossible. The saving grace is my carpeted wood subfloor over a small crawlspace....so I DO at least get plenty of floor shake. I somewhat suspect the crawlspace may actually serve to reverberate and amplify certain frequencies, akin to the effect I get on my car by having eliminated the exhaust after the mufflers and installing simple turn-downs, so the sound bounces between the road and the underbody of the car; making my 5L smallblock Mustang sound like a big block! My unofficial measurement of how good ULF in a movie is includes seeing how many disc cases get knocked off my coffee table (have 6 or so stacks about 10-12 high) and whether items get knocked off my microwave in my kitchen (2 "rooms" away but still in the combined open space).