Originally Posted by stick70
Long time reader of your posts. Just read through your system and need your opinion on changes I'm about to make. FYI, I'm using a Casablanca III. Currently I'm running B&W 802D's (L&R) and have them crossed at 80hz Slope 24 using Butterworth. I've used this setting since day one and have the itch to tweak it. Since my 802's are a full range speaker (34hz) I was thinking of switching the settings in the Casablanca to Full Range Butterworth 63/18(high and low). Probably will do the same with my center channel which is a B&W HTM2d. Range goes down to 41hz. My subs are Paradigm Servo 15's. They go down to 17 ish with a slope of 18. I also have a SMS chained to both subs. If I set the crossovers in the Casablanca to 63/18 for the L/R/C and set my sides and surrounds to 80/18 what setting should I use in the SMS? Will having different cross over points create a problem between the Casablanca and SMS? The sides and surrounds are Triad's. The room is treated for first reflections. What setting are you using in your SMS?
Any thoughts would be much appreciated.
Each room and components are different as is the listener. What I do may not work for you. My three Aerial subs are toward front center of room and are pretty flat there. I use SMS-1 only to boost bass 6 dB at 20 Hz and 2 dB at 32 Hz, otherwise flat. I run all 5.1 speakers Phase Perfect crossover 40 Hz 6 dB . With SMS-1 using 80 Hz and steeper slope measures a bit better but subjectively doesn't sound near as good.
So you need to experiment. Optimizing room build, acoustic treatments, speaker position, sub position first makes it easier to use lower crossover and more musical 6 dB slope with full range speakers, like I do.
SteveRe: SMS EQ
Originally Posted by stick70Thanks for your response that does help me. I'm confused on one part of your response though, you said your using the SMS to boost bass @ 20hz and 32hz are those at the contour frequency area or are you using using two seperate inputs or is that using the EQ section? Are your setting the same for HT and Music? I've integrated my two channel into the Casablanca using the digi out card into the Gen 8 so I'm using different setting for each input. I know you use you HT for music as well. Thanks again.
My SMS-1 is connected via an AES/EBU cable from my Theta CB3's Six Shooter. Another AES/EBU cable connects the SMS-1 to my first Aerial SW12 subwoofer, which is chained to the second sub, which is chained to the third sub.
The AES/EBU input is the one which allows you to use the SMS-1's EQ features.
My SMS-1 is otherwise setup at factory settings.
#6 EQ Defeat is flat. #5 Custom has the 6 dB boost at 20 Hz and 2 dB boost at 32 Hz. #2 Movies has I believe a 5 dB boost at 50 Hz or something like that.
I have my subwoofer where they are reasonably flat toward the front center of my room, and I set my sub levels to match my main speaker levels.
I may use SMS-1 setting #2 Movies for movies for a bit of bass boost. I may use the SMS-1 setting for rock or jazz or just use #5 Custom depending how I like it.