OFFICIAL Hsu MBM-12 thread - Page 14

Originally Posted by stewdawg

Gentlemen i have a Integra 7.2 rec, what is the best way to hook up 2 MBM's and 1 true sub? I would assume to use 1 of the rec. sub outs with a y splitter for the MBM's and just straight out for the true sub, am i correct?..please help.

Originally Posted by Jrunr

Hey guys, I am down-sizing a bit and have two MBM-12's for sale. If anyone is interested, please PM me.

Originally Posted by ndskurfer

I'm posting in the MBM-12 forum as I believe this is the right audience for what I'm trying to address. I'm looking for any comments on my room situation. Room pic below:

SVS PC13U in back corner
http://i704.photobucket.com/albums/w...r/IMG_3125.jpg

Seating area
http://i704.photobucket.com/albums/w...r/IMG_3126.jpg

My issue:
I currently do not have the "punch" from the SVS, but I do have great deep bass. Using REW, my frequency response is very good, almost flat. But, I do not have the punch from gun shots, etc.

Solutions I have been thinking of:
* Placing dual MBM-12's on either side of the couch
- Placement 1: back wall next to couch about 4 feet from Ultra (this is where I sit)
- Placement 2: side wall at end of couch
- I would split the frequency at 50hz with the Ultra on the first sub (will eventually have an Audyssey XT32 Pre/Pro to EQ the Ultra/MBM & the second MBM indepentantly)
* Add Dual Epik Empires (same placement as the proposed MBM's)
* Single Epik Empire (placement 2)
* Room treatment - I'm not excited about adding panels to the walls/ceiling... Front wall is an option, but back and side walls fail WAF
* I will be replacing current Onkyo receiver (NR807) with an Audyssey XT32 pre/pro (not sure how much improvement this will provide?)

The reason on why I have been looking at the Epik Empire and MBM is because of the reviews I have read on their "punch". Would the Epik's best the MBM's for this purpose (still retaining the SVS)? I'm fine in the low low end. I would prefer not to add 2 Epiks as that is more than I want to spend right now. Would 2 MBM's = 1 Empire (please consider the Empire would be in Placement 2, not nearfield to my seat)? I'm thinking nearfield placement would help with room mode issues while adding impact?

What I have tried:
* Moving the sub - The current location is best (I didn't try along side walls - side wall along couch blocks tv view because of the height of the PC13 & and other side wall fails WAF)
* Moving couch forward and placing behind couch - not much improvement
* EQ - Currently have Onkyo NR807 with Audyssey (REW confirmed flat results)
* SVS's built-in sub EQ (prior to owning the Onkyo)
* Second sub - It isn't another Ultra, rather an Outlaw LFM-1 borrowed from my brother. I have it currently situated in "Placement 2" (gain matched with the Ultra) - not much improvement

Thoughts?

Originally Posted by skypop

I would say to add 1 MBM. If you can pull the couch off the wall just enough to place the MBM behind it, centered of your couch, if you like the sound and want a little more punch than get a second MBM and try both of them behind the couch and also one one each side of the couch. The other subs you mentioned don't have high pass filtering I don't think so it's not the same as adding a MBM

Originally Posted by stewdawg

Gentlemen i have a Integra 7.2 rec, what is the best way to hook up 2 MBM's and 1 true sub? I would assume to use 1 of the rec. sub outs with a y splitter for the MBM's and just straight out for the true sub, am i correct?..please help.

Originally Posted by Kimwyn

I was here thinking and I have come up with a question which I know has probably been asked but I can't find the answer.

Is it possible, if running dual MBMs to connect the MBMs straight to the left and right main speakers instead of running them through the receiver's crossover and just let the true subwoofers be the only ones to implement the bass management from the receiver?

Originally Posted by Kimwyn

I think another member was saying that the MBM does not have speaker line levels.

Originally Posted by cacihome

^The subsonic filter on the MBM will always rolloff freqs from about 50hz down...

Originally Posted by ralfale

Am I right to say there is already some predefined xover in mbm itself. Even if we set the knob at the amp plate to be OUT.

So my question is which is better? Set to OUT let it auto roll off at 50hz or set to IN and set knob to roll at 50hz?

Originally Posted by Kimwyn

I will be using the crossover in the AVR to then send the frequencies below 50Hz to the ULS dual drive.

Originally Posted by Kimwyn

^^^why is that? would the MBMs not be getting everything above 50Hz up until approx 150Hz?

Originally Posted by Kimwyn

i guess this question is for Bill, as he has done what i would like to do already. If the MBMs are connected directly to the speakers via speaker wire, do both the MBM and the speaker act as ONE TOTAL speaker? By this i mean, would the bass that was going to the speaker initially, now go to the MBM and they all blend as one?

What i am trying to do, is improve my mid bass response without having to crossover at 80Hz. I would like for the MBM and speaker to act as one total full range speaker and have the punch in the 60-90Hz range coming from the MBM rather than the speaker. Is this possible and is it a good thing to do?

Originally Posted by vitod

If you set the Xover on the receiver to 50hz, the receiver will only send 50hz to the subs. Meaning, the subs will handle anything from 50hz and lower. Since the Xover on the MBM is set at 50hz at it's lowest, the MBM is pretty much useless because the receiver is not sending anything over 50hz for it to work with. Now, if you set the receiver to 80hz, THEN the MBM has something to play with from 80hz-50hz.

Originally Posted by WhskyTangoFoxtrt

I believe Kimwyn wants to insert Stereo MBMs via Speaker-level inputs. The MBM-12 would not receive an LFE signal and would be a part of a bi-amped, self-powered L/R speaker.