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mid bass

post #1 of 13
Thread Starter 
The more I listen to my dual opposed set up the more impressed I am with it for movies.. But I listen to music more than I watch movies. So my next project I am thinking is to pour more midbass into the sound.

I like a good kick drum, since I listen to mostly rock/metal..

So what's out there? looking for driver suggestions, and enclosure suggestions..

Thanks guys..
post #2 of 13
Your MFWs should do midbass. Or do you mean make mains with more midbass. What are your mains and XO point. Do you have room measurements?
post #3 of 13
What kind of mains you run? Upgrading the mains might be the way to glory.
post #4 of 13
Minimum entry requirement for excellent MB is a HE 12 or 15" driver. Assuming of course the rest of the system is up to it.
post #5 of 13
well, there are several ways to get good mid bass.

the first thing is to realize that mid bass runs from about 50hz and extends up to around 350hz or so, but a minimum for fun is around 150hz, so requires good mains, not just a good sub.

second, look to high sensitivity drives, with large coils, and low qes. for icing, look for low inductance. if you want 15's, some nice contenders are ae speakers td15m, jbl 2226, 18 sounds 15lw1401, b&c 15tbx100.

if you want 12's, some contenders are ae speakers td12m, jbl 2206, 18sound 12nmb420, b&c 12tbx100, and even beyma 12lx60 (pretty similar to jbl 2206).

of course there are other possibilities...but if you study these drives, you will be on your way to what you want...imho.

if you want a passive solution, check out wayne parham's 4pi's.

also, watch out what is going in your room. reflections, cancellations, modes...the resonances can beat the snot out of tight mid bass.
post #6 of 13
Thread Starter 
I have my mfws running off of my sub out from my onkyo 876, it is sending 120 Hz and below to them.

My mains are paradigm monitor elevens v6..

looking for an active solution that will take over from the 120 where the mfws stop up to around 500 or so..
post #7 of 13
Quote:
Originally Posted by LTD02 View Post
well, there are several ways to get good mid bass.

the first thing is to realize that mid bass runs from about 50hz and extends up to around 350hz or so, but a minimum for fun is around 150hz, so requires good mains, not just a good sub.


Interesting. If mid bass is located from 50 Hz up to 350Hz or so, in what frequency range is the upper bass and midrange located in the your frequency scheme?




LL
post #8 of 13
Quote:
Originally Posted by Audiophile34 View Post

The more I listen to my dual opposed set up the more impressed I am with it for movies.. But I listen to music more than I watch movies. So my next project I am thinking is to pour more midbass into the sound.

I like a good kick drum, since I listen to mostly rock/metal..

So what's out there? looking for driver suggestions, and enclosure suggestions..

Thanks guys..

The typical range for punch is 60hz+, your system is fully capable of reproducing this range fully without problem but in my opinion what you are asking for is related to the ability of the driver to follow the profile of a waveform propperly. This is related to qts, moving mass, motor strength and modal control, but mostly IM distortion that occurs when driving low frequencies- as the various orders of distortion further up the freq range have much more effect when baised on a 20hz tone and played through the same driver.
In this case, Your 2nd, 3rd and 4th harmonics are going to be within 80hz and will muddy the punch a bit (depending on the driver)
In my opinion , you need to look at a driver such as the ae td12m JBL 2206 or emminence kappa equivalent to be crossed over at somthing like 60hz to the subs.
If you went to audiophile drivers - Linkwitz measured many and suggested the 10" seas excel driver if I remember correctly.
post #9 of 13
120hz eh.... Do you have room measurements. It would be interesting to see if you have a null in the midbass, or if your subs need better phase alignment with your mains.

How did you come up with 120hz?
post #10 of 13
Thread Starter 
120 Hz is the highest crossover point (for the subwoofer) that my AVR allows...


It may be the room. As far as measurements go, can someone please point me to an article on how to correctly set up for using REW and the mini dsp? I should have the finances (for fun) after buying all the school clothes and supplies last week..

I understand I need a radio shack meter and some cabling... oh and an external soundcard...
so if someone could point me in the direction of an informative article on how to do all of this...

Thanks guys..
post #11 of 13
Not necessarily. Do you have an audessey mic? Or MCACC, or YPAO, etc. Just get REW or HolmImpulse and plug the mic into your computer. I don't need an external soundcard. Also search lilmike's mic. Measurements shouldn't cost more than a couple bucks

Just for kicks, try 100 and 80hz XO. If there's a null at the XO point, it may fill in with a different XO.
post #12 of 13
Quote:
Originally Posted by Audiophile34 View Post

120 Hz is the highest crossover point (for the subwoofer) that my AVR allows...

It may be the room. As far as measurements go, can someone please point me to an article on how to correctly set up for using REW and the mini dsp? I should have the finances (for fun) after buying all the school clothes and supplies last week..

I understand I need a radio shack meter and some cabling... oh and an external soundcard...
so if someone could point me in the direction of an informative article on how to do all of this...

Thanks guys..

Hometheatershack in the downloads section has guides, downloadable calibration tables and You also download REW there as well. The Behringer uca202 is the cheapest around $30 to your door. Radio shack for the cables and spl meter. Need one RCA cable from listening position to receiver and a 1 female to 2 male adapter. You will also need 1 shorter RCA cable to connect the spl meter to the soundcard.

http://www.hometheatershack.com/forums/rew-forum/
post #13 of 13
I just got my setup all completed in my new house and I'm in the same boat as you needing a MBM. I took measurements today with REW and I'm all over the place from 50-120 in my gf's seat and my seat is bad from 80-120. I'm thinking it has more to do with my mains being small satellite speakers with only two 5" mids each. I'm still undecided on building an MBM or just build a set of sealed statements or ported ministatements.
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