What should I do...bass upgrade path...MBM's? Upgrade 18" marty to a 21"...? - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 1Likes
  • 1 Post By basshead81
 
Thread Tools
post #1 of 4 Old 11-13-2019, 09:24 AM - Thread Starter
Advanced Member
 
DavidinGA's Avatar
 
Join Date: Jan 2010
Location: GA
Posts: 860
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 438 Post(s)
Liked: 144
Question What should I do...bass upgrade path...MBM's? Upgrade 18" marty to a 21"...?

Currently, I have a mini Marty with a um18 that I am satisfied with overall for the low end, but I am looking to add some higher frequency mid-bass to my setup (yeah, another one of those "I want chest slam bass threads, sorry lol). I also have a ported Klipsch 12" sub I am using for a bit better response in my room and it has helped with a 50hz null I had. So I have one 18" and one 12" in a room that is roughly 2784 cubic feet (14.5ft x 24ft with 8ft ceilings). I'm not looking to necessarily increase spl, as the wife doesn't like the power levels I can get to already; just more 50hz-150hz thump.

My um18 is being run off a nx3000d (bridged) and is in the best place in my room according to rew.

Budget wise I'm looking to stay under $1k.


Option 1 - MBM's

Would you suggest 1 or 2 pa460 cabs?

My initial thought is to add 2 pa460 sealed/ported (not sure which would integrate better, or pro's/con's as a mbm here - help?) cabs sitting behind the "2 seat couch" up next to the "bar" wall. This would put them approximately 4.5ft away from the mlp, so not super nearfield, but pretty close. Or I could move the Mini Marty to the bar wall and stack the pa460's in place where the Mini Marty currently is, which would make them more nearfield.

Is there a go-to size and cutlist for pa460's for mbm use (like I found for the marty diy builds)? Is the PE 4 cu ft flatpack ideal? I'd probably build them myself to save $.

For mbm frequencies with the pa460's, what size cab is ideal - 3 cu ft? 4 cu ft?

Ported vs sealed for the mbm?

Which amp are guys using if I were to power 2 pa460's? NX1000D? NX3000D? Would I be better off selling off my NX3000D and jumping up to a NX6000D? Thoughts?


Option 2 - Upgrade Mini Marty 18" to a 21"

What are your thoughts on swapping out my um18 driver for a 21" that hits the mids better? I'd use my existing mini marty cab; is it too small for the benefits of a 21"? Would I need to upgrade my NX3000D to something stronger? I'm not sure this is a cost-effective venture vs building some mbm's though...?


The room pic & diagram is attached.

Thanks!
Attached Thumbnails
Click image for larger version

Name:	Theater room setup.jpg
Views:	10
Size:	166.4 KB
ID:	2640590   Click image for larger version

Name:	MVIMG_20190927_183219.jpg
Views:	13
Size:	5.85 MB
ID:	2640594  

--------------------------------------------------
Source: HTPC w/madVR, Video: Epson 5040, 150" 16:9, Audio: Onkyo RZ 830 avr, 5.1.4 Atmos setup. 5 speaker Energy C Series: L/R C300's, C C-C100, SR/SL C50's, 4 in-ceiling Micca R-8c. Subwoofer: MiniMarty um18 w/NX3000D.
DavidinGA is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 11-13-2019, 10:03 AM
AVS Forum Addicted Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 13,414
Mentioned: 195 Post(s)
Tagged: 0 Thread(s)
Quoted: 341 Post(s)
Liked: 9737
Take the UM-18 out and replace it with a B&C IPAL or Neo 18".
basshead81 is offline  
post #3 of 4 Old 11-13-2019, 01:30 PM - Thread Starter
Advanced Member
 
DavidinGA's Avatar
 
Join Date: Jan 2010
Location: GA
Posts: 860
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 438 Post(s)
Liked: 144
Quote:
Originally Posted by basshead81 View Post
Take the UM-18 out and replace it with a B&C IPAL or Neo 18".
Then...I'll need a better amp too though, right?

--------------------------------------------------
Source: HTPC w/madVR, Video: Epson 5040, 150" 16:9, Audio: Onkyo RZ 830 avr, 5.1.4 Atmos setup. 5 speaker Energy C Series: L/R C300's, C C-C100, SR/SL C50's, 4 in-ceiling Micca R-8c. Subwoofer: MiniMarty um18 w/NX3000D.
DavidinGA is offline  
Sponsored Links
Advertisement
 
post #4 of 4 Old 11-13-2019, 01:37 PM
AVS Forum Addicted Member
 
basshead81's Avatar
 
Join Date: Mar 2013
Location: Fort Wayne, IN
Posts: 13,414
Mentioned: 195 Post(s)
Tagged: 0 Thread(s)
Quoted: 341 Post(s)
Liked: 9737
No not necessarily...The efficiency is so high on the B&C you will gain a good 6db in the mid upper bass over your UM-18 even with the current amp.
DavidinGA likes this.
basshead81 is offline  
Sponsored Links
Advertisement
 
Reply Subwoofers, Bass, and Transducers

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off