MT121 build
Printed From: Speakerplans.com
Category: Plans
Forum Name: MT122
Forum Description: Discussion / Questions about the MT122
URL: https://forum.speakerplans.com/forum_posts.asp?TID=26340
Printed Date: 27 March 2026 at 3:28am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: MT121 build
Posted By: Powersoft
Subject: MT121 build
Date Posted: 30 April 2009 at 12:02am
|
Hi, had nothing else to do so i uploaded some pics of our MT121 cabs : ) Mid driver is P.Audio SN-12B, Comp. driver P.Audio BM-D750 II and PH-2723 horns.      Work is still in progress, updates comming soon... |
Replies:
Posted By: Heathrow_B_line
Date Posted: 30 April 2009 at 12:37am
|
i hope you will reinforce that handle ------------- Produce a killer sound. Take no prisoners. |
Posted By: tweeter box
Date Posted: 30 April 2009 at 10:57am
waow they look crisp ------------- PRECISION SOUND SYSTEM. Feeding the peoples needs for Roots Music. Strictly premium grade reggae and dub steppers from the early 70's to present day. |
Powersoft wrote:Posted By: Saul
Date Posted: 30 April 2009 at 11:03am
|
nice work, shame its MDF
|
Posted By: Tekasis
Date Posted: 30 April 2009 at 11:22am
 ------------- **Heavy Weight-Line** A home without books is like a body with no soul. |
Posted By: jethrocker
Date Posted: 30 April 2009 at 5:28pm
| Nice tidy build. Is that a tapped horn underneath? Your own design? More info please :) |
Posted By: tweeter box
Date Posted: 30 April 2009 at 5:29pm
|
just curious, but is there a 15" design for these? ------------- PRECISION SOUND SYSTEM. Feeding the peoples needs for Roots Music. Strictly premium grade reggae and dub steppers from the early 70's to present day. |
Posted By: Powersoft
Date Posted: 30 April 2009 at 6:14pm
Thanks, I'm glad you like it : ) The handles really do look like there a bit weak but there quite strong and the box itself isn't that heavy (love neodym  )jethrocker, its Beyma SB18 design (some kind of bandpass horn). |
Posted By: JMPROAUDIO
Date Posted: 09 September 2010 at 9:20pm
|
Hi, your cabs look great. I really fancy building a pair of these. However, I am either blind or nobody has posted measurements etc for building these units. First timer when it comes to building so all the help I can get will be valued. Also your subs look great also, nice and compact. Hope you have been happy with the outcome! Regards ------------- James Mounsey JM Pro Audio (.co.uk) |
Posted By: cravings
Date Posted: 09 September 2010 at 9:41pm
| hello jmproaudio. the mt121 is like.. people are adapting the MT122 plan which is on the main speakerplans.com site. just.. with one 12" section rather than 2, and making the top section however big to suit your chosen horn. |
Posted By: JMPROAUDIO
Date Posted: 09 September 2010 at 10:52pm
|
So there isn't actually a plan pacifically for that cab. Now I know that, its just a case of taking the angles and measurements from the MT122 plan. Thanks for getting back to me on that, ill stop looking for that non-existing plan now! lol Thanks again! ------------- James Mounsey JM Pro Audio (.co.uk) |
Posted By: cravings
Date Posted: 09 September 2010 at 11:29pm
| well there probably is one somewhere. there's a simplified version with straight flares that someone did.. TDA-audio maybe did that.. searching might turn that one up.. and i'm sure people have posted CAD plans they've done up of an mt121. but it is just a cut down mt122 really. |
Posted By: streetsounds
Date Posted: 10 September 2010 at 6:00am
|
Very nice work indeed. How does it sounds with with those PAudios.
------------- Bass matters... |
Posted By: JMPROAUDIO
Date Posted: 11 September 2010 at 1:51am
|
There is so much on this forum, I thought I had searched through everything, but there must be some other stuff dug away somewhere else lol. ------------- James Mounsey JM Pro Audio (.co.uk) |
Posted By: cravings
Date Posted: 11 September 2010 at 12:22pm
| the standard search only searches last 6 months. change it to "any date" and try and search with some good specific terms and hope it works.... it often doesn't work for me and frustrates me greatly.... |
Posted By: MarjanM
Date Posted: 11 September 2010 at 2:26pm
|
So how does the SB18 perform? Does it go low enough?
------------- Marjan Milosevic MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
Posted By: lukam
Date Posted: 11 September 2010 at 7:24pm
|
Hi, as cravings said there are plans for the double 12. We build this mt121 from the double plan and there was alot of guesing what angle is where. When the box was almost finished I wrote down all the angles and mesaures from the finished box but I lost the paper where I wrote them   .@Marjan We build just one SB18 for testing as we had some mdf left. We tested it with an RCF L18S800 and the output was at first quite good for that small box. There was a lot around the 60 mark but boomy above 100. The low end was there but as we tested it more the driver got over x-max soon. Not the best driver either. We had no measuring equipment back then just listened to it. Now the box is lying somewhere but if I get a better driver to test it I will measure and post it here. |