Seos 12 8" Faitalpro MTM 12" Subwoofer towers

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Looks mighty sweet! Did you ever consider having the woofer in its own separate module? Makes it easier to move, I guess. Also improves isolation of TM from woofer vibrations, if you can use some kind of decoupling material between the two enclosures..

Sent from my GT-I9505 using Tapatalk
 
Looks mighty sweet! Did you ever consider having the woofer in its own separate module? Makes it easier to move, I guess. Also improves isolation of TM from woofer vibrations, if you can use some kind of decoupling material between the two enclosures..

Sent from my GT-I9505 using Tapatalk



I did, at one point I planned on making the sub separate, but the more I got into planning the more I wanted this to be a mightily present, classic set of floor standing loudspeakers. I'm really excited at how they're turning out.

For me seeing the speakers is a huge part of the listening experience, not sure how many others can relate to that, but seeing the sound come from a particular type of speaker and configuration is very satisfying.

The enclosure is extremely well braced. If I want to do more with bass I'll build a PA460 based superset subwoofer that I can place elsewhere in the room but I don't anticipate that being needed as these Mag 12's model really well and come very well rated.

Thanks!
 
Thanks glad you're enjoying it!

For all the circles I use a Jasper circle jig, I have the 7" and 18" version. Like this

9790b886540721d6c179c3216c1a4eb3.jpg


For the larger size roundovers Magnate makes awesome router bits available on Amazon.

HTH!

Thank you!

Do you cut circular holes with a 90 degree cut and then apply the round over? If so, how do you do that? The Jansen needs a center pun in the middle of the circle that us now air...
 
Got some more work done today after I snuck out to the garage =)

2 hours of orbital sanding and wood filler and these things are as smooth as a baby's butt, final pass with 220 grit. Then lots of vacuuming and cleaning.

dd397742ee9dcdc2ec3e0241235289e3.jpg


2607bb5576f67e4963b968af197f0809.jpg


Back in the garage waiting for some more work. Next step will be a recess in the back for binding posts, some "flying buttress" style feet and then keep for stain.

I'm mostly decided in red stain but still not 100%

8c27e39b1330df43a0226b985c64f7e1.jpg



Sent from my iPhone using Tapatalk
 
Little more progress today!

Started on the flying buttress feet, made from 3/4"X1.5" solid maple.

I cut 4 12" pieces and cut each end at 60 degrees

78998660fb8fae03aab022d0f4dd637c.jpg


Then I put a 1/4" roundover on each side

7f33e5903199da5ff5e2b2da319c5603.jpg


I then cut them to 7.5" long and sanded them smooth with 220. Then I put two 1/4" dowels in each one.

bd997a8939505469f352a926e259f018.jpg


Then using some center punch reference tools, I made transfer marks onto the enclosure

3b1a14c9900910946400eb91eee74d73.jpg


Each foot was fixtured in place using this jig I made

e5ede59569b4f0e6e45a2ca7c8f7676a.jpg


Feet in place, I will stain them a different color then glue them on before poly goes on.

0c5751411da1b1f0802e469ae9a657b2.jpg


Also put a 1/2" recessed for the binding posts, there will be 3 pair each side.

Using a router template I made I positioned this on the cabinet then routered the area out

15a00f838ee6f1b7e210dd9a6bf56af0.jpg


3572487886a05b581b4df979facffaca.jpg


On the backside I added another layer for the binding posts to pass through and give sufficient thickness

4f2c022cc86e76caed37e413a21c917f.jpg


Here is where they stand, I'll do a little touch up sanding and then she's ready for stain! Getting excited to hear these beasts!

c59e20be24cd5d4d1110ceb100b00016.jpg



Sent from my iPhone using Tapatalk
 
Coming along, should be making sound tomorrow night or Saturday =)

Got binding posts installed and wiring going

caa8d14b2a052dc5826541057f3e222d.jpg


All enclosure walls lined with egg crate foam

b1364ac73cc80945a25585e21ebe4833.jpg


Additional stuffing
9fea83349542e1b859ce7bb3c089bef3.jpg


6d0f80c86d80293c0ab3884d53919dca.jpg


Got some 8" mids and Seos10 installed

892ae45750fd708fa9b685d0fd1d1724.jpg


1adee67e1b9afe5830cbc74968ba6b63.jpg


Rubber feet installed

d4251d9a379a39a023f33f8526f96bf3.jpg


Completed pics coming soon!



Sent from my iPhone using Tapatalk
 
Did some final buttoning up last night!

Faitalpro 8" midrange

f40aca7fc35a843e024e9a6ce9379f5c.jpg


Internal binding post wiring, M6x1 nylock nuts with nordlock serrated washers

14877dfa52c1f1b83d37c322893f405c.jpg


More damping

9f79d2960db2e53bb0e15e024992ce5b.jpg


b3dc3af23efeaac2168ac1dc4b801135.jpg


4ee5fcfdffd4757f21d5e29cc876e39e.jpg


Bolting in the drivers

2076ee76a21f06aedc83e9af5060ae77.jpg


They are done and in my audio room, more pictures to come, I've been tuning them and they sound incredible!




Sent from my iPhone using Tapatalk
 
Seos 12 8" Faitalpro MTM 12" Subwoofer towers

Ok had a chance to take some nice photos today and spend some time with these.

There are few things in this world that match the satisfying feeling of finishing a set of speakers that you've been envisioning and thinking about and building, then staring at them and listening to them.

I am on cloud 9 right now just looking at, listening to and tuning these things.

I will write a listening impression after this and post up tomorrow, but I have never built or listened to a pair of speakers with the effortless speed, efficiency, power, attack and detail of these things, just wow!

ebe045da71967e7ec7e2ff85c722ea20.jpg


ecd665a426bf90e0b49d31f1613c4fd1.jpg


4338787b1c12fad711fd7d07ee9bc6f6.jpg


ad2fe14a2aad295ae45f3917563fa491.jpg


2a3202fe82627999b22970ee0c470b20.jpg


abdeca930100008f43ea2269b039e7d5.jpg


789538c0e4b53466db1e64ad2edc4578.jpg


9a0c4232d5571f4e4559c9aeb6ba7ec4.jpg


881bdb1fb5ee15ac805b686dcc99d0c4.jpg


ca09e15845da1dc12c230db26af0f68f.jpg


4e96dda0f5b01563e9595f8cdc8c04e8.jpg


48695b50a5be1e31308c07675917b353.jpg


And after about an hour of tweaking this is where I stand, measured in room from the listening position.

ee3c5e5a5de938ca205e69b261947f8e.jpg


Cross over points sit here currently:

Horn - 1500 24db
Mids - 2000 24db, 80 24db
Subwoofer - 100 12db, 20 48db

The asymmetrical points between the mids and sub helped address some FR issues w/o any additional EQ which was nice.

Also have a 5ms delay on the left subwoofer which helped with some room issues tremendously. Mids needed the most work to smooth things out especially in the 100-400hz range where there is a lot of room stuff going on.

More to come, hope you guys like them, please let me know your thoughts!




Sent from my iPhone using Tapatalk
 
Last edited:
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.