Post by garym on Jul 23, 2013 12:37:33 GMT -5
Just finished building a pair of MTMs, thought there might be some interest in a build thread.
Used Zaph Audio's "Bargain Aluminum MTM" design, here:
www.zaphaudio.com/BAMTM.html
The system uses a pair of Dayton Audio DA175-8 7" mid-woofers and the SEAS 27TBFC/G tweeter. Had originally planned to use the SEAS ER18RNX woofers, but could not find a crossover design I trusted. Also, the Daytons were a third the price and, according to John Krutke (Zaph), nearly as good. Links for the drivers are here:
www.parts-express.com/pe/pshowdetl.cfm?&DID=7&Partnumber=295-335
www.madisoundspeakerstore.com/hard-dome-tweeter/seas-prestige-27tbfc/g-h1212-aluminum/magnesium-dome-tweeter/
Enclosure is 1 cu. ft. sealed. I built mine taller than Zaph's in order to mount them atop a pair of subs, which will put the tweeter at ear level. The extra height gave me space at the bottom for a separate compartment for the crossover. Actual speaker compartment is still 1 cu. ft.
Still haven't decided finally on the subs, but I'm leaning heavily to a pair of SVS SB12-NSDs. Would like to build my own, but components for subs with performance comparable to the SVS's are nearly the same price. Doesn't pay.
So here are the photos:
All parts cut, one box partly assembled:
Boxes assembled, baffle cutouts made, lower trim panels finished:
Baffles are 2-part, with oak trim around inner baffle. Closeup:
Driver closeups:
Crossover parts:
(See next post)
Used Zaph Audio's "Bargain Aluminum MTM" design, here:
www.zaphaudio.com/BAMTM.html
The system uses a pair of Dayton Audio DA175-8 7" mid-woofers and the SEAS 27TBFC/G tweeter. Had originally planned to use the SEAS ER18RNX woofers, but could not find a crossover design I trusted. Also, the Daytons were a third the price and, according to John Krutke (Zaph), nearly as good. Links for the drivers are here:
www.parts-express.com/pe/pshowdetl.cfm?&DID=7&Partnumber=295-335
www.madisoundspeakerstore.com/hard-dome-tweeter/seas-prestige-27tbfc/g-h1212-aluminum/magnesium-dome-tweeter/
Enclosure is 1 cu. ft. sealed. I built mine taller than Zaph's in order to mount them atop a pair of subs, which will put the tweeter at ear level. The extra height gave me space at the bottom for a separate compartment for the crossover. Actual speaker compartment is still 1 cu. ft.
Still haven't decided finally on the subs, but I'm leaning heavily to a pair of SVS SB12-NSDs. Would like to build my own, but components for subs with performance comparable to the SVS's are nearly the same price. Doesn't pay.
So here are the photos:
All parts cut, one box partly assembled:
Boxes assembled, baffle cutouts made, lower trim panels finished:
Baffles are 2-part, with oak trim around inner baffle. Closeup:
Driver closeups:
Crossover parts:
(See next post)
