Need an MTM design to build

[XtremeRevolution]

I just built a set of MTM speakers based on the design on techtalk,partsexpress.com based on the Dayton ND105 midbass and Dayton ND20FA tweeter.

Words cannot describe how excellent these sound, to the point where I'm selling off my entire home theater speaker system to build my own.

However, I couldn't help but wondering if there were better speakers out there.

So my search has now brought me to build another set of MTMs on a proven design. I want a design with an excellent crossover. Something that will blow me away with detail, accuracy, and brilliance. Something that sounds large, full, and rich.

My budget is around $200 for all speaker parts not including the building materials. That includes the drivers, tweeters, binding posts, crossover parts, and PSP flared ports. I want something that sounds excellent. The ND105 based floorstanding towers were nothing short of amazing. They put my Polk RM40T's to shame in a matter of seconds. I have never heard a set of speakers that sounded better in my life. Such rich, full, detailed sound. They were a gift for my father in law, and while we were listening to them, he said he could hear things in the music that he had never heard before.

So, are there any proven designs anyone can recommend? I would also be willing to consider a TM design if a set of speakers exist that would provide the same output and rich clarity. I'm basically looking for two front floorstanding speakers to start. I will be using a 15" powered sub so low end response will not be very important.

[XtremeRevolution]

Just found these:

Peerless 831735 6-1/2" HDS Driver

anyone done anything with these?

[warriorcookie]

I haven't, but check out zaph audio. His designs sound excellent.

He recently posted the za5, a design built on his own mids. Kits are even sold through madisound. TM, MTM, MMTMM, inwall, etc...

[XtremeRevolution]

Originally Posted by warriorcookie

I haven't, but check out zaph audio. His designs sound excellent.

He recently posted the za5, a design built on his own mids. Kits are even sold through madisound. TM, MTM, MMTMM, inwall, etc...

The Za5 kit looks pretty good. I'll consider it.

The previously mentioned Peerless driver intrigues me at this point due to its low cost being sold on a buyout deal. I'd be ecstatic if I found a design that someone had already built for these drivers.

[blue934]

i would second Zaph's za5 's as a great option. also check Pete Schumacher's Schumakubin design. it uses 4 Da175 woofers in an mtmww config. basically a 2.5 way mtm. excellent low cost, low distortion driver. multiples of the woofer make up for the low xmas. it is available with a seas or dayton tweeter. tight detailed ecellent sound for low dollar.

would your mtm's be the nano's from chris reomer by the way? i hope so because i have the parts to assemble a set for a friend.

david

[XtremeRevolution]

Originally Posted by blue934

i would second Zaph's za5 's as a great option. also check Pete Schumacher's Schumakubin design. it uses 4 Da175 woofers in an mtmww config. basically a 2.5 way mtm. excellent low cost, low distortion driver. multiples of the woofer make up for the low xmas. it is available with a seas or dayton tweeter. tight detailed ecellent sound for low dollar.

would your mtm's be the nano's from chris reomer by the way? i hope so because i have the parts to assemble a set for a friend.

david

Yes, my mtms were indeed the ntn nanos by chris reomer. They are absolutely amazing. I don't have words to describe how good they sound.

I will definitely check out the mtmmm you mentioned and its very likely I will go with either that or zaphs design. Is it really that bad to place an mmtmm close to a wall?

Sent from my HTC Awesome using Tapatalk

[blue934]

speaker placement of any speaker design is contingent on the amount of BSC (baffle step compensation) used in the design. as a general rule of thumb <3 db can be placed closer to back walls and 4-6 db should be placed further out in the room, up to 2-3 ft for full BSC (measurements taken from the front baffle to the back wall). don't remember amount of BSC in Pete's design offhand but you can ask him those details. i think Zaph gave a couple crossover options for this reason, just don't use the inwall version unless they are in the wall. they will sound thin if place out in the room.
i find any speaker design to sound better if 2 or more feet from side walls. close proximity to a side wall gives strong reflections, affecting the design in adverse ways.

glad to hear you liked the Nano's.

david

[XtremeRevolution]

Ah, that makes sense. I shouldn't have a problem then as I'm 4 feet from the side walls if not more. Might even get go with zaphs mmtmm in that case.

[warriorcookie]

Check out this page for more on speaker placement. I've had good luck using the calculator.

Cardas Audio


I will be building the zaph mmtmm this summer. If you decide to build, I will certainly be watching...

[blue934]

Originally Posted by XtremeRevolution

Ah, that makes sense. I shouldn't have a problem then as I'm 4 feet from the side walls if not more. Might even get go with zaphs mmtmm in that case.

those do look most excellent. i might try those later this year myself.

david