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View Full Version : Biumph and Fountek FR89EX/8 ohm 2.1 System


KLR
09-23-2010, 10:29 PM
Just wanted to show off my latest build. The Founteks are in Madisound's recommended 1.5 liter vented enclosure, and the Biumph is built per Wolf's plans.

Overall I'm very pleased, but I'm a rank amateur so take that for what it's worth. I have a PE mic on the way and I hope to make some measurements soon. Next up will be a pair of Dragon Foals. I want to hear how the Founteks compare to a known design

Thanks for the sub plans, Wolf! I really appreciate your contributions to the forum.

http://i424.photobucket.com/albums/pp330/305178/Subset.jpg
greywarden
09-23-2010, 11:40 PM
How are those Fountek's?? I was wanting to build some small computer speakers to use here at work (have to fit in my backpack). I was considering the cheaper shiny ones, though.
Thezeek
09-24-2010, 12:02 AM
Cool. Really like the color and mat finish.
Mark65
09-24-2010, 12:08 AM
Nice execution! I'll say that the color is...interesting;)

Mark
Wolf
09-24-2010, 01:52 AM
Looks good there, bud! Nice execution, and you're very welcome!

Is that olive-drab/military-green?

Let me know if you require any pointers on the DF, and please keep us posted with pictures!

Later,
Wolf
KLR
09-24-2010, 11:34 AM
Thanks, guys.

greywarden - I'm really pleased with the Founteks - especially considering the small box they are playing in. I measured both with my WT3 and they were spot-on the factory specs.

Wolf - Olive Drab it is. I'm fixing up a ratty old motorcycle and had a few cans laying around. :D BTW - how much stuffing do you recommend? I placed a few handfuls in enough to mostly fill the box. I didn't compress the stuffing nor loosen it up much either.

On to the Dragon Foals next week. I'm trying to decide if I should build a nice box, one like I used on this build, or maybe even put them into a piece of 6" dia PVC pipe.
johnnyrichards
09-24-2010, 12:16 PM
Very nice! Be perfectly at home in an old "rat rig".
Wolf
09-25-2010, 06:25 PM
On to the Dragon Foals next week. I'm trying to decide if I should build a nice box, one like I used on this build, or maybe even put them into a piece of 6" dia PVC pipe.

You can't change the size of the face unless you rework the design. If you lengthwise the PVC cut, you can make them taller and place the port on the front, but that would look funny.

My vote is for nice boxes.
Later,
Wolf
johnnyrichards
09-25-2010, 07:04 PM
In case someone was thinking I was insulting the finish in any way, keep in mind my father spent over twenty years in the military running a Rat Rig (http://www.rattrig.com/).

I apologize if it appeared I was making light of the olive drab finish.
Taterworks
09-25-2010, 09:30 PM
Advice: Build the Dragon Foals in an enclosure exactly the same size and shape (finishes may vary) as the original. The shape of the baffle can have a serious effect in the lower midrange, and using a differently-shaped baffle can cause some issues. The most critical dimension to maintain is the width but the height can also affect the low-mids.
KLR
09-25-2010, 10:42 PM
Okay, stick to the plans it is. :)

Johnny - No offense taken here. A guy who will paint speakers OD doesn't take himself very serious anyway...;)
KLR
09-27-2010, 10:00 PM
I measured the Founteks tonight. Keep in mind it's my first-ever attempt to measure a speaker and it was taken in my basement with my family moving around upstairs. However, I measured one of my Overnight Sensations and it was nice and flat, so maybe I'm on the right track.

http://i424.photobucket.com/albums/pp330/305178/FR89.jpg
Mayhem13
09-27-2010, 11:23 PM
I measured the Founteks tonight. Keep in mind it's my first-ever attempt to measure a speaker and it was taken in my basement with my family moving around upstairs. However, I measured one of my Overnight Sensations and it was nice and flat, so maybe I'm on the right track.

http://i424.photobucket.com/albums/pp330/305178/FR89.jpg

Is that the fountek or the OS system? Either way, it's pretty nice and from a voicing standpoint probobly really nice to listen to on axis.
KLR
09-27-2010, 11:32 PM
Is that the fountek or the OS system? Either way, it's pretty nice and from a voicing standpoint probobly really nice to listen to on axis.

This is the Fountek.
Mayhem13
09-27-2010, 11:54 PM
It would appear that this driver is small enough to not be affected by the dreaded off axis issues of FR range drivers. I'll leave the discussions of energy storage to someone else....if it sounds good then it is good!:D
andykriech
09-29-2010, 10:04 AM
Just wanted to show off my latest build. The Founteks are in Madisound's recommended 1.5 liter vented enclosure, and the Biumph is built per Wolf's plans.

Overall I'm very pleased, but I'm a rank amateur so take that for what it's worth. I have a PE mic on the way and I hope to make some measurements soon. Next up will be a pair of Dragon Foals. I want to hear how the Founteks compare to a known design

Thanks for the sub plans, Wolf! I really appreciate your contributions to the forum.

http://i424.photobucket.com/albums/pp330/305178/Subset.jpg

Are you using any XO with the Founteks? What are you using to run them with the Biumph?

Andy.
KLR
09-29-2010, 02:13 PM
Are you using any XO with the Founteks? What are you using to run them with the Biumph?

Andy.

I'm running a T-Amp into the Biumph plate amp and crossing over at about 80Hz.

No electronic components in the Founteks.