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Old 15th July 2013, 02:04 AM   #2481
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Richard: Are you sure you could not have made it simpler. As long as it sounds good. Thought of a grill? Also try a BSC.
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Old 15th July 2013, 04:23 AM   #2482
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My diy fostex 206....but sorry to large picture.

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Old 15th July 2013, 04:38 AM   #2483
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Don't forget to paint them. I use a roller.
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Old 15th July 2013, 05:23 AM   #2484
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Still in the process to painting....
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Old 17th July 2013, 10:53 PM   #2485
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Take a pair of unused old Plessey full-range drivers, some lovely New Zealand pine blockboard, and some beeswax. They blow the KEF iQ7s that cost me $1800 out of the water. Total cost $200 and 2 hours work.

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Hi Richard. Are those the 8" versions? I have a pair and have thought about an OB solution How do they sound, and what are the dimensions of your panels please?

Tim
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Old 28th July 2013, 02:24 PM   #2486
IG81 is offline IG81  Canada
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A little something I built recently. Used to have the FF125K in much smaller enclosures with a tuning I had somewhat messed-up. This is 8L tuned to 69Hz. The enclosures have been built to the so-called acoustic ratio, approx 0.8:1:1.25. The driver has golden ratio offsets, both horizontally and vertically. The vent is 1"x3", about 4" long.

The 11mm BB-ply had this wildly patterned veneer (which it should not have in theory), but it turned out looking great with two coats of tung oil IMO. Small gauge speaker wire and tube amps are needed here, as between 2 and 4ohm of drive impedance is best to get good balance. It is currently driven by an RCA/Victor 6BQ5 PP amp, with some CAT5 twists for wiring.

It is not bad as pictured, not especially close to room boundaries, but better placement could be achieved for sure for reduced baffle-step. I may wind some 27awg tapped inductors to EQ the very top-end and add a bit more DCR to lower damping further.

ff125ka.jpg

ff125kb.png

ff125kc.jpg

IG
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Old 28th July 2013, 03:22 PM   #2487
TerryO is offline TerryO  United States
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Hi There IG,

That looks great. By killing off a bit of that Damping Factor it should result in a pretty nice balance and a bit better Bass.

You certainly do some very nice work!

Best Regards,
TerryO
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Old 28th July 2013, 04:04 PM   #2488
IG81 is offline IG81  Canada
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Quote:
Originally Posted by TerryO View Post
Hi There IG,

That looks great. By killing off a bit of that Damping Factor it should result in a pretty nice balance and a bit better Bass.

You certainly do some very nice work!

Best Regards,
TerryO
Thanks! While never meant to be bass monsters, (high-ish Fs, low Qt, very low Xmax), they can perform fairly well at low to medium levels. "Girls and guitars" type material is favoured of course, but it can pull-off well produced rock better than I expected. SE amplification and proximity to the back wall might be all they need.

I'm having fun doing some comparison:

DSCN2245.JPG

The tiniest of all three, the FF85WK in the small BLH, actually have the "bigger" sound, but in a boisterous kind of way. Does not suit all material, but can be quite good on certain stuff. The W4-1320SIF have the most extended low-end and sound the most even as is. The FF125K's are much more sensitive than the two others, which might be comparable. They are also much more detailed, outside of the fact that midrange and HF are more pronounced.

IG

Last edited by IG81; 28th July 2013 at 04:22 PM.
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Old 28th July 2013, 11:42 PM   #2489
toobhed is offline toobhed  United States
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That veneer is very cool! Nice job with the mirror imaging!
Mario
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Old 29th July 2013, 12:15 AM   #2490
IG81 is offline IG81  Canada
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Originally Posted by toobhed View Post
That veneer is very cool! Nice job with the mirror imaging!
Mario
Thanks! It was not an all-out effort to mirror the plywood veneer, but the cuts lined up in a way that it came close enough, so why no go for it?

IG
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