Ahhh Memorys.
I am just in the process of putting the FE207 and FT17 in an open baffle with two Alpha 15A's per side, as the Curvy Changs are too tall for the living room. I am using the U-frame not the H though to keep size down.
I have played with sveral 'full range' designs FE166 (BLH, OB), FE207 (Curvy Chang, soon OB) and prefer both with the FT17 tweeter, it just adds a bit of sparkle and brightness for the top octave.
I am just in the process of putting the FE207 and FT17 in an open baffle with two Alpha 15A's per side, as the Curvy Changs are too tall for the living room. I am using the U-frame not the H though to keep size down.
I have played with sveral 'full range' designs FE166 (BLH, OB), FE207 (Curvy Chang, soon OB) and prefer both with the FT17 tweeter, it just adds a bit of sparkle and brightness for the top octave.
hiAhhh Memorys.
I am just in the process of putting the FE207 and FT17 in ....
this is another version how to use a "super tweeter":
tractrix-bms-4524 - YouTube
>>> I don't know about 'sexy' but it's simple enough; just stuff an Eminenence Legend B102 in a suitable vented alignment, stick a ribbon... Job done...
No, not sexy but a good full ranger in a suitable box plus super tweeter works for me
>>> I am just in the process of putting the FE207 and FT17 in an open baffle with two Alpha 15A's per side, as the Curvy Changs are too tall for the living room. I am using the U-frame not the H though to keep size down.
I think you will have an excellent system but think it's interesting going open baffle to cut down on size, lol. I'd build the exact same system btw.
No, not sexy but a good full ranger in a suitable box plus super tweeter works for me
>>> I am just in the process of putting the FE207 and FT17 in an open baffle with two Alpha 15A's per side, as the Curvy Changs are too tall for the living room. I am using the U-frame not the H though to keep size down.
I think you will have an excellent system but think it's interesting going open baffle to cut down on size, lol. I'd build the exact same system btw.
don't forget to slide it back and forth till it sounds best................
right
its by far not simple at all
could be a matter of just 1-2mm
my diy ribbon is barely audible
but still makes a huge difference
I'm certain its mostly phase related
has anyone used the Hivi RT1L with a full range? I thought this might go well with a large Alpair just to add a bit of 'air'
An externally hosted image should be here but it was not working when we last tested it.
here's link to the decware dm945
DECWARE DM945 MINI SPEAKER REVIEW
I'm thinking maybe a pair in Nov.
Norman
DECWARE DM945 MINI SPEAKER REVIEW
I'm thinking maybe a pair in Nov.
Norman
here's link to the decware dm945
Interesting reuse of the shredded cardboard packing material as damping. Nice recycling. Madisound has been using that of late... i'll have to set some aside instead of using it as fire starter.
dave
Interesting reuse of the shredded cardboard packing material as damping. Nice recycling. Madisound has been using that of late... i'll have to set some aside instead of using it as fire starter.
dave
Yeah, that's a cool idea.
Any idea what drivers are used in the DM945?
lets see, the silver flute 8" from madisound (4 ohm one(, the 6" measures much flatter but you lose a good amount of cone area (214cm2 vs. 132cm2) .
The tweeter could be a hivi rt1c (5ohms).
The 8" loses hf off axis above 2khz, think i'd read that it doesn't sound good past 2khz. There is that 5db peak near 5khz to deal with, and some baffle step always helps.
Here is chad gray's project using the 8ohm silver flute.
ChadGray.info
and more stuff on the flute.
8
Then again, getting a flat measuring 8" (not poly) is a tough act to find. There are some really nice 8", but they are not cheap and/or measure scary.
The 8" dynavox looks nice (4" coil, shorting ring for $100) as does the fostex Fostex FW208N (flat measuring but not cheap at $200).
Norman
The tweeter could be a hivi rt1c (5ohms).
The 8" loses hf off axis above 2khz, think i'd read that it doesn't sound good past 2khz. There is that 5db peak near 5khz to deal with, and some baffle step always helps.
Here is chad gray's project using the 8ohm silver flute.
ChadGray.info
and more stuff on the flute.
8
Then again, getting a flat measuring 8" (not poly) is a tough act to find. There are some really nice 8", but they are not cheap and/or measure scary.
The 8" dynavox looks nice (4" coil, shorting ring for $100) as does the fostex Fostex FW208N (flat measuring but not cheap at $200).
Norman
A few people on forums have said these dynavox 6004 mid/bass units can be used sans x/o. (Obviously still need a tweet)
http://static.zoovy.com/img/alternativedvd/W105-H105-Bf7f7f7/sp/lw6004pmr_sp.jpg
http://static.zoovy.com/img/alternativedvd/W105-H105-Bf7f7f7/sp/lw6004pmr_sp.jpg
Silver Flute W20RC38 woofer & HiVi RT1C-A planar tweeter.
you forgot the Zenmaster Flash special ju-ju sauce and market-speak (OK the shredded cardboard is a clever idea, but now any DIYer using it could be accused of "plagiarism")
It's certainly a decent idea (as in the cardboard, not the plagiarism. M'lud).
Right. In fairness, the marketing BS isn't particularly extreme in this instance, although I'd say claiming the Silver Flute woofer has 'nearly flawless frequency balance out past 6kHz' is being a trifle economical with the actualité.
Right. In fairness, the marketing BS isn't particularly extreme in this instance, although I'd say claiming the Silver Flute woofer has 'nearly flawless frequency balance out past 6kHz' is being a trifle economical with the actualité.
I forgot who originally linked to them, but I think a link to "Boenicke Audio's" Model w20 se will work here. 8" with a Raal Ribbon using single cap 6db pole @ 7khz on ribbon.......
6moons audio reviews: Boenicke Audio Model W20 SE
Norman
6moons audio reviews: Boenicke Audio Model W20 SE
Norman
who knows..............
But those Raal's ain't cheap. That's probably the one for $655 each at madisound. And who knows about the 8" custom tang band driver. To me the tranny line looks way too short. I'd call it a dipole seeing as there is an up firing driver also (free baffle step with much less front wall bounce to mess up imaging). If you do a search for the loudspeaker, it mostly shows up on luxury luxury websites. That's ok, we can do very similar for much lower cost, especially if we make the boxes (I don't).
Anyone have graphs on the dynavox 8" ? It looked scary on the partsexpress site. Most 8" look scary past 1khz. I think the silver flute is going to be the easiest to work with. I've also seen people say that the silver flute is in full breakup past 1-2khz. Eventhough it measures well, it probably doesn't sound as good as a smaller mid driver in that range. But hey, a 2-way with an 8" to be run wide open with a supertweet is a tough one, especially without a whizzer.
Norman
But those Raal's ain't cheap. That's probably the one for $655 each at madisound. And who knows about the 8" custom tang band driver. To me the tranny line looks way too short. I'd call it a dipole seeing as there is an up firing driver also (free baffle step with much less front wall bounce to mess up imaging). If you do a search for the loudspeaker, it mostly shows up on luxury luxury websites. That's ok, we can do very similar for much lower cost, especially if we make the boxes (I don't).
Anyone have graphs on the dynavox 8" ? It looked scary on the partsexpress site. Most 8" look scary past 1khz. I think the silver flute is going to be the easiest to work with. I've also seen people say that the silver flute is in full breakup past 1-2khz. Eventhough it measures well, it probably doesn't sound as good as a smaller mid driver in that range. But hey, a 2-way with an 8" to be run wide open with a supertweet is a tough one, especially without a whizzer.
Norman
last night I set this up.
silver flute 8" (4 ohm)
motorola piezo 1038a (38 ohm resistor in series)
Dbx active crossover 24db LR @ 5khz (down 6db at crossover point)
Norman
An externally hosted image should be here but it was not working when we last tested it.
silver flute 8" (4 ohm)
motorola piezo 1038a (38 ohm resistor in series)
Dbx active crossover 24db LR @ 5khz (down 6db at crossover point)
Norman
Never heard the silver flute woofers but i do enjoy those cheapo piezos. I noticed the TB frame too and would rather have the white cone and whizzer that comes with it stock... and then i'd roll in that piezo... as for the expensive ribbon... i'll pass (never heard a pair and don't even want too... bc then i might want to buy them).
I bet what Norman's built sounds pretty darn good. Hey Norm, should i buy a pair of silver flutes?
I bet what Norman's built sounds pretty darn good. Hey Norm, should i buy a pair of silver flutes?
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