That's interesting. What bass loading does it use?
Simon
Oh, it's just a standard vented box. The port tubes are installed vertically in the bottom of the box with a 45 degree reflector at the very bottom (painted black). It's small @ 0.4 cu ft tuned to 72 Hz. They were just supposed to be satellites since I'm building a subwoofer to go with them. Crossover is 1.6 KHz to the DE250 + ME20 tweeter.
Here is a set I am currently working on. 48" tall, 10" woofer, horn tweeter. 96~97dB sensitivity 1 watt @ 1 meter. The center between the two drivers is based on the average height of typical listening seating. Note the triangle port at the bottom of the cabinet. It is in one side only. Opposite sides of course for a mirrored pair.
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A 10" woofer is difficult to mate with a tweeter. What is the woofer upper range? the tweeter's lower range? What X-over frequency & slope do you plan on?
A 10" woofer is difficult to mate with a tweeter. What is the woofer upper range? the tweeter's lower range? What X-over frequency & slope do you plan on?
Then I guess it's a good thing that I know what I'm doing and good at it. 😎
4K, 2K, 2.7K, passive 12dB
I just finished this. B&C drivers. Simple 2 way with third order passive crossover. Special thanks to AllenB for help with the crossover. Exterior wood is wavy birch. They sound good so far.
Sorry, my mistake. Crossover is second order LR with the tweeter reversed.
A 10" woofer is difficult to mate with a tweeter. What is the woofer upper range? the tweeter's lower range? What X-over frequency & slope do you plan on?
dynaco did it.
And speaker design hasn't advanced since?
are you trying to make a point here?
And speaker design hasn't advanced since?
Yes it has. I have advanced it.
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A 10" woofer is difficult to mate with a tweeter. What is the woofer upper range? the tweeter's lower range? What X-over frequency & slope do you plan on?
my point with the dynaco example is that dynaco successfully mated a 10" woofer with a tweeter and produced a speaker that usually sells today for more than it did originally. and they did this in the 1970's.
my point with the dynaco example is that dynaco successfully mated a 10" woofer with a tweeter and produced a speaker that usually sells today for more than it did originally. and they did this in the 1970's.
I believe when all was said and done, they sold 1 million of those.
Early version of a 10" woofer plus tweeter? Sounds like an Advent to me. I think they sold a few of them IIRC.
Dynaco Speaker Component Info
Ed Laurent notes that over 1,000,000 A-25s were eventually sold; Dynaco would import the finished speakers in containers of 1100 units and drop-ship them to dealers or large customers. Approximately one container per week passed through the shipping department for several years!
Ed Laurent notes that over 1,000,000 A-25s were eventually sold; Dynaco would import the finished speakers in containers of 1100 units and drop-ship them to dealers or large customers. Approximately one container per week passed through the shipping department for several years!
Early version of a 10" woofer plus tweeter? Sounds like an Advent to me. I think they sold a few of them IIRC.
Oh I think around that era there were many 10" 2 ways here's another more modern one.
SEVENTIES STEREO: JBL L26 Speakers
you can still do that....my point with the dynaco example is that dynaco successfully mated a 10" woofer with a tweeter and produced a speaker that usually sells today for more than it did originally. and they did this in the 1970's.
mate this woofer
Seas Prestige A26RE4 (H1411) 10" Paper Cone: Madisound Speaker Store
to this tweeter...
Audax TW034X0 1.3" Textile Dome Tweeter, by AAC: Madisound Speaker Store
or
SEAS Prestige 27TDFC (H1189) Textile Dome: Madisound Speaker Store
you can still do that....
mate this woofer
Seas Prestige A26RE4 (H1411) 10" Paper Cone: Madisound Speaker Store
to this tweeter...
SEAS Prestige 27TDFC (H1189) Textile Dome: Madisound Speaker Store
Not too many 10" woofers are good up to 2KHz, but this one appears to be OK. The lowest I would go with that tweeter is 2Khz also. I would not run the woofer without a crossover! no way.
Dynaco Speaker Component Info
Ed Laurent notes that over 1,000,000 A-25s were eventually sold; Dynaco would import the finished speakers in containers of 1100 units and drop-ship them to dealers or large customers. Approximately one container per week passed through the shipping department for several years!
I don't see any diffraction control, but maybe they didn't know about that back then.
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