I needed a REASON to go to HD.... Oh boy morning brain freeze.
At least I didn't type raisin.......
I have moretile on the brain, have full box of that, which is very sticky.
At least I didn't type raisin.......
I have moretile on the brain, have full box of that, which is very sticky.
Gave this a quick check to see if I'm the right ball game.
The 13mm slot vents (wood pieces) are big enough, was a little worried about that.
As it sits here, the Fs is 45hz (too low) can simply trim vents down to raise it.
Generator & volt meter test:
35hz @ 4 volts
45 valley
85hz @ 7 volts
Going strong to 50hz, there is a dip around 100hz, but haven't trimmed/raised the tuning yet.
The speaker sounds pretty smooth 🙂
The 13mm slot vents (wood pieces) are big enough, was a little worried about that.
As it sits here, the Fs is 45hz (too low) can simply trim vents down to raise it.
Generator & volt meter test:
35hz @ 4 volts
45 valley
85hz @ 7 volts
Going strong to 50hz, there is a dip around 100hz, but haven't trimmed/raised the tuning yet.
The speaker sounds pretty smooth 🙂
Attachments
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Trimmed ports to about 4" wide (cut about 3/4" of each one)
Looks good:
38hz @ 6v Peak
50-51hz Valley
80hz @ 7v Peak
Looks good:
38hz @ 6v Peak
50-51hz Valley
80hz @ 7v Peak
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Thanks Dave...all ready staying up at night thinking about dots 
My drivers are a little different, they have a flat back (magnet) which I might glue cork on.
I might re-do the silicon; it looks messy now, will try a softer brush. Will slip a piece of paper in the VC for protection.
My son stopped by, I had Alan Jackson on; he was amazed at the sound.
[all my good CDs got stolen at work, so using sons collection. The Alan Jackson CDs are very well done recordings (btw, he has 50 top hits). I never would have thought light country would sound good on small, single cone speakers]
They do sound very nice, I didn't hear the "plastic" sound. They are dipping down pretty low; sound like a 7" in a BR box. However I want to raise the bass level just a bit, just for the wow factor. I'll try a BSC. Although, the bass really dips down (sub woofer territory) 20' away....wavelength I guess😕
All said, they didn't quite have the same depth and imaging as the fostex with the mods, not bad though, might make some more.
btw, ordered the expensive wool $50 bucks, its not fluffy enough; 7oz just filled 1/2 the box, so I tuned them upside down (gravity). Back to the craft store, might have to open a few bags; they have racks of different textures.
My drivers are a little different, they have a flat back (magnet) which I might glue cork on.
I might re-do the silicon; it looks messy now, will try a softer brush. Will slip a piece of paper in the VC for protection.
My son stopped by, I had Alan Jackson on; he was amazed at the sound.
[all my good CDs got stolen at work, so using sons collection. The Alan Jackson CDs are very well done recordings (btw, he has 50 top hits). I never would have thought light country would sound good on small, single cone speakers]
They do sound very nice, I didn't hear the "plastic" sound. They are dipping down pretty low; sound like a 7" in a BR box. However I want to raise the bass level just a bit, just for the wow factor. I'll try a BSC. Although, the bass really dips down (sub woofer territory) 20' away....wavelength I guess😕
All said, they didn't quite have the same depth and imaging as the fostex with the mods, not bad though, might make some more.
btw, ordered the expensive wool $50 bucks, its not fluffy enough; 7oz just filled 1/2 the box, so I tuned them upside down (gravity). Back to the craft store, might have to open a few bags; they have racks of different textures.
All of my music is stored on two different computers and three different hard drivers. The CD's are in boxes. I have complete lists and receipts for my downloads. Security: Two or more copies that cannot be subject to a common disaster.
Bob
I guess you are just spooling .wav files off the hard-drive? What are you using for the pre-amp?
I know what I'd like to try/find; a good preamp with digital input. The Koerica player I'm using has a RCA digital out, never used it.
(when my buddy and I looked for a good player and found the Koerica;we went to several HiFi shops, it did stand out as a better sounding player)
I know what I'd like to try/find; a good preamp with digital input. The Koerica player I'm using has a RCA digital out, never used it.
(when my buddy and I looked for a good player and found the Koerica;we went to several HiFi shops, it did stand out as a better sounding player)
You mean Kyocera, right? 😀 They made some high-quality components in the 80s. That deck should make a great transport. Now you have to decide on a DAC... And attenuation... Slippery slope again, Odougbo.
Another great build, sir. Thanks for sharing!
Another great build, sir. Thanks for sharing!
Its a fun little speaker build; sounds like something much much bigger (only 16" high).
Would need a table saw; bench top saw would be fine.
Yes Kyocera.
*It's dead on 16" tall, which was a fluke, since I worked inside out. The base plate aslo has even numbers: 9" - 11" etc.
Would need a table saw; bench top saw would be fine.
Yes Kyocera.
*It's dead on 16" tall, which was a fluke, since I worked inside out. The base plate aslo has even numbers: 9" - 11" etc.
Any number can be "even" if you use the right units -- even if you have to invent your own :^)
dave
update
Now that the speaker has some hours on it , it sounds different; the bass is taking over. It is really strong, but natural sounding. I think the wide flare ports enhance the bass (a lot), or maybe the silicon (which I could remove).
[it does not need a BSC]
The imaging is nice, a very nice sound stage, my only complaint is it could use a little more sparkle on the high end.
Maybe a tweeter, rolled off very high, not sure the woofer would need much help (rolled off), maybe nothing at all.
I have a pair of DIY set-on-top tweeters, they look better than they sound ($10 bucks). I'll give them a try with a really small cap.
Now that the speaker has some hours on it , it sounds different; the bass is taking over. It is really strong, but natural sounding. I think the wide flare ports enhance the bass (a lot), or maybe the silicon (which I could remove).
[it does not need a BSC]
The imaging is nice, a very nice sound stage, my only complaint is it could use a little more sparkle on the high end.
Maybe a tweeter, rolled off very high, not sure the woofer would need much help (rolled off), maybe nothing at all.
I have a pair of DIY set-on-top tweeters, they look better than they sound ($10 bucks). I'll give them a try with a really small cap.
Attachments
I listened to those TB for some time and got so used to it("lack of treble") that when I connencted my Corals it was too much treble for me 😀
maybe the coating affects a little bit the treble?
maybe the coating affects a little bit the treble?
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They sound nice; the high end is more of a issue with the Sangean HD Tuner. It is not that noticeable when playing a CD.
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