FRS 8 (promise I'll stop soon)
Cheaper here
http://cpc.farnell.com/visaton/frs-8-2004/speaker-full-range-50w-8ohm/dp/LS01667
Like I said before - using the speaker alignment I used (OB+BR, where BR cancels OB rearwave), I can get to 60Hz, which is (annoyingly) lower than it would manage in a ported box. the downside, however, is the lack of volume available, which could only be fixed if more air was to be moved. So, here's an idea to play with: get 8 of them, put 2 of them in each baffle, across then the cancelling speakers behind, include the standard XO, and you'll get more air shifted, thus more volume!
I would post a pic, but I'm halfway through painting them - decided on minimalist white.
All in all - a good buy.
Chris
Cheaper here
http://cpc.farnell.com/visaton/frs-8-2004/speaker-full-range-50w-8ohm/dp/LS01667
Like I said before - using the speaker alignment I used (OB+BR, where BR cancels OB rearwave), I can get to 60Hz, which is (annoyingly) lower than it would manage in a ported box. the downside, however, is the lack of volume available, which could only be fixed if more air was to be moved. So, here's an idea to play with: get 8 of them, put 2 of them in each baffle, across then the cancelling speakers behind, include the standard XO, and you'll get more air shifted, thus more volume!
I would post a pic, but I'm halfway through painting them - decided on minimalist white.
All in all - a good buy.
Chris
http://onecall.farnell.com/visaton/frs-8-2004/speaker-full-range-50w-8ohm/dp/LS01667
even cheaper but needs a university discount code 😉
I stand corrected on the double bass (which as a bass player I rearly should know!)
wouldn't using 4 of them result in a larger enclosure?
even cheaper but needs a university discount code 😉
I stand corrected on the double bass (which as a bass player I rearly should know!)
wouldn't using 4 of them result in a larger enclosure?
In theory either that or four enclosures of the original size. In practice hard to tell, because the Thiele/Small parameters are not in a range of any usual BR tuning, so you will end up with something too out of the ordinary to make rule-of thumb predictions.kipman725 said:
Thank you for the site upgrade. It looks and feels terrific !
The designer called this "Antipodal Dipole"
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The designer called this "Antipodal Dipole"
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Wow! you dig this out! It's been quite a while. (I mean post #189)
I remember this guy had tried many configurations including several types of W-baffles and even with horn mid-high... etc. Astonishing ethusiasm!
I remember this guy had tried many configurations including several types of W-baffles and even with horn mid-high... etc. Astonishing ethusiasm!
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Cool!
I am going to try OB with Silver Iris coax very soon. Hope to have enough of bass with 10 to 20W tube amp. Pictures will came soon!
I am going to try OB with Silver Iris coax very soon. Hope to have enough of bass with 10 to 20W tube amp. Pictures will came soon!
Sand-filled baffles for Hawthorne Iris. Extreme enough ? 😀
http://www.audiocircle.com/index.php?topic=70871.msg660700#msg660700
http://www.audiocircle.com/index.php?topic=70871.msg660700#msg660700
Hello fellas!
I'm the guy that build those. Thank you for the complements. 😀
Stoffel - Yes, they are heavy. They're right at 100 pounds (45 Kilograms) each.
Roger - Yes, you're correct as well, they are very labor intensive. But it's a labor of love.
You folks might like the three channel baffles I build for myself. They're sand filled, three layer MDF. The center channel baffle contains a SqueezeBox3 mounted just above the driver. These use the same HawthorneAudio Silver Iris 15" drivers as the "Trio" versions posted above.
I'm the guy that build those. Thank you for the complements. 😀
Stoffel - Yes, they are heavy. They're right at 100 pounds (45 Kilograms) each.
Roger - Yes, you're correct as well, they are very labor intensive. But it's a labor of love.
You folks might like the three channel baffles I build for myself. They're sand filled, three layer MDF. The center channel baffle contains a SqueezeBox3 mounted just above the driver. These use the same HawthorneAudio Silver Iris 15" drivers as the "Trio" versions posted above.
Because of the very problematic acoustic environment in my livingroom I´m stuck with a very limited choice of speakers to get any kind of imaging.
After messing around with frontloaded horns from 200Hz and up combined with various experimental LF systems without getting it right and slapped together a two way horn/OB system. I knew from previous experiments that dipole bass works fairly well in my room while horn loaded mids and highs helps to eliminate problems caused by the assymetric room.
Electrovoice SP12B in winged chipboard baffles mated with DIY multicell horns, active XO @ 900Hz 24dB/octave. The power amps are cathode follower SETs with 12B4A output tubes
After messing around with frontloaded horns from 200Hz and up combined with various experimental LF systems without getting it right and slapped together a two way horn/OB system. I knew from previous experiments that dipole bass works fairly well in my room while horn loaded mids and highs helps to eliminate problems caused by the assymetric room.
Electrovoice SP12B in winged chipboard baffles mated with DIY multicell horns, active XO @ 900Hz 24dB/octave. The power amps are cathode follower SETs with 12B4A output tubes
