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Forum: AudioKinesis
 Topic: Thunderchild bass guitar cabinet
Thunderchild bass guitar cabinet [message #64183] Mon, 04 October 2010 17:54
Duke  is currently offline Duke
Messages: 297
Registered: May 2009
Grand Master
I've been busy developing a couple of bass guitar cabs, and my first one is a 34-pound 1x12 called "Thunderchild", unusual in that it has a PA-style horn. Of course so do several of my home audio speakers, but I don't know of any other bass cabs that do. Here are a couple of YouTube video clips, whose sound quality is quite good for YouTube:

http://www.youtube.com/Kjungbass#p/a/u/0/WAsfEmsTX4M

http://www.youtube.com/Kjungbass#p/a/u/0/0WOhxSFoiB4

Kinda fun to steal back into prosound using design techiniques that Wayne Parham has been using in home audio for years... and which have their origins prosound!

Duke
 Topic: Good show at LSAF 2010!
Good show at LSAF 2010! [message #62773] Tue, 18 May 2010 10:43
Wayne Parham  is currently offline Wayne Parham
Messages: 17141
Registered: May 2009
Illuminati (33rd Degree)

Your speakers were awesome! very impressive! I am sorry I couldn't spend more time with you, go to dinner like we usually do. Little Eddie just can't take being couped up all day, so we try to get out for dinner and go have some fun to get him out of the room. May have to get a sitter next year.

But your speakers were wonderful. I've seen good reports on them already. I expect when the ezines write show coverage reports, you'll have some wonderful press!

 Topic: New loudspeaker type will debut at Rocky Mountain Audio Fest
New loudspeaker type will debut at Rocky Mountain Audio Fest [message #53730] Mon, 08 October 2007 03:07
Duke  is currently offline Duke
Messages: 297
Registered: May 2009
Grand Master
At the Rocky Mountain Audio Fest October 12-14 I will be displaying what I believe is the first commercial loudspeaker of its type.

The speaker will be a controlled-pattern offset bipole. I will be using the same 90-degree-pattern waveguide and TAD woofer as in the Jazz Modules, only I'll have a second, identical rear-firing array. The rear-firing array will be offset vertically so that it's about a foot closer to the floor, which will stagger as much as is practical the location of my low frequency sources with respect to room boundaries and the listening position.

The system is intended to be set up a good 5 to 7 feet out from the wall behind it. This way, the reflected energy from the rear-firing array will arrive a good 10 milliseconds or more behind the direct sound. Reflections arriving earlier than 10 milliseconds are generally detrimental, but reflections arriving later than 10-15 milliseconds are beneficial. So with proper positioning my controlled-pattern offset bipoles will give a significant increase in reverberant field energy without a corresponding penalty in additional early reflections.

These new speakers are tentatively named the Dream Makers. I have wanted to build these speakers since about 1989, so in a way for me they're a dream that's been a long time in the making.

Unfortunately everything about them is twice as expensive as the Jazz Modules with the exception of the capacitors in the crossover. Because I'm wiring the drivers in series for an OTL-friendly 16-ohm load, I get to halve my capacitor values.

I'll try to get back here to answer questions if anybody has any, but right now I'm still sort of scrambling to get ready for the show.

Duke

 Topic: I knew I should have given you the 20 bucks
I knew I should have given you the 20 bucks [message #53729] Sun, 01 July 2007 05:27
Bill Epstein  is currently offline Bill Epstein
Messages: 1090
Registered: May 2009
Location: Smoky Mts. USA
Illuminati (3rd Degree)
I expect to collect a copy of 'that' CD at RMAF.

Al Steifel was here last Sunday and I managed to steal a burn of his Dead Can Dance "Spirit Chaser". Almost as good as the one you had with weirdly cool percussion and other noisemakers.



Forum: Pi Speakers
 Topic: Happy PI day
Happy PI day [message #87455] Wed, 14 March 2018 12:46
steve f  is currently offline steve f
Messages: 219
Registered: May 2009
Master
Happy PI day all. Thanks Wayne for all of the wonderful speakers you helped us build.

steve
 Topic: 12pi Subwoofers (x2) for sale $700 each ($1,400 pair)
12pi Subwoofers (x2) for sale $700 each ($1,400 pair) [message #86075] Wed, 06 September 2017 20:46
Josh Billings  is currently offline Josh Billings
Messages: 7
Registered: May 2009
Esquire
These are fantastic subwoofers, but I have no need for a mobile setup anymore. Would love to sell to somebody that appreciates the work Wayne put into designing these. They are large, but they get super loud with very little wattage.

These are fantastic cabinets in pairs. Plans are freely available on this site as well.

Price breakdown:
Drivers - $700
Cooling plugs (x4) - $140
Cooling plates (x4) - $260

That's $1,100 + tax & shipping right there. The wood + hardware + time + effort is worth MUCH more than $300 Smile

Hit me up, looking to sell ASAP.

Josh Billings
 Topic: 3PI in NL & horn coloration
3PI in NL & horn coloration [message #83193] Wed, 03 August 2016 11:59
Fedde  is currently offline Fedde
Messages: 2
Registered: August 2016
Location: Netherlands
Esquire
Hi folks,

I wonder if anybody built a 3PI (or 4PI) speaker in the Netherlands? It looks like a very nice speaker project. I consider building a pair, but would prefer to hear it before ordering.

In a youtube clip of 4PI, I have the feeling that I hear a bit of horn coloration. Of course, this not the best way to audition speakers and any coloration of the microphone and my current speakers is added on top. This was the clip I found (it uses original H290 horn with DE250 and JBL 2226H):
https://www.youtube.com/watch?v=glPjs73hpvU
What is our experience with 3PI/4PI? Is horn coloration clearly audible? I read about some attempts to reduce it (e.g. with tape or dreads). Does this help?

FYI. I currently listen to open baffle speakers with full range 8" 215 Supravox Bicone.

Fedde
 Topic: Melissa Parham
Melissa Parham [message #80915] Fri, 21 November 2014 01:00
Wayne Parham  is currently offline Wayne Parham
Messages: 17141
Registered: May 2009
Illuminati (33rd Degree)

It is with a heavy heart that I make this announcement.

Melissa Parham died on November 21, 2014.

index.php?t=getfile&id=1594&private=0


Eddie will never get to kiss his mother again. This would break Melissa's heart to think about. She loved Eddie more than anything in the world, and he loves her even more.

I remember when Melissa and I met. Seems like just yesterday. Melissa has so many friends and family that love her.

Some say that Melissa is in a better place. I hope that is true, that there is an afterlife where Melissa is full of joy and free from pain. I wanted so much for Melissa to have a wonderful, fulfilling and happy life, without burden or discomfort.

She used to often send me YouTube songs at work. There are a couple that seem to be stuck in my head: "Witness" by Sarah McLachlan and "Candle in the Wind" by Elton John. They haunt me now, bringing me such a heavy heart.

 Topic: Any Pi builders in Ireland ?
Any Pi builders in Ireland ? [message #80371] Wed, 03 September 2014 03:42
willsandbills  is currently offline willsandbills
Messages: 5
Registered: August 2014
Location: ireland
Esquire
Just wondering if there are any DIY speaker builders in Ireland who have built PI units?

would be nice to have a chat.


willie
 Topic: PI4 Build for home theatre
PI4 Build for home theatre [message #80353] Sun, 31 August 2014 09:47
willsandbills  is currently offline willsandbills
Messages: 5
Registered: August 2014
Location: ireland
Esquire
Hello all you experienced Pi builders, this is my first attempt at a PI speaker build.
I'm In Ireland so would love to make contact with anyone here who has built PI4 or similar.

I have 3 2226H drivers and will source 3 B&C 250 drivers in UK ( need to keep post and duty costs down)
I would like to confirm that all I need to order from Wayne is 3 ready built crossovers and 3 Flares.??

Another question, I will build the cabs in 18 mm (3/4 inch ) High density MDF and wonder is there anything to be gained by recessing the drivers in the wood ? versus simple surface mounting?
The cabinets will not be seen behind an acoustically transparent screen , I will paint them black.

I would also welcome any hints from members.


willie
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