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Re: 4 PI by Andy [message #74423 is a reply to message #74422] Sat, 10 November 2012 11:04 Go to previous messageGo to next message
mantha3 is currently offline  mantha3
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Nice!

Do you have any photos of one of these?
Re: 4 PI by Andy [message #74424 is a reply to message #74018] Sat, 10 November 2012 13:55 Go to previous messageGo to next message
zheka is currently offline  zheka
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wow
10 cu.ft. box. that's half of my room Wink.
Re: 4 PI by Andy [message #74425 is a reply to message #74018] Sat, 10 November 2012 14:00 Go to previous messageGo to next message
zheka is currently offline  zheka
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Wayne,

What effect the scoop-like baffle has in this design?
Re: 4 PI by Andy [message #74431 is a reply to message #74425] Sat, 10 November 2012 22:33 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
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Registered: January 2001
Illuminati (33rd Degree)

There's nothing gained by the angled baffle, it's just a really cool looking box, in my opinion. Way back when I had Bill Martinelli making our cabinets, I asked him to build these subs as a plain-ol' 10ft3 box and this is what he came up with for me instead. I thought it looked awesome, so that's what we were doing for subs ten years ago.

When I started embracing the multisub approach, I needed smaller boxes and that really marked the end of the big 224x series subs. They are just too big to distribute several around the room, and too large for flanking subs, at least for most people. But if you can fit them in your decor, they're awesome.

Re: 4 PI by Andy [message #74434 is a reply to message #74431] Sun, 11 November 2012 08:15 Go to previous messageGo to next message
mantha3 is currently offline  mantha3
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I'm thinking of getting a 4645C THX Sub by JBL. This is a built sub that has the 2242H driver in it.

The prices for a 2242H are around 900 - $1000

I called a place that has this 4645 for $1,000. They have really good prices on this thing. I asked how it was not marked up much from just the raw driver and he said that JBL charges a lot for just the drivers.


http://www.performanceaudio.com/images/products/100/7496.jpg

Dimensions: 1010 mm x 674 mm x 450 mm
H x W x D 39¾ in x 26½ in x 17¾ in

So about 10.6 Ft3



Re: 4 PI by Andy [message #74435 is a reply to message #74434] Sun, 11 November 2012 10:53 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18787
Registered: January 2001
Illuminati (33rd Degree)

That's an excellent sub. It has an EBS curve that gives a -3dB shelf below 100Hz that extends all the way out to 30Hz. And its efficient enough the shelf is around 93dB/W/M.

Re: 4 PI by Andy [message #74474 is a reply to message #74018] Wed, 14 November 2012 19:59 Go to previous messageGo to next message
mantha3 is currently offline  mantha3
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Registered: May 2012
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index.php?t=getfile&id=917&private=0

index.php?t=getfile&id=918&private=0

index.php?t=getfile&id=919&private=0
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Re: 4 PI by Andy [message #74769 is a reply to message #74474] Fri, 07 December 2012 08:28 Go to previous messageGo to next message
mantha3 is currently offline  mantha3
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I've been listening to these for a bit over a month now... Unreal. Never going to build another set of speakers again. A second subwoofer is all I'm thinking. Just following up after some time listening. I have been running On Demand high def movies thru these.. Then on High Def I've to the Palladia channel and have done about 8 or so different concerts.. It is like you are at the concert.

I put the older speaker on the other night... In the photos these are sittingon the new 4PI. These are Troels Gravesen Classic 3 way speakers that are nice. They can't keep up with these 4PIs. I think I'm the second to build with the taller mod. I don't have any tools/software to measure. I don't think I'll invest in this. My ears are as happy as ever. My wife loves these too.

Re: 4 PI by Andy [message #74770 is a reply to message #74769] Fri, 07 December 2012 08:49 Go to previous messageGo to next message
zheka is currently offline  zheka
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Registered: June 2012
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mantha3 wrote on Fri, 07 December 2012 08:28
I've been listening to these for a bit over a month now... Unreal. Never going to build another set of speakers again. A second subwoofer is all I'm thinking. Just following up after some time listening. I have been running On Demand high def movies thru these.. Then on High Def I've to the Palladia channel and have done about 8 or so different concerts.. It is like you are at the concert.

I put the older speaker on the other night... In the photos these are sittingon the new 4PI. These are Troels Gravesen Classic 3 way speakers that are nice. They can't keep up with these 4PIs. I think I'm the second to build with the taller mod. I don't have any tools/software to measure. I don't think I'll invest in this. My ears are as happy as ever. My wife loves these too.




I can relate, absolutely. Have you tried toeing them in? Wayne suggests 45 degrees. It makes huge difference in my room. all three front seats are well within the sweet spot.
Re: 4 PI by Andy [message #75289 is a reply to message #74422] Sun, 20 January 2013 09:25 Go to previous messageGo to previous message
zheka is currently offline  zheka
Messages: 80
Registered: June 2012
Location: Chicago burbs
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Wayne,

Do you use any damping material in your subwoofer boxes?

thank you.



Wayne Parham wrote on Sat, 10 November 2012 10:04

Yes, I love that woofer. Also love the 2241. But my favorite is the 2245.

Put one of those woofers in a 10ft3 box tuned to 30Hz. It makes an awesome sub. Like this:
index.php?t=getfile&id=914&private=0



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