Official JTR Orbit Shifter Subwoofer Thread - Page 43 - AVS Forum
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post #1261 of 1267 Old 12-12-2014, 11:49 AM
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Originally Posted by DotJun View Post
What the hey? Someone spiked my punch bowl cause I'm seeing 6 os up front!



I don't know how you are able to stand the way you have your subs placed. My ocd would destroy me seeing my subs placed out of symmetry
my OCD runs deeper for the sound than the visual appearance. Unfortunately my OCD may be more difficult to solve than yours
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Pre-Pro: Emotiva XMC-1, DSP: Mini DSP 2x4 balanced
Amplifier: Sunfire TGA7400, Lab Gruppen FP10000Q
Speakers: JTR Noesis 212HT (LCR), JTR Slant 8's (surrounds), 3 Orbit Shifter LFU's
Sources: PS3, HTPC, Dish Network
Projector: Epson 8350
Screen: Seymour XD AT 138" diagonal 16:9
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post #1262 of 1267 Old 12-12-2014, 01:17 PM
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yes kinda of like 3rd row at a big concert benue. HAHA

For me the biggest challenge is to get you sound to sound bigger at high SPL not louder if that makes any sense. I think absorption, time alignment and impulse response are the key parameters I have been focusing on to make higher SPL's just sound bigger not louder if that makes any sense.
I know exactly what you're saying. That's why to me, the IMAX have that huge hall advantage and the sound is just different.

I hope you eventually discover how to replicate it in a small space.
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post #1263 of 1267 Old 12-12-2014, 05:49 PM
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^doubt I can duplicate it but hey we can keep trying right? that's half the fun.

Pre-Pro: Emotiva XMC-1, DSP: Mini DSP 2x4 balanced
Amplifier: Sunfire TGA7400, Lab Gruppen FP10000Q
Speakers: JTR Noesis 212HT (LCR), JTR Slant 8's (surrounds), 3 Orbit Shifter LFU's
Sources: PS3, HTPC, Dish Network
Projector: Epson 8350
Screen: Seymour XD AT 138" diagonal 16:9
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post #1264 of 1267 Old 12-13-2014, 08:17 AM
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^doubt I can duplicate it but hey we can keep trying right? that's half the fun.
I think you can do it with DSP...

I read a bit about this 'hall effect'.

I read from an article, I can't remember where now, that when our brain gets that 'reflected sound' a 'certain ms'.. ie, certain distance from us, we get that 'spaciousness feel' and music sounds better. If the hall is too big, it can then be echoeing... which is bad... and all absorption is 'dead sound', also bad... if the room is too small, then the 'reflected sound is too close to each other as to make the room sound 'small'... They did an experiment where the room was pitch black and participants were asked how big the room is as they play different tracks. What they did was use a processor to 'generate' the appropriate 'reflected sound' at the appropriate 'ms in time'.. and people reported the room to be a giant hall, when it's only a very small room. Basically, i think if you're trying for that 'feel', you'll need a DSP that 'simulates' that giant hall.. It's akin to tricking our brain.
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post #1265 of 1267 Old 12-13-2014, 03:03 PM
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interesting. I think starting with absorption in my small room is good. Get the impulse response improved then add back some spaciousness after the 30ms or so. I need to read more, thanks for the post.

Pre-Pro: Emotiva XMC-1, DSP: Mini DSP 2x4 balanced
Amplifier: Sunfire TGA7400, Lab Gruppen FP10000Q
Speakers: JTR Noesis 212HT (LCR), JTR Slant 8's (surrounds), 3 Orbit Shifter LFU's
Sources: PS3, HTPC, Dish Network
Projector: Epson 8350
Screen: Seymour XD AT 138" diagonal 16:9
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post #1266 of 1267 Old 12-22-2014, 10:21 PM
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Anyone know if the amp has built in HPF? If yes, happen to know what hz it is set at?
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post #1267 of 1267 Old Today, 10:25 PM
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So to my understanding..On the OS Pros. Do you choose either 8,4,or a 2 ohm version? If so, I'm assuming a 4 ohm version is more versatile and a lot more stable on different amps?
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