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Old 15th January 2011, 03:02 AM   #61
Rudy81 is offline Rudy81  United States
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My active crossovers can handle the delays no problem, as should Audyssey Pro. I don't think the delay will be a problem.
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Old 15th January 2011, 07:56 AM   #62
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MiniDSP will do 7.5ms only. DCX can handle long delays and I use around 22 ms.
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Old 15th January 2011, 03:08 PM   #63
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I had measured 22 ms. when I did the outside measurement with the mic up close.
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Old 15th January 2011, 05:39 PM   #64
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Originally Posted by Rudy81 View Post
I finally had some time to finish putting the subs together and was able to hook them up to a Behringer ep4000. I had to set the sensitivity on the amp to absolute minimum, or they are just too loud. Here is a shot of the location I chose for now and where they were for REW frequency sweep testing.
nice built, Rudy

Any comment on using the SPUD cross at maybe 45~60hz?
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Old 15th January 2011, 07:00 PM   #65
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This isn't a SPUD. Similar, but different design and construction I beleive. Although, I have only seen pictures of the SPUD.

Anyway, I am using these only for LFE, so anything on the LFE effects channel below 125Hz will be sent to the subs. As you can see by the REW sweep, they handle that just fine. I am still putting things together in my room and need to run Audyssey Pro when I'm done. Then, I will be able to see how they perform for movies etc.
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Old 15th January 2011, 07:06 PM   #66
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This isn't a SPUD. Similar, but different design and construction I beleive. Although, I have only seen pictures of the SPUD.
Huh?!?

It looks like a TH-SPUD to me and you're posting in a TH-SPUD thread?

Did you not follow the leaked TH-SPUD blueprint to build it?
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Old 15th January 2011, 07:27 PM   #67
Rudy81 is offline Rudy81  United States
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I wish I had the real dimensions of a SPUD. Not all dimensions are included in the leaked plans. I actually had to figure some lengths out as I drew the template out. I also decided to do a different access door setup etc.

No big deal.
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Old 16th January 2011, 03:37 AM   #68
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I was thinking about the time delay thing. I guess an outboard EQ with 22ms of time delay wouldn't really help at all, since you would actually be wanting to get the audio signal to the subs about 22ms before the main speakers get it. Not 22ms afterwards.

So you would need to set the sub to no delay and instead put 22ms of delay on the main speakers (at the AVR).

Just thinking out loud, trying to understand this.
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Old 16th January 2011, 12:55 PM   #69
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You are correct. If you wanted to time align all your drivers, you would set the driver with the longest time delay to 0 and then delay all the other 'closer' drivers accordingly so that the time delay for all of them would be the same. I actually have done that for my main speaker drivers, bass and hf driver and subwoofer. (I have individual subwoofers assigned to each main, Klipsch RSW-15).

After running Audyssey Pro yesterday, it seems I won't have to do a system time alignment manually, since Audyssey takes care of that when in 7.1 surround.

Right now, the system seems to be running fine and Audyssey Pro did not complain of any issues when taking measurements.
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Old 25th January 2014, 09:53 PM   #70
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Reviving a old thread, question for the guys who built this. I am having trouble figuring out were the angled piece begins and end. I know it is 60 degrees from the out side edge but were do I mark out my 60 degree line. Hopefully my question makes since. I see that they have a 4" measurement from the inside of one of the out side pieces, to were the joint would be. But how far in do I measure off of.

Any help would be appreciated.
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