Stereo Integrity's new HT Subwoofer - Page 51

Lol! That doesn't sound like a very good mod then.

Ha, yeah it's better than nothing and definitely noticeable though.

I'll have to do better than that though, especially with eight or nine amps running simultaneously. My modded ep2500 is inaudible at my seat which is about 6ft but that might be because my Panny ax200u is much louder and about 4ft away. Lol!

Switching gears rapidly as I often do...

I'm going to do some more free air testing as per recommended by Nate. I'm ignorant to all things DIY, impedance, etc. etc., do last time I just hooked up the left speaker wire to one set of the terminals on the SI driver using a full range no sub using the receiver to power the drivers one at a time. I used a 10hz test tone for 10 seconds or so on each driver and there was a lot of movement and no bad sounds, or any sounds.

I'm going to do the same thing but use bassy music instead of a test tone and use the receiver again. Is that ok?

or you could get one of these and run your 12 volt trigger cable to it from your avr. thats what im doing. amp in the laundry room like your planning.

http://www.amazon.com/Furman-MP-20Q-Accessory-Electrical-Maintained/dp/B0002JSY34/ref=sr_1_5?ie=UTF8&qid=1360958993&sr=8-5&keywords=furman+power+mp

I already told him we could go absolutely as quiet as he wanted to, right up to the point of pulling both fans out completely Howver, based on the specs that I pulled from the OEM fans I wasn't comfortable going down farther than that on a first go. For the record, it still ran ice-cold at my place, although carp beats his stuff harder than I do in the apartment. Definitely something we can measure and change though after he gets going.
Edited by MrSmithers - 2/15/13 at 12:49pm

I thought dayton paled in comparison to si and si. 15 would be better in a small box and go deeper

WTF??!!! Do they need another 4311?? lol

Not sure where you got that information from. The Daytons appear to perform a little better in smaller cabs. Gorilla has listened to both of them and has mentioned it's pretty much a crapshoot either way. You will be more than happy with either of them. Reason I went with SI was past experience with the product, current pricing and availability, and more wiring options with DVC.

Pricing on daytom is high yeah too much for me... 15 may me all i can do

Please divulge if you don't mind?!?! I would like to hear about these "gremlins"

Oh, it's just little things like if you turn the receiver off and back on it defaults to keeping Audyssey on even if you turned it off. One of the units turned off and wouldn't come back on until David unplugged it and plugged it back in and then it came on - there was something else I can't remember, but some of the guys were talking about having similar issues with the 4311.

Interesting, I haven't seen that issue once with my AVR. Guess it is just coincidence that you had two units that were suffering from the same issues...

*edit* I read the original post the wrong way. But still, low THD isn't for everyone. Swear it took me a solid two to three months to get used to the way my first XBL^2 driver sounded.
Edited by Electrodynamic - 2/18/13 at 9:37pm

I have also seen a few weird things with mine such as:

-Changing the subwoofer calibration from 1 to 2 subs or 2 to 1 will not store the setting. Same thing happened when I set my rear surrounds to "on" - Audyssey was not checking for those. I have to "hard reset" the unit for it to take new settings.
-Crossover changes are not always saved properly after backing out of the speaker config menu
-Even after setting my speaker configuration, sometimes Audyssey will continue to check for front wides/heights even after I set to "not present" in the menu. This doesn't happen every time either, which is even more odd, heh.

I understand all products have some issues from time to time, but for the price of this unit (much more than I had ever previously spent) I would expect it to be flawless.

Box 1 of 4 preview:

Nice Austin!


You changed design plans?

WOW.

Yeah, those fancy 45 degree angles a wanted initially were posing some issues for me because I wanted a double baffle recess + grill. I'll start a build thread here soon and post up all of the designs I went through.

Cool, I'm curious so that will be interesting. How much will the total weight be of the enclosure in the pic? I think the drivers are something like 38 pounds, so 150ish pounds plus whatever the box weighs. Not a one man job for sure moving that into your room!! Especially since there will be 4 boxes!!

Friggin awesome BTW, nice work.

I bought 2 of the CV-5000s too and it looks like the stock fans have the following specs (2 fans per amp):

120mm x 120mm x 25mm
Dual ball bearing
24vdc
Ultra high speed (3000 rpm)
Auto restart without signal output
100 cfm
0.269" static pressure
45.7 dBA (ea)
0.28 amps

That's a lot of wind! I know that for HT use we don't need quite the cooling capability that is required for DJ or constant EDM use, but it's still not going to be an easy to find replacement. How low do you go and still feel safe...are you willing to thermal your amp repeatedly until you get a fan that hits the sweet spot?
I think I will remotely locate my 2 amps. I've already built a remote 12v triggered contactor setup to power on/off.

Box doesn't feel that heavy, even with a triple front baffle. I'll see if I can find a scale tonight.

Here is a perspective shot to get a better idea of the size.

^^^^^^

OH DANG!!!! The tower of power!!!

I can see the news headlines already-- Man collapses house with his home theater......

Wow. To think that isn't even 1/4th the full setup.

Good to have that info. I'll investigate alternatives as an amp in another room is not an option for me.


Bring it on!!!!

Wow Austin!

Is that 7' or 8' tall?

Im going to go with 74 inches of cut baffle space, and 2 inches in between each woofer for a grand total of 84" exterior height. 7 feet on the nose

Yowzer! And I thought my vertical triple stack was tall. That is awesome.

The powerrrr!





Dang B! Spot on...

Man, vertical stacks would be awesome, but I just don't have the room. Going to have to take the subtle horizontal approach.