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post #571 of 588 Old 06-18-2020, 01:25 PM
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Looks like a device you might find in Kylo Ren's chambers.

Sony XBR65x900e / STR-DN1080 / original PS4 / WOW! Ultra TV / Quantum Access Mini PC Stick w/Windows 10 / 8 x Rockville SPG88 8“ DJ PA Speakers / Dayton Audio SA1000 / Kicker 08S15L74 in a Tapped-Tapered Quarter Wave Tube (negative flare tapped horn).
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post #572 of 588 Old 06-21-2020, 12:37 PM
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Progress this weekend. The entire system is now rewired. The rack is mostly complete. Still waiting for a final shelf due on monday for the minidsp and a couple other small components.

Also coming Monday are some lacing bars and velcro. As you can see, cable management is far from complete.

Next up is getting the electrical ran. I have one 20 amp outlet nearby and I'm planning on adding another 20 amp as well as the 30 amp outlet for the clone.

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post #573 of 588 Old 06-23-2020, 10:18 AM
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No more pictures yet but all the speakers are now hooked up and working. Cable management is mostly done. Still need to tidy up the run along the wall above the rack. It runs parallel to about 6 feet of electrical and I think that is causing a hiss in all my speakers including the atmos speakers powered by the receiver which should be dead silent. Tonight I need to get ethernet wired up to everything and get my wireless IR repeater in position. I did some preliminary testing with it last night and, to my surprise, it worked quite well for $38. Also hopefully getting finished tonight is the wiring for my additional 2 circuits. Hopefully by Wednesday/Thursday I can start tuning the system and getting some measurements of the alphas with my pillows.
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post #574 of 588 Old 06-23-2020, 10:23 AM - Thread Starter
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Sweet! Your system is gonna be awesome.
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post #575 of 588 Old 06-23-2020, 12:58 PM
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Originally Posted by Jedi940 View Post
No more pictures yet but all the speakers are now hooked up and working. Cable management is mostly done. Still need to tidy up the run along the wall above the rack. It runs parallel to about 6 feet of electrical and I think that is causing a hiss in all my speakers including the atmos speakers powered by the receiver which should be dead silent. Tonight I need to get ethernet wired up to everything and get my wireless IR repeater in position. I did some preliminary testing with it last night and, to my surprise, it worked quite well for $38. Also hopefully getting finished tonight is the wiring for my additional 2 circuits. Hopefully by Wednesday/Thursday I can start tuning the system and getting some measurements of the alphas with my pillows.
What IR repeater do you have ? I've been looking at them also.
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post #576 of 588 Old 06-23-2020, 07:05 PM
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What IR repeater do you have ? I've been looking at them also.
BAXF Products is the brand. I've never heard of them but the reviews seemed good. I was looking at a Sewell which had a good rating but almost every review on the page was negative so I decided to pass. It was also more expensive.

Played with this one a bit more today. Got it connected in the rack and the emitters placed on the devices. One common complaint of some of the other brands was that the emitter was very weak. It had to be placed in just the right spot and if it was not stuck directly to the device, it wouldn't work. I tested this one holding the emitters about 1 foot away and they still worked. No lag that I can notice. Every once in a while, it won't register a button but I expected that for a wireless repeater. Not often enough to be frustrating though. I'd recommend it. Here is the link.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Here is a shot of the emitter.


They are USB powered and come with a plug however, the USB cord is a bit short. I ended up sitting on the PDU at the back of my rack. The cord wan't long enough to put it somewhere better.
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post #577 of 588 Old 06-23-2020, 07:12 PM
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@Jedi940

Thanks. I'll check that out.
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post #578 of 588 Old 06-23-2020, 08:02 PM
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More progress tonight (with pics this time).

Electric is done. I now have one 15A, one 20A, and a 30A for the clone. While shopping for the plug and outlet on Amazon, I couldn't find a standard outlet and plug that was in stock and wouldn't take 3 weeks to ship so I ended up getting a locking plug. Makes me chuckle everytime I plug it in.


Finally got the rack finished too. Cable management isn't the prettiest I've done but I think it's decent given I used all cables I had laying around. I've spent enough money on this project so far. The only thing really screwing it up is the IR repeater. The cords aren't quite long enough to place it where I want it.


Also, if you haven't used these switches before they are awesome. The USW Flex Mini. It's a 5 port, POE powered switch for $30. No power cable necessary. Also it's MANAGED! If you run the ubiquiti controller, it's a fully managed switch. I got 2 of them and they are great. This one is providing the network access for the rack.


And some final shots of the rack all buttoned up. The extra space above the amps is eventually for atmos amps. Someday, I'll switch over to a balanced pre/pro and scrap RCA cables.



Still have to finish up a couple things like putting the drywall back on the wall and add some more velcro around the cable bundle. I did do some brief listening tonight and even without having time-aligned them. I just threw an HPF in the MiniDSP and fired them up. I can tell they add a lot. The MLP is close to equidistant from the front and rear 21's. I left the nearfields off for the time being as I didn't want they interfering and creating any more nulls. I did manage to tickle the clip light a bit on the PotP Barrel roll. Had to back off pretty quick. Wasn't expecting it to be that hot as I had already listened to othe EOT intro and it was only hitting -10. oops Can't wait until I can get these dialed in and add the nearfields. I have all the headroom I need now. I will probably create some plugs and drop the tune to give me better extension. I think sacrificing port noise during demos will be worth the trade-off for more extension during normal movie watching. I'll see how it turns out.
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post #579 of 588 Old 06-24-2020, 06:38 AM
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Nice looking rack. I'm sure your room sounds awesome

Automation: Alexa- Harmony Hub- Wemo Dimmer Switch- Wemo Smart Plug BatCave: SY Triple Black
Video Image: JVC RS500- Sony UBP-800X- Firestick- 125" wide 2.4:1 white over black spandex screen
Audio: 5.2.4 Marantz SR7011- (LCR) QSC 2180 - (Surrounds) (4) BIC FH6-LCR- (Atmos) (4) Dayton Audio B652 6-1/2-Inch- (Subs)2 23ishcuft ported HS24s 14-15Hz tune - 2 Devastator Minis B&C21ds115 - 2 Lavoce SAN214.50 ported cabs 15Hz tune- FP20000Q- 2 Sanway FP10000Q- Crown XLS1500- . To be continued...
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post #580 of 588 Old 06-24-2020, 05:40 PM
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Just to make sure I'm setting up the HPF correctly - It is a Butterworth 12db/oct for the Alpha correct? It lists second order at 19 but doesn't say Butterworth although that seems to be what is used for the other devastators.
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post #581 of 588 Old 06-24-2020, 05:47 PM
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Quote:
Originally Posted by Jedi940 View Post
Just to make sure I'm setting up the HPF correctly - It is a Butterworth 12db/oct for the Alpha correct? It lists second order at 19 but doesn't say Butterworth although that seems to be what is used for the other devastators.

Yes, that’s correct.

Chris
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post #582 of 588 Old 06-28-2020, 06:37 PM
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Ok, Final update. Everything is in place, turned up, and sounds amazing. So much more headroom now. I'm definitely approaching the craziness of others around here like the OP So much more punch now for gunshots and explosions. I can have my bass set somewhat balanced (for a basshead) at my normal listening level and no longer have to worry about blowing something when turning it up to reference for demos. That was the goal. I always set the level for reference demos so I never had to worry about blowing something but that left my normal listening volumes a bit on the low side. That problem has been solved. I briefly thought about getting rid of my nearfields but they still add so much to the experience I'm not ready to do that yet. Still a bit quite in the sub 20hz range but not having an enclosed room is making that difficult. At some point I will probably try plugging the port and drop the tune a bit to help with that. Even running 4 Sealed HT18 with a good amount of boos isn't helping much. No casualties yet but I'll be honest, I'm a bit scared to play stuff like the bomb scene from RPO at reference level. That much sustained bass will surely bounce something off a shelf somewhere. I already have to go around and straighten all the pictures and wall clocks after running some reference demos.

Here is the current curve after integration and Audyssey. I think that low end is a lost cause until a room gets built - or maybe a BOSS platform.


Here is a nearfield sweep of one of the alphas. I think I'm ok with the way I put the pillows in there.


I also spent some additional time tweaking the Titan 630s. I've never been fully happy with them since I built them. I have done all the crossover mods mentioned by mtg90 in the design thread but they still sounded a bit bloated/muffled. They measured decent but didn't have quite the natural sound I was looking for. Obviously this design is not the original intention of the speaker and I was about to go back to the stock crossover and scrap the second woofer when I managed to try this curve in the MultEQ app.


I lowered the 100-400 range, boosted the 1-3k range and flattened the top end with a slight rise from 9-10k. Here is the actual measurement from the center channel.


It definitely sounds so much better now. Not sure if it's quite 100% there but its so much closer than it was. Demo at reference are definitely more harsh with the top end boosted but the goal of this curve was for voices sound more true in the -10 to -20 range which is where most of my movie watching takes place. I may tweak it a bit more but right now I'm much happier with them and will be keeping the second woofer on them.
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post #583 of 588 Old 06-29-2020, 06:58 AM
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Them Titan 630's are HUGE! I'm surprised you built separate subwoofer enclosures. How come you tuned the to 25hz instead of 20hz? 7 of those bad boys would be NASTY in a 7.x.6 DA setup!

Sony XBR65x900e / STR-DN1080 / original PS4 / WOW! Ultra TV / Quantum Access Mini PC Stick w/Windows 10 / 8 x Rockville SPG88 8“ DJ PA Speakers / Dayton Audio SA1000 / Kicker 08S15L74 in a Tapped-Tapered Quarter Wave Tube (negative flare tapped horn).
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post #584 of 588 Old 06-29-2020, 07:31 AM
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Them Titan 630's are HUGE! I'm surprised you built separate subwoofer enclosures. How come you tuned the to 25hz instead of 20hz? 7 of those bad boys would be NASTY in a 7.x.6 DA setup!
Actually, I believe I built them tuned to 35hz just like the original design. I'd have to go back and look at my box design to be sure. That sweep was with the front stage set to small and the crossover set to 40Hz in the AVR. I was experimenting with several different settings and switching between large and small. As they are tuned at 35, I would like them to have some protection so I left them as small for now. I don't have enough DSP to do my own tweaking.

The reason they are separate enclosures was simply to make them more manageable. While building a single monstrous speaker has a certain "cool" factor, getting them downstairs and by myself would have been impossible. This way I can move them much easier. Also, I probably wouldn't have taken the outdoor measurements as much as I did if they weren't as easy to move around.
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post #585 of 588 Old 06-29-2020, 01:04 PM
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My fault. I was going by eng-399's Titan 630 thread below.

https://www.google.com/amp/s/www.avs...z.html%3famp=1

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post #586 of 588 Old 07-01-2020, 03:59 PM
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So I just got back home from picking up the micro devs from Jared’s and he was gracious enough to demo his system. He said he was tweaking it last night and OMG. The Ready Player One scene he played made me giggle like a little school girl. I’m not sure I can find the right words for how intense his system is now. I could feel the pressure in my ears, it’s that insane now. His next GTG should be quite interesting. Congrats Jared and thanks again!


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post #587 of 588 Old 07-01-2020, 05:22 PM - Thread Starter
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Dual Devastator micro build

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So I just got back home from picking up the micro devs from Jared’s and he was gracious enough to demo his system. He said he was tweaking it last night and OMG. The Ready Player One scene he played made me giggle like a little school girl. I’m not sure I can find the right words for how intense his system is now. I could feel the pressure in my ears, it’s that insane now. His next GTG should be quite interesting. Congrats Jared and thanks again!


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Always happy to have you over Rich! You were really giggling! You had me laughing too. It’s fricken loud. I’m not sure what the crap I did to make it that crazy, maybe just finally pushed the amps a tad, it’s making me worried about my walls though. Oh well, gotta find the weak spots!
Anyway, thanks for picking up the micros. Your gonna love them.
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post #588 of 588 Old 07-01-2020, 07:40 PM
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Always happy to have you over Rich! You were really giggling! You had me laughing too. It’s fricken loud. I’m not sure what the crap I did to make it that crazy, maybe just finally pushed the amps a tad, it’s making me worried about my walls though. Oh well, gotta find the weak spots!
Anyway, thanks for picking up the micros. Your gonna love them.

Well, whatever you did, you did well! You definitely will find the weak spots of the house now. Lol And yes, it is crazy loud!


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