BassThatHz Theater Build - Page 37 - AVS Forum | Home Theater Discussions And Reviews
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post #1081 of 1130 Old 10-08-2018, 03:26 PM
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Nice comparison!

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post #1082 of 1130 Old 10-08-2018, 04:04 PM
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Quote:
Originally Posted by BassThatHz View Post
Finally bringing 4K to my theater (2019):


The GPU is totally optional of course. I may wait for the RTX2050 because I'm not a hardcore gamer. Right now I'm limping by with Integrated Intel graphics (which is unusable @ 4k with just video, let alone gaming...)

FWIW, I picked up a used EVGA GTX 960 (2G) SSC ACX 2.0+ ($115 Shipped), and it does great with 4K...now if I can only get about 2% of your bass, then I'd feel better. Lol

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post #1083 of 1130 Old 10-08-2018, 05:51 PM
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Bth, you made the right choice skipping the Sony x800, I have one and it tends to lockup from time to time. It has some potentially useful stuff like Bluetooth headset support, and SACD playback, however as it came out well before the x700 it doesn't have Dolby Vision support like the x700 does.

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post #1084 of 1130 Old 10-08-2018, 05:57 PM
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Quote:
Originally Posted by BassThatHz View Post
Buy hiss-less amps for tweets and mids.
What are the options for these? Do the clones have too much hiss?


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post #1085 of 1130 Old 10-10-2018, 05:25 PM - Thread Starter
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Quote:
Originally Posted by d-rail34 View Post
FWIW, I picked up a used EVGA GTX 960 (2G) SSC ACX 2.0+ ($115 Shipped), and it does great with 4K...now if I can only get about 2% of your bass, then I'd feel better. Lol
My old rig has a 670 in it and even that can handle 4k 60hz, I could just through that in my new rig if I was willing to retire my old rig. Just waiting for the price of 4TB M.2's to come down so that I don't have to deal with HDD's even for archive data.
That would work in the short-term but it doesn't have 0rpm fans.

The problem with the Streacom case is that it is non-standard. A normal PSU can't be mounted inside it unless you take the lid off and put the PSU side-ways without mounts.
Which I may have to do if the modular wiring is too short for external.
The pains of a 0db heat-pipe-only computer.
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post #1086 of 1130 Old 10-10-2018, 05:27 PM - Thread Starter
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Originally Posted by Pradeep2 View Post
Bth, you made the right choice skipping the Sony x800, I have one and it tends to lockup from time to time. It has some potentially useful stuff like Bluetooth headset support, and SACD playback, however as it came out well before the x700 it doesn't have Dolby Vision support like the x700 does.
Good 2 know.

Hopefully the 700 doesn't lock up.
I don't have any UHD discs, nor do I have an HDMI DAC with me here. (I do at home though... but it's 7.1 Atmos bed-only via LPCM. I really do need that 7705 by new-years ideally...)
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post #1087 of 1130 Old 10-10-2018, 06:00 PM - Thread Starter
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Originally Posted by Pradeep2 View Post
Do the clones have too much hiss?
They do have a small amount when connected to 108db/w/m tweeters, but it's not too horrible though. (The fans drown it out ).
These amps really aren't designed for home-use, they are designed for outdoor rock concerts. Can't have everything all the time!
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post #1088 of 1130 Old 10-10-2018, 06:11 PM
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I love my X800

Automation: Alexa- Harmony Hub- Wemo Dimmer Switch- Wemo Smart Plug BatCave: SY Triple Black
Video Image: JVC RS500- Sony UBP-800X- Chromecast- 125" wide 16x9 white over black spandex screen
Audio: 5.2.4 Marantz SR7011- (LCR) Stage Right 15" PA- (Surrounds) (4) BIC FH6-LCR- (Atmos) (4) Dayton Audio B652 6-1/2-Inch- (Subs)2 23ishcuft ported HS24s 14-15Hz tune- 4 MOFO 15s in 2 dual ported cabs 17Hz tune- FP20000Q- 2 Sanway FP10000Q- Crown XLS1500- . To be continued...
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post #1089 of 1130 Old 10-12-2018, 09:03 AM
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BTH have you ever run sweeps in your room something like -
1 sub
2 subs
4 subs
8 sub
16 subs
32 subs

I know of no other setup where the data could be collected and be valid i.e. enough spread throughout a room to get true measurements. If you are open to it I would very much like to see the data.

ive done enough in my room with 1 2 4 and 6 to see very dramatic changes in response....anyway figured i would ask.

also...when you eq your subs and setup how many LPs do you use? Very interested in your methodology. I may be the only one who read this entire thread but i dont recall much setup discussion (obv you are beyond sharing those details as you built the entire place from scratch).

I saw your comment in the other thread about setting up one position vs multiple...and that delay is of little importance in the multi setup...and it made me curious to learn more. i know you mentioned building your own dsp. Anyway, whatever you might share about system setup would be valuable for me and im sure others.

just to be clear i am truly curious. i have no agenda or desire to critique or criticize. as one example of learning i would like to understand your thoughts on eq for each sub vs global eq...i saw you mentioning separate nearfield measurements and eq for each. in the past when ive tried this i found it much harder to get consistent response (at multiple positions) than global eq....
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post #1090 of 1130 Old 10-12-2018, 09:21 AM
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EXCELLENT request!

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 #1091 of 1130 Old 10-12-2018, 11:55 AM - Thread Starter
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Quote:
Originally Posted by RoboAVS View Post
BTH have you ever run sweeps in your room something like -
1 sub
2 subs
4 subs
8 sub
16 subs
32 subs

I know of no other setup where the data could be collected and be valid i.e. enough spread throughout a room to get true measurements. If you are open to it I would very much like to see the data.

ive done enough in my room with 1 2 4 and 6 to see very dramatic changes in response....anyway figured i would ask.

also...when you eq your subs and setup how many LPs do you use? Very interested in your methodology. I may be the only one who read this entire thread but i dont recall much setup discussion (obv you are beyond sharing those details as you built the entire place from scratch).

I saw your comment in the other thread about setting up one position vs multiple...and that delay is of little importance in the multi setup...and it made me curious to learn more. i know you mentioned building your own dsp. Anyway, whatever you might share about system setup would be valuable for me and im sure others.

just to be clear i am truly curious. i have no agenda or desire to critique or criticize. as one example of learning i would like to understand your thoughts on eq for each sub vs global eq...i saw you mentioning separate nearfield measurements and eq for each. in the past when ive tried this i found it much harder to get consistent response (at multiple positions) than global eq....
Yeah but, my subs are of various different sizes, brands, placements, XO's. Most are sealed but there is the HzHorn.
I've pretty much abandoned all hope of ever having unified drivers at this point. No thanks to various places like TC sounds going bankrupt mid-purchase. I've invested way too much money in my current ones, and all the remaining good drivers of today are either unobtainium because of MOQ or even sheer cost of obtainment.

I'm not sure if there is much value in comparing 1 LMS to 16 PA-460's or 2 UM-15's to 1 SAB 24.

But here is the only charts I have that shows most / all of them:


That said, these aren't max performance charts, I'm trying to integrate them, not melt them

All but 3 of the subs are along the front wall, their positions can be seen in these 2 vids.

Vid of the general layout/wiring of the rack:
Sorry my GoPro has horrible low-light performance and no LED.

The DSP you'd almost have to be a NASA employee to understand how it is configured.
Or at least a Motu/Adobe Audition 2018 technician, as that's what I use.

There is no AVR or soundprocessor in my system atm. There is no physical volume knobs. Which confuses many.

I use my Oppo remote for Master Volume for movies, and music I use the volume sliders in foobar or whatnot.
Motu and Audition has many volume sliders with near infinite amounts of digital gain in total, as well as routing and XO's.

My system has high amounts of brain hert...























layer and layers of brain hert...
How would I describe that to anyone? Where would one even start...
I tend to break AVS everytime I try...
ALIENS! That's how!
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Last edited by BassThatHz; 10-12-2018 at 12:04 PM.
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post #1092 of 1130 Old 10-12-2018, 12:14 PM - Thread Starter
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and on that note, the first 4k component has just arrived.

Time to make the system even more complicated!
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post #1093 of 1130 Old 10-12-2018, 02:51 PM
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Originally Posted by BassThatHz View Post
and on that note, the first 4k component has just arrived.

Time to make the system even more complicated!
How will you do volume control with the x700?

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post #1094 of 1130 Old 10-12-2018, 03:28 PM - Thread Starter
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I just tested a normal BD and the x700 works great (thus far...)
Very fast boot!

Quote:
Originally Posted by Pradeep2 View Post
How will you do volume control with the x700?
I will be bitstreaming to the 7705. Which has volume control.
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post #1095 of 1130 Old 10-12-2018, 04:45 PM
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BTH what are your DCX's for?

I was looking at getting a minidsp 2x4 but also looked at getting the DCX2496. I plan on going to a fully active setup for mains down the road but wanted to maybe get a mini for a mbm/sub setup off my single Lfe preout for now.
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post #1096 of 1130 Old 10-12-2018, 10:09 PM
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all I know is you made my addiction worse. everyone complaining about wanting triggers for amp turn ons, pffff I ENJOY flipping these switches and I only have like 1/4th of them hahaha
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post #1097 of 1130 Old 10-13-2018, 06:10 AM
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I do hate that the blue light of my amp stays on all the time. I can't even tell that it dims when it turns off from loss of signal.

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post #1098 of 1130 Old 10-13-2018, 08:26 AM - Thread Starter
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Quote:
Originally Posted by chrapladm View Post
BTH what are your DCX's for?

I was looking at getting a minidsp 2x4 but also looked at getting the DCX2496. I plan on going to a fully active setup for mains down the road but wanted to maybe get a mini for a mbm/sub setup off my single Lfe preout for now.
The dcx's are legacy stuff from my old system. 9 inputs 18 outputs, with very limited routing.
The motu's as currently configured are 24 inputs 48 outputs with unlimited routing and with room for additional expansion.

I can honestly say that this motu stuff is the first gear I've seen that is crazier than I am...
The guts are made from 1% science, 99% unicorn hair...
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post #1099 of 1130 Old 10-14-2018, 02:41 PM
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One thing I didnt realise about the dcx2496 is that apparently input C is designed for a microphone input, and has a non defeatable mic pre amp in line. Safest to consider it a 2 in 6 out dsp unit in terms of reasonable quality. Still that works fine for a pair of three way active speakers so still good value.

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post #1100 of 1130 Old 10-15-2018, 01:00 AM
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Quote:
Originally Posted by Pradeep2 View Post
One thing I didnt realise about the dcx2496 is that apparently input C is designed for a microphone input, and has a non defeatable mic pre amp in line. Safest to consider it a 2 in 6 out dsp unit in terms of reasonable quality. Still that works fine for a pair of three way active speakers so still good value.

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Probably going to be my go to until I can afford a miniDSP with Dirac. Just need to have 8 channels for my L/C/R so may have a pair of these units since I need a few and the value is ok.
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post #1101 of 1130 Old 11-29-2018, 12:03 PM
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With my UBP-X700 I have only experienced freezing while playing certain UHD discs. I pretty much only use it for playing discs and rarely use the streaming features because my TV handles that. I'm still mildly upset that the newer Sony players no longer support streaming certain lossless music formats over home networks.
The freezing movie thing is only with UHD discs from certain studios (Warner being one of the worst). They use some kind of mold release compound or coating to keep the discs from sticking to each other in the factory that stays on the things. If you don't clean it off, then it is almost guaranteed that the movie will freeze at some point. I've had it happen so far with Ready Player One and Jurassic World: Fallen Kingdom. The player looks like it has gone into full lockup when really it is just attempting to read ahead on the disc for a spot that it can read reliably. The UHD lasers seem to be quite a bit more picky than the 1080p Blu-ray ones. After a quick wipedown with water and a microfiber cloth, we were back in business with no freezing. Other than that, the player is easy to live with and hasn't done anything weird. I keep a list of all the movies in my collection, so I just do a quick double-check to see if I need to change the setting for Dolby Vision and away we go.

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post #1102 of 1130 Old 01-03-2019, 07:27 AM
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I just can't understand how you can live with that hideous shelf construction for your amps. Go get em already.
Should be fairly easy to integrate these beautifully.
No complaints about weight handling, some mods to this and it'll be rock solid.

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post #1103 of 1130 Old 01-03-2019, 09:26 AM
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Quote:
Originally Posted by BassThatHz View Post
But here is the only charts I have that shows most / all of them:


That said, these aren't max performance charts, I'm trying to integrate them, not melt them


The DSP you'd almost have to be a NASA employee to understand how it is configured.
Or at least a Motu/Adobe Audition 2018 technician, as that's what I use.

My system has high amounts of brain hert...

ALIENS! That's how!

With a vertical scale of 180 dB to 5 dB that will tend to make anything look flat. Try posting a measurement zoomed in with no smoothing and a vertical scale of just 20 dB.

Ask your doctor if DIY is right for you. Side effects of DIY may include anxiety, elevated blood pressure, lightheadedness, rapid heartbeat, skeletal muscle flaccidity, euphoria, psychological dependence, insomnia, confusion, blurred vision, implusivity, uncontrolled or repeated movements.
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post #1104 of 1130 Old 01-03-2019, 09:32 AM
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Here's an outdoor measurement with similar settings.

Ask your doctor if DIY is right for you. Side effects of DIY may include anxiety, elevated blood pressure, lightheadedness, rapid heartbeat, skeletal muscle flaccidity, euphoria, psychological dependence, insomnia, confusion, blurred vision, implusivity, uncontrolled or repeated movements.
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post #1105 of 1130 Old 01-03-2019, 12:11 PM - Thread Starter
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Increments of 20db is not very useful.
I prefer increments of 5db...
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post #1106 of 1130 Old 01-03-2019, 10:38 PM - Thread Starter
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Here is my Dec 2018 sweep with the FP20k's and SAB-24 and Motu's etc...

No smoothing this time, and tighter vertical tolerances. With THD plot.



Integration sweeps, not max spl sweeps.
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post #1107 of 1130 Old 01-03-2019, 11:18 PM - Thread Starter
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But regardless, for comparison sake... here is mine, with your 20db scaling thing going on.

Also phase plot and mic plot. Because why not...
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post #1108 of 1130 Old 01-13-2019, 08:40 AM
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What's going on at 100hz? Why the 20dB dip?
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post #1109 of 1130 Old 01-13-2019, 10:38 AM - Thread Starter
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My 1st guess would be the broken HzHorn, the LMS-18 ripped the bracing out on the first day, it has had resonances ever since... (should have used more PL and screws, my bad...)


It probably needs to be rotated to face the corner of the room, or needs a 70hz LPF, or at the very least needs help from RePhase...

Firing into the room (my room) the HzHorn has it's first phase shift at 33.5hz, it's likely the horn resonances and phase shifts above 70hz. When I rebuild a pair of HzHorn's this summer I will try to line the box with foam, and maybe using a pair of them on each side of the room will help smooth things out in the room-width modes.

The dip up higher is likely from the Left MBM array


My 2nd guess: would be room nulls, or other complex interactions between the various different brands/boxes/locations.
If all of the drivers in my room where the same brand, then it would instantly be blamed on room nulls. But they aren't.

Also keep in mind that these charts were only take from the Golden seat, other seats likely have other nulls. One could probably spend eternity chasing all of the nulls out of all of the seats.

I haven't bothered to fix it because I don't even notice it to be honest, it's hard to even hear yourself think when your skin is peeling off and your ears are bleeding and the fear of triple drywall falling off the ceiling cracking your skull. hehe!
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Last edited by BassThatHz; 01-13-2019 at 10:41 AM.
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post #1110 of 1130 Old 01-13-2019, 10:58 AM
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lol... you have so many subs that you'd never know if one wasn't even working!

When you go to listen to your system, do you do a pre-check? Something like... play 10hz and visually inspect all cones for movement?
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