Negatron 2 theater Build Thread - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 19 Old 06-16-18, 06:55 PM Thread Starter
 
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Negatron 2 theater Build Thread

We are closing on our new house in Mexico on Friday. Our living room will become our new Home Theater/Stereo (No dedicated room this time). The room is 19' wide with a 30' boveda ceiling, and is approximately 20' from the loft to the windows/doors. The distance from the bar to the windows is 30'. We plan on mounting a projector to the ceiling of the loft floor, and have the screen come down in front of light blocking curtains installed over the windows. The entrances to the wine cellar, and upstairs will be blocked off with sliding barn doors. The walls are about 1' thick clay brick, and the ceiling is also brick with the floors being Cantera black marble. This is def a live room that will be a challenge to tune.

I am starting this setup virtually from scratch, and it will be taking a while to get it back up and running again.

Equipment I have:
Yamaha cxa5100
14 channel DIY amp...to be disassembled, and amps to be either installed inside of biamped speakers or next to them (along with minidsp 2x4 crossovers). Amps will be plugged into Insteon outlets, and individually turned on and off according to how many channels are required.
JBL surround speakers from my old setup will be used for Atmos channels. Klipsch k402 speaker will be converted to a 2 way Synergy style speaker, and then I will make more to have a 5 channel setup utilizing my old EV DH1A drivers.
195" SeymourAV screen (new frame will have to be made, as I used the old frame to make our new equipment racks )the screen will lower down in front of the speakers. I am trying to figure out the sliding rails for each side of the screen, and a way to motorized the screen lowering, and raising from the area between the 2 windows.

Project RPM 1.3 Carbon turntable with Sumiko cartridge
OPPO 203
Furman power strips
Monoprice 75' XLR cables for the front 3 channels
Pioneer bluray player for ripping movies to our Unraid NAS
T channel audio rack with sand bed shelves. I will be modifying the config for the new setup, and making it about 6' wide, but lowering it to counter level.

Either coming or planning on getting: (no particular order)

1: $600 worth of Roxul for sound panels on order
2: 4k projector ?
3: Linear slide rails for moving the screen into position, and some sort of motor assembly controlled via Insteon
4: Dirac ?
5: Sub?
6: Bass shakers?

I am sure there will be more additions. Question marks mean brands, and models unknown at this time.



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My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..

Last edited by ellisr63; 07-13-18 at 11:53 AM.
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post #2 of 19 Old 06-18-18, 03:44 PM
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re: Negatron 2 theater Build Thread

Wow, nice room there!
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AJ

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post #3 of 19 Old 06-18-18, 05:06 PM Thread Starter
 
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re: Negatron 2 theater Build Thread

Thanks, AJ...we both fell in love with the house as soon as we walked into it...always a good sign.��

It even has a 100 bottle wine cellar! I might keep the NAS down there if I can figure out how to get the HDMI, and CAT5 wires to the 2nd floor cleanly. I figure it would be the best location as it will be cool year round.

Wine cellar
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My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..

Last edited by ellisr63; 06-18-18 at 08:18 PM.
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post #4 of 19 Old 06-18-18, 05:31 PM Thread Starter
 
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re: Negatron 2 theater Build Thread

Another view from the living room..
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My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..
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post #5 of 19 Old 06-29-18, 09:49 AM Thread Starter
 
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Re: Negatron 2 theater build thread

Looks like I will have some changes as the wife wants to have mirrors on the wall on the loft for her to practice dancing. This means I will no longer have 10' for the audio rack, but maybe 4' max, and still only a little over 2' high. The speakers will still be next to the windows but the doors will not be used behind the speakers (a plus for me), only the glass door to the left will be used. Room darkening curtains will be used, but not black, and a couple of carpets will be used for the floor too...again not black, but grey or blue with some white stripes (best compromise I could get as we will be getting the, from Costco).

On a 19' wide room, I will have to leave about 3' per side since we will be using the door which opens inward on the left, and we have the fireplace on the right. Not as much as I had wanted. Should I skip The center channel?

The old JBL speakers which are angled at 45 degrees as I recall will be set up as height channels, and as Auro3d channels. How do I calculate the height of them?

Would it be best to run side surrounds or rear surrounds, With the heights above them?

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My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..
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post #6 of 19 Old 06-29-18, 02:07 PM
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re: Negatron 2 theater Build Thread

Ron, fantastic!
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~Bob / Life, Love & the Blues
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post #7 of 19 Old 06-29-18, 05:14 PM Thread Starter
 
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re: Negatron 2 theater Build Thread

Talked it over with my wife, and she was only concerned with her wall of mirrors. I am getting the 19' loft ledge overlooking the living room. I can make a cabinet/rack on the whole 19'. So I think I will make my rack in the center, and cabinets on both sides of the rack. The cabinets will be white washed like the kitchen with the white rack, and Mesquite shelves in the middle. This should tie in nicely with the Mesquite floors. I love my wife!
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My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..
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post #8 of 19 Old 07-06-18, 09:30 AM Thread Starter
 
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1st... I need to calculate the speaker positions for my height channels.

2nd... I need to make a bench for my small workshop area which will have a benchtop drillpress, and a router table builtin.

3rd... I will be making the equipment rack, and get the cabinets made for each side of the rack on the 19' long wall.

4th... I hope to start on the room tune absorption panels.

5th... Then the synergy horn style speakers. I still am not sure what to do on the panels though. Should I make bass traps in the corners to about the window heights? First reflection panels I will almost guarantee will be right at the fireplace too.

Question... for my 5 height channels (eventual Auro3d) how high do I make them with my angled JBL speakers? Do I calculate to where they will hit the mlp, or do I need them to not be angled, and fire straight at the opposing walls? I need to figure this out ASAP so I can get the brackets all installed for the speaker mounts.

My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..

Last edited by ellisr63; 07-06-18 at 12:02 PM.
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post #9 of 19 Old 07-12-18, 05:10 PM Thread Starter
 
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re: Negatron 2 theater Build Thread

I have calculated my positions for my height channels, and it looks like my surrounds will be in the corner of the loft where it meets the side walls of the living room. The problem is now that in order to get the 30 degrees per side of the front channels my speakers would be in the corners. This means the front speakers would be partially behind my AT screen. In addition, I do not know how I can do the first reflection panels as the fireplace is about 3' from the front of the speaker, and protrudes out about 2 1/2' from the wall.

Suggestions?

My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..
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post #10 of 19 Old 07-25-18, 07:46 PM Thread Starter
 
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Ron
 
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Re: Negatron 2 theater Build Thread

I came up with an idea for corner mounting the speakers, and an engineer friend of mine is going finalize the design, and make them for me. We are going to use a modified version for the center since it will not be in the corner. I will post up pics when I get the new mounts.

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My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..
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