Corner subs for my theater build
ZLTFUL
Posts: 5,230
So I have been working on getting my basement finished and decided to take a break from the standard construction work to start building the rear subs for my theater.
The front stage will have 4 SI HT18D2s in DIYSG 4cf sealed enclosures stacked.
The rear subs will be in the back corners of the theater in custom built 4cf (after driver and bracing) corner cabinets housing 2 more SI HT18D2s.
The enclosures will be hidden behind fabric covered panels. I will finish them in black but I am not worried about them being perfect.
That being said, I am happy with how the first one came out. I still need to do the driver recess (waiting for my rabbet bit to show up), drill the hole on the top for the speakon and then shoot it black...after I complete the second one...
The front stage will have 4 SI HT18D2s in DIYSG 4cf sealed enclosures stacked.
The rear subs will be in the back corners of the theater in custom built 4cf (after driver and bracing) corner cabinets housing 2 more SI HT18D2s.
The enclosures will be hidden behind fabric covered panels. I will finish them in black but I am not worried about them being perfect.
That being said, I am happy with how the first one came out. I still need to do the driver recess (waiting for my rabbet bit to show up), drill the hole on the top for the speakon and then shoot it black...after I complete the second one...
"Some people find it easier to be conceited rather than correct."
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
Comments
Panamax 5400-EX
Sunfire TGP 5
Micro Seiki DD-40 - Lyra-Dorian and Denon DL-160
PS Audio GCPH phono pre
Sunfire CG 200 X 5
Sunfire CG Sig 405 X 5
OPPO BDP-83 SE
SDA SRS 1.2TL Sonicaps and Mills
Ctr CS1000p
Sur - FX1000 x 4
SUB - SVS PB2-Plus
Workkout room:
Sony Bravia XBR- 32-Inch 1080p
Onkyo TX-DS898
GFA 555
Yamaha DVD-S1800BL/SACD
Ft - SDA 1C
Not being used:
RTi 38's -4
RT55i's - 2
RT25i's -2, using other 2 in shop
LSI 15's
CSi40
PSW 404
Can we get a glimpse at the rest of the space?
Collecting Dust - Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, HTPC, One, Bottlehead Crack w/Speedball, Senn's MD HD600
Theater is getting 2 layers of 5/8" while the outside wall between the bar and theater is getting 2 layers of 1/2".
I will see about getting some pics today but it is currently very messy down there.
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
Why not stick with a single layer of 5/8 on the bar wall? I'm not really UP on my STC ratings but i wonder what the difference between 2 layers of 1/2" and 1 layer of 5/8 would be? If you soundbatt the cavity, i think the extra 1/2" is moot.
You're looking at a rating of somewhere in the 60-65 area which means you could be listening to 100db in your HT and only 30db would escape....That's going to be preeeeeetty quiet.
Collecting Dust - Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, HTPC, One, Bottlehead Crack w/Speedball, Senn's MD HD600
My goal is an STC in the neighborhood of 70-73. And my wife was adamant about the bar and theater not interfering with each other's enjoyment.
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
Holy kcuf!
Bryston 4B3, Bryston BDA3, Cary SLP05, Shanling CDT1000SE with parts conneXion level 2 mods, Nottingham analogue ace space 294, soundsmith Carmen MKii, Zu DL103 MKii, Ortofon MC 20 MKii, Dynavector XX2 MKii, Rogue Audio Ares, Core power technologies balanced power conditioner, Akiko Corelli power conditioner with Akiko Audio HQ power cable, Nordost heimdall 2, Frey 2, interconnects, speaker and power cables, Focal Electra 1028 BE 2, Auralic Aries Femto, Black diamond racing cones, ingress audio level 1 roller blocks, JL Audio E110 with Auralic subdude, Primacoustics room treatments.
Theater:
Focal Aria 926,905,CC900, SVS PB ultra x2. Pioneer Elite SC85, Oppo BDP93, Panamax M5400PM, Minix neox6, Nordost Blue heaven LS power cables.
Still not enough subs IMHO........ Need a front baffle wall of nothing but 21's or 32's... THEN we are talking lol.....
Ryan.... when you get ready for opening night, give me a heads up. I will see about coming out for it, and also throw together a invite for you to print/mail/post for others....
Make it a red carpet event.... I could even print out a fake backdrop like the Oscars to take photos with hehehe....
Wow....i know whose basement i'm going to when i want to start hacking people apart.
I thought my quick math was pretty close but i might be missing something. Are you doing one wall or two? Are you fully installing acoustic panels to cover the 100% of the walls?
Sorry for the questions. I just want to have something to fall back on when the time comes for me to build a better HT room.
Collecting Dust - Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, HTPC, One, Bottlehead Crack w/Speedball, Senn's MD HD600
Fixed it for you @mrbiron
And she'll beat mine and Ryans beehind for building it wrong. She's got knife skillz too.
No more children my friend.....at least not that have my genes.
Remember, you and i share a common bond with being in the "Two Daughters Club" or as i like to call it...F^&*3d.
Collecting Dust - Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, HTPC, One, Bottlehead Crack w/Speedball, Senn's MD HD600
2 walls are adjacent to outer concrete walls. The other 2 walls are essentially 3 walls thick with staggered studs and double drywall on both outer faces. Green glue between layers in the theater, both walls and ceilings.
The subfloor above the theater is getting 2 layers of drywall with green glue between both subfloor and drywall and then both layers of drywall in each joist bay. R19 in the ceiling.
Room treatments will be a best of scenario once the "bunker" is finished and I can measure the response of the room. But a combo of absorption and diffusion.
Doors will be a pair of solid core communicating doors with weather strip and mechanical thresholds.
The risers and stage will be configured as bass traps. With both rows of seating being suspended and only the "pit" between the first riser and the stage being on top of the concrete (although, I will most likely do dricore for that.
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
We do separated demising walls in our buildings as well. One big difference is in between the 2 studded walls, we have a layer of plywood but that is primarily for "shear" forces on the building. You can't hear anything when complete.
Sounds like fun. Pun INTENDED!
The only two changes i would have made would be to add resilient channel to the ceiling to decouple the drywall from your floor joists for noise/bass transmission, AND don't buy into drywall glue, on your next go around of course.
POSTS MORE PICTURES DAMNIT!!!!
Collecting Dust - Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, HTPC, One, Bottlehead Crack w/Speedball, Senn's MD HD600
Looks like neoprene isolation boots to hold the track in place away from the bottom of the TGI joists.
Ryan can elaborate.
Doing a layer of plywood inside the walls...or any "sealed" mass really would cause a triple leaf effect.
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
Source: Roon via ethernet to DAC interface
DAC: Bricasti M1SE
Pre/Pro: Marantz AV8805
Tube Preamp Buffer: Tortuga TPB.V1
Amp1: W4S MC-5, AMP2: W4S MMC-7
Front: Salk SoundScape 8's, Center: Salk SoundScape C7
Surround: Polk FXIA6, Surround Back: Polk RTIA9, Atmos: Polk 70-RT
Subs: 2 - Rythmik F25's
IC & Speaker Cables: Acoustic Zen, Wireworld, Signal Cable
Power Cables: Acoustic Zen, Wireworld, PS Audio
Room Treatments: GIK Acoustics
Nice!!! Isolation clips on the RC1 channel is legit. Glad to see you know drywall screw spacing. Can't wait to see your corner bead
We need the plywood for structural requirements on our end. Would be a little overkill...
Pictures...don't make me ask a 45th time.
Lightman, I'm holding up a finger for you and no, it's not NOT my middle finger.
Collecting Dust - Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, HTPC, One, Bottlehead Crack w/Speedball, Senn's MD HD600
You can check out the weak start to my build thread here...
http://www.avsforum.com/forum/19-dedicated-theater-design-construction/2831929-blank-slate-cinema-macgillvray-pub-build-thread.html
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
Cables: Speaker: Furez 10/2 with GLS Locking Banana Plugs
Interconnect: Furez 10/2 with SpeakONs
ICs: Custom Furez by Douglas Connections
Den:
Bose 901 Series II Continentals Restored, Re-Built Equalizer with Elna Silmic IIs, Sonicaps, and Silver Mica Caps
Carver CT-3 Pre, Carver C-500
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"And keep her under 70, would you, huh? Betty likes a slow ride"
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
Understand why you needed a fancy night out on the town!
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
Cables: Speaker: Furez 10/2 with GLS Locking Banana Plugs
Interconnect: Furez 10/2 with SpeakONs
ICs: Custom Furez by Douglas Connections
Den:
Bose 901 Series II Continentals Restored, Re-Built Equalizer with Elna Silmic IIs, Sonicaps, and Silver Mica Caps
Carver CT-3 Pre, Carver C-500
dhsspeakerservice.com/
Exclusive Distributor of Gimpod's Custom SDA Circuit Boards
"And keep her under 70, would you, huh? Betty likes a slow ride"
Collecting Dust - Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, HTPC, One, Bottlehead Crack w/Speedball, Senn's MD HD600
You and me both.
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
I will throw a hammer at your stupid face!
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip