Overclock.net › Forums › Consumer Electronics › Home Audio › Subwoofer Build
New Posts  All Forums:Forum Nav:

Subwoofer Build - Page 2

post #11 of 18
I suggest the crown over the behringer.

I warn that at high listening levels, there would likely be audible chuffing below ~35hz in the 20x20x20 box with 2x 3"x19" ports. A similarly sized or perhaps slightly larger (volume wise) tapped transmission line design would eliminate vent noise, reduce distortion, and improve maximum output. The driver is also well suited to 6th order boxes.

I could share some ideas and simulations if you are interested. What pass band do you need this sub to cover, and how large a box can you tolerate?

Regards,
Eric
     
CPUMotherboardGraphicsRAM
FX-8350 990X EVO R2.0 Sparkle GTX460 768MB ballistix tactical 2 x 8GB 
Hard DriveHard DriveOptical DriveCooling
Toshiiba THNSNH 256GB Enterprise RE3 1TB Asus BD combo drive Artic A30 
OSMonitorMonitorMonitor
Manjaro Linux Samsung 21.5" LCD E2009WFP E2009WFP 
PowerCase
Seasonic G 550W Modular Fractal Design Core 3500 
CPUMotherboardGraphicsRAM
FX-6300, 4.7 GHZ@1.43V GA-970A-UD3P GTX 460 768MB Mixed DIMMs. 2x4GB + 2x8GB @ 1600-8-8-8 
Hard DriveHard DriveHard DriveHard Drive
Toshiba THNSNH 19nm 256GB 1TB Spinpoint F3 WD RE3 1TB WD RE3 1TB 
Optical DriveCoolingOSOS
yes CM Seidon 120V SolydK OpenSuse 13.1 
OSOSMonitorMonitor
Linux Mint 9-32 bit // Linux Mint 17-64 bit  Manjaro Xfce Samsung 21.5" HannsG 21.5" sideways! 
KeyboardPowerCaseMouse
Sticky ATNG Rosewill Green 630W NZXT Gamma Basic Microsoft corded 
CPUMotherboardGraphicsRAM
A10-6800k 4.8GHZ @ 1.375V, 1.2GHZ iGPU Gigabyte GA-F2A85XN-WIFI HD8670D Ripjaws 
Hard DriveOptical DriveCoolingOS
Seagate ST1000DM003 Asus BC-12B1ST/BLK/B/AS Zalman CNPS5X Linux Mint 15 
MonitorKeyboardPowerCase
LG IPS224V-PN Logitec K360 FSP 400W Aurum S 80+ gold Prodigy 
Mouse
logitec M235 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
FX-8350 990X EVO R2.0 Sparkle GTX460 768MB ballistix tactical 2 x 8GB 
Hard DriveHard DriveOptical DriveCooling
Toshiiba THNSNH 256GB Enterprise RE3 1TB Asus BD combo drive Artic A30 
OSMonitorMonitorMonitor
Manjaro Linux Samsung 21.5" LCD E2009WFP E2009WFP 
PowerCase
Seasonic G 550W Modular Fractal Design Core 3500 
CPUMotherboardGraphicsRAM
FX-6300, 4.7 GHZ@1.43V GA-970A-UD3P GTX 460 768MB Mixed DIMMs. 2x4GB + 2x8GB @ 1600-8-8-8 
Hard DriveHard DriveHard DriveHard Drive
Toshiba THNSNH 19nm 256GB 1TB Spinpoint F3 WD RE3 1TB WD RE3 1TB 
Optical DriveCoolingOSOS
yes CM Seidon 120V SolydK OpenSuse 13.1 
OSOSMonitorMonitor
Linux Mint 9-32 bit // Linux Mint 17-64 bit  Manjaro Xfce Samsung 21.5" HannsG 21.5" sideways! 
KeyboardPowerCaseMouse
Sticky ATNG Rosewill Green 630W NZXT Gamma Basic Microsoft corded 
CPUMotherboardGraphicsRAM
A10-6800k 4.8GHZ @ 1.375V, 1.2GHZ iGPU Gigabyte GA-F2A85XN-WIFI HD8670D Ripjaws 
Hard DriveOptical DriveCoolingOS
Seagate ST1000DM003 Asus BC-12B1ST/BLK/B/AS Zalman CNPS5X Linux Mint 15 
MonitorKeyboardPowerCase
LG IPS224V-PN Logitec K360 FSP 400W Aurum S 80+ gold Prodigy 
Mouse
logitec M235 
  hide details  
Reply
post #12 of 18
I second the Tline enclosure, that would be SIIICK. Such flat response, and next to none port turbulence. thumb.gif

otherwise good choices, TC Sounds are BEASTS! Gonna run a LMS in my Acura soon.
Simply Elegant
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.2GHz ASUS ROG Gene II Gigabyte GTX 480 Gskill Trident DDR3-2000 
Hard DriveCoolingOSMonitor
WD FALS 1TB 240 & 120 EK rads, EK Supreme HF, D5, EK Bay Spin Windows 7 x64 27" Asus LED 
KeyboardPowerCaseMouse
SteelSeries Merc Stealth BFG 1000W Custom Lian-Li A05B Razer Death Adder 3.5G 
Mouse PadAudio
X-Trac Ripper Vizio 5.0 Sound Bar and Onkyo 12'' Subwoofer 
  hide details  
Reply
Simply Elegant
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 950 4.2GHz ASUS ROG Gene II Gigabyte GTX 480 Gskill Trident DDR3-2000 
Hard DriveCoolingOSMonitor
WD FALS 1TB 240 & 120 EK rads, EK Supreme HF, D5, EK Bay Spin Windows 7 x64 27" Asus LED 
KeyboardPowerCaseMouse
SteelSeries Merc Stealth BFG 1000W Custom Lian-Li A05B Razer Death Adder 3.5G 
Mouse PadAudio
X-Trac Ripper Vizio 5.0 Sound Bar and Onkyo 12'' Subwoofer 
  hide details  
Reply
post #13 of 18
Quote:
Originally Posted by mdocod View Post

I suggest the crown over the behringer.
I warn that at high listening levels, there would likely be audible chuffing below ~35hz in the 20x20x20 box with 2x 3"x19" ports. A similarly sized or perhaps slightly larger (volume wise) tapped transmission line design would eliminate vent noise, reduce distortion, and improve maximum output. The driver is also well suited to 6th order boxes.
I could share some ideas and simulations if you are interested. What pass band do you need this sub to cover, and how large a box can you tolerate?
Regards,
Eric

Yeah, sure t-lines are great. As long as you don't mind having a refrigerator-sized subwoofer in your room....
The Dude Abides
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 620 @ 3.38 Ghz 1.360 vCore ASUS M3N72-D nForce 750a GTX 460 HAWK 930/1860/2200 @ 1.087v (+ 30 AUXv) Kingston DDR2 8500 4GB (2x 2GB) 5-5-5-18-2T 
Hard DriveOptical DriveOSMonitor
2x Barracuda 7200.12 1TB RAID 0 ASUS DRW-B1ST Windows 7 Ultimate 64 Bit LG W2040T 1600 x 900 
KeyboardPowerCaseMouse
Logitech K120 Corsair AX750 Corsair Obsidian 700D + 800D Side Panel Microsoft Optical/MX518 
Mouse Pad
Staples Brand $4.99 
  hide details  
Reply
The Dude Abides
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 620 @ 3.38 Ghz 1.360 vCore ASUS M3N72-D nForce 750a GTX 460 HAWK 930/1860/2200 @ 1.087v (+ 30 AUXv) Kingston DDR2 8500 4GB (2x 2GB) 5-5-5-18-2T 
Hard DriveOptical DriveOSMonitor
2x Barracuda 7200.12 1TB RAID 0 ASUS DRW-B1ST Windows 7 Ultimate 64 Bit LG W2040T 1600 x 900 
KeyboardPowerCaseMouse
Logitech K120 Corsair AX750 Corsair Obsidian 700D + 800D Side Panel Microsoft Optical/MX518 
Mouse Pad
Staples Brand $4.99 
  hide details  
Reply
post #14 of 18
Quote:
Originally Posted by Eugenester View Post

Yeah, sure t-lines are great. As long as you don't mind having a refrigerator-sized subwoofer in your room....

Uh... box size with Tlines and horns is not required to be large, there's a lot of room for flexibility there.

The proposed 20x20x20 is ~130 liters less port and driver displacement, a tapped T-line with similar volume is very doable.

Here's the current vented box idea charted at 600W input assuming 2pi space loading:
452
452
452
452

Here's a tapped transmission line with roughly the same box volume quickly slapped together, also charted at 600W 2pi space:
452
452
452
452

More work could be done to tweak the tapped T-line, this is a very quick example to show that a t-line is doable within the same box volume with good results and 1/10th the air velocity as the proposed vented box.
Edited by mdocod - 4/22/12 at 8:55pm
     
CPUMotherboardGraphicsRAM
FX-8350 990X EVO R2.0 Sparkle GTX460 768MB ballistix tactical 2 x 8GB 
Hard DriveHard DriveOptical DriveCooling
Toshiiba THNSNH 256GB Enterprise RE3 1TB Asus BD combo drive Artic A30 
OSMonitorMonitorMonitor
Manjaro Linux Samsung 21.5" LCD E2009WFP E2009WFP 
PowerCase
Seasonic G 550W Modular Fractal Design Core 3500 
CPUMotherboardGraphicsRAM
FX-6300, 4.7 GHZ@1.43V GA-970A-UD3P GTX 460 768MB Mixed DIMMs. 2x4GB + 2x8GB @ 1600-8-8-8 
Hard DriveHard DriveHard DriveHard Drive
Toshiba THNSNH 19nm 256GB 1TB Spinpoint F3 WD RE3 1TB WD RE3 1TB 
Optical DriveCoolingOSOS
yes CM Seidon 120V SolydK OpenSuse 13.1 
OSOSMonitorMonitor
Linux Mint 9-32 bit // Linux Mint 17-64 bit  Manjaro Xfce Samsung 21.5" HannsG 21.5" sideways! 
KeyboardPowerCaseMouse
Sticky ATNG Rosewill Green 630W NZXT Gamma Basic Microsoft corded 
CPUMotherboardGraphicsRAM
A10-6800k 4.8GHZ @ 1.375V, 1.2GHZ iGPU Gigabyte GA-F2A85XN-WIFI HD8670D Ripjaws 
Hard DriveOptical DriveCoolingOS
Seagate ST1000DM003 Asus BC-12B1ST/BLK/B/AS Zalman CNPS5X Linux Mint 15 
MonitorKeyboardPowerCase
LG IPS224V-PN Logitec K360 FSP 400W Aurum S 80+ gold Prodigy 
Mouse
logitec M235 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
FX-8350 990X EVO R2.0 Sparkle GTX460 768MB ballistix tactical 2 x 8GB 
Hard DriveHard DriveOptical DriveCooling
Toshiiba THNSNH 256GB Enterprise RE3 1TB Asus BD combo drive Artic A30 
OSMonitorMonitorMonitor
Manjaro Linux Samsung 21.5" LCD E2009WFP E2009WFP 
PowerCase
Seasonic G 550W Modular Fractal Design Core 3500 
CPUMotherboardGraphicsRAM
FX-6300, 4.7 GHZ@1.43V GA-970A-UD3P GTX 460 768MB Mixed DIMMs. 2x4GB + 2x8GB @ 1600-8-8-8 
Hard DriveHard DriveHard DriveHard Drive
Toshiba THNSNH 19nm 256GB 1TB Spinpoint F3 WD RE3 1TB WD RE3 1TB 
Optical DriveCoolingOSOS
yes CM Seidon 120V SolydK OpenSuse 13.1 
OSOSMonitorMonitor
Linux Mint 9-32 bit // Linux Mint 17-64 bit  Manjaro Xfce Samsung 21.5" HannsG 21.5" sideways! 
KeyboardPowerCaseMouse
Sticky ATNG Rosewill Green 630W NZXT Gamma Basic Microsoft corded 
CPUMotherboardGraphicsRAM
A10-6800k 4.8GHZ @ 1.375V, 1.2GHZ iGPU Gigabyte GA-F2A85XN-WIFI HD8670D Ripjaws 
Hard DriveOptical DriveCoolingOS
Seagate ST1000DM003 Asus BC-12B1ST/BLK/B/AS Zalman CNPS5X Linux Mint 15 
MonitorKeyboardPowerCase
LG IPS224V-PN Logitec K360 FSP 400W Aurum S 80+ gold Prodigy 
Mouse
logitec M235 
  hide details  
Reply
post #15 of 18
Wrong thread. Sorry guiz
WIP
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Z68 Extreme 3 Gen 3 EVGA GTX 460 2win G. Skill Sniper Low Voltage 8GB 1600mhz DDR3 
Hard DriveOptical DriveOSMonitor
Samsung Spinpoint F3 1TB 7200rpm Asus Combo Drive Windows 7 Ultimate 64-bit Asus VW246H 
PowerCase
Seasonic X-750 Corsair 600t White 
  hide details  
Reply
WIP
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Z68 Extreme 3 Gen 3 EVGA GTX 460 2win G. Skill Sniper Low Voltage 8GB 1600mhz DDR3 
Hard DriveOptical DriveOSMonitor
Samsung Spinpoint F3 1TB 7200rpm Asus Combo Drive Windows 7 Ultimate 64-bit Asus VW246H 
PowerCase
Seasonic X-750 Corsair 600t White 
  hide details  
Reply
post #16 of 18
Thread Starter 
Well Im looking to keep this as simple as possible. My first vented build. Im open to all suggestions, but the 20x20x20 external, is my max size on the box.
Craptop
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 Q740 M Intel HM55 GT425M 6GB 
Hard DriveOptical DriveOSMonitor
500GB BDROM/DVDRW 7 64bit LED Backlit 17inch 
Power
Baterry 
  hide details  
Reply
Craptop
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 Q740 M Intel HM55 GT425M 6GB 
Hard DriveOptical DriveOSMonitor
500GB BDROM/DVDRW 7 64bit LED Backlit 17inch 
Power
Baterry 
  hide details  
Reply
post #17 of 18
Hi vwgti,

The TC driver is going to require a heavily braced, heavy, reinforced and complex to build box regardless of whether you make it sealed, vented or transmission line or some blend of the bunch or whatever. In otherwords, whether you put all the extra material inside the box for bracing, or double up the function of that bracing as T-line walls or large slot port walls, you're going to have a relatively complicated box either way. These ultra long throw, high moving mass drivers require super structures to contain their fury.

Assuming the box must remain a 20x20x20 external cube and you want to try for a traditional vented for your first build, I'd suggest using a router to apply flared ends to a slot port design of at least 2" x the width of the box. The slot port would have to be folded a couple few times to achieve the desired tuning, and more of the box space would have to be used for the port and less for the "box volume," but it would be a good trade to achieve acceptably low air velocity. Alternatively, flared round ports, either 2x4" or 1x6" port, with added sweep elbows inside the box to achieve the necessary length.

Even with flares, a pair of 3" ports would hit ~25-30m/s peak air velocity at Xmax (~850W). Around 15m/s is generally considered acceptable, and sound quality oriented builds shoot for less than 10m/s in most cases. I don't think a pair of 3" ports is enough to carry the capabilities of this driver with grace regardless of how doctored up they are, however, that peak is at ~25hz, so if all of your content is above ~30hz, then it might not be a problem, for movies, the chuffing would probably be pretty noticeable if the sub were ever used for that.

Regards,
Eric
     
CPUMotherboardGraphicsRAM
FX-8350 990X EVO R2.0 Sparkle GTX460 768MB ballistix tactical 2 x 8GB 
Hard DriveHard DriveOptical DriveCooling
Toshiiba THNSNH 256GB Enterprise RE3 1TB Asus BD combo drive Artic A30 
OSMonitorMonitorMonitor
Manjaro Linux Samsung 21.5" LCD E2009WFP E2009WFP 
PowerCase
Seasonic G 550W Modular Fractal Design Core 3500 
CPUMotherboardGraphicsRAM
FX-6300, 4.7 GHZ@1.43V GA-970A-UD3P GTX 460 768MB Mixed DIMMs. 2x4GB + 2x8GB @ 1600-8-8-8 
Hard DriveHard DriveHard DriveHard Drive
Toshiba THNSNH 19nm 256GB 1TB Spinpoint F3 WD RE3 1TB WD RE3 1TB 
Optical DriveCoolingOSOS
yes CM Seidon 120V SolydK OpenSuse 13.1 
OSOSMonitorMonitor
Linux Mint 9-32 bit // Linux Mint 17-64 bit  Manjaro Xfce Samsung 21.5" HannsG 21.5" sideways! 
KeyboardPowerCaseMouse
Sticky ATNG Rosewill Green 630W NZXT Gamma Basic Microsoft corded 
CPUMotherboardGraphicsRAM
A10-6800k 4.8GHZ @ 1.375V, 1.2GHZ iGPU Gigabyte GA-F2A85XN-WIFI HD8670D Ripjaws 
Hard DriveOptical DriveCoolingOS
Seagate ST1000DM003 Asus BC-12B1ST/BLK/B/AS Zalman CNPS5X Linux Mint 15 
MonitorKeyboardPowerCase
LG IPS224V-PN Logitec K360 FSP 400W Aurum S 80+ gold Prodigy 
Mouse
logitec M235 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
FX-8350 990X EVO R2.0 Sparkle GTX460 768MB ballistix tactical 2 x 8GB 
Hard DriveHard DriveOptical DriveCooling
Toshiiba THNSNH 256GB Enterprise RE3 1TB Asus BD combo drive Artic A30 
OSMonitorMonitorMonitor
Manjaro Linux Samsung 21.5" LCD E2009WFP E2009WFP 
PowerCase
Seasonic G 550W Modular Fractal Design Core 3500 
CPUMotherboardGraphicsRAM
FX-6300, 4.7 GHZ@1.43V GA-970A-UD3P GTX 460 768MB Mixed DIMMs. 2x4GB + 2x8GB @ 1600-8-8-8 
Hard DriveHard DriveHard DriveHard Drive
Toshiba THNSNH 19nm 256GB 1TB Spinpoint F3 WD RE3 1TB WD RE3 1TB 
Optical DriveCoolingOSOS
yes CM Seidon 120V SolydK OpenSuse 13.1 
OSOSMonitorMonitor
Linux Mint 9-32 bit // Linux Mint 17-64 bit  Manjaro Xfce Samsung 21.5" HannsG 21.5" sideways! 
KeyboardPowerCaseMouse
Sticky ATNG Rosewill Green 630W NZXT Gamma Basic Microsoft corded 
CPUMotherboardGraphicsRAM
A10-6800k 4.8GHZ @ 1.375V, 1.2GHZ iGPU Gigabyte GA-F2A85XN-WIFI HD8670D Ripjaws 
Hard DriveOptical DriveCoolingOS
Seagate ST1000DM003 Asus BC-12B1ST/BLK/B/AS Zalman CNPS5X Linux Mint 15 
MonitorKeyboardPowerCase
LG IPS224V-PN Logitec K360 FSP 400W Aurum S 80+ gold Prodigy 
Mouse
logitec M235 
  hide details  
Reply
post #18 of 18
Thread Starter 
Thanks for the great input. The cube was preferred, but I could do a rectangle 17x17x40 max, if that opens up anything as far as a design.
Craptop
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 Q740 M Intel HM55 GT425M 6GB 
Hard DriveOptical DriveOSMonitor
500GB BDROM/DVDRW 7 64bit LED Backlit 17inch 
Power
Baterry 
  hide details  
Reply
Craptop
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 Q740 M Intel HM55 GT425M 6GB 
Hard DriveOptical DriveOSMonitor
500GB BDROM/DVDRW 7 64bit LED Backlit 17inch 
Power
Baterry 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Home Audio
Overclock.net › Forums › Consumer Electronics › Home Audio › Subwoofer Build