Sub project

Toxis · 11-25-2005, 02:28 AM

I'm looking to build a dual 8" home sub. I'll be using a 2ch Rotel amp (bridgable) to run it and still am looking into crossover options. What I want to know is if anyone here has any experience with Tang Band drivers. Partsexpress has THESE subs on sale right now so I'm thinking of picking up a pair. It's either those or THESE. I have a friend who has the ones from eBay (SpeakerCraft is the manufacturer turns out) and they sound really impressive. I'm not terribly worried about how low they go because I'm going to be using this for my DJ setup in the basement and I'm going more for output and abuse without dumping a lot of money into the project. Plus, they need to keep up with my Klipsch RB-35's in output so they need to get pretty loud.

Also, does anyone have a box building program to let me know how much airspace the TB drivers need? I'd appreciate it!

phoneisbusy · 11-26-2005, 04:51 PM

I think you're better off with the Tangbands. I think shipping is free with PE until Jan so you can save some money there. Without any T/S specs, you'd be guessing at the size of your enclousures.
I think if you google for WinISD or unibox, you can find a download site for them.

Check out diysubwoofers.org. Some nice discussion about your options.

Good luck

Dave

unc2701 · 11-28-2005, 11:47 AM

Those Tang Band drivers are 84 db efficient... that's gonna take some pushing to work with 96 db efficient Klipsch's. They'll max out at ~105 db, whereas the klipsch's will go to ~117 db.

Toxis · 12-22-2005, 03:10 AM

A friend shot down an idea I had the other day but wanted to see if any of you might think differently. I was considering building a sub with a passive radiator instead of a port but fire both straight out. He told me the phase wouldn't work but how is that any different than say the SDA's? Then I started thinking about it and couldn't think of any subs other than the Ovature 1812 that has a PR out front along with the driver (but even it's PR is a different size). Thoughts??

amulford · 12-22-2005, 04:55 AM

He's right about the phase. If you want to go PR, put it on a different side.

gatemplin · 12-22-2005, 12:41 PM

Quote:

Originally Posted by Toxis

He told me the phase wouldn't work but how is that any different than say the SDA's? Thoughts??

It's not any different. A PR is almost the same as a ported enclosure, except you are using the mass of the radiator instead of the mass of air in the port. They just work better in small enclosures. It doesn't matter which side you put it on.

The only difference with a PR and a BR design is faster rolloff below Fb, and higher group delay.

PolkThug · 12-22-2005, 12:54 PM

I've had 8" car sub boxes with the speaker and the PR both facing forward.

unc2701 · 12-22-2005, 01:53 PM

Unrelated, but the 500watt PE plate amp is $70 off until 5pm today

http://www.partsexpress.com/pe/pshow...06&dotd=122105

11-25-2005, 02:28 AM	#1
Toxis Polk Expert Member Sales Rating: (12) Join Date: Jun 2004 Location: Kansas City Posts: 4,193	Sub project I'm looking to build a dual 8" home sub. I'll be using a 2ch Rotel amp (bridgable) to run it and still am looking into crossover options. What I want to know is if anyone here has any experience with Tang Band drivers. Partsexpress has THESE subs on sale right now so I'm thinking of picking up a pair. It's either those or THESE. I have a friend who has the ones from eBay (SpeakerCraft is the manufacturer turns out) and they sound really impressive. I'm not terribly worried about how low they go because I'm going to be using this for my DJ setup in the basement and I'm going more for output and abuse without dumping a lot of money into the project. Plus, they need to keep up with my Klipsch RB-35's in output so they need to get pretty loud. Also, does anyone have a box building program to let me know how much airspace the TB drivers need? I'd appreciate it! __________________ Never kick a fresh turd on a hot day. Home Setup: Panasonic AE1000U Projo, 92" Stewart Firehawk, Denon 3805 (pre/pro), PS3, Denon DVD-2910, Myryad MA-500 5ch amp, LSi9x2 (Front and Rear), LSiC, Sunfire Super Junior Subwoofer, Sanus UF26 & NF36 Stands, and most wires by Cobalt. Car Setup: OEM Radio, RF 360.2v2, Polk SR6500 quad amped off 4 Xtant 1.1 100w mono amps, Xtant 6.1 to run a JL 10w6v2 in a Stealthbox, all Stinger wiring and Raammat deadener. Done!! Time to tune...

11-26-2005, 04:51 PM	#2
phoneisbusy Polkazoid Member Sales Rating: (5) Join Date: Jun 2002 Location: Vancouver, Canada Posts: 858	I think you're better off with the Tangbands. I think shipping is free with PE until Jan so you can save some money there. Without any T/S specs, you'd be guessing at the size of your enclousures. I think if you google for WinISD or unibox, you can find a download site for them. Check out diysubwoofers.org. Some nice discussion about your options. Good luck Dave __________________ Time is the best teacher. Unfortunately it kills all its students.

11-28-2005, 11:47 AM	#3
unc2701 Polkologist Member Sales Rating: (4) Join Date: Feb 2005 Posts: 2,829	Those Tang Band drivers are 84 db efficient... that's gonna take some pushing to work with 96 db efficient Klipsch's. They'll max out at ~105 db, whereas the klipsch's will go to ~117 db. __________________ Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19 Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565 Jordan JX92s : MF X-T100 : Xray v8 Backburner:Krell KAV-300i

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12-22-2005, 03:10 AM	#4
Toxis Polk Expert Member Sales Rating: (12) Join Date: Jun 2004 Location: Kansas City Posts: 4,193	A friend shot down an idea I had the other day but wanted to see if any of you might think differently. I was considering building a sub with a passive radiator instead of a port but fire both straight out. He told me the phase wouldn't work but how is that any different than say the SDA's? Then I started thinking about it and couldn't think of any subs other than the Ovature 1812 that has a PR out front along with the driver (but even it's PR is a different size). Thoughts??

12-22-2005, 12:54 PM	#7
PolkThug Polk Guru Member Sales Rating: (2) Join Date: Sep 2003 Location: Kansas Posts: 7,554	I've had 8" car sub boxes with the speaker and the PR both facing forward.

12-22-2005, 01:53 PM	#8
unc2701 Polkologist Member Sales Rating: (4) Join Date: Feb 2005 Posts: 2,829	Unrelated, but the 500watt PE plate amp is $70 off until 5pm today http://www.partsexpress.com/pe/pshow...06&dotd=122105

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