What to look for in sub's T/S specs?
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Silver Member Username: Jprix82Post Number: 528 Registered: Jan-06 | What to look for in sub's T/S specs to see if its a good sub? |
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Silver Member Username: Jprix82Post Number: 529 Registered: Jan-06 | Is it better for a sub to have a higher or lower Fs? |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3024 Registered: Aug-05 | the lower it is the more mechanically inlcined to a sealed enclosure ti is. here is an old thread i kept around....read it.  Follow the Rabbit Hole |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3026 Registered: Aug-05 | Posted on Thursday, October 13, 2005 - 08:38 pm: Low Qts means loose suspension, low moving mass, or really strong motor. High Qts means tight suspension, high moving mass, or weaker motor. Low Fs is from a loose suspension or a heavy cone (think about mass hung on a spring) --------------------------------------------------------------- Posted on Friday, October 14, 2005 - 06:06 pm: the motor strength or BL of the driver reflects how much control the magnet/motor structore of the sub exerts on the moving mass. it's a trade off. generally the more control the motor has, the more accurate or controlled the speaker is going to be, but the less efficient it'll be, too. a strong BL is good for SQ but not so good for SPL. There are other factors affected as well but that gives you an idea. |
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Silver Member Username: Jprix82Post Number: 530 Registered: Jan-06 | What would be considered high qts,fs and what would be considered low qts,fs? |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3029 Registered: Aug-05 | i am guessing low is .000 -.300 middle is .300 - .600 high is .600 - .900 + anything below 35hz is pretty low on the Fs |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3030 Registered: Aug-05 | but the Fs can get very low for EXAMPLE(i know there are lower)...there are subs with Fs or like 27hz....which would mean it is designed for sealed enlcosures....which means a sealed enclosure would be better for its loose suspension or heavy cone to support it more with pressure while it plays. |
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Silver Member Username: Jprix82Post Number: 531 Registered: Jan-06 | So subs with middle to high QTS are mostly designed for spl? And FS means whether a sub can play in a sealed or vented enclosure right? |
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Silver Member Username: Sw9152Michigan Post Number: 442 Registered: Feb-06 | my sub has a fs of 22 Hz, does that mean i should not be using a ported enclosure? http://www.eclipse-web.com/sw9100/sw9152.html |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3032 Registered: Aug-05 | that doesn't mean a sub can not be used in a ported enclosure....it just means that it will have a flatter response...i think. |
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Silver Member Username: Sw9152Michigan Post Number: 446 Registered: Feb-06 | it would still be louder in a ported enclosure right? |
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Gold Member Username: James1115Ct Post Number: 5722 Registered: Dec-04 | your eclipse is designed to be optimal in a small sealed enclosure with it's qts being relatively low at .39. That doesnt mean you can't port it though. |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3033 Registered: Aug-05 | THANK YOU!!!! i do not have all the answers....just some and when it comes down to electrical science of subwoofers......like a moose in the dark..lol |
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Silver Member Username: Jprix82Post Number: 532 Registered: Jan-06 | So subs with middle to high QTS are mostly designed for spl? |
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Silver Member Username: Sw9152Michigan Post Number: 451 Registered: Feb-06 | thanks i was just wondering if it would be worth it to build a sealed enclosure. |
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Gold Member Username: James1115Ct Post Number: 5724 Registered: Dec-04 | well a sub with a high qts has a very tight suspension and weak motor strength therefore having a low BL which would make it more suitable for a ported enclosure for a SPL application. Mid to low QTS is where you get your SQL drivers, for ex the eclipse TI QTS .39, ID max QTS .34, and JL 12w6v2 QTS .45. They are designed for small sealed enclosures and low tuned ported enclosures. |
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Gold Member Username: James1115Ct Post Number: 5725 Registered: Dec-04 | the lower the QTS the more loose the suspension as muddy stated above. This leads to more XMAX which is only a factor in a sealed enclosure (because in a vented enclosure you will never reach x-max) unless played below tuning therfor bottomiong out your sub. |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3034 Registered: Aug-05 | my DD has a QTS of .36 i have a ported enclosure. which means i havea strong motor....i love SQ. lol |
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Gold Member Username: James1115Ct Post Number: 5729 Registered: Dec-04 | lol yeah you have a SWWWWWWEEEEEEEEEETTTTTT sub! punk!lol |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3035 Registered: Aug-05 | HAHAHAHAHAHAHAHA this stuff makes my head spin. lol |
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Silver Member Username: Matt12490Benicia, California USA Post Number: 768 Registered: May-05 | what model DD you have muddy? |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3040 Registered: Aug-05 | 2500 |
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Silver Member Username: Jprix82Post Number: 533 Registered: Jan-06 | Anybody got a price list for DD? |
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Gold Member Username: James1115Ct Post Number: 5749 Registered: Dec-04 | zac davis does. |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3041 Registered: Aug-05 | they used ot have it on their website..... maybe JAke would be kind enough to make one for us  |
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Gold Member Username: Basshead86Slowcala, FL The one that... Post Number: 3042 Registered: Aug-05 | my bad.....Zac. lol |
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