IKnowImLost224 Posted March 24, 2012 Report Posted March 24, 2012 What can you learn from the subs specs? Can you tell if it's more of a sq/spl sub? What can help determine a all around sub compared to one thats strictly spl for example? This may be a dumb question or may not even be possible but there are sub specs that I look at and have no idea what they mean. These are a few I am curious about and are taken from my RE XXX 15". Force Factor -Bl: 18.16 Electrical Q Value -Qes: 0.58 Mechanical Q Value -Qms: 3.62 Total Speaker Q Value -Qts: .501 Free Air Resonance -Fs: 19.10 Hz Equivalent Compliance -Vas: 207.0 liters One-Way, Linear Excursion -Xmax: 54 mm Efficiency - SPL 1W/1m: 85.81 dB SPL Effective Piston Area -Sd: 810 cm^2 Quote
Joe X Posted March 24, 2012 Report Posted March 24, 2012 Here are some infos: http://www.the12volt.com/caraudio/thiele.asp Quote
IKnowImLost224 Posted March 24, 2012 Author Report Posted March 24, 2012 Cool thanks man I'll def check it out when I get to a computer Quote
neuspeedescort Posted March 24, 2012 Report Posted March 24, 2012 54mm one way xmax! am i reading that wrong? that is over 4 inches of total throw i do not believe that. NEUMAN Quote
mbdblue Posted March 24, 2012 Report Posted March 24, 2012 neofrog's thread- http://www.stevemeadedesigns.com/board/topic/83029-everything-you-need-to-know-about-car-audio/page__fromsearch__1 Quote AA-Atomic-Clif Designs-DC-Diamond-Digital Designs-Directed-Eclipse-Fi-Hertz-Hifonics-Kenwood-Memphis-Phoenix Gold-Pioneer-PPI-PSi-Stinger-Sundown-TC Sounds-Viper-Zapco
IKnowImLost224 Posted March 24, 2012 Author Report Posted March 24, 2012 neofrog's thread- http://www.stevemeadedesigns.com/board/topic/83029-everything-you-need-to-know-about-car-audio/page__fromsearch__1 Awesome man! Lots of good info there! Quote
Robby Holmes Posted March 26, 2012 Report Posted March 26, 2012 54mm one way xmax! am i reading that wrong? that is over 4 inches of total throw i do not believe that. NEUMAN No you read that correctly. Ive had 3 of the XXX12D2's. They flex a MASSIVE amount. by the way o/p, XXX woofers are SQL not SPL Quote '08 Chevy Cobalt coupe 2.2 base model trunk build: 2 9512iSC flatwound alum 1.5 coils -extra 9500 spider pack -8" platinum carbon dustcaps 1 DD Z1 (.375ohm nominally daily) 3g31 AGM 320a Ohio Gen alt 1 DD S4 4 channel 4 VO-M8v1's (holes cut for 3rd pair) 2 CS 6.5's 2 VO-B1's Sony XAV-601BT all Knu Krystal RCA's Cadence 7band EQ ______________________ 148.3db @ 32hz (burp) 148.4 @ 37 & 38hz (burp) 146.xdb 90sec average (center windshield)
IKnowImLost224 Posted March 26, 2012 Author Report Posted March 26, 2012 54mm one way xmax! am i reading that wrong? that is over 4 inches of total throw i do not believe that. NEUMAN No you read that correctly. Ive had 3 of the XXX12D2's. They flex a MASSIVE amount. by the way o/p, XXX woofers are SQL not SPL Ty sir, did not know that. I feel like the sub gets loud but only on certain songs. Coulda been the way I made the box too though Quote
Robby Holmes Posted March 26, 2012 Report Posted March 26, 2012 54mm one way xmax! am i reading that wrong? that is over 4 inches of total throw i do not believe that. NEUMAN No you read that correctly. Ive had 3 of the XXX12D2's. They flex a MASSIVE amount. by the way o/p, XXX woofers are SQL not SPL Ty sir, did not know that. I feel like the sub gets loud but only on certain songs. Coulda been the way I made the box too though it does get very loud especially for an SQL speaker From my experience with them, the 12's like ~4^3ft before displacement, and need at least a 4" wide port to breathe properly. My box was tuned to 32.9hz, at loved frequencies in the range of 25-40hz, but would redoing to 70hz and less. goodluck with yours I blew my last XXX out this afternoon, and am now woofer-less :'( Let me know if you need any more info on the XXX series Quote '08 Chevy Cobalt coupe 2.2 base model trunk build: 2 9512iSC flatwound alum 1.5 coils -extra 9500 spider pack -8" platinum carbon dustcaps 1 DD Z1 (.375ohm nominally daily) 3g31 AGM 320a Ohio Gen alt 1 DD S4 4 channel 4 VO-M8v1's (holes cut for 3rd pair) 2 CS 6.5's 2 VO-B1's Sony XAV-601BT all Knu Krystal RCA's Cadence 7band EQ ______________________ 148.3db @ 32hz (burp) 148.4 @ 37 & 38hz (burp) 146.xdb 90sec average (center windshield)
neuspeedescort Posted March 26, 2012 Report Posted March 26, 2012 54mm one way xmax! am i reading that wrong? that is over 4 inches of total throw i do not believe that. NEUMAN No you read that correctly. Ive had 3 of the XXX12D2's. They flex a MASSIVE amount. by the way o/p, XXX woofers are SQL not SPL WOW. i will have to look in to them a bit. NEUMAN Quote
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