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I am pretyt sure displacement is not just the physical sub. it is affected by xmax and maybe a couple other things too.

Are you confusing displacement with Vas?

Maybe someone else is, why else would the displacement of the z be almost the same as the sa considering the size difference?

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I'll contact sundown directly tomorrow morning if by some grace they dont swing in here beforehand for a legit spec sheet then. The box i recieved mine in didn't have any spec sheets or anything unfortunately

it will be braced and double baffled, as well as physically bolted to the chassis as was my last box.

Edited by jimmydamoose
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All I can say is call sundown lol. Guess we're beating a dead horse..

2000 Chevrolet Tahoe Limited (Mine)HEAD UNIT: Pioneer AVH-X5500BHSBASS DRIVER: Sundown Audio [email protected] dailySUBWOOFER: (4) Sundown Audio Zv4 18d1BOX: under constructionMID/HI DRIVER(s): JBL PX300.4, Powerbass ASA600.4, Audiopipe 6002, American Bass SQ50FRONT DECK: Pioneer TS Pro 6.5, Power Acoustic nb-1, (4) American Bass SQ4.0 KICK PANEL: Kicker KS65 components REAR DECK: Powerbass XL Pro 6.5, Pioneer TS Pro 8's, Power Acoustic nb-2, Powerbass s412 4x10, (2) Crescendo pwx 10"ELECTRICAL: Big 3, all KNU & AP OFC 0awg on 240amp Mechman Alt, Audiopipe batt meter, (2) Scorpin batt metersBATTERIES: (3) XS Power 3400's, KInetic HC1800, Kinetic HC2000MISC: Fat Mat on all doors, Old setup: (4) SA15d4's on an NS1 151.0 on TL sealed 2010 Honda Civic LX (Wife's) 142.1 TL sealed trunkHEAD UNIT: Pioneer AVH-X7500BHS with Massive Audio EQ7BASS DRIVER: (2) Powerbass ASA1500.1d's(strapped) 3240w clamped @ 10.8v lol(stock alt)SUBWOOFERS: (1) Sundown Audio Zv4 12d2BOX: Custom built by me 3ft^3 @ 35hzMID/HI DRIVER: Powerbass ASA600.4FRONT DOORS: Alpine Sps610cREAR DOORS: Alpine Sps610cELECTRICAL: All Audiopipe 0awg, Big 3, Stinger batt meter, stock 90amp alt<p>BATTERIES: (2) Kinetic HC1400's, XS Power XP950

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You cant tell me there is .01 cuft of difference in these two subs. lol

CIMG6664.JPG

SA-12-03lg.png

Stands to reason there is more to speaker displacement than physical dimensions, or something else is going on.

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Do you or have you owned either one?? Did you not see the email attachment?? I think people that make them would know.

2000 Chevrolet Tahoe Limited (Mine)HEAD UNIT: Pioneer AVH-X5500BHSBASS DRIVER: Sundown Audio [email protected] dailySUBWOOFER: (4) Sundown Audio Zv4 18d1BOX: under constructionMID/HI DRIVER(s): JBL PX300.4, Powerbass ASA600.4, Audiopipe 6002, American Bass SQ50FRONT DECK: Pioneer TS Pro 6.5, Power Acoustic nb-1, (4) American Bass SQ4.0 KICK PANEL: Kicker KS65 components REAR DECK: Powerbass XL Pro 6.5, Pioneer TS Pro 8's, Power Acoustic nb-2, Powerbass s412 4x10, (2) Crescendo pwx 10"ELECTRICAL: Big 3, all KNU & AP OFC 0awg on 240amp Mechman Alt, Audiopipe batt meter, (2) Scorpin batt metersBATTERIES: (3) XS Power 3400's, KInetic HC1800, Kinetic HC2000MISC: Fat Mat on all doors, Old setup: (4) SA15d4's on an NS1 151.0 on TL sealed 2010 Honda Civic LX (Wife's) 142.1 TL sealed trunkHEAD UNIT: Pioneer AVH-X7500BHS with Massive Audio EQ7BASS DRIVER: (2) Powerbass ASA1500.1d's(strapped) 3240w clamped @ 10.8v lol(stock alt)SUBWOOFERS: (1) Sundown Audio Zv4 12d2BOX: Custom built by me 3ft^3 @ 35hzMID/HI DRIVER: Powerbass ASA600.4FRONT DOORS: Alpine Sps610cREAR DOORS: Alpine Sps610cELECTRICAL: All Audiopipe 0awg, Big 3, Stinger batt meter, stock 90amp alt<p>BATTERIES: (2) Kinetic HC1400's, XS Power XP950

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Do you or have you owned either one?? Did you not see the email attachment?? I think people that make them would know.

i have never owned a sundown sub in my life

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Also, i am not arguing that their specs are right, i am saying people's idea of what speaker displacement is, is wrong. There is more to it than just metal and magnets. Feel me?

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