Born_Again Posted July 15, 2012 Report Share Posted July 15, 2012 (edited) I'm doing some research and I'm interested in some numbers I'm not finding on your website. Can you tell me the efficiency and THD of the 9k, 7.5k, 5k @ 2 ohm and 1 ohm? Also, what's the efficiency of the 175.4 @ 4 ohms? Thanks. ETA: One more question, lets say the amp is being driven by a pure 50hz frequency. Is the output of the amp also a sine wave? Edited July 15, 2012 by Born_Again Quote Link to comment Share on other sites More sharing options...
HunterJohnson Posted July 15, 2012 Report Share Posted July 15, 2012 Efficientcy will decrease as ohms decrease. Dc has theirs posted up usually 90% at 4ohms so it'll go down at 2 and 1. Btw it's very hard to calculate this bc of ur voltage and all the electrical shit behind it. Anyways imma guess it's around 70% efficient at 1ohm at 13V Quote Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
Born_Again Posted July 15, 2012 Author Report Share Posted July 15, 2012 If DC does an efficiency test at four ohms, It only makes sense that they'd also do a few others at the ohms most people run their amps. DC, do you have any official efficiency numbers at two and one ohm? Quote Link to comment Share on other sites More sharing options...
CJ18 Posted July 15, 2012 Report Share Posted July 15, 2012 If its not on the site then they are not available. Those are most likely the numbers provided by the factory when they test them. Quote Link to comment Share on other sites More sharing options...
AMI CUSTOMS Posted July 16, 2012 Report Share Posted July 16, 2012 Depending on gain setting, if sine wave in, then sine wave out, just amplified, whole purpose of an amp in the first place lol. Quote TEAM SOUNDQUBED -- TEAM SOUTH TEAM S.O.B. - Founder & Captain 3x Streetbeat World Record Holder 2017 MWSPL 1st place Mayhem & 4th Xtreme 4 2016 MWSPL 1st place Mayhem/2nd Adv 4/2nd Xtreme 4 2015 MWSPL 2nd place Mayhem & 4th Xtreme 4 2014 USACI 2nd place Streetbeat 5 - 162.6 db 2014 MWSPL 2nd place Xtreme 4 - 144.9 db 2013 USACI 1st place Streetbeat 4 - 161.9 db 2013 USACI 1st place Street Q+ - 162.8 db 2013 MWSPL 3rd Kaos2 & 4th Xtreme 4 2011 USACI 2nd place MOD 1001-2k - 160.0 db 2011 MWSPL 4th place: Adv3 - 157.8 db, Kaos2 - 150s db, Xtreme4 - 140s db 2010 ARSPL 1st place 501-750 - 160.3 db Arkansas loudest Best score to date 164.4 db - Termlab Outlaw Streetbeat 4 - 161.9 db Streetbeat 5 - 162.6 db MWSPL on Dash Legal door open (Music) - 162.5 db Sealed on dash Legal (Music) - 161.1 db - Termlab THE BLACK NASTY CURRENT BUILD & FAB The Black Nasty (6) 15 Rebuild Log 2012 (4) 15 Walled Sierra Build Log Evo X build log Facebook page The Black Nasty Link to comment Share on other sites More sharing options...
andale927 Posted July 16, 2012 Report Share Posted July 16, 2012 Declaring efficiency at 1 Ohm is taboo Quote Link to comment Share on other sites More sharing options...
RAM5493 Posted July 19, 2012 Report Share Posted July 19, 2012 Declaring efficiency at 1 Ohm is taboo Rockford does it for their power series amps. Quote Link to comment Share on other sites More sharing options...
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