The ATOMIC SHOWDOWN...APX vs. Quantum
10-17-2004, 07:09 PM
#41
Originally posted by Haunz:
So long as the amp wasn't running out of current at .25ohm you will have a 3db gain in power over .5ohm...
In the real world this could translate to only a couple tenths of a db, but a gain of 1 or even 2 db wouldn't surprise me either....
So long as the amp wasn't running out of current at .25ohm you will have a 3db gain in power over .5ohm...
In the real world this could translate to only a couple tenths of a db, but a gain of 1 or even 2 db wouldn't surprise me either....
10-17-2004, 07:17 PM
#43
Originally posted by Father Yuli:
since when is this doublinig power and gaining 3db? u will NEVER gain that. u have to double power AND CONE AREA to gain 3 db's. i dont know what the heck buddy ment when he said u gain 3 db's in amplifier output, that makes no sense to me. BUT every time i DOUBLE POWR AND DOUBLE CONE AREA I gain EXACTLY 3db in my jeep. 147.6 with 1 12 and one D3, 150.6 with 2 12's and two D3's and 153.6 with 4 12's and 4 D3's. i have done this with my very own jeep on my very own meter. NOW PROVE ME WRONG.
PS. Assmaster can kiss my ***. i thnk i proved all the theories in here wrong b/c NO ONE mentioned doubling the cone area. HA
since when is this doublinig power and gaining 3db? u will NEVER gain that. u have to double power AND CONE AREA to gain 3 db's. i dont know what the heck buddy ment when he said u gain 3 db's in amplifier output, that makes no sense to me. BUT every time i DOUBLE POWR AND DOUBLE CONE AREA I gain EXACTLY 3db in my jeep. 147.6 with 1 12 and one D3, 150.6 with 2 12's and two D3's and 153.6 with 4 12's and 4 D3's. i have done this with my very own jeep on my very own meter. NOW PROVE ME WRONG.
PS. Assmaster can kiss my ***. i thnk i proved all the theories in here wrong b/c NO ONE mentioned doubling the cone area. HA
10-17-2004, 07:19 PM
#44
Originally posted by ChrisB:
that's all we were out to do.. see what made my car louder.. at this point we don't care why.. [img]smile.gif[/img]
yes - it was a lower impedance, therefor more power out of my amp.. [img]smile.gif[/img] but how much more? who knows [img]smile.gif[/img]
I wish I had my dual 1 ohm quantums, but they didnt come.. so for now we'll have to settle for this [img]smile.gif[/img]
SO THERE [img]tongue.gif[/img] [img]tongue.gif[/img] [img]tongue.gif[/img]
lol
that's all we were out to do.. see what made my car louder.. at this point we don't care why.. [img]smile.gif[/img]
yes - it was a lower impedance, therefor more power out of my amp.. [img]smile.gif[/img] but how much more? who knows [img]smile.gif[/img]
I wish I had my dual 1 ohm quantums, but they didnt come.. so for now we'll have to settle for this [img]smile.gif[/img]
SO THERE [img]tongue.gif[/img] [img]tongue.gif[/img] [img]tongue.gif[/img]
lol
10-17-2004, 07:28 PM
#46
Originally posted by MTA:
come by the shop bring both sets of subs..I have a current clamp and a true RMS volt meter we can test it if you like to know for reference
come by the shop bring both sets of subs..I have a current clamp and a true RMS volt meter we can test it if you like to know for reference
besides i only have 1 set of subs right now [img]smile.gif[/img]
10-17-2004, 07:34 PM
#47
Originally posted by MTA:
Yuli he is right...go back to school... if you really want to know your amplifier gain in decibels then use the formula I have writen below, subs or amps can be figured out in decibels...but this is a only in theory, not real world. but is usefull to aproximate lets say you bought an amp that is hmmm a D3 and puts out 3000WATTS RMS...and you want to see how much you will gain from your old amp without using an SPL meter of sorts...and your old amp was only 1500 WATTS RMS ... to calculate the DB gain find the ratio of new amp VS old amp
10log((NEW AMP)/(OLD AMP))= 10log(3000/1500) =10log(2) = 3 which is the answer in decibels
try it some time and see if it actually works for you
Yuli he is right...go back to school... if you really want to know your amplifier gain in decibels then use the formula I have writen below, subs or amps can be figured out in decibels...but this is a only in theory, not real world. but is usefull to aproximate lets say you bought an amp that is hmmm a D3 and puts out 3000WATTS RMS...and you want to see how much you will gain from your old amp without using an SPL meter of sorts...and your old amp was only 1500 WATTS RMS ... to calculate the DB gain find the ratio of new amp VS old amp
10log((NEW AMP)/(OLD AMP))= 10log(3000/1500) =10log(2) = 3 which is the answer in decibels
try it some time and see if it actually works for you
10-17-2004, 07:38 PM
#49
Originally posted by Father Yuli:
since when is this doublinig power and gaining 3db? u will NEVER gain that. u have to double power AND CONE AREA to gain 3 db's. i dont know what the heck buddy ment when he said u gain 3 db's in amplifier output, that makes no sense to me. BUT every time i DOUBLE POWR AND DOUBLE CONE AREA I gain EXACTLY 3db in my jeep. 147.6 with 1 12 and one D3, 150.6 with 2 12's and two D3's and 153.6 with 4 12's and 4 D3's. i have done this with my very own jeep on my very own meter. NOW PROVE ME WRONG.
PS. Assmaster can kiss my ***. i thnk i proved all the theories in here wrong b/c NO ONE mentioned doubling the cone area. HA
since when is this doublinig power and gaining 3db? u will NEVER gain that. u have to double power AND CONE AREA to gain 3 db's. i dont know what the heck buddy ment when he said u gain 3 db's in amplifier output, that makes no sense to me. BUT every time i DOUBLE POWR AND DOUBLE CONE AREA I gain EXACTLY 3db in my jeep. 147.6 with 1 12 and one D3, 150.6 with 2 12's and two D3's and 153.6 with 4 12's and 4 D3's. i have done this with my very own jeep on my very own meter. NOW PROVE ME WRONG.
PS. Assmaster can kiss my ***. i thnk i proved all the theories in here wrong b/c NO ONE mentioned doubling the cone area. HA
[ October 17, 2004, 08:41 PM: Message edited by: MTA ]
