AQ 2200D tested!

i think it has more so to do with the power factor. the closer you get back to your nominal load, the more accurate the calculation is going to be. the farther you get away from it, the more "apparent power" you will have, instead of actual power. the subsonic will affect it, but id like to see it turned off to see if it really is.
i think the first test figures a little inflated for this very reason.

immacomputer can probably explain this better than me.

meh maybe, but until somebody comes up with a better way of mesuring power in a car atomosphere we can deal with it being a few hundred watts off.

 
meh maybe, but until somebody comes up with a better way of mesuring power in a car atomosphere we can deal with it being a few hundred watts off.
i dont have a problem with the current way of testing. im just saying that i will more readily trust a figure with a 1 ohm rise than a 3 ohm (hence why im trusting the test with the 2 ohm figure a lot more) //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 
i dont have a problem with the current way of testing. im just saying that i will more readily trust a figure with a 1 ohm rise than a 3 ohm (hence why im trusting the test with the 2 ohm figure a lot more) //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
got ya, but in reality how much off could the 1st figure be, serious question as I have never did any research on " apparent power"

 
i think it has more so to do with the power factor. the closer you get back to your nominal load, the more accurate the calculation is going to be. the farther you get away from it, the more "apparent power" you will have, instead of actual power. the subsonic will affect it, but id like to see it turned off to see if it really is.
i think the first test figures a little inflated for this very reason.

immacomputer can probably explain this better than me.
I don't need an explanation. I've had plenty of classes covering AC power. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

The subsonic can't be turned off on this amp, or I would shut it off to show the difference. Every amp I have tested that you could shut it off gains a fair amount down in the 30 hz range with it shut off, thus the reason for my statement. Yes the phase angle plays a part too, but the subsonic plays as big or bigger part.

 
got ya, but in reality how much off could the 1st figure be, serious question as I have never did any research on " apparent power"
i will search and post back as soon as i find what im looking for. immacomputer did some explaining about it.

edit: heres a good post http://www.caraudio.com/forum/showpost.php?p=2489417&postcount=108 which talks about the "power triangle"

and from immacomputer http://www.caraudio.com/forum/showpost.php?p=2488852&postcount=99 . this link relates to tommyk's test on a sundown 1500d (http://www.caraudio.com/forum/showthread.php?t=198421&highlight=power+factor) . tommyk's testing showed about 1100w. immacomputer says its closer to about 400w real watts with the 1100 being the "apparent power" figure.

 
True Power = sqrt((VA)^2 - (VAR)^2)

VAR = VA X sine (phase angle)

True Power = VA X cosine (phase angle)

Large phase angles will reduce the true power drastically. I generally don't get that concerned about it for car audio amp testing. Obviously it's doing a fair amount of power at 1 ohm nominal for a single 12 to be knocking on a 146 in a big SUV.

 
I don't need an explanation. I've had plenty of classes covering AC power. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
The subsonic can't be turned off on this amp, or I would shut it off to show the difference. Every amp I have tested that you could shut it off gains a fair amount down in the 30 hz range with it shut off, thus the reason for my statement. Yes the phase angle plays a part too, but the subsonic plays as big or bigger part.
i missed this post somehow. probably when i was editing.

but anyways, im not trying to offend you or anything. in fact i wouldnt consider the power factor thing such a huge deal in a thread like this. i think it is a MUCH bigger deal in the "kicker vs ia vs orion" thread, where people tried to say the zx2500.1 was doing 1500+ watts real power with an impedance rise of 8.9 ohms //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif and everyone ate it up.

just giving people something to think about. i think this amps looks to be a **** good deal, and when i was looking at it on the AQ site last night, i think having such a small footprint will let even more people enjoy a power amp, that doesn't take up a **** ton of room in the car.

im sure other people (as well as i) appreciate you even taking the time to test and post info on this amp //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 
Part 1:
I used one of my old HD3 12's with dual 2 coils. Amp running at 1 ohm nominal. The is the same box I used to test the AQ1200 and the HD3c's when they came out.

VAC: 66.2V

CAC:16.52A

Apparent power: 1093.624 watts

Reactive Impedance: 4.007 ohms

TL score: 143.8 legal dash

Compared to rated power: 1093.624/750 = 1.458 or 45.8% over rated power!

Part 2 comming soon
OK, is the 1093.624 at 1 ohm or 4??? Confused

 
1 ohm is nominal, but anytime a speaker is played it has something called impedence rise which raises the resistance the amp sees. Keep your impedence rise low and you get more power; however stiffer boxes usually have better spl, but more rise. Its a give take kinda thing that you really have little to no control over

 
Part 1:
I used one of my old HD3 12's with dual 2 coils. Amp running at 1 ohm nominal. The is the same box I used to test the AQ1200 and the HD3c's when they came out.

VAC: 66.2V

CAC:16.52A

Apparent power: 1093.624 watts

Reactive Impedance: 4.007 ohms

TL score: 143.8 legal dash

Compared to rated power: 1093.624/750 = 1.458 or 45.8% over rated power!

Part 2 comming soon
I need to buy you a beer. Thanks.

 
its is WIRED to 1 ohm. it ROSE up to 4 ohms at that particular frequency //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
1 ohm is nominal, but anytime a speaker is played it has something called impedence rise which raises the resistance the amp sees. Keep your impedence rise low and you get more power; however stiffer boxes usually have better spl, but more rise. Its a give take kinda thing that you really have little to no control over
WoW! Is this what everyone keeps calling "Box rise" or is that something different? I didn't know this was possible. I thought once you wired down to 1 ohm you were at 1 ohm..How do I keep from having this impedance rise? I dont want it..yuck... How ever I DO want this amp....BAD..Thanks by the way for your quick responses and thanks for posting the results of this test man..you guys rock!

 
WoW! Is this what everyone keeps calling "Box rise" or is that something different? I didn't know this was possible. I thought once you wired down to 1 ohm you were at 1 ohm..How do I keep from having this impedance rise? I dont want it..yuck... How ever I DO want this amp....BAD..Thanks by the way for your quick responses and thanks for posting the results of this test man..you guys rock!
Impedance rise is unavoidable. A coil moving in a magnetic field is going to have a lot of inductance. Inductance causes a change in impedance. Even without a box or a car, you still get some "impedance rise" because of this.

It's really not something you need to worry about. Just hook the amp up a 1 ohm like it's recommended, and you will have plenty of power.

 
Impedance rise is unavoidable. A coil moving in a magnetic field is going to have a lot of inductance. Inductance causes a change in impedance. Even without a box or a car, you still get some "impedance rise" because of this.
It's really not something you need to worry about. Just hook the amp up a 1 ohm like it's recommended, and you will have plenty of power.
//content.invisioncic.com/y282845/emoticons/imwithstupid.gif.ff72b14418b3c35ebdf1ccd38da21695.gif

x2

werd

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

Jeremiah25

10+ year member
Team Budweiser
Thread starter
Jeremiah25
Joined
Location
Springfield, MO
Start date
Participants
Who Replied
Replies
86
Views
17,369
Last reply date
Last reply from
BassAddictJ
IMG_1882.jpeg

slater

    Oct 4, 2025
  • 0
  • 0
Screenshot_20251004_120904_Photo Translator.jpg

1aespinoza

    Oct 4, 2025
  • 0
  • 0

New threads

Top