AQ 2200D tested!

[Bipolar 10+ year member]

I'm confused, Let me go read this again...I thought this amp makes 2200 watts at 1 ohm..

 

[Bipolar 10+ year member]

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

 

[IgnoreMe 5,000+ posts]

OK, is the 1093.624 at 1 ohm or 4??? Confused

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

 

[lilmaniac2 5,000+ posts]

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

 

[Skip01 5,000+ posts]

This is making me wanna go test my ab500.1.....and i think i shall hehe

 

[DBDRAGGUY 10+ year member]

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.

 

[Bipolar 10+ year member]

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!

 

[Jeremiah25 10+ year member]

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.

 

[lilmaniac2 5,000+ posts]

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

 

[Bipolar 10+ year member]

OK, I didn't know if there were certain things to do or avoid doing that would cause impedance rise.

 

[MEMPHISFLEX 10+ year member]

And when you get into the quad voice coils, there is alot of difference there, so many coils, there is greater impendence rise than your normal dual voice coil subs!!

 

[quackhead 10+ year member]

Thanks for the thread. I am impressed and cant wait to get this amp fired up.

 

[dbhittin 5,000+ posts]

i just placed order for mine!

 

[Jeremiah25 10+ year member]

OK, so I didn't really post much about the amp other than power, so I'll take a min and post some general thoughts on the amp for the other factors.

Good:

I love the fact that this amp has a clipping indicator built into the remote gain control. Just mount the knob somewhere that you can reach/see it, and you can tell if you are clipping the amp at a glance.

The amp is very dynamic for a class D amp. Even at low volume levels it has a lot of punch, and picks up all the quick, tight transients. This has been my biggest gripe about the AQ1200 and the DD M1a, as they don't do this particuarly well. This amp is much better.

Beat the crap out of it, and it's still cool to touch.

Turns on/off almost silently.

Small footprint/good power

Looks. Can't go wrong with plain black and a simple logo.

1/0 input terminals. I think every amp over 500 watts should have them.

Price (obviously)

Bad:

No bass boost, phase control, blah blah etc.... knobs. I personally don't give a crap if they are on there or not, but some people may. DJ left them off for some noob protection, and I can definately see his reason.

Can't shut the subsonic or LPF off. I know it's a sub amp, but I like to shut these off and use my active crossover to control everything. Not a huge deal, but something I prefer.

Can't really think of anything else I didn't like

I like this amp so much, I'm trying like h e l l to talk DJ into a 3000+ watt amp. He's fighting the urge, but I think we can break him down. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Bipolar 10+ year member]

has a clipping indicator built into the remote gain control.

Beat the crap out of it, and it's still cool to touch.

1/0 input terminals.

Im SOLD!!! For sure my next amp! Thanks for that great info!