I'm getting a new system...not looking for anything special. the sub i am getting is an audiobahn aw1200x

120 oz. Double Stacked Strontium Magnets
Power Handling: 700 watts R.M.S.
Frequency Response: 20Hz - 500Hz Efficiency: 92.7 dB
PHAT 2 Inch Foam Surround
Non- Pressed, Non-Transfer Paper Cone
KM3 Coated for Virtually No Cone Distortion 2.5 Inch 4-Layer ASV Voice Coil
Dual 4 Ohm
2 Ohm or 8 Ohm

the amp is an audiobahn a2801x

800 Watts Maximum Power ** 200 watts x 2 @ 4 ohms stereo ** 280 watts x 2 @ 2 ohms stereo ** 560 watts x 1 @ 4 ohms mono ** Volt Meter With Blue Illumination ** Dimensions: 2 Inch (H) x 12.75 Inch (W) x (D) Class A/B MOSFET Circuitry ** PWM MOSFET Power Supply ** Double Sided Glass Epoxy Circuit Board ** THD: 0.02% ** S/N Ratio: >100dB ** Frequency Response: 10Hz �E40KHz (+/- 1dB) ** Variable 18dB Hi-pass Crossover: 90Hz - 750Hz ** Variable 18dB Low-pass Crossover: 30Hz To 120Hz ** Bass boost @ 45Hz: 0/18dB ** Subsonic Filter: 20Hz to 50Hz

i plan to wire the sub into 2 ohms. my guess is that the sub takes 700w rms @ 4 ohms. the amp i chose gives 560w rms at 4 ohms. this is enough power for me.

my question is if anybody knows if the 700w rms is at 4 ohms or 2 ohms or 8 ohms??? also, does anyboyd know if audiobahn amps are overrated, underrated,or correct on rms power? for example rockford fosgate is underrated.

 

That amp is only 2-ohm stable, so you can't power that sub with the voice coils paralleled. You should get a Class D monoblock. There are plenty of them that can easily push that sub.

 

Did you already buy all this gear?
What did you pay for it? Audiobahn amps are OK. Look into the JL Audio amplifiers jlaudio.com and look at the 500/1....retail is $549.99 and KICKS BUTT

 

Micah, the amp spec. posted is:
"200 watts x 2 @ 4 ohms stereo ** 280 watts x 2 @ 2 ohms stereo ** 560 watts x 1 @ 4 ohms mono"
So I'm wondering why it's only 2-ohm stable?
or is that a typo?

 

Ha....i won't go any further. But after all those things i tried to teach you, you go out and get impressed by specs that mean hardly anything. To be honest most of it is just a bunch of marketing bs designed to lure kids like yourself into buying inferior products.

Please email me if you want advice and help on some good quality audio gear

Anton

sweetsound2001@hotmail.com

 

One thing you need to check to see if the amp is stable down to 2 ohms mono. From the specs you provided, it didn't say anything about being that. You will get your amp fried quickly. Remember 2 ohm mono and 2 ohm bridged are different.

K

 

It's not a typo. Amplifier manufacturers state that a 2 Ohm stable amplifier is 2 Ohm stable in STEREO mode only. When an amplifier is bridged into a 4 Ohm load it works as hard as it would if it were in a 2 Ohm stereo setup. Internally the amplifier works just as hard and generates the same amount of internal heat. The heatsink and fans (if supplied) are only capable of dissipating the heat generated by both these loads. If wired into a 2 Ohm bridged load the amplifier channels work as hard as being in a 1 Ohm stereo setup. This generates more heat than the amplifier can dissipate safely and the amplifier will sometimes overheat and shut down.

 

The "this" I was referring to in my last reply was to
Micah's statement that the amp is only 2-ohm stable.
Obviously the spec. states otherwise, so I was wondering why that statement was made.

As an engineer, I'm well aware of impedance issues
as well as it's ramifications on overloading...
But thanks for the explanation anyways.