Concept Tuning

Ok so I have two Audiobahn 12"s. I know I know, a lot of you hate Audiobahn, but it's what I got.

Anyways here's the specs on them:

12" 500 Watts RMS Performer Subwoofer
60 oz. Strontium Magnet
Power Handling: 500 watts R.M.S.
Frequency Response: 25Hz - 800Hz
Efficiency: 92.9 dB
EPDM Rubber Surround
Molded, Texture Injected Poly Cone
2" 4-Layer ASV Voice Coil
Dual 4 Ohm
2 Ohm or 8 Ohm Operation
Mounting Dimensions: Depth; 5 1/16" Hole; 10 7/8" Diameter; 12 1/2"
Lug Lock Terminals

I also have a 900 watt mono Rockford Fosgate amp. Heres specs:

150 watts RMS x 1 at 4 ohms
300 watts RMS x 1 at 2 ohms
requires 10-gauge power and ground leads and a 30-amp fuse  wiring and hardware not included with amplifier
selectable 50-250 Hz variable low-pass crossover, 12 dB per octave
TRANS"ana circuit designs keep voltages low and signal paths simple in the pre-amp section, for minimum distortion and maximum musicality
MEHSA provides more efficient transfer of heat from MOSFET output devices to the heatsink for cooler operation
TOPAZ  noise-killing differential inputs that eliminate 80% of ground loop noise
NOMAD  advanced protection circuitry for "intelligent" shutdown protection
preamp- and speaker-level inputs
selectable Punch Bass boost (0/6/12 dB at 45 Hz)
frequency response 20-20,000 Hz
11-1/8"W x 2-3/8"H x 9-7/8"D


Ok first of on the subs a lot of sites say ASV voice coil, what is this? (it has the double connectors, so it's a DVC)

Second whats the best way to hook these up. I have the DVC's on each sub wired together, then each sub connected to the amp. Is this right? It's hooked up like this:

DVC1 + to +
DVC1 - to -
DVC2 + to +
DVC2 - to -

So is this the best way to have these hooked up? This way I am running a 2ohm load right?

fcm

Three things, you are way underpowered, 2 500W "RMS" subs is 1000W of continuous power handling, you have an amp the makes 300W RMS into 2 ohms, [you do not show a watts @ 1 ohm, so I assume the amp is not stable below 2 ohms] and it looks like you have paralleled the VCs, 4 and 4 in parallel is 2 ohms and the you have the subs wired in parallel, 2 and 2 in parallel is 1 ohm, the amp is saying "hurt me hurt me".

Even if you had 2 of the amps, [one for each sub] you would still be underpowered by 200W for each sub.

If the amp is not stable below 2 ohms your only option is the wire the VCs of each sub is series, [8 ohms] and then wire the subs in parallel, [4 ohms] or the other way around parallel the VCs, [2 ohms] and series the subs, [4 ohms] but then you are looking at only 150W rms into 4 ohms, driving a 1000W continues sub system, the subs are saying, "hurt us hurt us" and the distinct smell of burning VCs is not long off. 94

Concept Tuning

Maybe thats the weird plastic smell I get after it's turned up a bit

Dang this blows. So what do I need to do? I hate to just dump this amp, it's really a nice amp. SO if I get another one the same size it will work ok?

Or should I just get a Hifonics amp?

Concept Tuning

Wait I'm confused. I have two subs hooked up to a 300watt rms amp. SO wouldn't 300 watts rms be going to each sub? How does that work when you have two subs hooked up.

8520

....... you split the power when you have two subs

Concept Tuning

Oh duh haha....dang huge tard moment. I'm looking at the Hifonics Brutus amp. I think I will just sell my RF to my gf to put with a MTX 12" she has.

Man I need to find a job this crap will break you in a heart beat.

Concept Tuning

Ok another question. I found a amp that says 500watts rms X 2 @2ohms

So that means 500 watts RMS for each channel (it's two channel) or 500watts rms for both channels combined?

fcm

OK a few more things...
Yes that smell is probably the VCs over heating and burning up, it could also be the amp if you have it loaded down to 1 ohm.

Sell the amp to your G/F?

If it says 2x500W RMS into 2 ohms then it is a total of 1000W RMS and would run the subs alright, although a mono block sub amp that makes 1x1000W RMS into 4 ohms would be better, or even 1x1000W into 1 ohm would work, [4 ohms would be better] 94

Concept Tuning

Why would 4ohms be better?

Yeah "sell" more like give.

fcm

The amp will run a lot cooler at 4 ohms then at 1 ohm even if it is stable at 1ohm, THD will be lower response is more "linear" among other things, [cleaner, tighter more accurate sub bass response]. 94