MX-3.com

it may be posted somewhere else. so im sorry for doing it again. i plan on getting a mtx sub and amp but i dont know how to read the specs very well. i.e ohms and watts and other audio facts. If you know about this stuff please help me understand it. i would like to know more about this stuff
here are the stats:

T8512-04 Specifications
Size : 12”
Impedance : 4 Ohm
RMS Power (Watts) : 500
Rec. RMS Amplifier Power (Watts) : 250-500
Sensitivity : 89.78dB
Voice Coil : 3”
Magnet Weight (oz.) : 160
Mounting Depth (inches) : 7 3/4”
Cut Out Diameter : 11”
Sealed Enclosure Net Volume : 1.25 cu ft
Vented Enclosure Net Volume : 2 cu ft
Speaker Displacement : .09 cu ft
Volume Displacement (SD x XMAX)(in3) : 73.61
Tuning Frequency : 34Hz

T8512-44 Specifications
Size : 12”
Impedance : Dual 4 Ohm
RMS Power (Watts) : 500
Rec. RMS Amplifier Power (Watts) : 250-500
Sensitivity : 92.1dB
Voice Coil : 3”
Magnet Weight (oz.) : 160
Mounting Depth (inches) : 7 3/4”
Cut Out Diameter : 11”
Sealed Enclosure Net Volume : 1.25 cu ft
Vented Enclosure Net Volume : 2 cu ft
Speaker Displacement : .09 cu ft
Volume Displacement (SD x XMAX)(in3) : 73.61
Tuning Frequency : 34Hz

also is this amp powerful enough:Primary Ratings
Power Output : 700 Watts RMS x 1 Channel @ 4 Ohms < 1%THD+N
Signal-to-Noise Ratio (1 Watt) : >75 dB

Secondary Ratings
Power Output : 1000 Watts RMS x 1 Channel @ 2 Ohms < 1% THD+N
THD+N : <1%
Frequency Response : 20 Hz to 200 Hz
Maximum Input Signal : 4V
Maximum Sensitivity : 250mV
Dimensions : 9 1/8” x 15” x 2 ¼”

Mono Gain Control
Crossover : Low @ 40 Hz to 200 Hz, 24dB/Oct
Subsonic : 20 Hz to 50 Hz, 12dB/Oct, Variable
Bass Boost : +12dB @ 40 Hz

Well I am no sub expert, so correct me if I am wrong guys, but from what I know all you need to worry about is..

The OHMS of the sub and the RMS rating of the Sub.
The RMS power of the amp @ the same OHMS as the Sub.

Example:
I have a MTX MXS1004 and it is 400w RMS @ 4ohms, single voicecoil.
My amp is a MTX TC6001 and that is 300w RMS @ 4ohms. Abit underpower but the test spec sheet says 337w RMS @ 4 OHM

Your sub choices:

T8512-04-
500w RMS @ 4ohms - Single voice coil

T8512-44-
500w RMS @ 4ohms - Dual voice coil

The amp is powerful enough for both easily to run 1 sub:

700 Watts RMS x 1 Channel @ 4 Ohms - Thats 200w more then needed, you can even get a smaller amp if you want, unless you are running 2 subs then this is OK.

If you are getting 2 subs, then get the dual voice coil sub so that you can parallel them and run them at 2ohms and get 1000RMS @ 2ohms from the AMP. Here is a diagram of that, you basically cross the voicecoils together to drop the resistance rating (OHM) to 2 OHMS so that you can get more RMS out of your AMP to the subs:

get 2x single 4's run in parallel get a 2 ohm load that'll send 500rms to each sub.

thanks a lot people. appreciate it. Its gonna be a wedding present for me. lol