Amp needed to power 2 x 12 inch subs

**adu** · 27-09-2010 11:46 AM

Hey Guy's & Girls ..

I have 2x12 inch pioneer subs (below the champion series) its says 1000watt .. but i think per sub its like 300 rms ..

I was wondering if anyone could help me .. and tell me if this would suit my subs to run it .. i dont wanna under power my sub ...

Im looking at the below amps that my mate is offering me. 'Alpine or Cadence'. (Below are the spec's) I have no clue about amps or systems thats why i am asking people for suggestions or help.

Thanks Guy's

Alpine MRP-M450 V-Power Amplifier

- Alpine MRP-M450 V-Power Amplifier specifications
General
Product Type Amplifier
Recommended Use Car
Width 9.7 in
Depth 9.5 in
Height 2.4 in
Weight 6.2 lbs
Audio System
Amplifier signal-to-noise ratio 90.0 dBA
Amplifier continuous power / channel qty 220 Watts x 1
Amplifier output 1-channel
Amplifier high level inputs Yes
Amplifier input signal voltage 0.2 - 4V
Crossover type Active crossover
Crossover low pass frequencies 50 - 200 Hz
Crossover bass boost frequency 50 Hz
Crossover bass boost gain 0 to +12dB
Amplifier / Amplifier Class Class D
Amplifier Output Details 220.0 Watt - 4.0 Ohm - THD 1.0 % - 14.4V DC - 1.0 channel(s) , 400.0 Watt - 2.0 Ohm - THD 1.0 % - 14.4V DC - 1.0 channel(s)
Additional features Gold plated connectors , Subsonic filter , Over current protection , Thermal protection , Gain control
Connections
Connector Type 1.0 x Speakers input ( RCA phono x 2 ) , 1.0 x DC power input ( Screw-type ) , Speakers output ( Screw-type ) , Audio line-in

OR

Cadence zrs 510z car amplifier

SPECIFICATIONS:
4 Ohm RMS Power: 2 x 150 Watts @ 13.8 Volts
2 Ohm RMS Power: 2 x 300 Watts @ 13.8 Volts
4 Ohm Mono RMS Power: 1 x 600 Watts @ 13.8 Volts
Frequency Response: 10Hz - 40KHz
Channel Seperation: >65 dB
S/N Ratio: >100 db
Damping Factor: >200 @ 100Hz
Minimum THD: <0.044%
Input Voltage: 200 mV - 8 Volts
Dimensions: 15" x 9.4" x 2.4"
FEATURES:

High Speed Mosfet Power Supply
Bi-Polar Japanese Sanken Output Devices
Copper Rail PCB Architecture
24 dB Crossover Circuitry
Fully Adjustable Low/High Pass Crossover
High Pass Crossover: 50Hz - 500Hz
Low Pass Crossover: 50Hz - 150Hz
Bass Boost Equalization: 0-18db @ 45Hz
Lucite Encapsulated Large 4 Gauge Terminals
Soft Start Mute & Delay
Adjustable Phase Control

**adu** · 27-09-2010 11:59 AM

WILL GIVE REPUTATION if correct information is offered =]

if NONE of the amps are correct for the sub .. please let me know ..

there is no point of me buying and amp for the sub .. but it does nothing

**ICACHA** · 27-09-2010 01:01 PM

whats your "realistic" budget?

**adu** · 27-09-2010 01:47 PM

like 250-300 ...

but my mate is selling these 2 amps dead cheap to me apparently ..

so in your opinion .. none of theses amps suit my subs?

**arverson** · 27-09-2010 02:22 PM

what are the impedance ratings of your subs? dvc, svc, 4+4ohm, 2+2ohm, etc etc

they both dont offer much power at 4ohm but that might not matter depending on your usage & expectations of loud. out of the 2, id go the alpine.. but really either will run your subs fine. you're not gonna notice any major difference between em anyway.

whatever your mate is offering for cheaper i guess

**adu** · 27-09-2010 02:39 PM

im not too sure what type of ohms my subs are running on ..

how do i find out?

thanks though

**ICACHA** · 27-09-2010 07:00 PM

should be written on the subs or use a multimeter to measure impedance

**adu** · 28-09-2010 07:43 AM

i think its 2ohm ..

**ICACHA** · 28-09-2010 08:00 AM

go the alpenis then

**lsvtec** · 28-09-2010 09:51 AM

in my opinion i woudnt buy either especially not cadence, since ure subs are 300rms each go for an amp with 800rms and higher, in my old setup i had a JL audio 400rms 12" sub running off a 1000rms response amp and all that extra power from the amp did help alot.