Would these Dual 12" Subs work with a car amp that I have?

[GenWatsonHV]

I have two 12" Infinity Reference 1262W Subwoofers installed into a sealed box. The subs are currently set up to run in series. I can also run them in parallel. These are Dual-Voice Coil subs.

Specs for the Infinity Reference 1262W Subwoofer (Per Sub)

Type 12" (300mm) Dual-Voice-Coil Subwoofer

Power Handling: (Continuous/Peak) 100W-300W/1200W

Impedance: 2 or 8 Ohms

Audio Specifications

Sensitivity: 96 dB

Frequency Response: 23Hz - 400Hz

Cone Material: Polypropylene

Surround Material: Rubber

I also have a Kenwood KAC-9105D car amplifier.

Specs:

Mono Subwoofer Amp

500 watts RMS x 1 at 4 ohms (900 watts x 1 at 2 ohms)

1-ohm stable (output regulated to 900 watts)

Peak Power Output (Watts x Channels) 1800 x 1

Input Voltage 14.4v

Best Frequency Response 10-200 Hz

THD at Rated RMS Power 1%

Signal to Noise Ratio 100 dB

Features

Amplifier Class D

Low-Pass Crossover Frequency 50-200 Hz

Low-Pass Slope (dB/octave) 24 dB/oct

Bass Boost 0-18 dB

Bass Boost Frequency 40 Hz

Fan Cooled Yes

Fuse Rating 90

Speaker Level Inputs Harness

Preamp Outputs 1 pair

My question is, do you think that this amplifier would provide enough power to the two subwoofers? Optimally? I think the amp might not have enough power for what I have. Also, I'd like to put these in my 2005 Acura MDX. Any advice would be greatly appreciated!!!

Thanks!!!

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[Boomin_tahoe 5,000+ posts]

Unfortunately, not really. Reason being is because you have dual 4 ohm subs, and you would need a 1 ohm stable amp to power those subs nicely. Even at a 4 ohm load, once the subs are wired correctly, it'll barely make any bass and only using 1/2 the amps available power.

JL Audio » header » Support » Tutorials » Tutorial: Wiring Dual Voice Coil (DVC) Subwoofer Drivers

 

[GenWatsonHV]

The amp can do 1-ohm stable. (output regulated to 900 watts)

Its just simply not enough power then?

 

[Boomin_tahoe 5,000+ posts]

Wait...so the amp is stable to 1 ohm and does 900 watts AND 900 watts @ 2 ohms also??

 

[GenWatsonHV]

https://www.crutchfield.com/S-NRA53HoZpvX/p_113KAC9105/Kenwood-KAC-9105D.html

 

[Jeffdachef 5,000+ posts]

Wait...so the amp is stable to 1 ohm and does 900 watts AND 900 watts @ 2 ohms also??

yes its regulated output so its 1 ohm stable. he's fine with his setup.

 

[Boomin_tahoe 5,000+ posts]

In that case, you'll be fine with that amp. I don't like the fact that they say 1 ohm power/rms is over 900 but no specific number given. Read a few reviews people seem to like it so must be an ok amp.

 

[GenWatsonHV]

Should I run them in series or parallel? What ohms would be the best to match with?

 

[Boomin_tahoe 5,000+ posts]

Parallel

 

[Jeffdachef 5,000+ posts]

Should I run them in series or parallel? What ohms would be the best to match with?

parallel 1 ohm.

 

[GenWatsonHV]

Ok! I'll have to change it then.

Also, because the subs are 1200 watt peak each, making them 2400 watts total, wouldn't that mean the amp couldn't deliver the max wattage that the subs can handle, being that the amp is 1800 watt peak?

 

[Boomin_tahoe 5,000+ posts]

Peak power is BS...you wanna look at rms/continuous power, not peak power. That's only for a few seconds that the subs can handle before they get destroyed.

 

[GenWatsonHV]

Also, the subs frequency response goes up to 400hz, when the amps recommend frequency response goes up to 200hz... So this amp wont be the best amp to show off the subs higher frequency's?

 

[THATpurpleKUSH 5,000+ posts]

That Kenwood amp doesn't do rated, you'll be lucky to get 700w at 1 ohm.

 

[bandit_kb]

Also, the subs frequency response goes up to 400hz, when the amps recommend frequency response goes up to 200hz... So this amp wont be the best amp to show off the subs higher frequency's?

The amp is fine. You don’t want your sub playing up to 400hz. Set low pass filter on amp around 80

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