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Need opinion on amp/sub combo

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=42477
Printed Date: May 20, 2024 at 12:15 PM


Topic: Need opinion on amp/sub combo

Posted By: porteeab
Subject: Need opinion on amp/sub combo
Date Posted: November 07, 2004 at 11:35 PM

I intend to put the following in my 97 crown vic:

Speakers:
Infinity Reference 6800cs      -front
Infinity Reference 9603i       -rear
Infinity Kappa Perfect 10 VQ   -sub
Will place the sub in a Qlogic sealed .65

Power:
Infinity Reference 5760a 6 channel
Will bridge the two sub channels for a reported "56 watts RMS x 4 + 287 watts RMS x 1 in 5-channel mode"

My question is, with this sub, in this enclosure, will the bridged 287 watts be enough for good performance. I realize that 287 is ideal, probably at 14.4. I'll probably get less. Any ideas what I should expect? Is there a bare minimum % of RMS that should be provided to this sub, if so am I close? If anyone has any experience with this sub they will probably agree that the variables with this thing are extreme. It's got some removable inserts that change the magnets mass/strength, it will work in just about any enclosure.

Here's a good review



Sub Specs:
Impedance                           4 ohms     
Cone Material                    Magnesium Metal Matrix     
Surround Material                    NBR     
Sealed Box Volume (cubic feet)    0.3 - 1     
Ported Box Volume (cubic feet)    1.25 - 2.5     
Port diameter (inches)            N/A     
Port length (inches)               N/A     
Free-Air                           Yes     
Dual Voice Coil                   No      
Sensitivity                           87dB     
Frequency Response               25 - 0.4k Hz     
RMS Power Range (Watts)               75-400     
Peak Power Handling (Watts)         1600     
Top Mount Depth (inches)         6 1/2     
Bottom Mount Depth (inches)         7 3/16     
Cutout Diameter or Length (inches)     9 1/4     
Vas (liters)                    45.88     
Fs (Hz)                             23.09     
Qts     0.42     
Xmax (millimeters)                   16.75     



Replies:

Posted By: porteeab
Date Posted: November 07, 2004 at 11:44 PM
Note:

The review is of the DVC version. Mine is a single VC.

Infinity Kappa Perfect 10 VQ, not DVQ



Posted By: kfr01
Date Posted: November 08, 2004 at 12:33 AM
You should be fine with that much power, but it probably depends on your listening habits. Try it, more than likely you'll be fine. If you start clipping the amplifier, you'll need more power.



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New Project: 2003 Pathfinder



Posted By: porteeab
Date Posted: November 08, 2004 at 1:32 AM
Thanks for the input. I must admit I am a bit nervous about this amp. The whole point was to keep my system to one amp for simplicity. If the sub is underpowered my whole plan may go out the door with this amp.

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4 cylinders and two tires



Posted By: kfr01
Date Posted: November 08, 2004 at 2:20 AM
You should be fine. I wouldn't be nervous about the amp, if you decide you need more power in the future you can always use that amp in a plan to upgrade speakers. bi-amp, run some midbass, etc.

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New Project: 2003 Pathfinder


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