amp/sub choice.

OK I wanted to upgrade my kids Forester with a sub and amp.   Narrowed it down to a single 10" JBL GTO 1014D dvc 4ohm sub.  Would like to power it using an Alpine MRP-M500 mono amp and then building our own sealed enclosure.  I like the true sound of JBL and I like the size of the Alpine amp.  He already has an Alpine head unit and components.  Sub is rated at 50-350 RMS and amp is rated at 500 watts RMS at 2 ohms and 300 watts RMS at 4 ohms.  Will this work?  Enough power?  How to wire from mono amp to dvc?  It's been years since i've had to deal with this stuff. 

That setup should work just fine. Wire up the sub in parallel. It is a wise choice to have an amplifier that is rated higher than your sub because the amp runs more efficiently. However, you have to be careful when setting the amplifier so that you do not blow or over-work your sub. It may take a few tries to find the "sweet spot" but once found you should be happy with your set-up.

Zach

in order to get a mono amp to a dvc you can either break the sub down to series or parallel would be a more efficient choice but take the positives of the sub and connect them together useing speaker wire but not to big of wire and do the same with the negatives. then take the wires comming from the amp and connect them to just one side of the sub thn you should have two sets of wires running to this one side of the sub and one set to the other side of the sub.

You have 2 choices in wiring the woofer, they are in series for an 8 ohm load, or in parallel for a 2 ohm load.  That amp will produce 500 watts into the 2 ohm load.  This exceeds the woofer's power handling.  I would have no problem doing this.  You would probably have no problem doing this if it were in your vehicle.  Being in his vehicle, may be a problem.  I do not know your son nor do I know anything about his ability to hear when a speaker is being beat to death.   Wiring the voice coils in series will yield an 8 ohm load.  The amp wil produce 150 watts wired that way.  This is a choice you will have to make.  Following are the 2 diagrams that apply to your situation.

Option 1 (parallel) = 2 ohm load Voice coils wired in parallel Recommended Amplifier: Stable at 2 or 1 ohm mono

Option 2 (series) = 8 ohm load Voice coils wired in series Recommended Amplifier: Stable at 4, 2, or 1 ohm mono