The Alpine MRP-F250 will not work. It only puts out 2x40w + 1x100w in bridged mode and the RF subs are rated for 150w RMS. You would only be giving each one 50w. That isn't enough.
Another option with the MRP-F250 is to bridge both front and rear channels for 2x100w. You would still be underpowering them though...and the Infinity speakers aren't going to sound too hot powered by the 10w stock stereo amplifier.
The Audiobahn amp will put out 2x75w + 1x300w which is much better suited for the RF subs and Infinity speakers. That is why I included it in my suggestion. I would love to include an equivalent Alpine amp in my suggestion but the fact is, an alpine amp that could power this combo would bust the $500 budget.
Also, make sure you select the right RF package. There are two different models, an 8 ohm version and a 4 ohm version. You want two 8 ohm subs to create a 4 ohm load across the bridged channels of the Audiobahn amp. You would want two 4 ohm subs if you were to power them off the MRP-F250 with both front and rear channels bridged.
Anyway, what I'm getting at...and this is a good example to prove the usefulness of this thread...is that there is a science to choosing the right audio gear especially when you have a budget to worry about. You need to allocate the right funding for each component and they all have to work together.
You can't simply connect any subwoofer to any amp and expect it to sound great. I'm sure a $300 subwoofer will sound fine hooked up to a $200 amp but I can almost guarantee that a $175 subwoofer will sound better hooked up to a $325 amp.
Another option with the MRP-F250 is to bridge both front and rear channels for 2x100w. You would still be underpowering them though...and the Infinity speakers aren't going to sound too hot powered by the 10w stock stereo amplifier.
The Audiobahn amp will put out 2x75w + 1x300w which is much better suited for the RF subs and Infinity speakers. That is why I included it in my suggestion. I would love to include an equivalent Alpine amp in my suggestion but the fact is, an alpine amp that could power this combo would bust the $500 budget.
Also, make sure you select the right RF package. There are two different models, an 8 ohm version and a 4 ohm version. You want two 8 ohm subs to create a 4 ohm load across the bridged channels of the Audiobahn amp. You would want two 4 ohm subs if you were to power them off the MRP-F250 with both front and rear channels bridged.
Anyway, what I'm getting at...and this is a good example to prove the usefulness of this thread...is that there is a science to choosing the right audio gear especially when you have a budget to worry about. You need to allocate the right funding for each component and they all have to work together.
You can't simply connect any subwoofer to any amp and expect it to sound great. I'm sure a $300 subwoofer will sound fine hooked up to a $200 amp but I can almost guarantee that a $175 subwoofer will sound better hooked up to a $325 amp.
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Mostly I just went looking for stuff I wouldn't mind in my car. I haven't heard the ID10, or the JBL amp, but I was going on rep and price for those.
