I need an amp to power 2 RF HE 10's. They are 200 RMS each. I want to wire them up in series to make 2 ohm load and then run them into a 2 channel amp bridged. Is this possible if the amp is 2 ohm stable? I was thinking of the Pioneer GM-X962 Its 380 watts x1 @ 2 ohms RMS. Tell me other amps that are good and like under $150
thanks
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-Morgan
A refresher course on impedance, first. According to the RF website, the HE is available in 8 ohm, and 4 ohm, single voice coil. There is no way to make a 2 ohm load with 2 of EITHER of these wired in series. It would be either a 8 ohm or 16 ohm load. If they were wired in parallel, you would get a 2 or 4 ohm load. When you bridge an amp into a load, each channel will see twice the load (or one half the impedance) of the same load on a non bridged channel. Example: 4 ohm woofer on a bridged amp, the amp "sees" 2 ohms per channel, 8 ohm woofer bridged, the amp "sees" 4 ohms per channel. The Pioneer amp might be a good choice for you, but if you want to bridge it, then you'd better have the 8 ohm versions of the woofers, otherwise you are gonna fry (or MIGHT fry) your amp. If they are the 4 ohm version of the woofers, wire one to each channel of the amp and call it good (and safe, too)... 8ohm\2=4ohm - 4ohm\2=2ohm (two 8 ohm woofers in parallel, amp bridged, 2 ohms per channel, a safe load for this amp) 4ohm\2=2ohm - 2ohm\2=1ohm (two 4 ohm woofers in parallel, amp bridged 1 ohm per channel, NOT a safe load for this amp). You will have a better damping factor this way, too, and the Pioneer is gonna need all the help it can get... trust me, it'll sound better, even though it may not be quite as loud. (according to my calculations, about .75dB lower in maximum output level, hardly enough to notice)
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."