Aight i'm buying 2 type r 15" subs and wondering if i should get the 2 ohm or 4 ohm type.... I i have a 4400 watt rms MA Audio amp 2-channel Here's my amp spec. Technical Specification * RMS Power Range : 500-4400 Watts * Number Of Channels: 2 * Built In Crossovers: Yes * Channel Separation: Yes Features * 2 x 500W RMS @ 4 Ohm Stereo * 2 x 800W RMS @ 2 Ohm Stereo * 2 x 1400W RMS @ 1 Ohm Stereo * 2 x 2200W RMS @ 0.5 Ohm Stereo * 1 x 4400W RMS @ 1 Ohm Bridged * Dimensions (H x W x L): 2.7"x 12.4"x 27.3" and some more i found on it * Digital LCD Display (Voltage, Temperature & Output Level) * Platinum Plated Connections * Quiet Fan Cooling System * High Quality Power & Protection LED̢̢̮ââ¬Å¡Ã¬Ã¢ââ¬Å¾Ã¢s * Thermal / Short / Overload Protection Circuitry * 0-18 dB Variable Bass Boost * 40-250Hz Variable High Pass Crossover * 40-250Hz Variable Low Pass Crossover * Remote Bass Control * THD @ 4 Ohm <0.05% * THD @ 2 Ohm <0.1% * THD @ 1 Ohm <1.0% * S/N Ratio: >90dB * Channel Separation: 60dB * Frequency Response: 20-20kHz * Input Voltage Range: 200mV - 8V * Input Impedance: 10k Ohms * Dimensions: 2.7" H x 12.4" W x 27.3" L * 2-Year Manufacturer's warranty Amplifier Specifications: * Amplifier Class N/A * Number of Channels 2 * RMS Power (4 ohms) 500 watts x 2 channels * RMS Power (2 ohms) 800 watts x 2 channels * RMS Power (1 ohm) 1400 watts x 2 channels * Bridged RMS Power 4400 watts x 1 @ 1 ohm * Peak Power Output N/A * Minimum Impedance Unbridged 0.5 ohm * Minimum Impedance Bridged 1 ohm * THD at Rated RMS Power <1.0% * Speaker Level Inputs No * Preamp Outputs Yes - 1 pair * Built-in Crossover Yes - HP / LP * High-Pass Crossover Frequency 40 - 250 Hz * Low-Pass Crossover Frequency 40 - 250 Hz * Subsonic Filter N/A * Signal-to-Noise Ratio >90 dB * Channel Separation N/A * Bass Boost 0 - 18 dB * Bass/Gain Remote N/A * Fan Cooled Yes * Fuse Rating N/A