I have a lanzar 1800D amplifier: 1 x 400 Watts RMS at 4 Ohms 1 x 800 Watts Max at 2 Ohms 1 x 1200 Watts Max at 1.3 Ohms Bridged Stable at 1-ohm Class-D Design Mono Block Subwoofer Amplifier 1 Ohm Stereo Stable Frequency Response: 15 Hz-35 kHz S/N Ratio: 90 dB and 2 Cerwin Vega HED-12 inch subs: 12" Subwoofer HED-12DVC (dual) Voice Coil Frequency Response: 20-500 Hz Power Handling: RMS: 200 watts Maximum: 400 watts Sensitivity: (2.8v/1m): 90 dB Impedence: DVC MODELS: 4 ohms/coil Those are the specs on the componnents. I have been reading up and figured a little out about amplifier-subwoofer hookups but still am a noobie. If I were to hook up the two subs in parrallel to the amp it would give me an impedence of 1 correct? Either way is it safe to do a parrellel bridge for this amp with my two subs. LOOK ON THE INTERNET FOR EXACT SPECS IF I AM MISSING SOME INFO YOU NEED TO MAKE JUDGEMENT.