The sub is a 12" Eclipse unit. I don't know the model but I do know its 4 ohm and only handles 250 RMS. With it you get an old Alpine MRV-T500 amp. This system will add plenty of bass to your music but will not shake the car next to you. I listen to mostly rock/metal and this was the perfect setup. Amp specs: Alpine V12 MRV T500
12V- 20Hz to 20 kHz
2 channel (4 ohm) - 50W 0.08%THD
2 channel (2 ohm) - 100W 0.3%THD
Bridged (4 ohm) - 200W 0.3%THD
14.4V - 20Hz to 20 kHz
2 channel (4 ohm) - 75W 0.08%THD
2 channel (2 ohm) - 150W 0.3%THD
Bridged (4 ohm) - 300W 0.3%THD
Variable hpf/lpf from 50 to 200 Hz
Asking $50 for the amp and sub in a box. Thanks