Dayton SA25 Subwoofer Amplifier $29.00
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=300-782
15 watts RMS into 8 ohms
25 watts RMS into 4 ohms
Dayton SA70 Subwoofer Amplifier $39.00
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=300-784
45 watts RMS into 8 ohms
70 watts RMS into 4 ohms
Dayton SA100 Subwoofer Amplifier $75.00
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=300-802
75 watts RMS into 8 ohms
100 watts RMS into 4 ohms
Dayton SA240 Subwoofer Amplifier $128.88
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=300-804
170 watts RMS into 8 ohms
240 watts RMS into 4 ohms
Dayton SA240-B Subwoofer Amplifier w/Bass Boost $128.88
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=300-805
170 watts RMS into 8 ohms
240 watts RMS into 4 ohms
Dayton HPSA500 Subwoofer Amplifier $298.80
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=300-806
273 watts RMS into 8 ohms
540 watts RMS into 4 ohms
Dayton HPSA1000 Subwoofer Amplifier $398.80
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=300-808
512 watts RMS into 8 ohms
1024 watts RMS into 4 ohms
