Might I step in here with another budget suggestion?
A classic(or two) Hafler DH-500 amp run about $250-$350 ea. These 50 lb beasts are legendary for driving just about anything and are bridgeable to 800 watts into 8 ohms. They were mainstays in the Pro audio world for decades and thousands are still in use. There are also companies that do extensive(& expensive) mods to them.
A classic(or two) Hafler DH-500 amp run about $250-$350 ea. These 50 lb beasts are legendary for driving just about anything and are bridgeable to 800 watts into 8 ohms. They were mainstays in the Pro audio world for decades and thousands are still in use. There are also companies that do extensive(& expensive) mods to them.
Power Rating: Less than 0.025% total harmonic distortion at any power level up to 255watts continuous average power per channel into 8 ohms at any frequency between20 Hz and 20 kHz with both channels driven.Obviously, Undertow's experience with Zu's speaks for itself, he really knows his stuff. But the Haflers are worth considering for any subwoofer application. Do a web search on the DH-500's or the pro equivalent D-500, it has a long and illustrious history. I found the fan in the D-500 to be too loud for home applications, but DH-500 works well.
Frequency Response into 8 ohms:
-3 dB, 0.5 Hz to 120 kHz at 1 watt
+/-O.5 dB, 5 Hz to 40 kHz at 255 watts
Input Impedance: 47,000 ohms
Input Sensitivity: 2.35 volts for 255 watts into 8 ohms; 0.145 volts for 1 watt
Damping Factor: 200 to 1 kHz into 8 ohms; 60 to 10 kHz into 8 ohms
Rise Time: 10 kHz, 80 volts p/p square wave, 10% to 90%: 2.5 us.
"The over-sized power transformer, the conservative operating levels of the MOSFETs, the computer-grade electrolytics totalling 40,000 microfarads, the enclosed relay, the use of film capacitors in signal circuits-all are evidence of the design efforts to achieve exceptional reliability simultaneously with state of the art sonics and specifications. So rugged is the DH-500 that it can deliver over 20 amperes into a short circuit!"