Lets make this specific: if you were given a choice between two power amplifiers Onkyo M-504 and Emotiva XPA-200, which would you choose and why?

My situation is this. I need a power amp. I can buy a new one (the Emotiva) or fulfill my long time dream and get the M-504. I've always admired Onkyo's amazing looks. I know some of you will laugh at the idea of buying a 30 years old power amp or even comparing it to a modern machine.

Both have approximately the same power. Both will be bought for $500 or so. But I heard that new amps evolved in terms of sound quality.

Here are the specs (I know they may be meaningless because M-504 will be 20-30 years old!):

Emotiva XPA-200

Frequency Response - 10 Hz to 80 kHz

Power: 150 watts / channel; into 8 Ohms

Signal-to-Noise Ratio - 110 dB

THD - 0.02%

Damping Factor (8 Ohm load): > 500

Onkyo M-504

Frequency Response - 1Hz - 100 kHz

Power: 165 watts / channel; into 8 Ohms

Signal-to-Noise Ratio - 120 dB

THD - 0.003%

Damping Factor (8 Ohm load): 140

Edited by grigorianvlad - 8/26/13 at 7:50pm

My situation is this. I need a power amp. I can buy a new one (the Emotiva) or fulfill my long time dream and get the M-504. I've always admired Onkyo's amazing looks. I know some of you will laugh at the idea of buying a 30 years old power amp or even comparing it to a modern machine.

Both have approximately the same power. Both will be bought for $500 or so. But I heard that new amps evolved in terms of sound quality.

Here are the specs (I know they may be meaningless because M-504 will be 20-30 years old!):

Emotiva XPA-200

Frequency Response - 10 Hz to 80 kHz

Power: 150 watts / channel; into 8 Ohms

Signal-to-Noise Ratio - 110 dB

THD - 0.02%

Damping Factor (8 Ohm load): > 500

Onkyo M-504

Frequency Response - 1Hz - 100 kHz

Power: 165 watts / channel; into 8 Ohms

Signal-to-Noise Ratio - 120 dB

THD - 0.003%

Damping Factor (8 Ohm load): 140

Edited by grigorianvlad - 8/26/13 at 7:50pm