One of my older amps has these specs:
150 watts RMS continuous, 8 ohms
300 watts RMS continuous, 4 ohms
475 watts RMS continuous, 2 ohms
Bridged mono:
550 watts RMS continuous, 8 ohms
800 watts RMS continuous, 4 ohms
1000 watts RMS continuous, 2 ohms
Output Current:
40 amps peak, continuous
90 amps peak, 0.1 ohm, 20 msec, 1 kHz
The ability to supply continuous current means a good power section, and the doubling into lower impedances also indicate a 'stiff' power supply.
150 watts RMS continuous, 8 ohms
300 watts RMS continuous, 4 ohms
475 watts RMS continuous, 2 ohms
Bridged mono:
550 watts RMS continuous, 8 ohms
800 watts RMS continuous, 4 ohms
1000 watts RMS continuous, 2 ohms
Output Current:
40 amps peak, continuous
90 amps peak, 0.1 ohm, 20 msec, 1 kHz
The ability to supply continuous current means a good power section, and the doubling into lower impedances also indicate a 'stiff' power supply.