Is this its replacement?
http://www.caryaudio.com/press/news.html
The new Model 1.600 is a mono power amplifier rated at 600 watts into an 8 ohm load. With a 1500VA universal voltage dual primary transformer, there are four independent power supplies within the Model 1.600, one for each rail of each amplifier channel. The power supply also incorporates inrush current limiting that is switched out after a short time period once the amplifier has been powered on. This allows the amplifier to not cause brown outs when switched on, but pull the high currents necessary for proper performance when in operation. On the audio input section, the Model 1.600 utilizes the THAT Corporation 1200-Series In-Genius™ high-CMRR (Common Mode Rejection Ratio) input stage which feeds the new National Semiconductor LME49811 High Fidelity Power Amplifier Input Stage. The LME49811 chip drives the final, balanced bias circuit and a triple output stage yielding an unprecedented low noise level, superb balance, and extraordinary power levels.
http://www.caryaudio.com/press/news.html
The new Model 1.600 is a mono power amplifier rated at 600 watts into an 8 ohm load. With a 1500VA universal voltage dual primary transformer, there are four independent power supplies within the Model 1.600, one for each rail of each amplifier channel. The power supply also incorporates inrush current limiting that is switched out after a short time period once the amplifier has been powered on. This allows the amplifier to not cause brown outs when switched on, but pull the high currents necessary for proper performance when in operation. On the audio input section, the Model 1.600 utilizes the THAT Corporation 1200-Series In-Genius™ high-CMRR (Common Mode Rejection Ratio) input stage which feeds the new National Semiconductor LME49811 High Fidelity Power Amplifier Input Stage. The LME49811 chip drives the final, balanced bias circuit and a triple output stage yielding an unprecedented low noise level, superb balance, and extraordinary power levels.