Symphonic music is the most demanding type of music for an amplifier, requiring the most power, but the Ayre and darTZeel amplifiers I discussed are both sufficiently powerful for the Temptations provided that your listening room is not really big - both amps have excellent power supplies and have no problems with symphonic peaks.
In any event, you should be focusing on what is going to sound best MOST OF THE TIME - if 95% of your listening is at normal volumes, then you should focus on quality. In addition to darTZeel and Ayre, you should consider top quality tubes amps that are zero-feedback, Class A-biased triode designs. I also really respect and like the CAT amps - they use a few decibels of global feedback and it is difficult to find the right tubes for them, but they nonetheless sound superb and are enormously powerful.
Good luck.
In any event, you should be focusing on what is going to sound best MOST OF THE TIME - if 95% of your listening is at normal volumes, then you should focus on quality. In addition to darTZeel and Ayre, you should consider top quality tubes amps that are zero-feedback, Class A-biased triode designs. I also really respect and like the CAT amps - they use a few decibels of global feedback and it is difficult to find the right tubes for them, but they nonetheless sound superb and are enormously powerful.
Good luck.