Pre-amp can make a huge impact. Bryston pre would be a good place to start since you have a matching amp. There are better pre-amps out there and it just depends on your budget. If you want to get into tubes this is a good place to insert them as well. Give us more information on budget, features and desired sound/goals.
Electronic gear does not last forever. Caps start going bad. The Hafler is probably a good choice for replacement.
Clipping is a amp speaker relationship. If the amp is clipping you need a bigger amp or more sensitive speakers.
Electronic gear does not last forever. Caps start going bad. The Hafler is probably a good choice for replacement.
Clipping is a amp speaker relationship. If the amp is clipping you need a bigger amp or more sensitive speakers.