Elevick has an excellent point about chasing too much money after mod's etc on a modest, 'budget'(for ARC), preamp.
Apart from posting how much money you are willing to commit so you can get some more specific guidance, you might like to tell folks what you mean by 'taking the unit to the next level'. Some things are do-able, some things are not, some things are cheap, some things not. It helps if you can critique your LS7 and pin down exactly what you would like to improve.
Apart from posting how much money you are willing to commit so you can get some more specific guidance, you might like to tell folks what you mean by 'taking the unit to the next level'. Some things are do-able, some things are not, some things are cheap, some things not. It helps if you can critique your LS7 and pin down exactly what you would like to improve.