Hello Myself owning a Audio store in the past always asked several very important questions
before even thinking about a recommendation .
such as type of music and Max SPL level , size of room, and efficiency of speakers and if subs are used to relieve the amplifier duties sonic signature of speakers 4 or 8 ohm , and efficiency. And most importantly What is your
max budget. For $3500 a good used Modwright integrated 200 woc for example
look at power supplies Va, and capacitance amount ,your dynamic energy storage.
if efficient speakers the Pass labs 150 ,or 60.
gryphon Excellent used and Vitius ,especially Vitus currently in the $6500 used range online blow away the competition at or above pass level,Boulder level. I am speaking of compared to world class seperates now . Mcintosh is the prettiest but middle of the road performance compared to the $10 k and up. I also have been involved with Upgrades just look in a Piece of Mcintosh gear the Red capacitors Wima $6 caps they rate about a 7
out of possible 15 . For example a a great med priced cap $60 Mundorf Supreme ,or VH audio oimp cap which is even better for $400 more in parts a better then 5% improvement Why not ? To save cost .this is why I either have a Pass labs custom built clone prints from the man himself Nelson Pass ,or a older great amp , same applies to integrated look for a larger, or standard 17x19 box
to install larger premium parts.
and just upgrade . Best parts in critical areas , Coda another excellent product
if possible run in part Class A bias, in the first 10-20 watts is always a plus.
Accuphase another class -A build from Japan .currently there is a New one on AG with factory warranty at 50% off. I was evrn considering for a second system .
many options . Research abit and best of luck !!