I have owned almost every Klipsch Heritage made. In the 33 years that I have owned them I have tried many different combinations. Back in the 70s I also had a Quadraphonic set up as you, only with different amps. It sounded good, but nowhere to the level that I achieved later.
Now in the order of importance, I will give you a list of what I feel will make them sound great.
#1 Klipsch likes a good acoustic treated room, especially treated for the bass waves to prevent standing waves, if you get your bass correct you have a better chance of your highs sounding right. These speakers move a lot of air, so it is very important to prevent standing waves for them to sound right. They like large rectangular rooms with tall ceilings, but I have had good results in some small rooms. Example, recommended room dimensions for a medium size room would be L19.5 W14 H9.
#2 You have to put the best front end in front of them that you can afford, whether analog or digital. You can get them to sound great with either. I dont recommend tape.
#3 I have had them sound great with solid-state amps, but to take them to the next level I recommend tubes or a combination of a tube preamp and solid-state power amp. I achieved my best sound with all tubes. They should be of high quality, but most important, the amps have to interface with Klipsch. For tubes I like CJ, Scott vintage. 300B tube amps. To get your best recommendations for solid state or amps in general go to
http://forums.klipsch.com/forums/
Now in the order of importance, I will give you a list of what I feel will make them sound great.
#1 Klipsch likes a good acoustic treated room, especially treated for the bass waves to prevent standing waves, if you get your bass correct you have a better chance of your highs sounding right. These speakers move a lot of air, so it is very important to prevent standing waves for them to sound right. They like large rectangular rooms with tall ceilings, but I have had good results in some small rooms. Example, recommended room dimensions for a medium size room would be L19.5 W14 H9.
#2 You have to put the best front end in front of them that you can afford, whether analog or digital. You can get them to sound great with either. I dont recommend tape.
#3 I have had them sound great with solid-state amps, but to take them to the next level I recommend tubes or a combination of a tube preamp and solid-state power amp. I achieved my best sound with all tubes. They should be of high quality, but most important, the amps have to interface with Klipsch. For tubes I like CJ, Scott vintage. 300B tube amps. To get your best recommendations for solid state or amps in general go to
http://forums.klipsch.com/forums/