Responses from zappas

What makes the biggest difference in sound quality?
amplifier longevity
blackdoghifi, true.  
Guess How Big My Speakers Are
Could they be Scanspeaks?  
SET Shootout China VS The USA
Well neither will have a chance pairing them with Perfect speakers.  
Products you added to your system in 2021 that made most impact to your music enjoyment
A new room.  
Do speaker wires have to be the same length for each speaker?
Headphones vs full range speakers
Headphones are for the gym IMO  
Class D amp recomendations please
Listened to 5 separate d amps in my home. No comparison to the big boys.  
Class D amp recomendations please
I recommend you don't buy class d.  
question about an eBay seller
If it sounds to good it probably is. 
Have you moved away from full range to standmount speakers + subs?
Nope, full range plus subs. 
Is this Klipsch upgrade worth it?
Is it Possible??
Sound good but how's the Soundstage? 
What song have you played the most?
Watermelon In Easter Hay,Frank Zappa. 
Does Heavy Metal music benefit from a high end audio system?
Hell yes,  only makes sense.