**New to the Forum** - I just purchased a pair of early 80's Heresys in great cosmetic condition. I was introduced to Klipsch at an early age because I grew up in a house with my dad's 70's Cornwalls. A few year's back, I had a 10" Reference Series sub gifted to me and I was impressed with it's bass output - especially paired with my cheaper JBL shelf system that I had at the time. I was very excited to find the Heresys in my local area, so I scooped them up since I am setting up (from scratch) a new system for my condo. I purchased a Denon AVR-S510BT receiver (700W) and hooked up the Heresys this evening, and I must say, I was extremely disappointed in the bass output. I have searched forums on here, and I have also read reviews on other sites, and it's clear that low end on the Heresys is not a strong point. However, I was not expecting virtually no bass whatsoever. Don't get me wrong, the highs sound fantastic - crisp and clear as day. I didn't expect them to be comparable to the Cornwall's by any means, but I did expect the 12" woofers in the Heresys to have similar output that the 10" Reference sub had. Am I way off base here? To be clear, I am by no means an audio expert. Since I have never heard a pair of Heresys before I don't know what to listen for, nor what their bass standard should be. The settings in the Denon are correct from what I have researched. I do not have any surround or center speakers. The settings are set for front speakers and are set on "Large" with no sub. I have checked the positive and negative on both speakers and they are hooked up correctly. Have I just been spoiled with the bass response on the Cornwalls? Should I just pair them with a sub? It's just hard for me to believe that a speaker made by Klipsch and marketed as "2/3 a Klipschorn" would have so little bass response. Any input would be welcomed.