I got my QLS1’s last June 2020. Got them in north Seattle/Ballard at a little hi-fi shop called “Turntables & Trails” ( the Trails part is he sells second hand hiking gear as well I.e. Jan sport, REI, north face etc.). Paid $1500. Spotless not a Mark anywhere and all rosewood. Crossovers had been redone by seller on consignment there. I took both woofers out and sent to Watkins to have both voice coils replaced and in doing so they also were refoamed obviously. I have been reading that repacking the insulation in them is something to pay attention to ( I didn’t. I just put the stuffing back in after I got the woofers back). I hear Nudell stuffed in varying densities, I didn’t, I wasn’t aware and just stuffed it back the way I found it. Basically not compressing the bleached stuffing just loosely putting it all back in the way I found it. The stuffing was throughout the bottom/base covering xovers and pots, went as high as about 6-7” above where woofer is. The stuffing is also pretty much up against the back of woofer ( when remounting woofers the stuffing is enough where it’s touching magnets and back woofer frame). The stuffing throughout is not layered in any density configuration, pretty much evenly packed but I didn’t compress any of it when I put it back in. Anyone have any experience with said operation? I’m driving uppers with a bridged 450 watt per ch. h/k citation 7.1, and pushing the Watkins woofer with a emotive xpr 5 amp - 600 watt per. Preamp is a Proceed avp2. They sound Incredible.