Originally Posted by Vdawgs22
i'll start by saying i had a pioneer vsx-1021k hooked up for last year or so, i recently replaced it with sony's str-dn1030. Running 5 speakers : 2 jbl 180s, the center 120, and 2 bookshelf 130s.
If the receiver gets cranked up to around -6db it shuts down... by numbers the speakers should be more than sufficient to handle the Pioneer's power and then some. I replaced with the Sony receiver and it sounds great and should have more power (by their stats as well as benchmarks i've compared) but honestly with the sony cranked it doesnt seem to be as loud... and this receiver again has autoshutoff.. albeit only once but its only been a few days....
First off the dB marks on the AVR's volume control are arbitrary unless your system has been calibrated so it is not possible to correlate -6 dB with much of anything. It does sound like you prefer loud listening.
Secondly, AVRs mostly only shut down if they are running too hot or if there is a short in the speaker wiring. Since you seem to be having the same problem with two different AVRs either condition could apply.
A third possibility is that your energetic usage of these speakers has cooked one or both of the tiny 6 inch woofer's voice coils and that is the source of the short.
Please check your wiring and be on the look out for a stray strand of wire that is almost invisibly shorting two wires together either directly or through a metal connector mounting plate.
If you are using these speakers fairly intensely, you should really invest in a good subwoofer. I recommend spending at least as much as you spent for your front speakers. A good starting point (a bit light but the price is right) might be the Polk PSW 505.
When you get your JBL 190s, I'd suggest that as an experiment you use them to replace the 180s as the 180s are my candidates for being the mostly likely to be damaged by "cooking".
I think that I would have preferred that you had invested in Infinity Primus 363s which are similar speakers probably made in the same factory but with twice as many woofers.