Anyway i use a cooler from amazon (1krs) no matter what i throw at it, its always cool. Anyhow will love to check it with eco onPlease check, if on it should be much cooler. Mine is, even with just 2 channels pre out, with 3 pwr. channels of the rcvr. working. Before with eco off in this configuration it was still getting very hot.
Cheers,
Sid