Same issue here. First gen 2 tv had almost no bass at all, very tinny. Went through all the various troubleshooting steps to no avail. Sky sent me a 2nd tv and whilst this was marginally better than the first gen 2 it still lacked bass compared to my gen1. Tried all the obvious troubleshooting procedures but no joy. Few things I noticed was than the UI and platform versions were lower on the gen2 than the gen1. Tried several resets but couldn't get the gen2 to update to the same software. I also noticed that the bass button switch (on screen) didn't seem to do anything at all. I was then adviced that the difference is down to "personal preference" which I immediately laughed at. I've many years experience working with sound systems and given that bass is felt and not heard, this suggestion was preposterous. As proof I used a db meter app to measure the sounds level of the gen1 vs the gen2 and lo and behold the numbers don't lie. The equaliser shows the gen1, at 31.5hz, around 50-60 db whereas the gen2 has a flat(ish) 38-40 db. At full volume the peak db for then gen1 is 91-92db whereas the gen2 peaks at 87-88db! Now for those who don't know, for every 1db increase the sound doubles so a 5db difference is very noticeable. It's also clear just by listening that when run side by side, the gen1 is clearly clouded at full volume. So given the gen2 has an extra subwoofer and is rated at 35watts more powerful than the gen1 the figures just don't add up. Despite this (and Sky have all the info and db screenshots as proof) they're still trying to claim that it's down to personal preference and as such they won't send a 3rd replacement. Only option is to send the 2nd one back under the cooling off period and purchase another gen2! However I've been into a branch of Curry's and listened to their demonstrator model and it sounds exactly the same as the 2nd gen2 which I still have. I'm now going to get trading standards involved as this is leaning me towards false advertising as there is no way, according to Skys own specifications, that the gen1 can outperform the gen2. This whole process wasted an entire weekend as well which I'm going to try and claim some sort of compensation because clearly, despite it being their flagship product, they don't have the support infrastructure in place to deal with this issue. I even asked if they could send an engineer out yet this is not an option but would immediately prove what I'm saying, even though I've proved it with the sound meter.
