Hi folks, I've been looking around and saw recommendations in various places about getting a Yamaha YHT1810 as a beginner system (receiver+ 5.1 speakers). Now I've looked around a bit further I've noticed a couple of features mentioned that subject to budget I'd like but I'm not sure it includes, there was a page on richersounds website but it's not working now and an old forum post I read elsewhere had contradicting answers. First is active subwoofer output, the argument I read was that if I wanted to upgrade either sub or receiver I'd have to do the other at the same time because that model doesn't (or does?) include it. Also that the parts are pretty much worthless if I did upgrade (again, on the if it is a passive sub and the amp doesn't support active). Second is HDMI pass through, which I understand would allow watching of e.g. Sky through the normal TV speakers without having to switch on the receiver, would keep me in the good books if rest of the household didn't have to find an extra remote or do any setup to put kids TV on in the morning etc. I couldn't find confirmation, so I'm either googling the wrong terms or it's named as a different feature, again if it has it? Should it come to pass that it has none or only one feature then I'd look at maybe going further separate and buying the receiver and speakers apart. I've noted the Onkyo TXSR252, Denon AVRX520BT and Pioneer VSX531 which I believe from reading specs and reviews all have both of those features but again not 100%. They go off talking about things such as 4k pass through which I don't know if it is the same thing. I'm also at a bit of a loss in deciding which is the one to go for, should I choose that route, stumbled on these features I'm now looking for so I don't know what else might be of interest in swinging it. I'll also have to start looking at speakers from scratch, see what I can squeeze from the budget. Thanks for reading and assisting.