Here are some defs I throw open to everyone to see if you agree or not: A basic system comprises of the source component, it's interconnect, the amplifier, speaker cable, and the speakers (inc. stands if needed). [B]Upgrades[/B] are when you change an essential part of the basic system (ie, what you need, bare minimum, to get any sound) like the cd player for a better one. Upgrades usually always cost money. [B]Tweaks[/B] are things you buy to try to [I]enhance[/I] the existing sound by adding to what you already have, broadly speaking anyway. Most tweaks cost money, with the more absurd ones being more expensive and the best ones being free. [B]Optimisation[/B] is altering things like positioning of speakers to get the best sound. It doesn't cost anything (if it did it would be a tweak) and you aren't adding anything to your existing system (again, a tweak)...you're just getting the best of what you already have. In summary, Upgrading is divorcing your wife, and marrying a better one (may not be more expensive or newer even), Tweaking is adding things/altering her like a new nose (may not always improve and lots of snake oil out there), Optimising her is more akin to putting her to good use (like mowing the lawn - she's unchanged but has been optimised). :green:
