New on board here, could use some advice. Have Quartets(black finish)and am looking to add another set of Speaks. Debating between the Chourus II's or the Forte II's as I understand that these have a little more bottem end then the first series(is this fact). Looks like the Forte II's have a lower bass response than the Chorus II's, so is it a good idea to add a sub with the CHRS II's or do they still provide sufficient bass with a 15" woof? That goes for the Forte II's too, do they provide enough bass or shoud I use sub. I had considered adding a sub with my Quartets since they are a little light in that department with a 10" woof & 39hz response, but if I can get more bass by going with just a larger speaker than great(would still add sub if needed). Also, how is the sound quality between the two (without a sub)as far as overall quality. Would the CHRS II's over power my Quartets or is that a good match.I listen mainly to Rock,jazz,rap,hip hop. I am running a Marantz 2275 receiver(75watts channel X 4 for 330watts total output in a room that is 12'X 18'. The speakers would be on the long walls facing each other ie. 12' apart. would the CHRS II's be to large in this area. I will most likely be upgrading my receiver to a larger older Marantz for around a 130w a channel(more if recommended) or with a amp/preamp set up also Marantz. Want to get the speakers first and then match my amps to them. I see people talking about getting tubes amps , is that the best way to go? Any recommendations for older Marantz models ( if they made them). I am not looking to build a HT setup(no center speaker) but wouldn't mind the versatility if it's feasible with this equipment at a later date. Basically just want a GREAT sounding setup with speakers that will compliment each other (musically) and a sturdy amp to drive them for years to come. I know this is a lot of questions but I like to do thing only once and get it right. Would appreciate hearing from people who have experience running simular equipment as to what I have mentioned. Thank you for your time.