have just the yamaha m 40 playing the forte and chorus,sometimes they sound great together,sometimes the forte by themselves sound better,sometimes the forte and quartet sound really good,but i do not get the added bass from the chorus.mostly just play cd,streaming music ,it just seems like you are missing so much.I thought everything sounded good untill i went out and saw a live band.Every instrument was so detailed and crisp that is what iam after that sound..I will take all the advice location of speakers,diferent amp i have no preamp.I apreciate you guys taking the time..thank you.does anyone out there pair up a la scala and a chorus11?to me and what i have heard might be a awesome combo.