Drubin
The 'R' series seems like more for HT than 2 channel. When compared to 2 channel the 'R' series to me sounds too boomy. Not as musical. Maybe it's the class 'D' amp - I don't know but again to me it didn't sound right. FWIW I have the B3 and will say the cable made a huge difference over the stock cable. It's possible a cable upgrade would make the the 'R' series sound better. I didn't have the upgraded cable to compare then. The Nordost baseline is less expensive when compared to the SR telsa so it could be even better. I just know the stock cable does not do the Rel any justice. Although any upgraded stock cable may bring the cost of the Rel way up.