Found this review of the Luxman l-550 aii and they used two speakers:
"two-way Proac Response D18 (88db/8Ω) as well as the Klipsch Heresy MKIII with a sensitivity of 99db/8Ω."
The reviewer liked the Klipsch Heresy MKIII with the L-550 aii better. Link to the review
http://www.abouthifi.com/review.php?s=tWU
"two-way Proac Response D18 (88db/8Ω) as well as the Klipsch Heresy MKIII with a sensitivity of 99db/8Ω."
The reviewer liked the Klipsch Heresy MKIII with the L-550 aii better. Link to the review
http://www.abouthifi.com/review.php?s=tWU