B bebop86 Well-Known Member Apr 1, 2013 79 1 83 Jul 14, 2015 #1 Has anyone compared the opal with cap upgrades to the ruby and how close are they. Also how would either compare to my concert fidelity preamp. Mating to the wyetech topaz amp. Thks for the feedback
Has anyone compared the opal with cap upgrades to the ruby and how close are they. Also how would either compare to my concert fidelity preamp. Mating to the wyetech topaz amp. Thks for the feedback