If you are looking to sell one of your amps I am assuming you are vertical bi-amping the pair. I am surprised that you find the bass lacking, but I have never heard your speakers. I have Alon V MKII bi-amped. the speakers are not overly efficient. I changed from bi-amped Sim Audio ss to the cary v12r and have been very happey with the switch. I would advise keeping the second v12 and auditioning a ss amp before making the final decision.
