Before going to the expense of buying another PLC, you might consider changing your outlets. Hubbells and Pass & Seymour tend to be very revealing outlets, especially if cryo'ed. Furutech outlets might work, although they tend to be more dull than I prefer. A good median might be the FIM 880. They're out of production, but you can get them from Galen Carol audio.
If you do decide to go with another PLC, I highly recommend going with a 'parallel' conditioner setup in your price range. My ears tell me that 'tuning' your gear with 2 or 3 different 'parallel' filters upstream of your gear can do remarkable things to clean your sound without restricting dynamics. Blue Circle, AudioPrism, PS audio, Quantum, make good 'parallel' conditioners.
If you do decide to go with another PLC, I highly recommend going with a 'parallel' conditioner setup in your price range. My ears tell me that 'tuning' your gear with 2 or 3 different 'parallel' filters upstream of your gear can do remarkable things to clean your sound without restricting dynamics. Blue Circle, AudioPrism, PS audio, Quantum, make good 'parallel' conditioners.