Hello Talkbass Family, I'm selling my Epifani PS 600 head (600 watts at 4ohms) and the PS 410 (4x10 4ohm cabinet). Both items are in almost new condition. I've only used them for a few gigs and just purchased them around this time last year. The PS series has the same clarity as the UL series. The only difference is the weight and the PS series cabinets produce a rounder and fuller low end. The PS cabinet is slightly heavier than the UL410 but it is still lighter than a lot of 410 cabinets on the market at 79 lbs. Before I purchased the PS 600 I a/b'd it with the UL502. I didn't notice a sound difference at all. Both sounded great to my ears but I went with the PS 600 because it had a lower price tag. Unfortunately, Nick Epifani will not be selling the PS 600 anymore as his new line of amps will be taking over this year. I'm selling this great sound combination because I need to downsize my rig. Maybe go with 2 12s instead for portability purposes. I'm selling the combination for $1700 obo. If you want one but not the other send me a PM.