Muffled sound and volume drop from almost new PS-2?

Stage & Studio Power Station PS-2
1

I have a PS-2 I bought new from a dealer last June (2025). I use it to bring down the volume of a Two-Rock TS-1. For the last couple of weeks, I’ve first noticed a volume drop but it seemed like a restart of the unit fixed it; then I noticed a drop in the highs and everything sounded muffled. Now I notice an even more pronounced drop in volume at the same settings I’ve been using since I got it. The amp works great without the PS-2.
Am I already running into issues with the (preamp) tubes? I use this unit maybe 2-3 times a week for an hour or two each, only at home. Should I be having these issues, or is there something else going on? TIA!

2

Looks like it’s similar to this issue Huge sudden volume drop with PS2A

3

Welcome to the forum!

It’s usually helpful to know the full rig setup so we can get an accurate read on potential issues.
EX: Guitar > TS-1 >PS-2A Amp In (anything in the PS FX loop?) > (brand/type) speaker cab.

Thanks,

Dave

4

Hi David, the signal chain normally is:
Guitar > Pedal board (drives) > TS1 > PS-2A > Pedal Board (Reverb, Delay) > PS-2A > Two 2x12 cab
However, I’m having the same issues without anything in the PS-2A FX Loop and without the pedal board in the chain.