I gigged with a GK1001RB for years until it died, through a variety of cabinets. I bought a PF-500 and absolutely love it. I never bonded with the GK and had to use a Sansamp to get the character of low end I like. Not needed with the PF-500. It takes me back to my SVT days in the late 70's, early 80's.
In the late 80's I built a tube preamp. I put in everything I wanted, three band passive EQ with mid slope control, voicing switches, and four band active EQ. I used to use it with a big biamped rig.
I got it out the other day and tried it through the PF-500 power amp. It was glorious. I tweaked the controls to the tone I wanted. It can produce some tube compression depending on how it's set up (Volume, an interstage gain and master.)
Then I wired things up so I could switch between the tube preamp and the PF-500 preamp. Dang if the PF-500 didn't match the tone I had set up on the tube preamp. The PF compressor copped the slight but noticeable tube compression exactly.
I had considered using that great tube preamp again, but don't need it. The designs (gain staging, baxandall bass and treble, active mid circuit in the PF...all SS) of each are so different, but the resulting tone is so very close, there's no need to mess with the tube preamp.
I carry a back up amp to gigs, usually a class D Peavey PA head with two 600 watt power amps, and my Sansamp to go into the power amps if my bass head goes down (It is a PF-500) but I'll start bringing my tube preamp instead of the Sansamp.
In the late 80's I built a tube preamp. I put in everything I wanted, three band passive EQ with mid slope control, voicing switches, and four band active EQ. I used to use it with a big biamped rig.
I got it out the other day and tried it through the PF-500 power amp. It was glorious. I tweaked the controls to the tone I wanted. It can produce some tube compression depending on how it's set up (Volume, an interstage gain and master.)
Then I wired things up so I could switch between the tube preamp and the PF-500 preamp. Dang if the PF-500 didn't match the tone I had set up on the tube preamp. The PF compressor copped the slight but noticeable tube compression exactly.
I had considered using that great tube preamp again, but don't need it. The designs (gain staging, baxandall bass and treble, active mid circuit in the PF...all SS) of each are so different, but the resulting tone is so very close, there's no need to mess with the tube preamp.
I carry a back up amp to gigs, usually a class D Peavey PA head with two 600 watt power amps, and my Sansamp to go into the power amps if my bass head goes down (It is a PF-500) but I'll start bringing my tube preamp instead of the Sansamp.
