I bought a GTSS for a GZ34 and plugged it into my 6545.
The amp was a little louder, and a little chrunchier when cranked. The tone was a little colder to my ears. Big difference in loss of compression.
I only had the GTSS in for an hour before I put the GZ34 back in. Somehow I find the amp is a little sweeter sounding with the tube rectifier.
It's all personal taste. Some people notice a difference and some don't. Buy one, stick it in and try it.
I think these are good to have as a back up for your tube. Small enough to throw in your guitar case, more durable that an extra tube, and mine was affordable at $22 cnd. Easy to swap into your amp in a pinch.
This section of my website was updated with cleaner charts and was put into the latest version of the Tube Amp Book, the hard cover coffee table version that also has the CD with about 800 amp schematics - www.groovetubes.com/product.cfm?Product_ID=2065
GuitarZ: Ugh! Dropped small nut while installing new outside lamp. Thought I saw where it landed. Couldn't find it. Moved the car & such. Engineering mind said, drop another (after ~hour). Bang! Within 5 seconds. Nut found! Yea! Wife Impressed!
Apr 5, 2020 16:44:09 GMT -7
GuitarZ: Bells & Whistles-New Cars. A year with our Subaru Outback, finally realized doors have to be unlocked for inside rear hatch button to work. Dang! I need that feature for social distancing. Looked like an idiot pulling up & jumping out to manually open.
Apr 11, 2020 8:13:15 GMT -7
roscoenyc: Truss rod, 1/4 turn at a time.
Apr 22, 2020 8:49:12 GMT -7
GuitarZ: Here's a laugh. Got a Vodka delivery for the Mrs. Had to show ID. Taped my license on the end of my 20'telescoping pole. Driver got a laugh along with me and the Mrs.
Apr 22, 2020 14:05:01 GMT -7
bugman: Hello! I’m new here and looking forward to learning a lot
Apr 26, 2020 17:57:53 GMT -7
groovergeorge: I'm back after quite a long hiatus. Jut a shout out to all my old friends from years back and hi to all the new members.
Apr 27, 2020 6:22:16 GMT -7
GuitarZ: Best Pandemic Comment - Delivery guy shows up. As we're social distancing, I look at myself in brown loafers, black socks, gym shorts, t-shirt and say "I realize this is not my best look". His response "You can wear whatever you want to the apocalypse."
May 1, 2020 14:39:30 GMT -7