I bought my Red Knob “The Twin” new in December of 1990.. I used it for guitar for many years but it never saw much outside the house use..So since about 2006,, I’ve been using it for pedal steel guitar on occasion, but was never happy with the sound of it with the 2×12″ Fender special design speakers in it…So,recently , for something different,, I temporarily hooked up this amp to a 15″ Fender Special .Design Eminence 4 ohm speaker that resides in my Fender Steel King amp…Well that was IT !!.. The sound I’ve been looking for , for years..Nothing beats the sound of a tube amp with a 15″ speaker for pedal steel guitar.So now,, The red knob Twin has a single 15″ Fender speaker in it replacing the 2×12’s..This makes this amp the equivilant of the Fender ’65 Custom 15 they used to make years ago..I had to modify the cabinet to take the 15″ speaker, but I don’t ever plan to sell it now, so it’s a keeper for life… This amp has never let me down, and with an occasional checkup and normal tube replacement,is probably the best amp I’ve ever owned in my 60 years of playing..It IS heavy though, but I’ve modified a dolly to help move it..It’s the only amp I’ll ever need for pedal steel guitar,, and guitar as well..It’s 31 years old and still chugging along..

Proud owner of a Red Knob and I love it! Got MIne for 400€ in a not so pristine condition, but it plays perfectly! Actually missing a couple knobs. Does anyone knows where to find a replacement, or even better, replace them all with black knobs? Do they match?

I’ve had a Red Knob still have a mint Blk Knob. I worked for a music store and noticed when Fender bought Sunn and started putting Fender logo’s on their pa boards etc. Pretty sure the same happened with this amp, I’ve seen an identical Sunn amp. I think this explains the tone difference as your traditional Fender Twins where cleaner sounding. I happen to like both but the old ones/current traditional design more for clean and pedals, while the The Twin can stand on its own with a decent clean and overdrive. Kinda neat with the 2 channel separate in parallel choice; or the 2 in series drive.

This amp has been my right arm for many years. It is damn heavy, but I call it 80lbs of tone. I don’t take it on the road much as I do a lot of fly dates but play a lot with it locally and regionally. I have used everything under the sun for backline, but every time I get home and plug this thing in it feels like home. Lots of power and I love that I can plug any guitar into it and I feel like the character of the guitar is the feature. I run a pretty neutral sound and I use stomps for dirt for the most part. I pulled both the center tubes out and leave it at the 100W setting. To my ears the lower power settings don’t make it less loud (It is loud af) it just seems to saturate earlier. The trick for me was to use both channels at the same time. There is an input that blends both channels which works great for me. I run the dirtier channel just before breakup and if I need it a bit cleaner, I just dial out Ch 2 or turn up ch 1. Highly recommend.

I’ve had my “The Twin” for many years but as it is mainly a bedroom amp at the moment I thought I’d try (as the manual says) taking out the middle two power tubes. Yes, it still works and yes it is now a bit easier to find a comfortable volume level. This amp is still an amazing piece of kit but now doesn’t scare off the cat so easily.