Guitar Archeology

I was having trouble keeping all the Sunn artists happy. The relationship with the Jimi Hendrix Experience was up and down. Noel Redding loved his Sunn gear and rarely missed a chance to talk it up in the music press. Jimi however was up and down. Giving Sunn one of the biggest engineering tips in its history, he informe…d them that the Coliseum PA head, at 120 watts RMS was a better guitar amplifier than the 100S at 60 watts RMS. There was a lot of confusion about power ratings about this time because the English marketed their amplifiers using Peak Power ratings whereas American manufacturers used RMS Power ratings. So, a British amp that was rated at 200 watts might actually be less powerful than an American amp at 60 watts. The 60 watt Sunn amps had a peak power of 250 watts. Unfortunately, most players couldn’t get their heads around this problem and approached it by simply opening it up all the way to see how loud it was. Sunn took Jimi seriously and introduced a 1000S guitar amp and a 2000S bass amp, both essentially revamped Coliseum power heads. The Sunn engineers also tried to outsmart Jimi with a little internal tweaking. As noted, Jimi turned the volume all the way up to ten to play. When the engineers did this at the factory it was like fingernails across a very loud blackboard. They heard the thing audio engineers loathe most; noise. How could Hendrix stand all that distortion? They solved the problem by adjusting the volume knob to read 10 when the amp was only really at 8, which, is about where the distortion started. To the engineers this was brilliant. Jimi could twist that knob wide-open to 10 and the unit would deliver a cleaner, more acceptable sound. I was there when Jimi got his new 1000S set-up. It took him about 30 seconds to figure out what was happening. Cleaner was not what Jimi was looking for. Note to the factory: “distortion” is no longer a bad word. This incident was reported extensively in Guitar Player magazine and reprinted in the liner notes of The Essential Jimi Hendrix. As it says in the liner notes: “Soon thereafter, Jimi went back to Marshalls”. And Spinal Tap turned it up to eleven.