The Supro Thunderbolt S6420 was originally intended to be a bass amp, with 35 watts of tube power and a single 15" Jensen speaker. It was marketed as a no-frills workhorse and made famous by Jimmy Page, who used one early in his career.

A hot-rodded version of the reissued Thunderbolt, the Supro S6420+ Thunderbolt Plus tube guitar amplifier features a 3-way rectifier switch option for more headroom and versatility. Like the Fender Bassman, the Thunderbolt was originally intended to be a bass amplifier.

Make/Model: Supro Thunderbolt S6420+ Serial #: 00377; Watts: 35w, 45w, 60w; Tubes: 2x6L6, 2x12AX7; Weight: 49.4lbs; Dimensions: 24x21x9.5" Speakers: Supro TB15 1x15" Features: Condition: This is a wonderful amp that sounds great!

The Supro S6420+ Thunderbolt Plus Combo Guitar Amplifier Features: 35-watt cathode-biased 6L6 output section delivers plenty of tone and volume 1 x 15" custom designed Supro TB15 speaker delivers classic vintage sound

The 1 x 15" custom Supro TB15 speaker is designed to deliver the classic vintage sound that has made Supro amps so desirable. One of the standout features of the S6420+ is its 3-way rectifier switch, which expands the amp's versatility.

Oct 21, 2014 · Owning an original would soon become tiresome if it broke down on you every month. Our modern Supro is ready to earn its keep night after night on tour playing those Blues clubs up and down the land and it shouldn't let you down! Our …

Two knobs and the truth: The legendary 1964 “Blue Rhino Hide” Supro Thunderbolt is back. Renowned for its bold, full-range sound and up-front, honest midrange, the Thunderbolt covers a remarkable spectrum of vintage tone while wringing every ounce of personality from whatever guitar is plugged in.

Supro’s Thunderbolt S6420+ Price: $1,599 (list) Contact: www.suprousa.com. Upon introduction in 1964, the Valco-made Supro Thunderbolt Model S6420 was a misfit. Like Fender’s 4×10 Bassman, it was designed “exclusively for the electric Bass guitar [sic],” according to …

Simplistic, sporting only a tone and volume control, the Supro S6420 Thunderbolt tube guitar amplifier's cathode-biased 6L6 output section produces 35 watts of pure rock 'n' roll power. Gorgeous, shimmery clean tones break up exquisitely when you drive it.

Here we have in this listing, the famous Supro Thunderbolt S6420 1x15 combo in its original blue "rhino hide" covering. This amp was originally designed for bass guitar. But, as most amps of similar design from the late 50's to late 60's, the bass sounded mediocre at best on this amp.