Supro Jupiter 1668RT 60/45/35-watt 1x12" Tube Combo Amp - Blue Rhino SN0125
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Excellent condition, totally stock and no mods. This Amp Sounds Amazing and Works Perfectly.
Supro Jupiter 1668RT
The Jupiter model features a unique switchable rectifier topology, allowing musicians to select 35-Watts (Class A) or 45 / 60 watts (Class AB) to suit the gig at hand. The 35 watt cathode bias mode uses the legendary Thunderbolt power amp topology for a harmonically saturated, tube-rectified sound that combines wonderfully with this 1×12” platform. The 45 and 60 watt grid bias modes provide more volume and headroom as well as the faster transient response associated with Class AB power amps.
The switchable power amp topology of the Jupiter not only allows for players to change the texture and output volume of the amp but it also provides two very different, all-tube tremolo effects depending on whether Class A (cathode bias) or Class AB (grid bias) mode is selected.
The cathode bias tremolo is vintage Valco/Supro all the way, where the overall depth of the effect changes along with the dynamics of your playing. The grid bias tremolo is gives a much deeper, stronger and more pronounced throbbing effect. Since the tremolo is performed by modulating the bias of the output tubes, the reverb necessarily comes before the tremolo effect, for a mesmerizing combination of pure tube reverb and tremolo when both effects are combined.
The Jupiter amp comes equipped with a brand-new, state of the art, USA made HP12 speaker that was designed specifically for this model. The HP12 speaker is a unique driver that provides superior power handling due to a larger magnet and a hemp cone. This speaker’s distinctively smooth character remains sweet, no matter how hard you push it, delivering a full bodied woody tone that has no equal in the world of guitar speakers.
Switchable Class-A (35 Watts) or Class-AB (45 / 60 Watts)
Independent BASS and TREBLE controls
Tremolo depth and speed controls
Tube Rectifier (35 / 45 Watts)
Silicon Rectifier (60 Watts)
V1 12AX7 INPUT (JJ ECC83S)
V2 12AX7 REVERB/MAKE UP GAIN (JJ ECC83)
V3 12AX7 TREMOLO (TUNG SOL 12AX7)
V4 12AT7 REVERB DRIVER (JJ ECC81)
V5 12AX7 PHASE (JJ ECC83S) INVERTER
2x 5881 / 6L6 POWER TUBES (SOLVTEK 5881/6L6WGC)
1x 5U4GB RECTIFIER TUBE (ELETRO HARMONIX 5U4GBEH)
1 x 12″ Supro HP12 Exclusive HEMP CONE speaker
23 5/8” x 16” x 10 1/2” – 60 x 41 x 27 cm
54 lbs – 24.5 kg
Exclusive Supro Blue Rhino Hide tolex