The 1650RT Royal Reverb is the flagship tube amplifier of the Supro
line. This retro-modern masterpiece updates the mid 60’s classic with an
all-tube feature set designed to deliver superior sonic flexibility and
ample headroom along with enough stage volume to handle any gig.
The blue rhino hide tolex, compact physical dimensions and
fundamental circuit topology are all derived from the original 2×10
Supro Royal Reverb combo amplifier. Like its vintage counterpart, the
new Royal Reverb’s power tube tremolo comes after the reverb pan,
lending an ethereal shake and wobble to the enveloping wash of
tube-driven spring reverb.
Independent TREBLE and BASS controls in the preamp provide enhanced
tonal control while our unique, 3-way switchable power scheme allows the
musician to coax a wide variety of texture from the 6L6-fueled power
amp. The 35-Watt Class A (Cathode Bias) and 45-Watt Class AB (Grid Bias)
modes both deliver the more spongy character of the 5U4 tube rectifier
while the 60-Watt Class AB mode makes use of a silicon rectifier to
achieve faster transient response with maximum available headroom and
volume.
The unique Class A / Class AB switchability of the Royal Reverb model
effectively equips this amp with two distinct tremolo voices. Set to
Class A mode, the tremolo is pure vintage Supro, with its distinctive
asymmetrical rhythm and overall depth dependant on how hard the output
tubes are being pushed. Set to Class AB mode, the tremolo gets much
deeper, with greater symmetry and overall range of amplitude modulation.
The Supro Royal Reverb carries a long, six-spring reverb pan with
all-tube reverb drive; recovery stages provide warm and smooth ‘verb
that “surrounds the note.” From subtle ambience to massive splashing
surf madness, the Royal Reverb lives up to its name in every way.