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Curbside is available Mon. to Fri., 10am-4pm. In-store shopping by appointment only.

Supro 1675RT Rhythm Master 1 x 15" Switchable 35W 45/60W

by Supro
Save 16%
Original Price $3,099.95
Current Price $2,599.95

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Supro 1675RT Rhythm Master 1 x 15" Switchable 35W 45/60W

For those players who love the huge, bold sound of the 1_15Ó Thunderbolt amp, but need a lush, all-tube reverb to fill out their sound, Supro presents the 1675RT Rhythm Master amplifier. Rooted in Supro tradition, this vintage inspired model is loaded with independent bass and treble controls, six-spring long pan reverb, output tube tremolo and switchable Class A / Class AB power amp wiring for 35, 45 or 60 watts of vintage American tone.

The Rhythm MasterÕs USA made custom 15Ó driver is the most accurate and true sounding 15Ó guitar speaker on the market, with a full, broadband sound that is never muddy. To create this signature speaker, we worked with Eminence to combine the best elements of our favorite vintage 15Ó speakers (Jensen C15PS & JBL D130) with modern construction methods and materials to achieve a vintage voiced driver with superior power handling and juicy bottom end. The unique power amp topology of the Rhythm Master 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.
  • Switchable Class-A (35 Watts) or Class-AB (45 / 60 Watts)
  • Independent BASS and TREBLE controls
  • All-tube reverb
  • Output-tube tremolo
  • Tube or Silicon Rectifier
  • 4x 12AX7
  • 1x 12AT7
  • 2x 5881 / 6L6 power tubes
  • 1x 5U4 Tube Rectifier
  • 1_15 Supro TB15 speaker
  • Cab Size: 23 5/8Ó x 19Ó x 10 1/2Ó
  • Blue Rhino Hide tolex
  • 45lbs
  • Assembled in USA
  • Engineered by Bruce Zinky, Thomas Elliott and David Koltai