Amplifier Type: Class A Tube Guitar Combo
Controls: Volume, Treble, Bass, Master, Standby Switch, Power Switch
Bypass Layout: Transparent Buffered Effects Loop (Send/Return)
Power Requirements: Standard IEC AC Cable (110V-240V regional configuration)
Current Draw: Mains Powered (No mA pedal power threshold applies)
Dimensions: 19.22 x 9.44 x 14.00 inches / 488 x 240 x 355 mm
The foundational blueprint of this amplifier utilizes a completely analog signal path engineered in direct partnership with Robert Keeley of Keeley Electronics. The preamp architecture features two ECC83S vacuum tubes configured to optimize input gain tolerances, managing the high voltage transients of boost and drive circuits without clipping the initial staging prematurely. This pristine input stage hands off to a Bruce Zinky-designed power section utilizing two Tung-Sol 6V6GT power tubes running in a true Class A, cathode-biased configuration. Operating without solid-state compromises, the circuit tracks your playing dynamics natively, converting high-headroom input signals into standard-setting midrange thickness and organic compression before forcing the speaker cone into asymmetric breakup.
The top-mounted control interface removes complex routing obstacles to provide a linear, responsive workspace for tone-shaping. A single Volume knob determines the raw input tracking of the ECC83S tubes, driving the front-end compression from clean to natural bluesy grit. This feeds into a custom-voiced 2-band equalizer network that controls Bass and Treble frequencies without robbing the amplifier of its core midrange identity. The transparent, buffered effects loop splits the preamplifier section cleanly from the power section, routing modulation, delay, and reverb units safely away from early clipping. Finally, the Master volume knob lets you push the front-end tubes hard for saturated harmonic generation while safely governing the output sound pressure level of the 10-inch Celestion G10 Creamback driver.
In a studio environment requiring multi-tiered overdrive, fuzz, and distortion chains, this amplifier maintains a solid structural foundation. Place a transparent compressor and a mid-focused overdrive pedal straight into the high-impedance instrument input. Set the amplifier volume knob around 9:00 to keep the preamp stage linear, and dial the Treble and Bass controls to 12:00. This configuration utilizes the massive input headroom to preserve the exact frequency footprint of your pedalboard, preventing heavy fuzz boxes from collapsing into muddy low-end frequencies while the Celestion Creamback preserves a punchy, focused transient attack.
For ambient, shoegaze, or post-rock soundscapes that rely on clean power-amp saturation mixed with pristine spatial imaging, tap directly into the onboard patch bay. Route your time-based delay and algorithmic reverb processors exclusively through the 1/4-inch Send and Return jacks of the transparent effects loop. Crank the front-end Volume control past 2:00 to force the preamp tubes into smooth harmonic overdrive, then set the Master control to match your room volume. The ambient reflections remain crystal clear and free from intermodulation distortion because they enter the circuit after the preamp stage, allowing the power amp to add warm 6V6 tube compression to a wide, expansive soundstage.
IMPORTANT SAFETY AND MAINTENANCE WARNINGS: HIGH VOLTAGE RESIDUE INSIDE CHASSIS. DO NOT ATTEMPT TO SERVICE TUBES OR INTERNAL COMPONENTS WITHOUT UNPLUGGING THE IEC AC CABLE. ALLOW ALL VACUUM TUBES TO WARM UP IN STANDBY MODE FOR AT LEAST ONE MINUTE BEFORE ENGAGING THE HIGH VOLTAGE STANDBY SWITCH TO PREVENT PREMATURE HEATER CATHODE DAMAGE. ALWAYS CONFIRM AN 8-OHM SPEAKER LOAD IS FIXED TO THE MAIN SPEAKER OUTPUT BEFORE OPERATING THE AMPLIFIER TO PREVENT MASSIVE OUTPUT TRANSFORMER FAILURE. WARNING: THIS PRODUCT CAN EXPOSE YOU TO CHEMICALS INCLUDING LEAD, WHICH ARE KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS, OR OTHER REPRODUCTIVE HARM. KEEP VENTILATION SLOTS CLEAR OF OBSTRUCTIONS TO PREVENT THERMAL OVERLOAD. WARRANTY IS VOID IF ALTERATIONS, CIRCUIT MODIFICATIONS, OR UNAUTHORIZED SOLID-STATE COMPONENT PATH REPLACEMENTS ARE PERFORMED.
Amplifier Type: Class A Tube Guitar Combo
Controls: Volume, Treble, Bass, Master, Standby Switch, Power Switch
Bypass Layout: Transparent Buffered Effects Loop (Send/Return)
Power Requirements: Standard IEC AC Cable (110V-240V regional configuration)
Current Draw: Mains Powered (No mA pedal power threshold applies)
Dimensions: 19.22 x 9.44 x 14.00 inches / 488 x 240 x 355 mm
The foundational blueprint of this amplifier utilizes a completely analog signal path engineered in direct partnership with Robert Keeley of Keeley Electronics. The preamp architecture features two ECC83S vacuum tubes configured to optimize input gain tolerances, managing the high voltage transients of boost and drive circuits without clipping the initial staging prematurely. This pristine input stage hands off to a Bruce Zinky-designed power section utilizing two Tung-Sol 6V6GT power tubes running in a true Class A, cathode-biased configuration. Operating without solid-state compromises, the circuit tracks your playing dynamics natively, converting high-headroom input signals into standard-setting midrange thickness and organic compression before forcing the speaker cone into asymmetric breakup.
The top-mounted control interface removes complex routing obstacles to provide a linear, responsive workspace for tone-shaping. A single Volume knob determines the raw input tracking of the ECC83S tubes, driving the front-end compression from clean to natural bluesy grit. This feeds into a custom-voiced 2-band equalizer network that controls Bass and Treble frequencies without robbing the amplifier of its core midrange identity. The transparent, buffered effects loop splits the preamplifier section cleanly from the power section, routing modulation, delay, and reverb units safely away from early clipping. Finally, the Master volume knob lets you push the front-end tubes hard for saturated harmonic generation while safely governing the output sound pressure level of the 10-inch Celestion G10 Creamback driver.
In a studio environment requiring multi-tiered overdrive, fuzz, and distortion chains, this amplifier maintains a solid structural foundation. Place a transparent compressor and a mid-focused overdrive pedal straight into the high-impedance instrument input. Set the amplifier volume knob around 9:00 to keep the preamp stage linear, and dial the Treble and Bass controls to 12:00. This configuration utilizes the massive input headroom to preserve the exact frequency footprint of your pedalboard, preventing heavy fuzz boxes from collapsing into muddy low-end frequencies while the Celestion Creamback preserves a punchy, focused transient attack.
For ambient, shoegaze, or post-rock soundscapes that rely on clean power-amp saturation mixed with pristine spatial imaging, tap directly into the onboard patch bay. Route your time-based delay and algorithmic reverb processors exclusively through the 1/4-inch Send and Return jacks of the transparent effects loop. Crank the front-end Volume control past 2:00 to force the preamp tubes into smooth harmonic overdrive, then set the Master control to match your room volume. The ambient reflections remain crystal clear and free from intermodulation distortion because they enter the circuit after the preamp stage, allowing the power amp to add warm 6V6 tube compression to a wide, expansive soundstage.
IMPORTANT SAFETY AND MAINTENANCE WARNINGS: HIGH VOLTAGE RESIDUE INSIDE CHASSIS. DO NOT ATTEMPT TO SERVICE TUBES OR INTERNAL COMPONENTS WITHOUT UNPLUGGING THE IEC AC CABLE. ALLOW ALL VACUUM TUBES TO WARM UP IN STANDBY MODE FOR AT LEAST ONE MINUTE BEFORE ENGAGING THE HIGH VOLTAGE STANDBY SWITCH TO PREVENT PREMATURE HEATER CATHODE DAMAGE. ALWAYS CONFIRM AN 8-OHM SPEAKER LOAD IS FIXED TO THE MAIN SPEAKER OUTPUT BEFORE OPERATING THE AMPLIFIER TO PREVENT MASSIVE OUTPUT TRANSFORMER FAILURE. WARNING: THIS PRODUCT CAN EXPOSE YOU TO CHEMICALS INCLUDING LEAD, WHICH ARE KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS, OR OTHER REPRODUCTIVE HARM. KEEP VENTILATION SLOTS CLEAR OF OBSTRUCTIONS TO PREVENT THERMAL OVERLOAD. WARRANTY IS VOID IF ALTERATIONS, CIRCUIT MODIFICATIONS, OR UNAUTHORIZED SOLID-STATE COMPONENT PATH REPLACEMENTS ARE PERFORMED.
