91-01 300B SET Monoblocks vs Aric Audio Super 300B SET
The Super 300B SET's output voltage is 1.5V RMS against the 91-01 300B SET Monoblocks's 0.5V RMS and its output impedance 100000Ω against 8Ω. Both share power @ 8ω (9W) and class (Tube).
AI-generated product photo — not official manufacturer imagery.
91-01 300B SET Monoblocks
Sophia ElectricAmplifiersTube AmplifiersPower Amplifiers
Estimated price (community-sourced)
$5,995
Around — community and catalog average, updates slowly
About the 91-01 300B SET Monoblocks
The Sophia Electric 91-01 300B SET Monoblocks are hand-built, single-ended, directly heated triode power amplifiers designed around one 300B output tube per monoblock. The circuit operates without global negative feedback and uses a 6SN7 dual-triode driver and 5Z3PA full-wave rectifier. Sophia Electric designs and manufactures the power and output transformers in-house. The amplifier uses autobias, separate heater hum-adjustment controls, and transformer-coupled speaker outputs for 4- and 8-ohm loads. The standard model is rated at approximately 8–9 watts per monoblock, making it most appropriate for efficient loudspeakers. Available documentation also describes a Super Quiet version and later Signature 91-01 variants; those should not be assumed identical to the standard model.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 9W @ 8Ω
- Amplifier Class
- tube
- Input Sensitivity
- 0.5V RMS
- Input Impedance
- 200000Ω
Analog Output
Analog signal output specifications
- Output Voltage
- 0.5V RMS
- Output Impedance
- 8Ω
Connectivity
Input and output connections
- Digital Inputs
- analog line-level input
- Analog Outputs
- speaker binding posts with 4-ohm and 8-ohm taps, AC mains input
Key Specifications
Power: 9W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions