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The Octave MRE 220 SE is a state-of-the-art mono tube power amplifier designed for audiophiles seeking exceptional sound quality and power. It uses four KT88 S4A Carbon tubes as standard, with optional upgrades to KT120 or KT150 tubes for higher power output and tonal refinement. The amplifier delivers 200W average and 220W peak power into 4 ohms, with a frequency response of 20 Hz to 70 kHz at full power. It features a unique adjustable damping factor to optimize interaction with various loudspeakers, ensuring rock-solid reproduction quality. The MRE 220 SE includes advanced bias control with LED confirmation and a soft-start protection system to extend tube life. Inputs include balanced XLR and single-ended RCA, with speaker outputs suitable for banana plugs and cable lugs. The amplifier is built with double-sided PCBs, ceramic tube bases with silver contacts, and low-inductance electrolytic capacitors for reliability and performance. Optional accessories include the Super Black Box power supply stabilizer and KT150 tube upgrade. Dimensions are 488 x 229 x 412 mm, and it weighs approximately 29.8 kg per unit. The amplifier is manufactured in Germany and comes with a 5-year warranty on parts and labor.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Estimated price (community-sourced)
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The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The MB-450 Series III Signature's power @ 8ω is 425W against the MRE 220 SE's 200W, its signal-to-noise 110 dB against 116 dB, its power @ 4ω 425W against 220W, and its damping factor 4 against 8.
Both turn up in the same documented systems.
The Reference 160S's power @ 8ω is 140W against the MRE 220 SE's 200W, its signal-to-noise 113 dB against 116 dB, and its damping factor 14 against 8. Both share class (Tube).
The Grandioso M1X's power @ 8ω is 300W against the MRE 220 SE's 200W, its signal-to-noise 119 dB against 116 dB, and its power @ 4ω 600W against 220W. Both share input impedance (100000Ω).
The V 80 SE's power @ 8ω is 120W against the MRE 220 SE's 200W, its power @ 4ω 150W against 220W, and its signal-to-noise 100 dB against 116 dB. Both share class (Tube).
Convergent Audio Technology JL7HPA
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