All
Power amplifiers mono — Esoteric Grandioso M1X
Description, images, technical data and specifications
Esoteric Grandioso M1X
Image source — © Esoteric
The Grandioso M1X is a flagship mono power amplifier from Esoteric, a Japanese manufacturer with a considerable reputation for uncompromising engineering, built with substantial output and exceptionally clean measured performance. The Grandioso M1X represents Esoteric's most ambitious current statement in monoblock power amplification.
Key specs that matter
Input impedance is a high 100k ohms balanced or 10k ohms single-ended. Output power is a substantial 300W into 8 ohms, doubling cleanly to 600W into 4 ohms - a textbook power doubling indicating a robust, well-regulated power supply. Gain is 28.5dBu. Frequency response spans a wide 5Hz to 100,000Hz within plus-or-minus 3dB. Signal-to-noise ratio reaches 119dB, with total harmonic distortion plus noise at 0.006% with full global feedback, and maximum power consumption at 400W. At 491 x 221.5 x 536mm and 62kg, the Grandioso M1X represents a substantial flagship monoblock commitment.
Sound and use context
Expect exceptional power delivery combined with clean measured performance reflecting the strong 119dB signal-to-noise and 0.006% distortion figures - Esoteric's uncompromising flagship-tier engineering is fully evident in this considerable specification.
Pairing
The clean power doubling into 4 ohms and high 100k ohm input impedance suit a wide range of loudspeaker sensitivities and preamplifier pairings.
Alternatives
Esoteric's broader amplifier catalogue offers alternatives for buyers wanting a different power output within the same uncompromising Japanese engineering philosophy.
Key specs that matter
Input impedance is a high 100k ohms balanced or 10k ohms single-ended. Output power is a substantial 300W into 8 ohms, doubling cleanly to 600W into 4 ohms - a textbook power doubling indicating a robust, well-regulated power supply. Gain is 28.5dBu. Frequency response spans a wide 5Hz to 100,000Hz within plus-or-minus 3dB. Signal-to-noise ratio reaches 119dB, with total harmonic distortion plus noise at 0.006% with full global feedback, and maximum power consumption at 400W. At 491 x 221.5 x 536mm and 62kg, the Grandioso M1X represents a substantial flagship monoblock commitment.
Sound and use context
Expect exceptional power delivery combined with clean measured performance reflecting the strong 119dB signal-to-noise and 0.006% distortion figures - Esoteric's uncompromising flagship-tier engineering is fully evident in this considerable specification.
Pairing
The clean power doubling into 4 ohms and high 100k ohm input impedance suit a wide range of loudspeaker sensitivities and preamplifier pairings.
Alternatives
Esoteric's broader amplifier catalogue offers alternatives for buyers wanting a different power output within the same uncompromising Japanese engineering philosophy.
Specifications
Model name
Grandioso M1X
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
100 000
Input impedance (single-ended) (Ω)
10 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
300
Output power (4Ω) (W)
600
Gain (dBu)
28.5
Frequency response low +/- 3dB (Hz)
5
Frequency response high +/- 3dB (Hz)
100 000
Signal to Noise Ratio (dB)
119
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
0.006
Max power consumption (W)
400
Damping factor
N/A
Dimensions (mm)
491 × 221.5 × 536
Weight (kg)
62
Official link