SPEC RSA-M99 amplifier

RSA-M99 features sophisticated and expressive sound oozing with musicality.

Brochure:  RSA-M99_EN_web


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RSA-M99 features sophisticated and expressive sound oozing with musicality.

An amplifier is a musical instrument

At the core of our concepts is the idea that the amplifier is a musical instrument. By supporting the chassis with a combination of woods, RSA-M99 reproduces a beautiful sound like a genuine musical instrument. A wide, solid spruce board is closely attached to the entire bottom surface of the chassis. Spruce is the same type of wood used to build violins.Wooden feet of maple with hickory embedded in the center. These foot pieces are designed in such a way that only the hickory located in the center is grounded. Wooden soundboard with wooden feet vibrate with the audio signal playing a natural sound.

Beautiful soothing rings of warm yellow lighting

The yellow rings of light emitting from the volume control knob and input selector will contribute to a relaxing ambiance in any setting.


Maximum output 120 W × 2 (4Ω)
Frequency response 10 Hz – 30 kHz ±1dB (6Ω, 1W)
Harmonic distortion ratio 0.02% (at 1 kHz, 80% output)
Input sensitivity, gain 300 mVrms, 37.3 dB (at MAX volume, 6Ω, 1kHz, unbalanced input)
Line input terminals XLR input: 2 RCA inputs: 3
Speaker terminal 1
Electrical consumption With no signal: 15 W, during maximum output: 215 W (8 Ω, 100 Hz)
External dimensions 440 mm (width) × 125 mm (height) × 414 mm (depth)
Weight 15.5 kg
Included items
Power cord 1
Operation manual 1