Amplifier 擴音機 / Yamaha / A-S2100

Advanced original amplifier circuitry and elimination of signal loss—resulting in a trulyemotional and dynamic sound. This is a high-grade integrated amplifier that has inheritedthe new sound of Yamaha in the pursuit of rich musicality.


Floating and Balanced Power Amplifier with MOSFETs
All-stage fully discrete construction, balanced transmission and low impedance design
Superior quality electronic volume control for optimum sound
Large capacity power supply unit delivers energetic, dynamic sound with fast response
Symmetrical design in pursuit of ideal stereo reproduction
Discretely configured phono amp
Headphone amp with fully discrete configuration
Level meters visually reflect the dynamics in the music
Elegant design with luxurious real wood panels
Original speaker terminals combine ease of use and beauty with high sound quality


Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe) 160 W + 160 W
High Dynamic Power/Channel (8/6/4/2 ohms) 105/135/190/220 W
Damping Factor 250
Frequency Response 5 Hz-100 kHz (+0 dB/-3 dB)
RIAA Equalization Deviation 20 Hz-20 kHz +/-0.5 dB
Total Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz) 0.025%
Signal-to-Noise Ratio (CD) 103 dB (S: 200 mV)
Input Sensitivity (CD) 200mV/47k ohms
Dimensions (W x H x D) 435 x 157 x 463 mm; 17-1/8” x 6-1/8” x 18-1/4”
Weight 23.4 kg; 51.6 lbs.