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现货|美国 Mcintosh 麦景图 MA7900 合并式功放 全新行货        Electronic Specifications
Power Output per Channel200 Watts Speaker Impedance2, 4, or 8 Ohms Rated Power Band20Hz to 20kHz Total Harmonic Distortion0.005% Dynamic Headroom2dB Frequency Response +0,-0.5dB20Hz to 20kHz Frequency Response, +0, -3dB10Hz to 100kHz Sensitivity Phono (Moving Coil)0.25mV Sensitivity Phono (Moving Magnet)2.5mV
Sensitivity High Level (Balanced / Unbalanced)0.5V/0.25V Sensitivity (Power Amp)1.4V Signal To Noise Ratio (Moving Coil)82dB Signal To Noise Ratio (Moving Magnet)84dB Signal To Noise Ratio (High Level)95dB Signal To Noise Ratio (Power Amp)113dB Input Impedance (Balanced / Unbalanced)20K/20K Damping Factor>40 Maximum Output (Balanced / Unbalanced)8V Unbalanced
Connectivity
Headphone OutputYes, High Drive High Level Inputs Unbalanced6 Stereo High Level Inputs Balanced1 Stereo Variable Outputs Unbalanced2 Stereo Variable Outputs Balanced0 Digital USB Input1
Digital Coaxial Input1 Digital Optical Input1 Phono Moving MagnetYes Phono Moving CoilYes AM/FM Tuner optionNo Home Theater Pass ThroughYes
Control
Tone Controls5-Band Tone Bypass and Input AssignYes RS232 Control InputYes Power Control OutputYes
Rear Panel Data PortsYes Rear Panel IR Sensor InputYes Input Level MatchYes
General Specifications
Dual Layer ChassisYes Output MetersYes Tube or Solid StateSolid State
Power Requirement120V 50/60Hz, 4.8A Standby Power Requirement<0.25 Watts Output AutoformerYes
Weights & Dimensions
Dimensions (W x H x D)17-1/2" (44.45cm) x 7-5/8" (19.37cm) x 22" (55.88cm) Weight75 lbs (34.1 kg)
Shipping Weight93 lbs (42.3 kg)
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