产品简介：

NAD全新推出一款面向模拟/数码广播的Masters Series M4收音座，该款调谐器提供有FM/AM收音及XM卫星广播接收能力，M4收音座定位于高级音响的市场，提供40组电台记忆，采用了NAD工程师新设计的FM信号接收固件，能在信号相对微弱的地区同样有好的电台接收效果。因为面向的是数码接收，所以配置了高品质的数码解码电路，TI/Burr-Brown解码芯片为高音质输出提供保证。

产品规格：

40 Preset Station Memory 
RDS function displays Station ID and Radio Text from broadcast compliant stations 
FM Mute eliminates inter-station tuning noise 
FM Blend reduces noise of distant or “fringe” stations by reducing high frequency separation 
High sensitivity AM tuner 
Supports DAB Band III and L Band (230V version) 
XM Ready input for external XM Satellite module (120V version) 
Audiophile quality Burr Brown Digital to Analogue converters 
Audio specific Burr Brown OP Amps 
Separate power supplies for Digital Control and Audio stages 
RS-232 port interfaces with external control systems (Crestron and AMX certified) 
Rear panel IR Input allows easy interface to external IR sensors 
NAD Build Artistry construction 
M4 Remote Control 
FM Tuner 
Capture ratio (FM) 3 dB 
Image Rejection 85 dB 
Signal/Noise: mono 72 dB 
Signal/Noise: stereo 66 dB 
IF Rejection 78 dB 
Channel separation @1kHz 42 dB 
Frequency response ±1.5dB (20 Hz - 15 kHz) ±1.0 dB 
AM Tuner 
Useable sensitivity 30dBμ 
Selectivity 17dB 
Image Rejection 28dB 
IF Rejection 36dB 
Signal/Noise Ratio 38dB 
Harmonic Distortion 3% 
DAB Tuner 
Tuning Range: Band III 174MHz – 240MHz 
Tuning Range: L Band 1452 - 1492MHz 
Sensitivity: Band III -100dBm typical 
Sensitivity Range: L Band -97dBm typical 
Signal/Noise 100dB 
Frequency Response ±0.3dB 
Physical Specification 
Dimensions (W×H×D) Imperial 17 1/8 x 3 7/8 x 11 4/5” 
 Metric 435 x 100 x 300mm 
Gross Dimensions (W×H×D) Imperial 17 1/8 x 4 1/2 x 12 1/4” 
 Metric 435 x 115 x 312mm 
Net Weight Imperial 19.75 lbs 
 Metric 8.97kg 
Shipping Weight Imperial 31.5 lbs 
 Metric 14.3kg

* NAD reserves the right to change specifications or design at any time without notice. All specifications are those in effect at time of printing.