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  • 产品名称: LM-217IA 合并式功率放大器
  • 产品编号: LM-217IA
  • 上架时间: 2017-01-11
  • 浏览次数: 413

产品特点:
●纯手工制作,整机采用搭棚焊接
●采用二只优质宽频响高音质EI输出变压器
●使用专门为本机设计的EI型电源变压器
●前级使用12AX7和12AU7真空管各二只
●后级使用300B真空管做单端A类功率放大
●三极管工作方式,声音柔软、纯正和圆滑,适合欣赏人声、弦乐等类型的音乐;
●外设功率管电流调整钮和电流显示表头
●红外功能遥控器
●开机静音延时功能(约30秒)
●选用日本ALPS高档马达电位器
●方便安装的拔插式真空管防护罩
 
 
 技术参数:
-额定输出功率:8W+8W(RMS 三极管工作状态)
-整机频响:10Hz~50kHz(-1.5dB)
-谐波失真:1%(1kHz)
-信噪比:87dB
-输入灵敏度:180 mV
-输入阻抗:100kΩ
-输出阻抗:4Ω ,8Ω
-整机体积(WxDxH):( 376 x 345 x 191.5 )mm3
-使用真空管:12AX7 x2、12AU7 x2、300B x2、5U4G x1、5AR4 x1
-净重:19.6Kg
-整机消耗功率:90W
-工作条件:温度:0℃~40℃    湿度:20%~80%
-储存条件:温度:-20℃~70℃    湿度:20%~90%
 
 
Product features
●Hand-made construction with the finest point-to-point wiring.
●Specially designed EI transformer for power supply.
●Two EI output transformers with wide bandwidth are applied.
●Two 12AX7s and 12AU7s are used in the preamp stage.
●300B tubes are used for A single ended class a power amplifier.
●Provide the triode and superlinear selection function. Triode, voice soft, pure and
smooth, suitable for appreciation vocals, string and other types of music;
●Triode and Ultralinear selection.
●SoftStart and time-delay circuit. (30 seconds)
●ALPS volume control and Realcap capacitors are applied.
●Remote control for all functions.
●User bias control is accessible on top of the amplifiers panel with true ampere meter.
●Convenient installation drawing plug-in valve cap
 
 
 
Specification
-Power output:8W+8W(RMS Triode operation)
-Frequency response:10Hz~50kHz(-1.5dB)
-THD:1%(1kHz)
-S/N Ratio:87dB
-Input Sensitivity:180mV
-Input Impedance:100kΩ
-Output Impedance:4Ω ,8Ω
-Dimension (WxDxH): (376 x 345 x 191.5)mm3
-Tube Complement:12AX7 x2、12AU7 x2、300B x2、5U4G x1、5AR4 x1
-Net weight: 19.6kg
-Power Consumption:90W
-Working Condition: Temperature: 0℃~40℃ Moisture: 20%~80%
-Storage Condition: Temperature: -20℃~70℃ Moisture: 20%~90%