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LM-513PA 单声道后级放大器

产品特点:

●分体式单声道设计。比较完善的音响系统由两台LM-513PA后级功放和一台前级(如LM-512CA)和音源组成。

●纯手工制作,整机采用搭棚焊接。

●特设平衡输入端口加宽频输入耦合变压器。

●采用具有特殊制作工艺、由高档优质材料精制而成的硕大的宽频EI型推动和输出变压你器。

●使用两只相同的大功率环形电源变压器,使功率分配合理充裕。

●缓冲级采用12AX7,放大级采用本公司设计开发的310电子管,推动级采用天津300B,功率管用4只845作并联推挽功率放大。

●外设4只845功率管的电流检测表头。

●300B和845电子管采用自给偏压工作方式使工作更加稳定安全可靠。

●特设电源开关瞬间延时功能。

●特设115/230V交流电压选择开关的方便地适应国内外不同的市电电压。

●特设输出功率显示的猫眼增加灵动的感官效果。

●元件用料经听音实验后选用:高端的Muliticap专用耦合电容、美国IRC电阻、nichicon轴向电解电容、摩托罗拉大电流整流桥堆、高级的845管座、红宝石、菲利普BC滤波电解电容、日本松下继电器。

 

 

 技术参数:

-额定输出功率:160W(MAX)

-谐波失真:1%(1kHz)

-整机频响:15Hz~35kHz(-1.5dB)

-信噪比:87dB

-输入阻抗:100kΩ(RCA)   600Ω(Balance)

-输出阻抗:4Ω,8Ω,16Ω

-输入灵敏度:1000 mV

-使用电子管:12AX7×1、310A×1、300B×1、845×4

-整机体积(W×D×H):( 447 x 497 x 347 )mm3

-净重:73kg

-整机消耗功率:600W

-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:

●Split type mono design. More perfect sound system with two LM - 513 levels after pa

amplifier and a front  such as (LM–512ca) and the source of sound.

●Hand-made, the whole machine adopts welding booths.

●AD hoc balance input port and broadband input coupling transformer.

●Use with special craft, by high-grade refined from high quality materials large broadb

and EI type and output variable pressure you.

●Use two same high-power toroidal power transformer, the power allocation reasonable

enough.

●Buffer level 12 ax7, amplifier stage the design and development of the company 310

tube, promote the tianjin 300 b, power works only 845 for parallel push-pull power amplifier.

●Peripherals four 845 power tube current meter.

●300 b and 845 tube with self-biased works make work more stable safe and reliable.

●AD hoc power switch instantaneous time delay function.

●AD hoc 115/230 v ac voltage selector switch easily adapt to different mains voltage at

home and abroad.

●The AD hoc power output shows the cat‘s eye increase clever sensory effects.

●Component materials after listening experiment chooses: high-end Muliticap coupling

capacitance, the IRC resistance, axial electrolytic capacitor, MOTOROLA nichicon heavy

current rectifier bridge, advanced 845 pipe reactor, ruby, Philip BC filtering electrolytic

capacitor, Japan panasonic relay

 

 

Specification:

-Power output: 160W (MAX)

-THD: 1% (1kHZ)

-Frequency response: 15 hz ~ 35 kHZ (1.5 dB)

-S/N Ratio: 87 db

-Input Impedance: 100 k Ω (RCA) 600 (Balance)

-Output impedance: 4 Ω, 8 Ω, 16 Ω

-Input Sensitivity: 1000 mV

-tube:12AX7x1、310Ax1、300B x1、845 x 4

-Dimension (W x D x H) : (447 x 497 x 347) mm3

-Net weight: 73 kg

-Power Consumption: 600 w

-Working conditions: temperature: 0 ℃ to 40 ℃ Moisture: 20% ~ 80%

-Storage conditions: temperature: - 20 ℃ ~ 70 ℃ Moisture: 20% ~ 90%


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