A1000耳机放大器是一款使用外置电源供电,体积超小巧精致,却能有强劲的功率输出的耳机放大器,它内部采用高效率开关电源转换成正负电源供给OP放大-八只输出电流可达到800ma的晶体管缓冲电路输出驱动耳机。
本机体积虽小,推是推动600欧的耳机都很轻松,算得上是高阻耳机廉价的耳放了.
电路结构,OPA2134+BC337/338*4
本机使用外置AC 90V-270V,50/60HZ全球通用高品质电源供电。
所有机器均通过24小时的强化实验,经过dScope Series III digital audio analyzer 进行检测,这些环节能保证本机从生产到音效调整到技术指标,以及机器的稳定性都能达到优良的一致品质。
使用高频率电源供电更能保证耳机输出部分功率充足,噪声小,瞬态响应良好。
技术指标:
●SNR: >-100Db.
●Crosstalk:-100db
●THD+N: 1KHz%0.002.
●Frequency response: 20-20KHz-0.1Db.
●power:<20W.
●Headphone’s out power: RMS:32R/1W,300R120mw, Peak:600R/400mw300R/600mW
●Dimensions: 110*80*30mm
●Weight: 200g.+ Packing:0.5KG
●power AC in: 80-240VAC/50-60HZ
本机零售价468元.
淘宝购买连接:
http://item.taobao.com/auction/i ... b017b&x_id=0db1
--------------------------------------------------------------------------------------------------------------
A1000 is a headphone amplifier with the external power to supply,although it has a small and exquisite size,its power output is very strong.In order to drive the headphone,the efficient swtiching power is used to be converted into the positive and negative power to supply the OPAMP and the eight transistors whose output current can reach 800ma.
The circuit structure:OPA2134 and BC337/338*4.
A1000 uses the universal high-quality external power supply which is AC 90V-270V, 50/60HZ.
The whole circuit uses the high-precision components with famous brands,QC is necessary before production,each of the components must be tested to achieve high performance index and adjusted by YuLong senior audio engineers before use.
All the machines must be passed through the 24-hour reinforcing experiment and examined by the dScope Series III digital audio analyzer critically.From production to voice adjusting to technical indicators and the stability of the machine,these procedures can guarantee the consistency of high quality.
The style of voice: clear and bright,elaborate and soft,natural and endurable,the whole frequency is equivalent, high frequency power supply can ensure enough power of the headphone output,low noise,fine transient response.Technical Specification: |