Creek OBH 21se耳放

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[市场价格]： 4000 元

[会员价格]： 3500 元   立即节省：500元

[商品简介]

Creek OBH 21se耳放，是11se 的改进型。

[商品说明]

总谐波失真     <0.05%

最大声压级     >70dB

电源          24 V DC 150 mA

重量          360g

外形尺寸      180 mm x 130 mm x 65 mm

输出功率      >10mW

适配耳机阻抗   30~300欧

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官方网站的介绍：
Creek headphone amplifiers eliminate the use of a full size amplifier for boosting the power when only headphones are used. An average output level CD player or tuner can be connected directly to the input of the headphone amplifier.

Following on the success of the OBH-11, the new Creek OBH-21 & OBH-21SE incorporate more advanced circuitry utilising professional standard operational amplifiers. The discrete transistor technology used in the OBH-11 has been replaced by high-grade integrated circuits providing a capability to drive different types and impedances of headphones without problem.


There are two 1/4" (6.3mm) stereo headphone jacks on the front panel of both models. The output level is regulated by the volume control on the front panel. When using the OBH-21 one source can be amplified as the headphone amplifier has only one stereo input. It has stereo phono sockets (RCA jacks) on the rear panel for input from any line level source, together with a DC power jack. In common with all electrical appliances, the OBH-21 requires a power source. A custom power supply is provided, which must be connected to the unit via the DC inlet (2.1mm positive centre pin power jack) on the rear panel. The power supply may vary depending on country of use.
Internally advanced circuitry is used to split the power supply from a single positive to a split positive/negative supply, which allows circuits to be DC coupled and to eliminate capacitors on the SE version. The SE version uses higher-grade components throughout. It also features two pairs of stereo Phono sockets (RCA jacks) on the rear panel for input from any line level source and chain linking to another product in a tape loop circuit. The DC power jack for connection to a custom OBH high-grade power supply adaptor is also located on the rear panel.



The OBH-21 can also be used in conjunction with other Creek OBH series products, such as Phono pre-amplifiers or the passive pre-amplifier. Furthermore, it also functions with a stand-alone pre-amplifier or integrated amplifier without headphone output, connected in the tape loop.

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同时，原来的OBH11系列消失
新生： OBH-10 / OBH-12

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等待各位DX的评论

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heahfi的评论：
The only difference I can see between the OBH-11 and the OBH21 is a longer case and an ALPS pot...
The specifications are identical... the same 70db SNR ratio with the same 10mW output.
Looks like an OBH-11 in a new box to me.

georgermichael

好象不是分立元件是集成电路的。

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最初由 m63se 发表
[B]當你看到這個obh-21se的內臟時, 打死你也不會付那4仟多塊!
如果真是喜歡creek 的, 可以找obh-11se rev.b(是有rev. a 和rev. b, 而rev. b是比rev. a好) [/B]

headfi上也有人说rev.b用料好很多
但是现在11se已经停产了

蚊子

扛着，顶啊~~

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懂了

最初由 m63se 发表
[B]不值得為這個耳放費神;
corda 的ha-1 mkii就比她好. [/B]

chaisan

我看这耳放得用料同几位师傅的diy耳房差多了，居然还要卖这么贵！
真是有趣。。。

shitong

看这不太爽，不知道听起来如何？

东光

自己做吧，机心元件至多不超过100元。只是壳比较讲究，4000只是暴利而已！