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DAH1 已停产,请购买升级版本DAH1MARK

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发表于 2007-12-17 17:57 | 显示全部楼层 |阅读模式









     
已停产,请购买升级版本DAH1MARK
http://bbs.erji.com/read.php?tid=535023&page=1&toread=1
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 楼主| 发表于 2007-12-17 17:58 | 显示全部楼层
This DAC are specially designed by YULONG audio engineers. The concept is towards an user-friendly integrated DAC Amplifier, which only require a personal computer. This DAC Amplifier is capable of driving your headphone/preamp or speaker to achieve audiophile quality sound. Despite of its competitive pricing, it doesn’t compromise in any aspect of sound reproduction thus you can spare for other tweaks/gadgets in audio device/sources/preamp/interconnect cable. In terms of price per performance ratio, currently this DAC amplifier has the best bang for bucks.

•This DAC Amplifier will benefit greatly from high quality interconnect cable, power cord and other tweaks.

•Each unit comes with a exclusive portable remote controller.

•The heart of this DAC Amplifier lies in the main processing DAC chip which is AD1955. AD1955 is widely known for its excellent sound performance and benchmark for other high-end DAC on the market. The circuit topology used is a combination of DA1955 DAC and HEF188 headphone amp which controlled by CPU. There are no reduction in components nor quality of components used in original DA1955 and HEF188 circuit. In order to obtain the optimum performance, PCB routing is redesigned in more compact manner. Based from the customer feedbacks of DA1955 and HEF188 and our professional experiences in product design, we managed to fine tune the circuit topology to achieve optimum performance.

•With built-in MCU and the flagship Digital Volume Controller (CS3310) from Cirrus Logic, multiple standard Input/Output ports are available to provide flexibility for the user. For input, SPDIF, Coaxial, USB, analog input (RCA) are provided while headphone output, DAC output, and circuit output are for output part. This product is a multi function product which provides multiple modes for user convenience as well.

Available modes:
1. DAC + headphone amplifier: Switch on the power, press MODE button from the front panel to choose various input signal(SPDIF,Coaxial,USB), adjust the volume, plug in headphone to PHONE and start to enjoy the music.

2. DAC: Switch on the power, press MODE button to select preferable input signal mode, signal out from the DACOUT.

3. Headphone amplifier: Switch on the power, use MODE button to select PCM LINE status, adjust volume, connect headphone to PHONE.

4. DAC + Preamp : Switch on the power, press MODE button to select input signal, signal out from the LINEOUT.

•DAH01 Stereo DAC sound characteristic: great dynamic, wide and deep soundstage, excellent instrumental separation, sweet and natural sounding. This DAC’s headphone amp has a high output power which capable of driving all range of headphones ranging from low impedance to high impedance. The DAC’s preamp output has low output impedance, which ease for pairing it with any speaker amplifier on the market.

•Attention: Please adjust the volume, wave to 50% out of maximum value to prevent distortion in the sound and degradation in overall performance
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发表于 2007-12-17 18:20 | 显示全部楼层
坐个沙发,顶
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发表于 2007-12-17 18:30 | 显示全部楼层
是个带USB的解码器吧?、不知耳房是什么形式。
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发表于 2007-12-17 18:42 | 显示全部楼层
千呼万唤始出来
啥么时候寄过来
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发表于 2007-12-17 18:55 | 显示全部楼层
带包装箱的重量是多少?
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发表于 2007-12-17 18:55 | 显示全部楼层
第一页留下我光辉的ID吧
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 楼主| 发表于 2007-12-17 19:03 | 显示全部楼层
前一百台使用的USB接口是采用PHILIPS接口加DSP处理器处理,这批货现已出完
现再在售的是以集成USB接口上音质比较好的PCM2704为基础的USB接口,

由于DSP版本的USB接口是恒定在44.1K输出的,而操作系统自带的声音的采样是32K的,例如打开网页时发出一叭的一声,解码器就不能识别出来,如果听音乐时边用电脑,系统发出的操作音就会是杂音,
建议如下图设置,(关掉系统音)这样边听音乐边使用电脑就不会有杂音出现了

本机在无数字信号输入时是有微小底噪的,也就是没有接USB/光纤或同轴的任意一种输入而输入状态是在这种状态下,输入端会引入信号形成底噪,只要输入信号就没问题了,DSP版本的USB接口在没有播放音乐时是无输出的,在停止播放时会有微小底噪,正常播放音乐是不会有底噪了.
现再在售的2704的USB接口就改正了这一问题.

DHU.jpg
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发表于 2007-12-17 19:06 | 显示全部楼层
真的是好东西啊! 咱凑钱去了 [s:26]
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发表于 2007-12-17 19:17 | 显示全部楼层
俺过两天就能拿到了吧 [s:2]
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发表于 2007-12-17 19:21 | 显示全部楼层
支持一个,终于来了,哈哈 [s:2]
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 楼主| 发表于 2007-12-17 19:25 | 显示全部楼层
已定货的朋友们请尽快打余款,(1000+920包顺丰)打完款后给详细联系方式给我们方便我们发货
打款时多打个零头,以便我们对账,
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发表于 2007-12-17 19:26 | 显示全部楼层
好东西来了!
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发表于 2007-12-17 19:41 | 显示全部楼层
好东西,第一页上留名 [s:2]
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发表于 2007-12-17 20:00 | 显示全部楼层
已经打了余款。
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发表于 2007-12-17 20:09 | 显示全部楼层
终于出来了,呵呵! [s:29]
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发表于 2007-12-17 20:19 | 显示全部楼层
东西不错,支持
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发表于 2007-12-17 20:44 | 显示全部楼层
第一页留名呀...
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发表于 2007-12-17 20:56 | 显示全部楼层
帮龙哥顶

橡叶GPS、耳机名品店 是 钰龙音响北京总代理
DAH1 到货了,欢迎朋友们上门试听

具体规格见
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本店地址和地图
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发表于 2007-12-17 21:08 | 显示全部楼层
顶龙哥!我也想试试解码的效果!
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