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thanks, I also did a search:

The main difference between the two is the way they connect to the receiver. The coaxial fits securely on the input jack and is more like a standard analog cable, and is probably better for a longer run. An optical cable can distort sound with just a slight kink in the cable. They both produce excellent sound.


Both digital cables send the same type of signal (& I would recomend either one to anybody because digital is the way to go). the coax does it with electricity (electrons, voltage, pulses of current if you will) & the fiber-optics cable does it with optics (with light, or photons). If you can keep the digital cable relatively free from sharp bends & too much winding... then go ahead go with the optics cable, it will be virtually untouchable by electromagnetic noise that may be around your components. If it will be wound quite a bit or have to round a few corners... then go with the coax cable, it isn't affected as much by the bending. I
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Replies, comments and Discussions:

  • 枫下家园 / 家用电器 / 如何选用家庭影院和receiver?
    前一段看到BESTBUY上有YAMAHA 500W的receiver和BOSE的6件SPEAKER。 999CAD
    不知到配置怎么样? 去店里一看,即使是YAMAHA的receiver, 也有5,6种,除了功率不同外,还有好多其他区别,都把我搞糊涂了。
    BOSE的音箱,有的只有3件,却要卖1200多。 6件的体积小点,卖的还便宜。 该如何选择?
    如果预算在1000左右(receiver and speaker)的话,该如何选择?
    • you want a HTIB (Home Theater In a Box) or Discrete Component Systems?
      BB 那套YAMAHA receiver + 和BOSE 6SPEAKER, 需要你有DVD player.
      如何选用? 还是小马过河的问题. 每个人情况不一, 没有人可以简单的告诉你,
      • 我会另外买HD DVD 或BLUE RAY PLAYER。 我只是问,在这个预算下,那种配置效果最好。我对音响器材不太懂。 只记得以前有个朋友,是个发烧友,他说YAMAHA是入门级的器材。
        我不喜欢HTIB,据我的经验,把所有的功能都放在一起,是方便了,但效果一般。就象整合现卡的主机板, 那显卡的性能,只能上网。
        • should be Blu-ray. 如果你对音响器材不太懂(其实我也一样),我建议
          先买一个价格中等的HTIB, 等有了些感觉, 再升级.(资金充足例外)
          HD and Blu-ray, 两种规格, 标准还没有统一,
          而且, 还有很多因素制约, 如房子, 墙壁, 地板等.
        • 那个yamaha 好像是HTR6030B, 没有HDMI.
          • receiver的价格取决于己于1多少种解码(ac-3 dts thx ....)2 每声道功率大小 3 多少声道.对于你的1000圆预算多点放在receiver上.你的房间越大receiver功率要求越高.
    • polk/infinity/klipsch speaker + Yamaha/Denon/Hamon Kardon/Pioneer receiver
      the main difference for receivers in terms of features are power, number of input/outpu connection, 5.1, 6.1 or 7.1 ability etc.
      • FS has 3 packages on sale this week.
        799, for denon + polk
        999 for yamaha+athena
        1699 for denon + polk
      • 为什么没有推荐BOSE呢?
        • BOSE 音箱 高中音较好对纯音乐表现略好但是相对而言低音部分较差,无发体现电影的重低音,大动态的效果.适合于偏重于音乐兼顾影院.
          • I read may articles about BOSE's overpricing, it does marketing much better than engineering, and it never publishs its frequency response, and few HIFI magazines review BOSE's products after Consumer Report was sued for bad review about BOSE speakers.
    • 预算1000左右也可以买到性价比很高的: 功放用Pioneer Elite(先锋的高端产品,平时售价 $1500左右,但是年底都会降到$600左右),剩下的钱可以买一对落地音箱(JBL)和一个低音炮(10“),当然,可能要超过预算$300左右。
      • 后置音箱选用什么样的? JBL 这两个音响是什么牌子的?
        • JBL可以选用E60或者Venue™ Series STAGE $400以内 (附图), 后置可以选用同样型号(建议用E60或更高级做前置,STAGE做后置),不过$1300价格不包括后置和中置,不过再加400就可以把后置搞定了
      • 还没算上环绕吧?
      • how about this one?
    • For those Discrete Component Systems, where to buy the speakers' wire for a reasonable price?
      • go to home depot, tell them you need to buy speaker wire, they are sold by length.
    • Polk Audio 5.1 Channel Home Theatre Speakers + Pioneer 7.1 channel HDMI receiver (VSX-1017TXV-K
      799 + 699 我觉的不错。
      http://www.futureshop.ca/catalog/proddetail.asp?logon=&langid=EN&sku_id=0665000FS10073515&catid=
    • 先说a/v receiver。要入门,缺银子,那就买:pioneer, yamaha。有钱,要发烧,就买denon, harman karden, onkyo等。从100块到10000块的都有。买个pioneer VSX-917先入门一下吧,7.1 HDMI,性价比不错,$350能拿下。
    • 再说speaker。bose是垃圾,200块的东西卖给你1500。想要budget一点,就买个package,inifinity, polk audio都不错。要发烧,就一样一样买,energy不错,就是价格有点高。subwoofer要10寸以上的,8寸的有点小。最后,jbl不要碰,不入流的东西,还不便宜。
      • 不懂就去看看评论或者自己去听听,别不懂装懂
        • 别动不动就说别人不懂装懂。我怎么觉得你楼上讲得很好,至少比你强。
        • 典型的买了jbl被骗了,还不允许别人说不好。刚入门的都买JBL或者Bose,因为就听说过这么两个牌子。
    • 还有一个问题,功放和音箱的功率怎么搭配?
      我看这功放的功率每声道也就是50-120 瓦。 有些落地音箱的功率有200W,这功放带的起来吗?

      我看文章介绍说功放的功率要比音箱大1.2--1.5倍。
      • 要看speaker的敏感度(sensitivity),最好不要低于86dB的,90dB以上都不错。再说,很少有人听音乐能把喇叭的功率放到极限的。功放的每声道功率不要低于100瓦。speaker的sensitivity每差3dB,需要功放输出两倍的功率才能达到相同的loudness。
        • 这个理论很强,同意
    • 买了个 Pioneer 917, 请教个问题.
      有关DVD, receiver 和 TV 连接问题,
      3 个设备都有HDMI. 我想用2根HDMI cable 来连: DVD -> receiver-> TV.
      结果没有声音 从我的 home theater speaker (not the TV speaker) 出来.

      看了说明书, 发现:
      1. 这个receiver 的HDMI 是个switch (ver1.2)
      2. "To hear audio from your HDMI component through this system, make analog and/or
      digital connections as necessary. Without this connection, HDMI audio will
      still be output from your TV or plasma display (though no sound will be heard
      from this receiver)"
      原来这个receiver 的HDMI 不能pass audio 信号到的我 speaker.只有video 信号.

      我的问题是: 是不是其他的receiver 也是一样的, 音频信号不能通过DVD 机的HDMI 传到receiver? 如果那样 那receiver 的HDMI 还有什么有意呢?

      这个receiver 用了2天 ($ 370 from BB)
      1. 2次 power on 开关 不好使, 按了后没反映. 1分钟后再try, work.
      2. 发热.
      买来后, 发现很热, 甚至有点汤. 然后去 BB比较. 他是那里 80% 开着的 里面最热的.
      3. 打算还一个其他的, 听听大家的意见.

      谢谢.
      • amazon.com 上有人反映同样的问题.
      • 做了一点dig.
        Yamaha (6050) 不可以:
        Audio signals input at the HDMI jack are not output from any speaker terminals but output from the connected video monitor.
        To enjoy the sound from speakers connected to this unit,
        –make an analog or digital connection besides the HDMI connection (see page 16).
        –mute the volume of the connected video monitor.


        Denon 588 似乎也不可以
        The Latest HD Video Support
        HDMI1.3a switching*
        Deep Color up to 36-bit and xvYCC broader color space support
        Discrete devices for ultimate HD video performance in each block
        1080p video pass
        *No audio support

        Sony (710) 可以
        A digital audio signal transmitted by HDMi can be output from the spearkers on this receiver.


        如果这样, 那个receiver 上的 HDMI 到底有什么用. 我可以把 DVD and TV 直连HDMI呀.
        • HDMI on receiver can be a HDMI Hub, If your TV only has one HDMI input and you want to connect more than one resources
      • hdmi passthrough。不到400快的receiver还带hdmi接口的,都是这样的。500以下的receiver很难找到处理hdmi audio信号的。开关问题比较奇特,我用来快一个月,还没有碰到。你要有钱,就买hdmi 1.3的吧,1000块。
        • Denon 588 supports the 1.3a. what the diff between 1.3 and 1.3a? thanks
          • color depth
        • Onkyo TX-SR605. 我个人觉得安桥的东西还不错,比天龙的便宜些,质量要比一些二线的音响产品好些,个人意见,完全不专业。
    • 个人喜欢KEF的音箱
    • www.amazon.com上的POLK音箱好便宜,简直是一半的价格,有人在AMAZON上买过东西么?
      • 别说AMAZON了,去BUFFALO都会便宜好多。 http://www.circuitcity.com/rpsm/showMap/Y/mapRequest/Y/rpem/ccd/showLocatorDetail.do#allStores
    • About the audio output: what's the main difference between Fiber Optic Digital and Coaxial ?
      • it's like compare HDMI to Component Video. Digital vs. Analog. All could carry Dolby Digital, DTS, etc.
        • thanks, I also did a search:
          The main difference between the two is the way they connect to the receiver. The coaxial fits securely on the input jack and is more like a standard analog cable, and is probably better for a longer run. An optical cable can distort sound with just a slight kink in the cable. They both produce excellent sound.


          Both digital cables send the same type of signal (& I would recomend either one to anybody because digital is the way to go). the coax does it with electricity (electrons, voltage, pulses of current if you will) & the fiber-optics cable does it with optics (with light, or photons). If you can keep the digital cable relatively free from sharp bends & too much winding... then go ahead go with the optics cable, it will be virtually untouchable by electromagnetic noise that may be around your components. If it will be wound quite a bit or have to round a few corners... then go with the coax cable, it isn't affected as much by the bending. I
    • 初步选定了一套,但预算已经超出很多,准备分两次购买。
      首先, 选用Yamaha HTR 6090B 功放,7.1 channel, HDMI 1.2a. 选这个主要是因为有120W/CHANNEL的功率。 (899CAD) 小功放当然也能代大音箱,但我觉得还是尽量匹配好。
      前置选用 POLK的落地音箱 RTI10,各300W,如果用Bi-amp的话,我的功放支持120X2=240W, 马马湖湖。现在特价525。 我觉的前置应该多花点。
      中置选用 POLK 的 CS2,175W, 299。
      后置采用POLK的POLK MONITOR 50, 各150W, 400USD,后两个音箱我得去BAFULLO买,加拿大没找到。
      这里已经2100了。已经翻了一倍,但想着至少可以听个10年8年的,觉的还是应该花点做固定投资。 不然买个鸡肋,过一两年想换,旧的又浪费了。

      底音炮不准备第一次买了,因为前置每个音箱各有两个7“的,一个6.5”的喇叭,我房间也不算大,先将就了。再一个原因是我要买的POLK PSW505太贵,要500多,还是等等吧.

      过两天去FUTURESHOP听听效果。这两天光搞这个了,该去挣钱了。
    • CENTRIOS, 价格便宜的惊人, 谁用过?
      • 我始终相信买的没有卖的精。中档产品也很多,总有一款适合你的预算。
        • make sense. 你的receiver and speakers 买了吗, 感觉如何?
    • 借帖子问一问,天朗tannoy的音箱怎么样?最近在warehouse sale看到大特价,原价1200卖450。
      • 英国天朗, 同轴的? 好! 那里有卖, 给各连接.
        • 在Downsview Park的Giant Warehouse Sale看到,不知道是不是同轴的,感觉相当沉。估计这个周末结束,没有网址。
          • 谢谢. 放狗色吃了一下.
            • 东西看起来不错,有英国本地出产的,也有马来西亚产的,可是warehouse不提供demo,也不能退货,所以不敢轻易下手,最好有高手到现场看看牙口,提供一下意见,看看是不是值得买。
              • 音箱也看了. 那几个是用来听严肃音乐的, 不是家庭影院系统.