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w*******y 发帖数: 60932 | 2 Must register for Panasonic Purchase Program!
1. Go to epp.panasonic.com (no www)
2. Click on Sign Up
3. Use group ID NXT777
4. Log in and get sweet discounts! Woot!
Inside the site, look under Audio>Home Theater Systems>SC-BT230
Price is $230 + tax with free shipping!
This system has a Blu-Ray player while the Wal-Mart and ShopOnkyo home
theater deals only have a DVD player. Great match for your new BF TV deal!
Solid 4-star ratings on Amazon:
Link:
http://www.amazon.com/Panasonic-SC-BT23... 阅读全帖 |
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w*******y 发帖数: 60932 | 3 Apply coupon code DEALXH50 for $35 off
Link:
http://shop.panasonic.com/shop/model/SC-XH50
quote
Playable Discs
DVD DVD-Video
DVD-R/DVD-R DL/DVD-RW 1 DVD-Video
MP3 2 (DVD-R/DVD-RW)
JPEG (DVD-R/DVD-RW)
+R/+R(DL)/+RW 3 Video
CD CD-DA
VCD
SVCD
MP3 4
JPEG
CD-R/-RW 5 CD-DA
VCD
SVCD
MP3 6
JPEG
Audio System
Output Channel 5.1ch
Output Power: Home Theater Mode (RMS) Total Power: 300W
Front: 55W x 2 (1kHz, 5ohms, 10% THD)
Center... 阅读全帖 |
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O*******e 发帖数: 6055 | 4 据说好像是 麦克抗压大 = 录音不容易过载,可能我理解有误哈。
俺的理解,就是指麦克的振膜能承受的最大强度的声源冲击而不导致录音失真。比如说
录鼓啥的。这里强调的是振膜物理上的handle能力,不是指录音的输入音量。
而且,SPL值一般在130 - 150之间,这个是人声根本不可能达到的。
虽然超过了这个SPL值也会导致削顶,但这个是指音源的音量超过振膜能力导致的,和
输入音量高导致的过载不是一回事。
所以,SPL貌似和录音是否过载木有关系哇?尤其是录人声的时候,怕过载也只能是调
低输入音量了。
“The maximum SPL the microphone can accept is measured for particular
values of total harmonic distortion (THD), typically 0.5%. This amount of
distortion is generally inaudible[citation needed], so one can safely use
the microphone at this SPL with... 阅读全帖 |
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a*******m 发帖数: 626 | 5 我没说这款,呵呵,我看的是淘宝上卖的比较多的那种~~
http://item.taobao.com/auction/item_detail-0db1-6725a5701a8d79ef2d4fa8b311c1
9c11.htm
就是想请教一下这种如何确定小功放和箱子的匹配呢,谢谢!
THD+N 10%应该还能接受的?
8ohm 25w?
•Class-T architecture
•0.04% THD+N @ 9W, 4 Ohms.
•0.18% IHF-IM @ 1W, 4 Ohms.
•11W @ 4 Ohms, 0.1% THD+N
•6W @ 8 Ohms, 0.1% THD+N
•15W @ 4 Ohms, 10% THD+N
•10W @ 8 Ohms, 10% THD+N
•81% @ 15W, 4 Ohms
•88% @ 10W, 8 Ohms
•Dynamic Range = 102 dB
•Turn-on & turn-off pop |
|
f*******e 发帖数: 8974 | 6 8ohm 25w?
•Class-T architecture
•0.04% THD+N @ 9W, 4 Ohms.
•0.18% IHF-IM @ 1W, 4 Ohms.
•11W @ 4 Ohms, 0.1% THD+N
•6W @ 8 Ohms, 0.1% THD+N
•15W @ 4 Ohms, 10% THD+N
•10W @ 8 Ohms, 10% THD+N
•81% @ 15W, 4 Ohms
•88% @ 10W, 8 Ohms
•Dynamic Range = 102 dB
•Turn-on & turn-off pop suppression
•Over-current protection
•Over-temperature protection |
|
D**********s 发帖数: 3139 | 7 音量控制对音质的影响,以前有一篇note写得不错,我找了半天才找到,其实还有用变
压器的方法,不过dac这块最保真的方法就是保持位深和标准输出电平,音量控制交给
前级和功放去管就好了,终究绕不过模拟放大这一关的。
Volume Control Technologies
Newsletter Edition:
July 2009 Issue
With the introduction of Benchmark’s HDR-VC™ (High Dynamic Range
Volume Control), many audio enthusiasts are taking another look at volume
control methods. What are the differences between the different volume
control topologies? Is one sonically superior, and why?
The important qualities to consider with respect to volum... 阅读全帖 |
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j*********r 发帖数: 24733 | 8 dota解释的很清楚了, 另外这只公房的说明书上其实说的很清楚了:
• Rated Output Power (2-channel driven)
[U.S.A. and Canada models] (20 Hz to 20 kHz, 0.09% THD, 8Ω)
[Other models] (20 Hz to 20 kHz, 0.09% THD, 6Ω)
Front L/R .....................................................80 W+80 W
[U.S.A. and Canada models] (1 kHz, 0.9% THD, 8Ω)
Front L/R .....................................................95 W+95 W
Center ............................................................ 95 W
Surround L/R................................... 阅读全帖 |
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l******g 发帖数: 6771 | 9 新手,最近看看音响,看看电影,唱唱卡拉OK,人笨不太会考古搜精华,所以就放狗搜
,看到这个深入浅出,转到版上分享一下,抛砖引玉。。。
http://thecreativealternative.com/best-home-theater-receiver-gu
#####################################################################
AV Receiver Guide – Home Theater
Posted on April 14, 2013 by mychaelp
Check out some of the latest models with 4K Ultra HD compatibility now
included in this AV Receiver Guide for Home Theater
The A/V Receiver… Some have referred to this device as “The “Heart of the
Home Theater”. And for good reas... 阅读全帖 |
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j*********r 发帖数: 24733 | 10 哪位大侠给普及一下classT/D Amp吧,我的理解主要问题是高功率或满负荷时THD太高(
比如TA2024 2x10w @ 10% THD 8Ω).但由于其高效(85%-90%),小功率输出是效果不错.
比如我现在用的TA2021.另外这两年新的Tripath芯片出来,象TK2050 (2x15W @ 0.018%
THD @ 8Ω)和TA2022 (2x27W @ 0.1% THD @ 8Ω)芯片,大功率失真应该不是很大的
issue了.只是好奇如果芯片越做越好的话(very likely),这种会是以后的方向吗?或者
说这类公房有先天无法克服的问题.另外Tripath这家公司是不是已经倒闭了啊.
出。 |
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w*******y 发帖数: 60932 | 11 Crown XL 5000 rackmount stereo amplifier for $534 shipped!
This is a barn burner price. I see this amp most places for $1k. Crown is
a well recognized and high quality manufactorer. 3 year full warranty.
This amp actually sells on ebay used for more than this new price in in all
of the most recent sales. I don't know that's it's worth flipping because
it weighs 73 pounds and by the time you pay shipping and fees you wouldn't
turn a profit - but it's nice to know you can buy something new for... 阅读全帖 |
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w**t 发帖数: 1037 | 12 很简单, 功率大小不是唯一指标, 还有其它一些重要指标比如,失真(THD), 电流,
转换速率(slew rate), 阻尼系数(damping factor), 都会影响推力,控制力,
声音等。
另外一个值得看的指标是 阻抗从8欧到4欧时,功率是否翻倍。能做到这一点的后级都很厉害。喇叭的阻抗都不是恒定的, 标称8欧的喇叭在某些频率阻抗降到4,5欧左右是很常见的,所以功放在4欧时的功率也很重要。
比较一下 simaudio w-5 的 指标 : http://www.simaudio.com/moonw5.htm
和 Emotiva XPA-2 指标: http://emotiva.com/xpa5.shtm
w-5 的 电流是20A( 连续),55A(max),阻尼系数800, slew rate 40V/µs,
THD(0.02%,0.05%) ,这些数据都很厉害。而且 ,8欧时功率190瓦, 4欧380瓦, 2欧750瓦,这个更NB了。
XPA-2 THD是 0.1%,其他没有列。
另外, 很多AV receiver的功率是有水分的, 比如, 125wx7 是... 阅读全帖 |
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y**i 发帖数: 357 | 13 class-D可以做到大功率. B&O的IcePower有1000W的. 音质被评为'完美的amp'
http://www.6moons.com/industryfeatures/icepower/icepower.html
(1000W @ 0.01% THD+N, 100 Hz, 4Ω
1175W @ 1% THD+N, 1kHz, 4Ω
THD+N < 0.2%, 0.1W – 1100W, 4Ω)
很多Hifi brand都用icepower module做amp: Rotel, Wyred4Sound, Bel Canto...
最新的系列是ASX2,有50W, 125W, 250W三种,音质更好. 50W的module只要$50,但是不零售给DIYer.
Tripath公司的东西感觉功率还是小,对于低音电流要求高的箱子不太行.
IcePower is really really great, I am loving it every day.
还有一个hifi的class D是Nuforce, 比较贵.
% |
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p**********t 发帖数: 3680 | 14 这个120w 说的太general 了, 要说瓦数,要说频率范围,THD总谐波失真。负载几欧。
举例来说 10hz--10khz THD 0.1% 下 120w。 和20--20khz THD 0.02 下的120w 差大
了。。。 |
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L**Q 发帖数: 4 | 15 想配套卡拉ok. 最好能以后能兼顾家庭影院
这几天在版上收益非浅
so far 配置如下:
1. mic 就用大家推荐的 Shure 58S. musician's friend 现在有rebate, $104 x 2-
26
http://www.musiciansfriend.com/pro-audio/shure-sm58s-mic-with-switch
2. 音箱就用 Bose 310, 到处都一个价330. 在crutchfield.com买的,没有税。
3. mixer 和 receiver 就有点犹豫
option a: 就是用 BMB DAS-150 (SE) 300W 2-Channel Karaoke Mixing Amplifier
. 一个box就行了,可放在一起是不是不太好,而且以后不能兼顾家庭影院。 $819 也
不便宜。
option b: mixer 用 BMB 3000 g2, 可除了ebay没见哪儿有卖的. Receiver 没有选
到特别合适的。 想有足够大的 power 推Bose 310,声音好,有wifi,blue... 阅读全帖 |
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k******9 发帖数: 878 | 16 如果准备买JBL ES80,那Onkyo TX-NR626可以搭配吗,我把参数都列在下面,麻烦高手
看看,谢谢了
JBL ES80. Specifications General Specifications Finish Black Series ES Wall-
Mount Capable No Type Floorstanding Audio Specifications Crossover
Frequencies 700Hz, 3.6kHz a?" 24dB/octave; 12kHz a?" 18dB/octave Maximum
Recommended Amplifier Power 200W Power Handling (Recommended) 100W
Sensitivity (2.83V@1m) 91dB Power Handling (Peak) 400W Nominal Impedance 8
ohms Frequency Response 45Hz a?" 40kHz Speaker Specifications High-Frequncy
Transduc... 阅读全帖 |
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n*******n 发帖数: 1115 | 17 很多receiver的specs里会有两个单频道输出功率的值,比如这个:
105W per channel (8 Ohms, 1kHz, 0.9% THD, 1-ch. driven)
90W per channel (8 Ohms, 20Hz - 20kHz, 0.09% THD, 2-ch. driven)
105W这个是peak值吗?THD和1ch 2ch driven是什么意思?如果唱歌的话最好每个
channel 100W以上是看第二个参数? |
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D**********s 发帖数: 3139 | 18 随便什么power都成,一样的喇叭,标100W THD 1%可以,标1000W THD 10%也可以,标
2000W THD 100%也成。
h
pow
TH
quali
am
reproductio
其实 |
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t*******r 发帖数: 22634 | 19 俺想了想,您说的可能有道理。俺最近那个 D-08 vs zh4 录音,
离开录音机 2.5 ft 。。。声压跟距离平方成反比。。。哼哼
最关键的是,其实破膜不是那么明显的,效果应该是声音变混浊了
(THD 上去了)。实际上破了有时真还未必知道。。。而且 1%
THD 很高了,高保真录音最好 THD < 0.1%,所以不一定到那个
Max SPL 的声压,录音的干净程度说不定已经受影响了。
好吧,狮吼一族可能是要注意这个问题。。。 |
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k******9 发帖数: 878 | 20 这种卡拉OK要求的音响,有什么参数要求,这方面一窍不通,听大家说音响容易烧坏,
那是要哪个参数高或者低?有具体的选购参数标准吗?
我在版上翻了翻,有推荐JBL ES80的,还有BOSE301的,前几天看到NEWEGG上有POLK打
折的,等等等,大家可以给个建议吗?
另外如果选好了音响,如何看功放的参数和音响是否匹配,不会烧坏也不会推不上去,
那要看哪几个项目的数值,实在是什么都不懂,望高手帮忙!感激不尽
如果准备买JBL ES80,那Onkyo TX-NR626可以搭配吗,我把参数都列在下面,麻烦高手
看看,谢谢了
JBL ES80. Specifications General Specifications Finish Black Series ES Wall-
Mount Capable No Type Floorstanding Audio Specifications Crossover
Frequencies 700Hz, 3.6kHz a?" 24dB/octave; 12kHz a?" 18dB/octave Maximum
Recommended Amplifier... 阅读全帖 |
|
j*********r 发帖数: 24733 | 21 here is the THD for TA-2020,光很响是没用的。
THD Distortion
0.03% @ 9W, 4ohm
0.1% @ 10W 4ohm
0.1% @ 6W 8ohm
10% @ 23W 4ohm
10% @ 13W 8ohm |
|
r*****a 发帖数: 30 | 22 嗯,就是想慢慢配成5.1系统
查了一下
•Power Output Per Channel(20Hz-20kHz, 0.08%THD@8ohm): 75 Watts
•Power Output Per Channel(1kHz, 0.7%THD@6ohm): 120 Watts
•Maximum Power Output Per Channel: 175 Watts
所以推不好BS41?
有poweroutput per channel比较高的的5.1或7.1功放推荐么?请指点。多谢啦~ |
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r*****a 发帖数: 30 | 23 我看不懂那些参数20Hz-20kHz, 0.08%THD@8ohm;1kHz, 0.7%THD@6ohm
BS41 好像是55Hz-20kHz 6ohm 看什么匹配? |
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i*d 发帖数: 2640 | 24 673比573功率大些,网站标了好几个数字,容易把人弄晕。673和717比,仔细看数据,
功率差的并不太多。
Rated Output Power (1kHz, 2ch driven) 105W (8ohms, 0.9% THD)
Rated Output Power (20Hz-20kHz, 2ch driven) 90W (8ohms, 0.09% THD)
Dynamic Power per Channel (8/6/4/2 ohms) 130/170/200/240W
All Channels 125 W (6 ohms, 1 kHz, 0.7%, 2 channels driven)
Front L/R 110 W (8 ohms, 20 Hz-20 kHz, 0.08%, 2 channels driven, FTC)
125 W + 125 W (6 ohms, 1 kHz, 0.7%, 2 channels driven, FTC)
Center 110 W (8 ohms, 20 Hz-20 kHz, 0.08%, 2 channels driven, FTC)
12... 阅读全帖 |
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u**r 发帖数: 663 | 25 多谢!第一次买音响,啥也不懂,看到版上说BS41是神器就买了。。。
功放参数:
Stereo Power (FTC)95W per channel, two channels driven @ 8 ohms, 20Hz –
20kHz, <0.07% THD
Multichannel Power (FTC)95W per channel, two channels driven @ 8 ohms, 20Hz
– 20kHz, <0.07% THD
Signal-to-Noise Ratio (IHF-A)100dB
Dolby Digital PlusYes
Dolby True HDYes
Dolby® DigitalYes
Dolby Pro Logic® IIYes
DTS-HD/DTS-HD Master AudioYes
Logic 7®Yes
貌似是说最多95w/channel同时带2个?BS41要推好啥要求啊?95w推一只够不够? |
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j**a 发帖数: 119 | 26 今天dealsea 上
YAMAHA RX-V375 5.1-Channel AV Receiver, $189
Amplifier Section Channel 5.1
Rated Output Power (1kHz, 1ch driven) 100 W (8 ohms, 0.9% THD)
Rated Output Power (20Hz-20kHz, 2ch driven) 70 W (8 ohms, 0.09% THD)
Dynamic Power per Channel (8/6/4/2 ohms) 110/130/160/180 W
新手请教,这个推得动pioneer fs51吗?
包子答谢! |
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b******n 发帖数: 4509 | 27 receiver 弄个二手的 decent 的好很多啊,没必要买新的,
我现在用的是二手 pioneer vxs-1015tx 120w/8ohm per channel,
感觉很不错,才 40 刀。
今天dealsea 上
YAMAHA RX-V375 5.1-Channel AV Receiver, $189
Amplifier Section Channel 5.1
Rated Output Power (1kHz, 1ch driven) 100 W (8 ohms, 0.9% THD)
Rated Output Power (20Hz-20kHz, 2ch driven) 70 W (8 ohms, 0.09% THD)
Dynamic Power per Channel (8/6/4/2 ohms) 110/130/160/180 W
新手请教,这个推得动pioneer fs51吗?
包子答谢! |
|
|
n*****g 发帖数: 178 | 29 我想弄个卡拉OK,兼家庭影院效果。不知道雅马哈HTR-3066 能否带得起五个bose 301+
subwoofer?
雅马哈参数如下,我看不懂为何有两个不同的瓦数per channel??
5-channel powerful surround sound
100 W per channel (8 ohms, 1 kHz, 0.9% THD, 1-ch driven)
70 W per channel (8 ohms, 20 Hz-20 kHz, 0.09% THD, 2-ch driven)
Discrete amp configuration
HD Audio format decoding: Dolby® TrueHD and DTS-HD Master Audio™
Dolby® Digital Plus and DTS-HD High Resolution Audio™
192 kHz/24-bit Burr-Brown DACs for all channels
High dynamic power, low-impedance... 阅读全帖 |
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a**********e 发帖数: 5124 | 30 THD DAC用的是PCM1794 我推荐这个用的PCM1796 差不多吧
PCM1794貌似比WM8740好一些 AK100里面一个WM8740 AK120里面两个 所以我感觉这性价
比还行
THD直接推HD650还是不行 加个二房
我办公室是主板上用光纤直接输入这个
不过光看数据也没用 自己听着好就好了 |
|
B*Z 发帖数: 7062 | 31 THD = Total harmonic distortion
The total harmonic distortion, or THD, of a signal is a measurement of the h
armonic distortion present and is defined as the ratio of the sum of the pow
ers of all harmonic components to the power of the fundamental frequency. TH
D is used to characterize the linearity of audio systems and the power quali
ty of electric power systems.
In audio systems, lower distortion means the components in a loudspeaker, am
plifier or microphone or other equipment produce a mo... 阅读全帖 |
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n******9 发帖数: 336 | 32 各位大神帮忙看看。
最近想组k歌系统也兼顾家庭影院,买了Yamaha RX-V677 receiver和版上推荐的Bose
301 V。连接好以后(只是连接的Bose 301V),当receiver的音量开到一半多 -15db
的时候,receiver就自动关掉了。是receiver不能drive这个speaker还是我的wiring有
short啊?我check了连线,应该都没问题啊。
两个参数如下:
Yamaha RX-V677 receiver (目前设置成8ohms的)
Amplifier Section
Channel 7.2
Rated Output Power (1kHz, 2ch driven) 105 W (8 ohms, 0.9% THD)
Rated Output Power (20Hz-20kHz, 2ch driven) 90 W (8 ohms, 0.09% THD)
Dynamic Power per Channel (8/6/4/2 ohms) 125 / 165 / 190 / 235 W
BOSE 301V
Compat... 阅读全帖 |
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w*****s 发帖数: 438 | 33 I got 21 windows with 4 different sizes, Lowes provides a quote for about
12K, and THD is 13.5K, I accepted the deal with THD. |
|
t******g 发帖数: 17520 | 34 都是托, 要不没市场, 本来说THD<0.1%是高档Hi-Fi, 后来那个Hiraga 不是说我的2
% 的THD比
那<0.1%的强吗可能很多人排除其他咋7咋8 的slew-rate 啥的标准
没有标准, J东西就是个很主观的东东了 |
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h*******0 发帖数: 3598 | 35 ZHIWEI兄弟,还有以前THD兄弟,都提出来,我在BBS发言有待改进的地方。呵呵。上次
THD的说的我基本改好了。这次再改ZHIWEI兄提的。谢谢你们!
好了,数据没出来,但是饭得去吃了。呵呵。 |
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r******l 发帖数: 199 | 36 Sony DAV-S300 是家庭影院dvd player+receiver. 该如何给他配5.1音箱,我的意思是是
否要考虑音箱的功率,我不知道是否5.1音箱自带公放.
其配置如下:
Amplifier: 180 Watts Total System Power (6x30 watts; Front/Center/Rear 3 ohms,
10% THD, 120-10kHz. Subwoofer 3 ohms, 10% THD, 40 Hz-20kHz +/- 3 dB)
Built In Dolby Digital, DTS and Dolby ProLogic Decoders
Digital Amplifier with high power efficiency, low signal distortion and low
power consumption.
Four Function Selector - DVD, Tuner, Video1, Video2, A/V Video In/Out x2 (RCA)
S-video Output
Headphone Out |
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i*******D 发帖数: 993 | 37 我之前差点去应聘一家电声乐器的公司。所以认真学过这些,对这个行业或多或少也有
所了解。pro audio这里面水也很深的,绝对不是一分钱一分货。
我不知道你去guitarcenter什么感受。有没有找到你自己喜欢的麦。我不太敢直接推荐
你具体某个型号,我怕你买到不喜欢回来骂我。我推荐的都相对较贵(相对较贵的意思
就是绝对比那些便宜的贵,但是绝对都是性价比王者,比那些动辄一辆汽车钱的麦比起
来绝对值,又不像某些麦,本身就经常出各种问题。)
我想说的是:麦最好别买二手的。对于比较好的麦,比如1000刀以及上的,多数都是录
音棚买的,至少是个人录音棚买的,很少个人为了兴趣买个1000刀的麦来唱k玩的。他
们卖那个麦通常的原因就是:严重过载了,麦受损了。虽然看上去可能外表完好,可是
振膜可能受损了。声音就不对了。比如用电容麦录管乐什么的时候就可能出这种情况。
还有我像提醒楼主的有:挑选麦不能完全看指标。比如那个频响曲线。那个仅仅是拿个
正弦信号扫出来的。实际用起来远远比那个要复杂。那个曲线非常不平的,实际用起来
几乎肯定不会平。那个曲线很平的,实际用起来也可能会不平。因为比如录人声。人声
频率... 阅读全帖 |
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e****y 发帖数: 413 | 38 描述下现象我又不能知道他具体的idea啊。就像我跟你说我用了某种方法控制UPS,100
%整流性负载下THD 1.8%, 100%线性负载下THD 0.36%, 动态响应小于一个fundamental
周期,你能知道我用的什么方法吗?但是现象和要解决的问题你不就知道了 |
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p******s 发帖数: 137 | 39 【 以下文字转载自 Overseas 讨论区,原文如下 】
发信人: thd (thd), 信区: Overseas
标 题: Re: 故事结束了,现在老板正在看这片汪洋大水(truth
发信站: Unknown Space - 未名空间 (Wed Mar 3 11:26:11 2004) WWW-POST
Hello, Everybody. My name is Shen Youqing. I am the one who has been accused
by my former student, Wu Weiwei, as “cold blood”, unreasonable person posted
on this BBS. website.
I did not know I was famous due to this before a person unknown to me sent one
of the posts yesterday afternoon. Because she put her own version of truth
there, and sh |
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y*****n 发帖数: 11251 | 40 zmp和这个不是同样价位吧?zmp比thd高一级。裸机一个50一个150.带枪投靠thd白送,
zmp还要40. |
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u*****p 发帖数: 1110 | 41 thd基本都是20刀买的,奇怪怎么跟zmp比?thd其实最好一点就是轻薄,如果可以全网
通的话还不错。 |
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w*******y 发帖数: 60932 | 42 Link:
https://www.shoponkyo.com/detail.cfm?productid=HT-RC230&modelid=24&group_id=
1&detail=1
for new members join club Onkyo $100 otherwise $110
includes 15% disc for today only
I live in FL shipped $106.63 ($6.98 tax)
this has been posted before but not w/ 15% discount
Amplifier Section
Power Output* (8 ohm, 20 Hz-20 kHz, FTC)
Front L/R 60 W/Ch
Center 60 W
Surround L/R 60 W/Ch
Surround Back
Power Output* (6 ohm, 1 kHz, FTC)
Front L/R -
Center -
Surround L/R -
Surround ... 阅读全帖 |
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w*******y 发帖数: 60932 | 44 Link:
https://www.shoponkyo.com/detail.cfm?productid=HT-RC230&modelid=24&group_id=
1&detail=1
for new members join club Onkyo $102 otherwise $112
Amplifier Section
Power Output* (8 ohm, 20 Hz-20 kHz, FTC)
Front L/R 60 W/Ch
Center 60 W
Surround L/R 60 W/Ch
Surround Back
Power Output* (6 ohm, 1 kHz, FTC)
Front L/R -
Center -
Surround L/R -
Surround Back
Dynamic Power** (front)
3 ohm 160
4 ohm 125
8 ohm 85
THD (Rated Power) 0.7 % (2 channels driven)
Damping Factor (1 kHz, 8 ohm) 60
Input Sensitivit... 阅读全帖 |
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w*******y 发帖数: 60932 | 45 Denon AVR-4311CI 9.2-Channel A/V Surround Receiver:
http://www.newegg.com/Product/Product.aspx?Item=N82E16882683026
Brand
Denon
Type
Receiver
Model
AVR-4311CI
Color
Black
Channels
9.2-Channel
Processing
Power Output
140W Per Channel (8 ohms, 20Hz - 20kHz, THD 0.05%) / 170W Per Channel (6
ohms, 1kHz, THD 0.7%)
Decoder
HDCD Audio Decoder
D/A Converter
24-bit/192-kHz Audio D/A Converter
Video Upconversion
Composite to S-Video to Component
Analog to HDMI
Audio... 阅读全帖 |
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l*******r 发帖数: 121 | 47 https://thd.giftsinkind.org/ace/
The ACE China Earthquake Relief Campaign -
How You Can Help
Colleagues,
The situation in China is still dire nearly four weeks after a devastating
earthquake struck the Sichuan Province region. The numbers are staggering:
almost 70,000 dead, more than 300,000 injured, and nearly 20,000 still
missing. As for the survivors, many saw their homes reduced to rubble, and
it’s estimated that up to 5 million men, women and children in the region
are now homeless. |
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r******y 发帖数: 3838 | 48 发信人: avantgrade (山水青一色), 信区: Apple
标 题: 作为一名电子工程师,我来分析下苹果产品的技术优势
发信站: BBS 未名空间站 (Thu Oct 6 01:50:24 2011, 美东)
刚刚看了板上的帖子,里面有的人说苹果的优势就是在于用户体验,除此以外无他;有
的人说苹果的产品也就是外观好;有的说苹果的产品能令人产生宗教上的情感;还有的
说苹果的产品是卖给不懂看Tech Spec的大妈用的...
这些观点里面,有些在我看来属于“外行人看热闹”的阶段;有些说是基于感性认识的
阶段。我本人曾经做过电子系统设计,所谓内行看门道,我这里结合自己的经验来分析
一下苹果的产品技术到底先进在哪里。当然我相信这里有人比我更内行,所以写在这里
也只当抛砖引玉吧。
觉得apple产品“落后”的人首先喜欢从Tech Spec看起,那么我也先从这个说起。从市
面上的产品 Spec上看,iphone,MBP并不见得比别的公司同价位产品更先进。有的人说
IPHONE“CPU速度不如人家快,内存不如人家大,屏幕没有人家大...”。其实这么说的
人是只知其一不知其二。
追求更新... 阅读全帖 |
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