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o****e
发帖数: 536 | 2 是否有问题，计划上dt880 600 Ohm. 室内乐为主吧，有什么推荐的。
现在用dt440 32 Ohm |
|
p*****t
发帖数: 966 | 3 这么讲吧
LZ是1W带internal matching的PA,记住，是输出口已经匹配到50 Ohms的。 那么你在设
计输出端的传输线的时候，特征阻抗就是50 ohms.但是如果只是给出特征阻抗，那会有
无数种的设计，你可以设计成很细，也可以很粗。要是用CPW的话，也会有很多设计。
和介质的厚度，介电常数等都有关，当这些确定的时候，就可以考虑power density.
一般PCB的power density和金属层的厚度关系最大。如 100微米厚，7毫米宽的铜层可
以通过10安培的电流。
然后就是估算你的电流。LZ现在考虑的是1W的输出级上的电流，那个可能不是最重要的
。从你的片子来看的话，频率肯定在10G以内。假设是CLASS AB的PA，drain
efficiency是20%的话，那射频功率和耗散功率之和为5watts,假设是5V的drain
biasing, 那power supply上的电流大概在1A左右。RF输出级的RF电流会很小，就几百
个毫安，具体的，你可以用反射系数和电流的公式在MATLAB里plot一下，找出峰值电流
就可以。但是我觉得对于你的设计，完全没有必要 |
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m*********r
发帖数: 720 | 4 【 以下文字转载自 HiFi 讨论区 】
发信人: modderGamer (ModderGamer), 信区: HiFi
标 题: 出一个全新的Beyerdynamic DT 880 Premium 600 Ohm $295
发信站: BBS 未名空间站 (Sun Nov 24 01:45:43 2013, 美东)
全新，并不是太喜欢880的声音，可能是前端不行吧，感觉没有HD600对味。
有需要的同学PM或者email到：
m*************[email protected]
$295, my label |
|
m*********r
发帖数: 720 | 5 【 以下文字转载自 HiFi 讨论区 】
发信人: modderGamer (ModderGamer), 信区: HiFi
标 题: 出一个全新的Beyerdynamic DT 880 Premium 600 Ohm $295
发信站: BBS 未名空间站 (Sun Nov 24 01:45:43 2013, 美东)
全新，并不是太喜欢880的声音，可能是前端不行吧，感觉没有HD600对味。
有需要的同学PM或者email到：
m*************[email protected]
$295, my label |
|
w**********x
发帖数: 23 | 6 版上各位大牛,
Beyer Dynamic DT 990 Premium 600 OHM
什么价钱算比较有吸引力的 deal ? |
|
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F*********n
发帖数: 52 | 8 如果是1W RF output, 50 Ohm匹配的，那么电流和PCB布线如何决定？
初步是想这么计算的，Imax=sqrt[(1W)/(50Ohm)]*sqrt(2),大概是200mA.
但是如果主要是RF电流，决定PCB布线的时候是不是要考虑趋肤深度(skin effect)?如
果是的话应该如何决定共面波导的线宽(trace width)? |
|
w*******y
发帖数: 60932 | 9 Link:
http://www.headphone.com/
Has the 600 Ohm version of Beyerdynamic DT770 headphones for $199. These
average $250 and the lowest I've seen them was $180 on amazon about 8 months
ago.
Here's the direct link to the product page Link:
http://www.headphone.com/
This is my first time posting a deal, so if I messed something up, please
don't beat up on me too much
|
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f**d
发帖数: 768 | 10 这是一本计算神经科学的优秀著作，全文拷贝这里（图和公式缺），有兴趣的同学可以
阅读
如需要，我可以分享PDF文件（－－仅供个人学习，无商业用途）
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
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w*******y
发帖数: 60932 | 11 Newegg has the Onkyo HT-RC360 receiver for $279 with promo code EMCJJKB83
Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16882120178
Processing
Power Output
Front L/R:
100 W + 100 W (8 ohms, 20 Hz-20 kHz, 0.08%, 2 channels driven, FTC)
125 W + 125 W (6 ohms, 1 kHz, 0.1%, 2 channels driven, FTC)
Center:
100 W (8 ohms, 20 Hz-20 kHz, 0.08%, 2 channels driven, FTC)
125 W (6 ohms, 1 kHz, 0.1%, 2 channels driven, FTC)
Surround L/R:
100 W + 100 W (8 ohms, 20 Hz-20 kHz, 0.08%, 2 channels driv... 阅读全帖 |
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i*d
发帖数: 2640 | 12 673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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w*******y
发帖数: 60932 | 13 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 | 14 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 | 15 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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f*******e
发帖数: 8974 | 16 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 |
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a*******m
发帖数: 626 | 17 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 |
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n******9
发帖数: 336 | 18 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*******y
发帖数: 60932 | 19 This was front page a week or so ago at $424 and a lot of people wanted $400
. Here you go. Great network receiver at the $400 range. This plays
internet music directly from the receiver once you plug in internet access.
No computer needed. Two independent zones make another great option. Plus
there are 6 HDMI inputs which is well more than most can use.
Link:
General
Brand
ONKYO
Type
Receiver
Model
HT-RC270
Channels
7.2-Channel
Processing
Power Output
Front L/R
- 10... 阅读全帖 |
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t*****o
发帖数: 4919 | 20 玩万用表被电死了， 9V电池
so you get the answer now.
(1999) A US Navy safety publication describes injuries incurred while doing
don't's. One page described the fate of a sailor playing with a multimeter
in an unauthorized manner. He was curious about the resistance level of the
human body. He had a Simpson 260 multimeter, a small unit powered by a 9-
volt battery. That may not seem powerful enough to be dangerous… but it can
be deadly in the wrong hands.
The sailor took a probe in each hand to measure his... 阅读全帖 |
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E*******e
发帖数: 57 | 21 主要为K歌用,两者参数如下.
Bose 301 V speaker参数(Bose 301 V是6 ohms):
301: Compatible with amplifiers and receivers rated from 10 to 150 watts per
channel.
Rated 4 - 8 ohms
Onkyo TX-8050 stereo receiver参数:
100 watts minimum continuous power per channel, 6 ohms loads, 2 channels
driven at 1 kHz with a maximum total harmonic distortion of 0.1 % (FTC)
Dynamic Power
180 W (3 ohms, Front)
160 W (4 ohms, Front)
100 W (8 ohms, Front)
请问：两者匹配应该可以吧？
另外，用Stereo Receiver主要是参考版上有人曾提到:"卡拉ok，最好選一個可以直接
stereo play mode的，因為A... 阅读全帖 |
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s****h
发帖数: 3979 | 22 没人帮着回答一下呀？
我自己瞎说一下，看看对不对
以Klipsch Reference RF-52 为例子
它的数据是：
1）100W RMS / 400W Peak
2）8 ohms
这个speaker是8ohms nominal，就是平均8 ohm的意思。
RMS是平均值的意思（猜的），对应的就是8ohm，peak值是平均值的4倍，也就是说最小
Impedance是8ohm的一半，4ohm
(这么看起来，8ohm和100w这两个平均值，最多只有一个是在Frequency Response 内的
线性平均值。)
那么以Energy CF30为例子
1) 20-200 W /channel
2) 4 Ohms min./8 Ohms nominal
那么最小Impedance 4ohm对应200w
20w对应最大Impedance，大约是12 ohm
平均是50W/channel
receiver的spec：
Channels：5
RMS Output Power (1kHz)： 100W x 5
Total Power (20Hz - 20kHz)： 500W (1kHz ）
推动... 阅读全帖 |
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d*****d
发帖数: 10658 | 23 本来准备买108刀的Sherwood的,刚才在onkyooutlet里看到一个refurbished的Onkyo
8255,只有89刀,也有一年的保修.又挺动心的.毕竟Onkyo是老牌子.但它的输出功率才
50W,比Sherwood的100W少了一倍,担心推不动BS41.不过考古又看到有人用35W的luxman
推bs41比100W的Insignia好很多.所以想请教大家意见,多谢!
我基本上就是听安静的古典乐,看一些小众文艺片,不会开很大音量.
以下是两个receiver的specificiation
Onkyo:
50W per channel x 2, into 8 ohms
Dynamic Range
135W per channel x 2, into 2 ohms
105W per channel x 2, into 4 ohms
70W per channel x 2, into 8 ohms
No. of Channels
2
Sherwood:
Amplifier Output Details 105 Watt - 8 Ohm - 40 - 20000 Hz - TH... 阅读全帖 |
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w*****g
发帖数: 4298 | 24 It's BACK! For those of you who missed out on the first round of group-buy
for the Aune T1 on Massdrop, it has been re-added and the price is already
at the 119.99 tier. That's 45% off the MSRP of $219. Much better sound than
e17 since it has tube.
If 200 people total join (94 more at the time of writing) the price drops
even lower to 109.99!
Product Features:
Frequency response: 20hz-20khz
Signal to noise Ratio: >=120db
Line out: 2Vrms
Suitable headphone impedance: 30 ohm ~ 600 ohm
Headphone Am... 阅读全帖 |
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k******9
发帖数: 878 | 25 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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x******r
发帖数: 538 | 26 我最终是想弄stereo 音箱系统的，现在没弄音箱，搞了CD player，带USB输入的可以
输入其他数字音源，还有一个很入门但也评价不错的receiver，yamaha r s201，
speaker准备明年回来搞（现在有built in DAC 和AMP的音箱）。我买之前做了一些研
究，比较耳放和receiver，貌似大家都说有耳机输出的receiver可以代替耳放的，我也
不想经常用耳机，所以就觉得弄receiver，主要用音箱，想用耳机的时候也能用，两用
，比耳放划算多了，不过今天用16 Ohm和32 Ohm的几个耳机试了一下，音质都很差，噪
声水平很高，音量关小能听到明显的噪声，但是receiver接到speaker上还是正常的，
我怀疑是receiver耳机输出阻抗的问题，耳放是专门设计来推16 Ohm到几百 Ohm的耳机
的，应该普通耳机都能有很大的输出提升，但是receiver这个耳机孔是设计给啥阻抗（
估计很高）的，如果阻抗没问题这种输出水平那也太差劲了，不知道大家有receiver的
有没有试过。是我的receiver有问题还是耳机用的不对。
250 Ohm的耳机... 阅读全帖 |
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k******9
发帖数: 878 | 27 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*****s
发帖数: 110 | 29 我有一个bookshelf音响，想找一个合适的功法。一直没搞懂选择怎么样的功放。
音响：
Cambridge Soundworks Model Six Bookshelf Speaker：
http://store.cambridgesoundworks.com/Model-Six-Bookshelf-Speake
Pair/M/B0034ZZ5W6.htm
参数概要：
One 3/4-inch cone tweeter with a center dome and an 8-inch woofer
FREQUENCY RESPONSE 50HZ - 20KHZ
MIN/MAX POWER 15 WATTS / 150 WATTS
SENSITIVITY 90DB
NOMINAL IMPEDANCE 8 OHMS
发现Amazon上有一个功放：
Pioneer GM-D8500M Class-D Mono Amplifier with 1200 Watts Max. Power
http://www.amazon.com/exec/obidos/... 阅读全帖 |
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t****y
发帖数: 576 | 30 speaker power 25-150w,8ohm
看了Onkyo TX-8255，感觉好像功率不够，不知道是不是我没有读懂参数
# Stereo RMS Power: 50W per channel x 2, into 8 ohms
# Dynamic Range: 135W per channel x 2, into 2 ohms, 105W per channel x 2,
into 4 ohms, 70W per channel x 2, into 8 ohms
# No. of Channels: 2
# Speaker Selector: Yes |
|
w**t
发帖数: 1037 | 31 最近几个月特别忙,音乐听得也不多了.不过krell 400xi 我还是比较熟悉的,而且朋友
在用s300i. 所以偷空回一下.
关于价格,9 成新 400xi 在1300-1400 算不错的deal, 1600 以上贵了.
s300i 价格在 1500 左右算不错.
下面是我以前买400xi 做 research 时从国内一个论坛搜到的,觉得比较中肯, 供你参考
again, 不是我的原创.
===============
产地：
400Xi ＝ 美国
S300i ＝ 中国
正常来说，如果两台机器价格一样，那应该是美国制造比较有价值。 400Xi 占优。
外型：
400Xi ＝ 只有两个数字显示音量
S300i = 蓝底液晶显示音量和讯源名称。 S300i 占优。
变压器，电容：
400Xi = 变压器近800VA，电容55000uF. 200w/8 ohm, 400w/4 ohm.
S300i = 变压器近750VA, 电容38000uF. 150w/8 ohm, 300w/4 ohm. 400Xi 占优
重量：
400Xi = 16.5Kg
S300i = 19.5K... 阅读全帖 |
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l**d
发帖数: 133 | 32 这个行不行？Onkyo M-282 2-Channel Power Amplifier
另外再请教一下， Stereo RMS Power: 50W per channel x 2, into 8 ohms
Dynamic Range: 135W per channel x 2, into 2 ohms, 105W per channel x 2, into
4 ohms, 70W per channel x 2, into 8 ohms
这个动态功率是啥意思？能不能把sb41接在135W上推？谢谢。 |
|
Y**i
发帖数: 3016 | 33 Altec Lansing GT5051 Computer Speaker 5.1 - $25 obo
in excellent condition
$25 (MSRP: $150)
please email me at PurdueUSA .at. gmail.com or call me 765-409-8119 if
interested
see more info and reviews here:
http://www.bing.com/shopping/Altec-Lansing-GT5051-PC-multimedia-home-
theater-speaker-system/search?q=altec%20lansing%20gt5051&p1=
[CommerceService+scenario%3d%22s%22+docid%3d%22B391DE8CEB478D5874A1%22]&
wf=Commerce&qpvt=altec+lansing+gt5051
SPECIFICATIONS
The GT5051 is a genuine 5.1 surround ... 阅读全帖 |
|
L*******y
发帖数: 231 | 34 贡献一下经历，希望对后来人有帮。
昨天和skywork 的人 phone screen 了一把。他们两个人，从iowa打来。开头主要问现
在在做什么，谈谈phD的课题，用过什么设备，仿真软件的应用（ADS's harmonic
balance and Momentum).之后他们有问了一些基本概念，我尽量列出来：
1. Q:A FET in common souce, the voltage on load is in phase or out of phase
of input signal?
A: out of phase.
Q: How many degree?
2. where is 0Ohm, 50Ohm, 25Ohm on smith chart.
3. How to match from 25 Ohm to 100 Ohm with inductor and capacitor
4. How to match from 25 Ohm to 100 Ohm with a piece of transmission line.
5. The advantage of Clas |
|
c******k
发帖数: 1140 | 35 想买ITO coated glass substrate, 无论是买商业产品还是自己镀膜，没经验不知道镀
多厚，ITO作为电极用。
我们的应用是电阻值不考虑，下面是商业产品的镀膜厚度及相应的电阻值，
70-100 ohms (15-30 nm);
30-60 ohms (30-60 nm);
15-30 ohms (60-100 nm);
8-12 ohms (120-160 nm);
ITO薄的便宜，但是不清楚15~30nm 的ITO 适合做电极吗，要直接连接电线的。买哪种
合适？谢谢 |
|
w*******y
发帖数: 60932 | 36 Onkyo HT-RC360 7.2-Channel Network Audio/Video Receiver (Black)
Amazon link:
http://www.amazon.com/Onkyo-HT-RC360-7-2-Channel-Network-Receiv
Typically around $400, so seems like a good deal.
Details
Technical Details
100 Watts per Channel at 8 Ohms, 20 Hz-20 kHz, 0.08%, 2 Channels Driven,
FTC; 125 Watts per Channel at 6 Ohms, 1 kHz, 0.1%, 2 Channels Driven, FTC
6 HDMI Inputs and 1 Output, HDMI Support for 3D, Audio Return Channel,
Deep Color , x.v.Color , Lip-sync, Dolby TrueHD
DTS-H... 阅读全帖 |
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w*******y
发帖数: 60932 | 37 Amazon just reduced the price on Onkyo HT-RC360 7.2-Channel Network Audio/
Video Receiver (Black).
$321.44
Link:
http://www.amazon.com/Onkyo-HT-RC360-7-2-Channel-Network-Receiv
This is am awesome Receiver for the price and compares head on to:
Denon AVR-1912
Yamaha RX-V671
Pioneer VSX-1021-K
Technical Details
100 Watts per Channel at 8 Ohms, 20 Hz-20 kHz, 0.08%, 2 Channels Driven,
FTC; 125 Watts per Channel at 6 Ohms, 1 kHz, 0.1%, 2 Channels Driven, FTC
6 HDMI Inputs and 1 Output, HDMI S... 阅读全帖 |
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w*******y
发帖数: 60932 | 38 Onkyo HT-RC360 7.2-Channel Network A/V Receiver $299.99 Shipped Amazon
Amazon just reduced the price on Onkyo HT-RC360 7.2-Channel Network Audio/
Video Receiver again(Black). Was lowered again from $320 or so a few days
ago and now matches what Fry's has been listing it on-sale for, minus the
tax.
$299.99
Not a bad deal and compares with the following but lacks airplay.
Denon AVR-1912
Pioneer VSX-1021-K
Yamaha RX-V671
More Details:
100 Watts per Channel at 8 Ohms, 20 Hz-20 kHz, 0.08%, 2 Channels... 阅读全帖 |
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l****g
发帖数: 1922 | 39 汽车加速的时候有点抖，火花塞是新换的，wire set看起来也没什么问题，
我检查了一下 ignition coil，
手册上 primary resistance是 0.4-0.6 ohms，
secondary resistance 是 15-17Ｋ ohms，
我的ignition coil的 primary 是 1.3 ohms， secondary是 13k，
有版友对这玩意儿熟悉的么？ 我担心买了个新的换上，一点点变化都没有。
我这个抖动会不会因为这个阻值不对引起的？
谢谢啦 |
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s*****o
发帖数: 1540 | 40 我对音响一窍不通，希望大侠推荐300元之下的功放:
http://www.martinlogan.com/pdf/manuals/manual_mlt2.pdf
MLT-2 SPEAKER (front and rear)
System Frequency Response
110–20,000 Hz ± 2db
Sensitivity
88 [email protected] volts/meter
Impedance
8 Ohms compatible
Crossover Frequency
2000Hz
Tweeter Type
1” (2.54 cm) soft dome
Woofer Type
4.5” (11.5 cm) high rigidity poly cone
with extended throw drive assembly
Enclosure Type
Non-resonance asymmetrical
chamber format, sealed
Suitable Amplifier Range
15–100 watts
Power Handling
50 watts
Wei... 阅读全帖 |
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x*******c
发帖数: 228 | 41 前一段入了frys的jamo s426，手里有一个onkyo的NR509，请问能推起来吗？
s426的两个主箱功率100／140W，电阻 6ohms
功放说明树上标着
80 Watts/Channel @ 8 ohms (FTC)
130 Watts/Channel @ 6 ohms (IEC)
160 Watts/Channel @ 6 ohms (JEITA)
多谢了！ |
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p***a
发帖数: 316 | 43 Suppose the impedance of your speaker is 4 ohms, and its Continuous Power
Handling is 100 W. If you are playing light dance music, the amplifier's 4-
ohm power should be 1.6 x 100 W or 160 W continuous per channel. To handle
heavy metal/grunge, the amplifier's 4-ohm power should be 2.5 x 100 W or 250
W continuous per channel.
quote from
http://www.crownaudio.com/amp_htm/amp_info/how_much_power.htm |
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p********e
发帖数: 16048 | 44 The electrical impedance remained above 6 ohms at all frequencies (fig.1,
solid trace). The average was closer to 9 ohms, which both means that the SP
-BS41-LR—who thought of that name?—will be an easy load for the partnering
amplifier to drive, and suggests that the specified 6 ohms figure is too
pessimistic.
http://www.stereophile.com/content/pioneer-sp-bs41-lr-loudspeak
实线部分 |
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b**w
发帖数: 283 | 45 是 Control4 的multiple channel amplifier,上一个房东留下的：
Model Number C4-16AMP3-B
Analog Input Sources 16
Digital Input Sources 0
Speaker Output Zones 8
Line Level Output Zones 0
Rated Wattage
per Channel 120 @ 8 ohms
220 @ 4 ohms
Frequency Response 19 Hz – 20 kHz
+/-.5dB @ 8 ohms
+/- .2dB @ 4ohms
Signal-to-Noise Ratio >95 dB
THD <0.05% –... 阅读全帖 |
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L**Q
发帖数: 4 | 46 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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s*****g
发帖数: 939 | 47 From Onkyo specification sheet:
• 110 Watts/Channel @ 8 ohms (FTC)
• 170 Watts/Channel @ 6 ohms (IEC)
• 185 Watts/Channel @ 6 ohms (JEITA)
Yamaha那个更复杂，不过怎么比也是Onkyo高一些
Link里的确实没什么混响。爆音就是唱到高音或者吼的时候会失真，杂音过大，跟录音
时候过载可能是一样的，看起来M60还不至于
sub |
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z**x
发帖数: 3629 | 48 谈谈综述，使用和购买的看法。
拜亚动力 beyerdynamic DT 880 PRO
在Amazon上有三款。
250 OHM，32 OHM, 和600 OHM。
有报纸。 |
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j**a
发帖数: 119 | 49 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 | 50 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！ |
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