|
i****h
发帖数: 3161 | 2 我想卖的物品:
【出售】5* ATH-CK6A In-Ear Headphones (Silver) $28
单张面值:
可接受价格(必须明码标价！):
28
物品新旧要求:
brand new with UPC removed
邮寄方式要求:
YL
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
Billpay/BOA/paypal
其他补充说明:
广告的有效期:
till gone
物品来源(Required for All Cards!):
我的联系方式:
PM
.: ATH-CK6A In-Ear Headphones (DISCONTINUED) :.
Write the first review Product Q&A
Be the first to ask a question.MSRP* US$59.95
*Manufacturer's Suggested Retail Price.| Actual selling price may vary;
please check with an authorized Audio-... 阅读全帖 |
|
c*********7
发帖数: 7607 | 3 here it is raining very hard.
should impede many people's saohuo intention! |
|
y***r
发帖数: 16594 | 4 TO WHOM IT MAY CONCERN
On Saturday February 2nd I placed an order for a dell XPS 8500 computer
through amazon.com. After spending
some time reading reviews on various web sites I was confident that this was
a good choice for a desktop computer.
When the computer arrived on Tuesday February the 5th I was excited as I was
between jobs and had time to set
up my new system. Equipped with two brand new monitors from Costco, one a 32
inch TV and one a 24 inch
monitor I had the makings of the ideal com... 阅读全帖 |
|
A********e
发帖数: 354 | 5 【 以下文字转载自 Biology 讨论区 】
发信人: albertsmwk (.)(.), 信区: Biology
标 题: 第一批“青年千人计划”生物类@publication列表@
发信站: BBS 未名空间站 (Thu Aug 18 15:04:16 2011, 美东)
花了一个小时，深深的鄙视一下自己的无聊行径！！
125 蔡亮 男 1980年11月 复旦大学 生命
科学 2007年12月毕业于[美国]北卡大学 [美国]加州大学旧金山分校 博士后
Cai L, Mostov K. Polarity is destiny. Cell. 2009 Nov 13;139(4):660-2. PubMed
PMID: 19914162; PubMed Central PMCID: PMC2900917.
Cai L, Makhov AM, Schafer DA, Bear JE. Coronin 1B antagonizes cortactin and
remodels Arp2/3-containing actin branche... 阅读全帖 |
|
C***t
发帖数: 915 | 6 Should female faculty get bonus points to correct for gender bias in student
evaluations?
来源：http://theconversation.com/
感觉写的有点儿太过，不是很同意，不过share来看看。
Now that most colleges and universities have completed their spring
semesters, course instructors are opening up sealed manila envelopes, all
over the country, to read their teaching evaluations.
And, like each year, what they’ll find has been pervasively slanted by
gender bias.
As a professor, a member of the academy and a woman, I am deeply concer... 阅读全帖 |
|
x*******6
发帖数: 994 | 7 I have an article about the electric modulus and mechanism analysis on an
electric ceramic. You should be an expert in the area of AC conductivity,
electric modulus analysis, and electrical conduction mechanism of electrical
ceramic. You should have deep knowledge in XRD, Impedance analysis in
electrical conductivity, dielectric properties and relaxation behavior of
electric materials, AC conduction experience model like barrier hopping
model (CBH). I prefer to recommend you if you have the rela... 阅读全帖 |
|
i****h
发帖数: 3161 | 8 我想卖的物品:
【出售】5* ATH-CK6A In-Ear Headphones (Silver) $28
单张面值:
可接受价格(必须明码标价！):
28
物品新旧要求:
brand new with UPC removed
邮寄方式要求:
YL
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
Billpay/BOA/paypal
其他补充说明:
广告的有效期:
till gone
物品来源(Required for All Cards!):
我的联系方式:
PM
.: ATH-CK6A In-Ear Headphones (DISCONTINUED) :.
Write the first review Product Q&A
Be the first to ask a question.MSRP* US$59.95
*Manufacturer's Suggested Retail Price.| Actual selling price may vary;
please check with an authorized Audio-... 阅读全帖 |
|
i****h
发帖数: 3161 | 9 我想卖的物品:
【出售】5* ATH-CK6A In-Ear Headphones (Silver) $28
单张面值:
可接受价格(必须明码标价！):
28
物品新旧要求:
brand new with UPC removed
邮寄方式要求:
YL
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
Billpay/BOA/paypal
其他补充说明:
广告的有效期:
till gone
物品来源(Required for All Cards!):
我的联系方式:
PM
.: ATH-CK6A In-Ear Headphones (DISCONTINUED) :.
Write the first review Product Q&A
Be the first to ask a question.MSRP* US$59.95
*Manufacturer's Suggested Retail Price.| Actual selling price may vary;
please check with an authorized Audio-... 阅读全帖 |
|
b*z
发帖数: 48 | 10 personal preference
sennheiser the best and most expensive.
sony good.
others don't get them.
recently obtained an HD270 from www.sennheiserusa.com
tech info
transducer: dynamic
ear coupling: circumaural, closed
freq. res.: 12 - 22,000 hz
characteristc @1k hz: 106 db
thd: <.2%
nominal impedance: 64 ohms
connector: 1/8 stereo mini-jack w/ 1/4 adaptor
connection cable: 10ft. single-sided, ofc
weight(w/o cable): 7.7 0z
realy good stuff bringing me terrific enjoyment.
for comments look up www.headwi |
|
s***a
发帖数: 4921 | 11 JBL Venue Series Monitor 5-Inch 2-Way Speakers (Pair) $107.69 Shipped
http://www.fatwallet.com/t/18/652943/
This is about $70 less then most places are selling these.
* Maximum Recommended Amplifier: Power 125 Watts
* Handling: (Continuous/Peak) 60/240 Watts
* Impedance: 8 Ohms nominal
* Sensitivity: (2.83V/1m) 86dB
* Frequency Response: (-3dB) 68Hz - 20kHz
* Crossover Frequency: 3000Hz
* High-Frequency Transducer: 3/4 inch (19mm) Titanium-laminate dome,
shielded
* Low-Frequency Transducer: 5 in |
|
k*****n
发帖数: 9823 | 12 ☆─────────────────────────────────────☆
singa (Lost In Translation) 于 (Thu Sep 14 00:12:03 2006) 提到:
JBL Venue Series Monitor 5-Inch 2-Way Speakers (Pair) $107.69 Shipped
http://www.fatwallet.com/t/18/652943/
This is about $70 less then most places are selling these.
* Maximum Recommended Amplifier: Power 125 Watts
* Handling: (Continuous/Peak) 60/240 Watts
* Impedance: 8 Ohms nominal
* Sensitivity: (2.83V/1m) 86dB
* Frequency Response: (-3dB) 68Hz - 20kHz
* Crossover Frequency: 3000Hz
* Hi |
|
y****e
发帖数: 23939 | 13 我的低音音箱坏了，想换一个，是一定要和原来一摸一样的呢，还是能匹配就行了。
匹配的话，我看见音箱上写着“rated impedance 1.5(欧姆符号)”，是不是再买个低
音音箱也是阻
抗1.5欧就可以了？
初级问题，谢谢指教，专家勿笑。 |
|
g*********t
发帖数: 24 | 14 补充一点信息：
刚刚在网上搜索到了receiver和401的manual，receiver是8欧100w/channel的，
bose401的manual最后有一点是这么写的：
Compatibility/Impedance
Compatible with amplifiers and receivers rated from 10 to 200 watts per
channel. Rated 4 to 8ohms.
从上面的bose401使用说明看来，是不是我这么搭配应该至少不会对receiver和speaker
产生damage啊？
再次感谢！ |
|
V*****n
发帖数: 893 | 15 I don't know much, but the input/output impedance with not match.
！ |
|
a***y
发帖数: 19743 | 16 因为用的人多。。。你说的没听说过。
Head-Fi和erji.net上讨论iBasso的比较多。。。。
评价还可以，所以我就在考虑。
刚从一个中国人那里买了个二手的iBasso D4
Main features:
- Dual Wolfson WM8740 DAC Chip + TI PCM2706
- USB signal input, provides I2S interface for decoding
- Works as a DAC+AMP Combo, a standalone AMP, or a standalone DAC (Line out
function)
- 2-Setting Gain Switch for impedance matching
- OPAMP rollable
- AMP section can be powered by either USB or 9V battery
- Measures 55*21*92mm, and weighs 130g
- 9hours play time with 9V 300mAh battery (when |
|
|
V*****n
发帖数: 893 | 18 I just bought a marantz 7002 too from amazon a couple of days. now that the
7005 is coming out, the 7002 is a superb deal. marantz has always had a
great emphasis on the mid (where most music is) and lack the power output
required for the bass (in full range audio, half of the power is consumed by
frequencies below 350hz). so this makes marantz not suitable for insensitive
speakers or low impedance speakers. the 683s are fine. but if you want to
play your movie really loud, you can always set yo |
|
f****i
发帖数: 20252 | 19 audio frequncy transformer tuned for 10kOhm impedance. |
|
|
k*****n
发帖数: 9823 | 21 ☆─────────────────────────────────────☆
kangkangtu (康康兔) 于 (Tue Mar 29 18:22:31 2011, 美东) 提到:
看起来真不错，是不是山寨版的805啊？
后面的那个小switch是干啥用的啊？
shipping的
☆─────────────────────────────────────☆
perliu (面朝大海，春暖花开) 于 (Tue Mar 29 20:47:29 2011, 美东) 提到:
拷贝一个英文的说明。。。哈哈。。有点长。
每个音箱 18磅重。
Aural Ecstasy TAD-805SD bookshelf monitors are for those seeking an intimate
in the room holographic musical experience. Perfect for jazz, blues,
acoustic and orchestral music, they rock too – just not ear drum cracki... 阅读全帖 |
|
D**********s
发帖数: 3139 | 22 For high impedance headphones >300ohm, hell yeah... |
|
D**********s
发帖数: 3139 | 23 Turn on the switch...
you need a preamp for coil mic to bring signal up to line level or a phantom
amp for condenser mic. I bet your headset mic has much lower impedance
than your 58s. |
|
|
H****y
发帖数: 221 | 25 Yes, the issue is their low impedance and low sensitivity. I have a Marantz
PM 8004 and seems it should be fine for a small room.
Thank you so much for your advice.
speakers(
it |
|
r*****8
发帖数: 2697 | 26 昨天刚刚order了E10, 看了说明书:
Suitable Headphone Impedance: 16Ω~300Ω
推600ohm的DT880是不是太累了?
明天就可以收到了E10, 期待ing... |
|
l**4
发帖数: 2989 | 27 local有人卖，想搞来当家庭影院的主音箱，目前的卫星箱还是觉得不够劲儿
对mission不太了解，不知道mission的7开头的音箱是什么定位的
一米四高，33公斤重，大概参数如下：
Power Handling: 25 - 250 wpc
Impedence: 8 ohms
Enclosure: 3-way reflex loaded - 2 x 8" bass drivers, 1 x 6" midrange, 1 x 1
.5" tweeter. Can be bi-wired / bi-amped
Frequency Response: 30Hz - 20kHz (-3dB @ 25Hz)
Dimensions (HxWxD): 140 x 26 x 42cm
Weight (ea.): 33kg |
|
D**********s
发帖数: 3139 | 28 701s are all colored a bit to the cold and dry side, but the curves won't
tell. They are easy to drive low impedance cans but not easy enough to
impress ppl. A bit more ubdistorted power and EQ may get them right. |
|
R******d
发帖数: 1436 | 29 必须是同一品牌的厂商推荐搭配吗？
如果书架箱和中置采用不同品牌，impedance，efficiency或者别的指标哪个要求越接
近越好？
多谢。 |
|
p***a
发帖数: 316 | 30 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 |
|
s*****n
发帖数: 10890 | 31 在网上研究了很久 还是很纠结该买哪个 大家给给建议把~~ 谢谢！
我听歌准备用laptop （sony VGN-FW290 08年的机器了 声卡是realtek HD audio）。
不知道这个声卡集成的DAC效果怎样，需要e7？ e6毕竟便宜很多啊 而且好像更新 （e7
似乎跟e5 是同期，e6 修复了一些hiss 问题。又看到review说e6 一定程度上效果比e7
更好。但我不知道他说这个时指的是ipod，cd机或者 laptop）
另外也在考虑e17. 因为我之后可能还会买一个耳机（最近还入手了 UE600 in-ear 和
sony MDR-NC200D）。不过看了版上很多讨论后决定不买大impedance耳机（功放太贵了
。。。。。）
就我这情况，我需要入e7或者e17吗？
谢谢！ |
|
Y*******g
发帖数: 150 | 32 Frequency response: 50Hz-23kHz +/-3dB
power handling: 75W RMS / 300W Peak
sensitivity: 92dB @ 2.83V / 1m
nominal impedance: 8 ohms compatible
high frequency drivers: 1" (2.54cm) Titanium diaphragm compression driver
mated to 90x60 square Tractrix® Horn
high freq crossover: 2000Hz
low frequency drivers: 5.25" (13.3cm) Cerametallic™ cone woofer
enclosure type: Bass-reflex via rear-firing port
height: 11.4" (29cm)
width: 6.5" (16.5cm)
depth: 10.75" (27.3cm)
mounting: Keyhole bracket and ... 阅读全帖 |
|
p********e
发帖数: 16048 | 33 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 |
|
a****a
发帖数: 5763 | 34 看看这楼里dota说得那句就行了, 自己体会
1" custom Soft Dome Tweeter
5" custom Poly Woofer
Frequency Response - 70Hz to 20kHz +/- 2 db
Impedance - 8 ohm
Suggested Power - 10 to 60 watts tube, 20 to 120 watts solid state
Efficiency - 84db
Max SPL - 100db
Size - 190w × 160d × 305h (mm)
70hz - 20k hz用来听钢琴和交响。。。呵呵，呵呵
发信人: Dotaallstars (Dotaallstars), 信区: HiFi
标 题: Re: 2012 NYC音响展印象-结束
发信站: BBS 未名空间站 (Sun Apr 15 22:30:50 2012, 美东)
35a放在这种环境下很吃亏了，应该在狭小一些的空间用单端胆机来推，两个箱子摆比
照片上近一些就能感觉到这个小喇叭扑面而来的能量了。 |
|
l****e
发帖数: 476 | 35 http://www.musiciansfriend.com/stupid/?icid=200510&CJAID=103812
查了下spec,
Recording and playback formats
WAV: 44.1/48/96 kHz, 16/24-bit (stereo or monaural)
MP3: 44.1 kHz, 32/64/96/160 kbps (monaural), 64/128/192/320 kbps (stereo)
/LINE OUT jack
Connector: 1/8” (3.5-mm) stereo mini-jack Output impedance: 200Ω
Nominal output level: –18 dBV
Maximum output level: –2 dBV
106TASCAM DR-08
11 – Specifications
Maximum output: 5 mW + 5 mW (into 16Ω) |
|
p********e
发帖数: 16048 | 36 看了下 162 的spec
Frequency Response (±3dB) 49Hz - 20kHz
Recommended Power Amplifier Range 10 - 150 watts
Sensitivity (2.83V @ 1m) 90dB
Nominal Impedance 8 ohms
Crossover Frequency(ies) 3,000Hz; 24dB/octave
Low-Frequency Driver 6-1/2" (165mm) MMD?
High-Frequency Driver 3/4" (19mm) MMD?
90dB啊！！！ 8 ohm !!!!! |
|
l********l
发帖数: 9452 | 37 head-fi review：
Details: Latest dynamic-driver offering from one of Head-Fi’s favourite
brands
Current Price: $149 from Head-Direct.com (MSRP: $149)
Specs: Driver: Dynamic | Imp: 150Ω | Sens: 95 dB | Freq: N/A | Cable: 4’ L
-plug
Nozzle Size: 5mm | Preferred tips: Large stock bi-flange, Meelec ‘balanced
’ bi-flange
Wear Style: Straight down or over-the-ear
Accessories (4.5/5) – Single-flange (3 sizes) and bi-flange (2 sizes)
silicone tips, replacement filters (5 pairs), and shirt clip; latest v... 阅读全帖 |
|
a******s
发帖数: 4052 | 38 http://web.archive.org/web/20010117182700/http://www.celestion.
CELESTION 1
The new Celestion 1 is a masterpiece of loudspeaker engineering designed
to enhance any of today's music systems, whether as an upgrade to a Midi
system, or for use in a more audiophile set-up. This high quality speaker
utilises Celestion's renowned 1" (25mm) titanium dome tweeter along with a
special new 4" (105mm) felted fibre cone mid/bass unit to provide superb
sound reproduction. Coupled with the compact slee... 阅读全帖 |
|
s**e
发帖数: 165 | 39 已经有4个音箱作为左右主音箱和左右环绕了，需要再买3个作为中置和左右后环绕。另
外准备再买一个subwoofer。现有的音箱都是8欧姆，sensitivity在88-89db。那么新买
的音箱也必须是8欧姆，且sensitivity最好匹配么？subwoofer似乎都是有源的，就不
需考虑这些了吧。新手问题，谢谢指教。 |
|
d******0
发帖数: 22800 | 40 32-ohm impedence with 101dB/mW sensitivity
这低阻和高灵敏，一般DAC就能搞定了，好像不需要400刀这么贵。看看，EMU 外置声卡
0204 如何？ |
|
L*****k
发帖数: 13042 | 41 sometimes impedance is marked on the stereo plug. |
|
D**********s
发帖数: 3139 | 42 Type Open-air dynamic stereo headphone
Frequency Response 20 - 20,000 Hz
Impedance 32 Ω
Maximum Input Power 30 mW
Sensitivity 98 dB/mW
Driver Unit Diameter 14.6 mm
Plug 3.5 mm L-Type 3P mini-plug
Cable Length 1.2 m
Features • Tangle-free cord • Neodymium Magnet for High Quality,
Dynamic Bass
本来动圈耳塞子造价就不应该太贵，用坏了换一个就行了。 |
|
j***k
发帖数: 2719 | 43 when doing bi-amping, both amp must be of the same brand, model and spec.
amps from different brands, all have different impedences. Same level of
outputs to different amps would sound very different. There is also timing
difference.
i don;t think you can do what you were describing...
CM5
single
will
channel.
separately |
|
g*******a
发帖数: 46 | 44 这对音箱现在有特价，正在打算组建家庭K歌系统，音箱不在行，所以请教了。
http://www.frys.com/product/7580966
BUILT FROM: 2010
CROSSOVER FREQUENCY: 2250Hz
DEPTH: 8" (20.3cm)
ENCLOSURE TYPE: Bass-reflex via rear-firing port
FINISH: Black Ash vinyl
FREQUENCY RESPONSE: 62Hz-23KHz ± 3dB
HEIGHT: 12.5" (31.8cm)
HIGH FREQUENCY DRIVER: .75" (1.9cm) Aluminum diaphragm compression driver
mated to 90° x 60° square Tractrix® Horn
INPUTS: Single binding posts
LOW FREQUENCY DRIVER: 5.25" (13.3cm), magnetically shielded IMG woofer
NOMINAL IMP... 阅读全帖 |
|
z*****n
发帖数: 7639 | 45 一般receiver都没有直接接耳机输出的接口，
找个3.5mm to RCA线，阻抗匹配不了，receiver
打到最大功率也没多少音量。哪里能够找到
3.5 to RCA impedance adapter? |
|
b**********y
发帖数: 7371 | 46 look like good cadidates for hi impedance closed cans.
anyone has come across one? |
|
d********l
发帖数: 4221 | 47 自己找到答案了，给大家分享一下
大概意思就是digial coax都可以做subwoofer的线
但距离长了，digial coax需要抗阻75欧的。 sub就无所谓
Digital Coaxial cables are coax cables with a nominal impedance of 75 ohms,
whereas subwoofer cables just need to be any good quality screened cable.
Over short distances, any cable will work fine for digital audio but you wil
l find you have problems at lengths over about two metres if you don't use 7
5 ohm coax.
For the subwoofer, a good quality digital audio cable would work just as wel
l as a normal screened ... 阅读全帖 |
|
j********b
发帖数: 565 | 48
I will never do this, because the impedance of the speakers will decrease
dramatically, it may harm the amp. |
|
d**********r
发帖数: 24123 | 49 查了一下，原来是这样：
most amps nowadays are only measured at 1khz@8ohms where amps from the 70's
to early 90's are measured 20hz-20khz@1w into 8ohms and power doubles lower
the impedance. |
|
k******9
发帖数: 878 | 50 如果买BMB CSX-550 400W 8" 3-Way Speaker System ，这是它的参数：
Type: 3-Way, 3-Speaker Bass Reflex System
Speaker: One 8" Woofer each, Two 3" Tweeters each
Max Power: 400W
Sensitivity: 90dB/W/m
Impedance: 8 ohms
Dimensions: 18.27"(L) x 10.12"(W) x 10.55"(D)
Weight: 19.842 lbs each
那和Onkyo TX-NR626 receiver能搭配吗？ |
|
