后级逐个看

edwintey

原帖由 kenlabs 于 9-11-2009 09:19 AM 发表
FM ACOUSTICS FM 108

FM發表了新的單聲道後級：FM 108，售價尚未知，屬於Resolution Series，其A類放大與防護系統與上級機種特性一樣。維持FM不妥協的精神與完全在瑞士手工打造。FM 108體積雖小，但並非使用交換 ...

没有说出价钱咧？  

jack2403kepong

是不是越大Watt 就代表越有power?

kenlabs

Pivetta Opera One 超级后级！

12声道x1600瓦 (8Ω) ！

售价$490,000美元！！！更多详情

nIchOllAsTee

Pivetta Opera One 超级后级！

12声道x1600瓦 (8Ω) ！

售价$490,000美元！！！
kenlabs 发表于 27-6-2010 10:10 PM

What the H is this?????
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如果Bridge成mono的话就。。。19000Watt!!!

TechMy

还有什么新的好料后级介绍？？？
这个好帖沉太久了吧。。。

kenlabs兄，那个FM ACOUSTICS FM 108相隔年多了。。多少钱？？
那么久以前的Amp了，有没有人要贱卖？？

kenlabs

kenlabs兄，那个FM ACOUSTICS FM 108相隔年 ...
TechMy 发表于 7-9-2011 10:37 AM

新的一部都要马币3万蚊。非常便宜！感动ing~

还有什么新的好料后级介绍？？？
这个好帖沉太久了吧。。。
TechMy 发表于 7-9-2011 10:37 AM

好啦~ 贴上这部醒醒神！
但切记不要看那女模... 因为你会不知不觉的爱上她！

Musical Fidelity AMS100






英國品牌Musical Fidelity推出AMS系列的全新純A類後級擴大機－AMS100。相信熟悉Musical Fidelity的發燒友都知道，此一系列全名為Antony Michaelson Signature，而Antony Michaelson就是Musical Fidelity老闆的名字，Antony Michaelson Signature名顧名思義就是老板的簽名系列。AMS系列產品可說是集Antony Michaelson所有對於音樂的品味與獨到的線路設計於一身，從命名上就看得出來老闆對此系列的重視，商品背後所代表的意義更是非凡。



AMS100後級擴大機是之前大受好評AMS50的後繼機種，造型可說一模一樣，不過原本AMS50的體積就很巨大了，沒想到這次AMS100更為壯觀。體積如此之大的原因，是AMS100的輸出功率比AMS50多了一倍，每聲道功率晶體數量多達20對，在8歐姆負載下，可以輸出純A類100瓦功率（4歐姆負載時則有200瓦），峰值電流出輸出更高達200安培，重量則有100公斤。Musical Fidelity特找來員工Sandy在機器旁合影，讓大家感受AMS100到底有多巨大。



依照Musical Fidelity資料顯示，AMS100在電路設計上是融合AMS50與旗下Titan系列產品各項優勢下的綜合體。除了強化原本AMS50所使用的橋接全平衡電路設計(Bridged Design)之外，這次AMS100在電路設計上分離的更加徹底，並設置獨立電源各別供應各部電路。同時使用更多的電容配置，讓聲音有絕佳的動態表現，如此的電路設計可大幅降低20Hz~20kHz之間的聲音失真。所以AMS100雖然推器強悍，但是總諧波失真卻低於0.005%，訊噪比則大於110dBA。



由上圖可以簡單比較Musical Fidelity所設計的AMS50、AMS100與一般傳統後級，不難想像這次AMS100不但推力更強猛，而且在聲音純淨度上也會有更傑出的表現。



此外，AMS100也使用了Musical Fidelity的獨家「Choke Regulated」技術，此一穩壓設計能夠減少高達88%的電源干擾，由上圖就可清楚看見，原本鋸齒狀的電流經過Choke濾波之後，大幅提升了聲音的純淨度，達到最理想的音質表現。




Musical Fidelity相信以AMS100絕佳的設計理念，其聲音絕對可以滿足對音質極為要求的音響迷。並表示「商品量產化」絕對不是他們當初設計AMS100時的首要目標，為音響迷研發出符合他們心中期待的產品，其崇高的聲音成就，才是他們主張的設計理念。

转自：www.audionet.com.tw








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官方详情：

AMS100 background information

The AMS100 is the most advanced pure Class A amplifier ever made. I know that this is a sweeping and powerful statement, but it is true.

Circuit topology

As far as I know the AMS50 is the first ever 50 watt pure Class A bridged amplifier. There are many advantages to a bridged amplifier; lower distortion and huge power supply noise rejection. These advantages are even more significant in a pure Class A configuration.

The AMS100 has the same basic circuit as the AMS50 but even more of it. In fact the AMS100 has precisely the same circuitry and number of output transistors as our monster Titan.

The AMS100 circuit configuration is unique and delivers excellent technical performance (more about technical matters below) and a beautiful sound.


Power supply configuration

Power supply configuration is usually the “poor relation” in amplifier design. Normally huge effort is put into the circuit and layout but the PSU configuration is taken for granted. Not so for the AMS100!

Pure Class A amplifiers draw enormous current. This exposes any deficiencies in power supply design. The AMS100 has a unique, never done before in the history of hi-fi, power supply design. Below are some circuit illustrations which show the major differences between the AMS100 and any other amplifier.

Specifications

Output: Power 1000 Watts per channel into 8 Ohms (30dBW),
Voltage 90 Volts rms 20Hz to 20 kHz
254 Volts peak to peak
Current limited to 100A peak to peak
Damping factor 250
Output devices 20 per side
Thermal cut out (internal temp) 70 ºC
Line input:
THD + N <0.008% 20Hz to 20 kHz
Signal / noise ratio >126dB ‘A’-weighted
Input sensitivity for 1000W 3V rms
Input impedance 100k Ohms balanced and unbalanced
Frequency response 20Hz to 40kHz -0.5dB
Connections:
Unbalanced Line level inputs: 1 pair line level RCA connector
Balanced inputs: 1 pair XLR (female) sockets
Speaker outputs: 2 pairs 4mm banana plug/binding posts per side
Trigger input 3.5mm/&#8539;” mono jack socket
Trigger level ±5V to ±12V
Power required: 100/115/230Volts AC 50/60Hz 1770 Watts maximum into 8 Ohms, 275 Watts idle (per side)
(Factory pre-set)
Main unit physical details:
Dimensions: 483mm 19 inches wide
185mm 7&#8531; inches high including feet
635mm 25 inches deep (front to back) including terminals*
Weight: 45kg 99lbs unit only, unboxed
Power Supply physical details:
Dimensions: 483mm 19 inches wide
185mm 7&#8531; inches high including feet
615mm 24&#188; inches deep (front to back) including terminals*
Weight: 68kg 150lbs unit only, unboxed
* In tight spaces, it is recommended to allow at least an additional 75mm or 3 inches for the connectors.
Shipping details:
Carton size: 610mm 24 inches Per box: A complete unit = 2 identical boxes,
375mm 14&#190; inches 1 for main unit; 1 for power supply and standard accessories
765mm 30&#8539; inches
Shipping weight
Main unit 50kg 110lbs in shipping carton
Power supply 75kg 165bs in shipping carton (includes all standard accessories, as listed below)
TOTAL 125kg 275lbs
Standard

TechMy

新的一部都要马币3万蚊。非常便宜！感动ing~

好啦~ 贴上这部醒醒神！
但切记不要看 ...
kenlabs 发表于 7-9-2011 04:27 PM

kenlabs兄介绍的都非常便宜，威力强大，我也非常感动。。～
但是还有更好的吗？？我要拿来推耳机的。

kenlabs

kenlabs兄介绍的都非常便宜，威力强大，我也非常感动。。～
但是还有更好的吗？？我要拿来 ...
TechMy 发表于 7-9-2011 03:46 PM

Marantz MM7025， 点睇？我个人就几鬼钟意~


  

靓仔靓靓！
[youtube]CVcZ-zM0NNs[/youtube]

Leolabs

唉，俺帮朋友DIY(in progress)单单材料都要3k了，只是300W@4 ohms.....

看到这些成品，价钱一定是比俺印象中还要......

什么都涨价.....

TechMy

Marantz MM7025， 点睇？我个人就几鬼钟意~  
靓仔靓靓！
kenlabs 发表于 8-9-2011 08:33 AM

哇，这个Marantz MM7025的确很美。。眼光不错。

以下两个Bladelius和Chord的我觉得也是很美。。。
但是价钱。。。
虽然不敌以上FM和MF，但也足够推我下海了。

我看上Bladelius Balder。

Bladelius Balder Specification: ~

Output	2 x 165W 8Ω
Distortion	< 0.01% Thd 20-20KHz
Input impedance	20K&#8486;
Inputs	1 balanced 1 unbalanced
Bandwidth	dc-200KHz
Transformer	Custom made special core
Speaker terminals	WBT
Weight	21 kg
Dimensions	440×445×125 mm (W×D×H)

还有这个Chord SPM 650。

Chord SPM 650 Specification: ~
Solid-state power amplifier with switching power supply and linear output stage. Maximum output power: 130Wpc into 8 ohms (21.1dBW) at 0.05% distortion, 170Wpc into 4 ohms (19.3dBW), 200Wpc into 2 ohms (17dBW). Dynamic headroom: 200Wpc RMS into 8 ohms, 360Wpc RMS into 4 ohms. Frequency response into 8 ohms: 0.2Hz–46kHz, –1dB; 0.1Hz–77kHz, –3dB. Voltage gain: 30dB. Signal/noise: better than –103dB, A-weighted, ref. 2/3 power. Output impedance: 0.02 ohm. Output inductance: 2.6mH. Stability: unconditional.

ERN2

Marantz MM7025， 点睇？我个人就几鬼钟意~  


  

靓仔靓靓！
kenlabs 发表于 8-9-2011 08:33 AM

    里架我都钟意，差一点就搞上它。
新国卖好便宜哦，不到1/2大马价。
但那个handler要蛮多钱下，我无哉，所以不成咯。