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前级功放/控制放大器 产品排行榜
星座(群星荟萃)Constellation Audio Inspiration PreAmp 1.0 前级功放
该产品入选: 美国天书TAS推荐最值得购买的功放精品 天书TAS 2015年度评选:“前级功放”获奖产品 美国天书TAS 2015年金耳朵奖(Golden Ear Awards)获奖产品专辑 美国发烧天书TAS推荐20款HIFI功放精品 英国《Hi-Fi +》杂志发布“2016年度最佳发烧音响产品奖” 2016年美国发烧天书编辑选择奖:“前级功放”获奖产品专题(上) 欧美媒体极力推崇的4款发烧音响功放 美国发烧天书TAS推荐值得购买的电子器材(2016版) 美国发烧天书TAS发布“2017值得购买的高端音响器材”:功放类(前级、后级等) 美国发烧天书TAS发布“2017值得购买的高端音响器材” 【专题】《2017年发烧天书购买指南》电子类器材专辑 日本《立体声/Stereo Sound》杂志“2016-2017年度最值得购买音响器材”获奖全名单 【专题精选】美国发烧天书TAS“2017年度高端音响器材”推荐榜全名单 《音响论坛》杂志2017上半年器材龙虎榜入选产品全名单 【系列报道】器材搭配谁最强?推荐发烧音响展会上“最受好评的”开声系统 输入:XLR x 3,RCA x 3,USB (只供靭体升级) 输入阻抗:20 KΩ (XLR),10 KΩ (RCA) 输出:XLR x 2,RCA x 2 输出阻抗:< 50 Ω THD+N:<0.001%, 20 Hz – 20 kHz @ 2V out;<0.1%, 20 Hz – 20 kHz @ 10V out 频率响应:10 Hz – 100 KHz,±0.5 dB 讯噪比:> 105 dB, A-weighted 体积 (H x W x D):133 x 432 x 381 mm 重量:11.3 Kg PreAmp 1.0 前级 随著牛郎星2 Altair II到处女座2 Virgo II前级的诞生,群星荟萃在Hi-end音响领域的超然地位已获得广泛认同,环观揉合先进技术和校声艺术的PreAmp 1.0,就是把这个靓声传奇延续下去的最佳例证,线条简约的机身组件与底盘之间,採用双重支撑接合手法进行安装,缔造优越避震效果,清晰面板佈局设有大型显示屏,手工製作保持一贯精良的遥控器,亦以原件铝砖挖空製造。 PreAmp 1.0前级的音频放大线路,属于全平衡双单声道设计,专利高电平增益模组同样设有高速运作的伺服监察电路。线路板和底盘之间,选用一种非常柔软的特殊阻尼物质作为藕合素材,就连供电环节和音频线路板之间的接线亦保持悬浮状态,达至最佳避震效果。左右声道各自使用一枚R型供电变压器,电子开关线路则交由另一枚EI型供电变压器负责,铝合金隔离屏障,避免变压器引发互相干扰的机会。输出插座有齐RCA和XLR,无论配搭同系后级抑或有源扬声器,定可获得意想不到的效果。
T+A P3000HV前级功放
该产品入选: 2014/2015年度AVTech Media AWARDS获奖产品榜单 日本《立体声/Stereo Sound》杂志“2016-2017年度最值得购买音响器材”获奖全名单 《音响论坛》杂志2017上半年器材龙虎榜入选产品全名单 T+A旗下最高阶的HV系列,全面采用高电压工作的设计原理。根据原厂工程师的研究,让晶体机在如同真空管的高电压状态下工作,可以有效降低失真;因此,HV系列器材的工作电压都比其他家的器材为高。P3000HV前级采用左右声道分离的设计,而且分离的很彻底,连电源供应都完全是两套,由它需要两条电源线分别为左右声道供电,即可证明。不仅左右声道分离,而且内部线路都经过严谨设计,线路布局遵循最短传输路径的原则,并且避免彼此出现电气干扰。电路板都藏在大型的金属遮罩内,而这些铝合金遮罩的厚度更高达10-15mm,藉以降低电磁的影响。放大线路上所采用的JFET晶体都是经过人工配对挑选的,力求最少误差。线路为全分砌式,T+A坚决不用任何OP放大元件,改采谨慎的配对和挑选元件,做出完美的线路。而P3000HV也不使用整体负回授来降低失真率数值,因为T+A工程师所开发的线路本身已经让失真压到最低了。在操作功能方面,P3000HV具有品质优良的类比式EQ调整,能以调整左右声道平衡、高音、低音、响度,并可针对空间的声音特性做空间校正。校正需透过麦克风和电脑,经由官网下载的程式来进行校正。否则,您也可以透过聆听来进行微调。在对外连接方面,P3000HV的IN1到IN4是同时具有单端和平衡的输入,。RCA输入的IN6是普通的高电平输入,IN5则可选购安装唱头放大模组,该模组可支援MM和MC放大。前级输出则有平衡单端各一组。如果您有其他的T+A器材,还可使用H Link做连动控制。 器材规格型式:前级扩大机 输入:高电平输入- RCAx5、XLRx4;唱头放大输入- RCAx1;录音输入- RCAx1 输出:前级输出-RCAx1、XLRx1;录音输出-RCAx1;耳机输出-6.3mm x1 频率响应:0.5 Hz – 300 kHz 总谐波失真:< 0.001% 交越失真:< 0.001% 讯噪比:108 / 112 dB 声道分离度:>108dB 尺寸:170 x 460 x 460 mm 重量:28kg
Einstein Audio THE PREAMP前级放大器
该产品入选 【购买指南】日本《Stereo Sound》2014年度评选最值得购买Best Buy精品:前置放大器(5万元以上) 日本《立体声/Stereo Sound》杂志“2016-2017年度最值得购买音响器材”获奖全名单 信噪比: typ. 100 db 失真 @ 1 kHz: < 0.01% 输出电压: bal. 2.5 Volt to 100 Ohm 最大输入电压: 7 Volt 输出阻抗:50 Ohm 频宽:7 Hz - 400 kHz 分离度:> 98 db 胆型号:10支E88CC(输入),8支PCC88(输出) 重量:21 kg 尺寸 (高 x 宽 x 深):20 cm x 43 cm x 41 cm Having just reviewed Einstein's scandalously fabulous The Flash and The Thunder cables, it is now time to focus the attention onto their components.  Ah yes, those components.  I think it is a testament to Einstein's creative design force that the two most talked about components in casa Kaey are the Einstein system and the darTZeel integrated (the Brinkmann  LaGrange is part of that too, however, it is a given that at any moment it receives kudos anyway, as vinyl is now suddenly cool, again).   I can't really remember a time in recent memory when visitors appeared so enamored with the look of a component. Truly, Einstein's stuff isn't cookie-cutter, me-too; no, it is quite the opposite: distinctive, nay, luxurious, with build quality that has to be among the finest available.  Of course, building fancy components is one thing—most anyone with enough access to cash and manufacturing capabilities can do that—but it is really work designing classy components that look otherworldly and sound amazing.  Einstein has been doing this for the past 20 years.  Not a small feat by any stretch of the imagination.  Those of you who have followed Einstein over the years may recognize the component of this review, as in many ways it resembles The Tube preamp from year's past.  While the overall look is indeed very similar, Volker Bohlmeier (principal at Einstein) contends that really, "it is more of a total and complete redesign with significantly updated internal components and an all new machined aluminum chassis, said to be far more effective at vibration and resonance control." einstein the preamp Indeed, one can spend a fortnight looking at The Preamp, alas the technical specs of this component are no less ingenious.  First, it is in fact a fully balanced design from input to output, meaning that when you connect balanced cables, you truly have a fully balanced electrical system loop.  To combat the ever important issue of hum, The Preamp features a semi floating channel ground, whilst operating with two amplification stages: 1st stage differential amplifier, 2nd stage, output buffer.  The Preamp also features two rather unique topologies and technological feature sets. First, the volume control is shunt operated and outside the signal path. Second, perhaps even more interesting, the source selector is a tube filament switching device.  Now there's a killer.  Get it?  The source selector is also outside of the signal path, meaning that each input has its own compliment of tubes, as you switch from one to the next, each input stage is individually turned off and on.  This, to my knowledge, is a completely unique Einstein piece of engineering. As if it were necessary to mention, The Preamp is of course a dual mono design, featuring 10 JAN Philips NOS 6922 input tubes and 8 EI NOS PCC 88 output stage tubes.  Tubemeisters, eat your heart out!  Now, those tubes aren't merely chassis bolted, no, in typical Einstein fashion, the tubes are suspended by an elaborate vibration absorption mechanism designed to further enhance the sound quality of this component.  There are 5 sets of inputs, 2 for balanced mode, 3 dedicated to single ended inputs as well as 2 sets of outputs, for both balanced and single ended operation.  Technical specs aside—though I have no doubt that someone far more technically proficient than me could spend paragraph upon paragraph dissecting the details further—this is one hell-uv-ah preamp.  einstein the preamp Setup was a breeze, then again, what else would you expect from a preamp?  Using a pair of Einstein's balanced The Flash interconnects, The Preamp quickly made friends with its cousin, Einstein's The Light In The Dark Mk II hybrid amp.  This match, while perhaps most natural in appearance, was by no means a sign that The Preamp was only capable of working well within its own stable.  No, quite to the contrary, another terrific quality of this component is the fact that it plays nicely with most any other amplifier as well, though more on that later. So let us move to the nitty-gritty, otherwise known as what's this thing sound like part of the review.  If you didn't know that this preamp is tube based, you'd never guess it, guaranteed.  On both my ZU Audio Definition MK IV and Marten Djangos, there is absolutely no hum whatsoever.  Zero.  Dead quiet.  Seriously, it is quite eerie as normally you would expect at least some form of background noise to be present, especially so on the 101db efficient ZUs.  Alas, there's simply none.  In fact, when I first noticed this feature, I immediately thought to double-check the connections and state of power, as I simply could not believe my ears.  Fools, I say, fools! Given the implications of the technical specifications The Preamp features, it stands to reason that this preamp will be a) dead quiet, b) very dynamic and c) have vanishingly low distortions—if audible at all.  Having confirmed the first assumption in situ, it stood to reason that the others weren't all that far behind.  Much like the Einstein cables I mentioned earlier, it is quite astonishing how dynamically rich and expansive this preamp sounds.  Music—sourced through my reference Playback Design MPS-5 / USB-X digital front end and Brinkmann LaGrange/A90 analog rig—that I am all too familiar with, springs to life with such lifeforce that it is truly remarkable what Volker and team have been able to accomplish.  No matter the cut, notes appeared from dead silence progressing through attack, sustain and decay with speed and accuracy normally not associated with tube equipment, especially not a design that features a total of 18 tubes.  Cueing up one of my all time classical recording references, The Rite Of Spring with Gergiev and the Kirov orchestra on Philips (2001), the sound of this majestic piece was at once alive and incredibly vibrant.  The orchestra appeared to light up, with each movement and piece springing forth new revelations in dynamic realism and force.  Now mind you, I have heard this recording many a time, yet, in many ways, The Preamp opened up a seemingly new window of discovery in the dynamic subtleness by Gergiev and the Kirov orchestra. Electronica, a speed freak genre if ever there was one, is another highlight for The Preamp.  A cut from Yello's The Eye (2007), "Planet Dada," awoke new and old memories alike.  Blindingly fast cuts, electronic pulses, and pounding bass are all de rigueur for this track; yet, in so many ways, it was as though I heard far deeper into the mix, giving me that much more insight into the minds of Dieter Meier and Boris Blank.  As with Kirov's orchestra, Yello is all about timing and precision. Expertly produced and extremely well recorded and mastered, their music begs to be played on a system capable of producing both micro and macro dynamics and nuances with speed and clarity.  Sure, you will get the basic idea of what the recording is all about on most any system.  Play it on something capable of full frequency extension and dynamic range and you are in for a treat.  What is most fascinating about Einstein's The Preamp, is the fact that you have a main system component capable of extending and illuminating your music library all at once, giving you that extra bit of insight – audiophiles rejoice.  The other day Mr. Record, aka Robert Pincus, record maven and part time reissue producer (lately responsible for IMPEX records, previously Cisco Music's catalog) gave me a decent copy of Johnny Cash at San Quentin.  This resort recording whilst typical in somewhat of bland, generic live sound (it was recorded at the world famous San Quentin prison of course), managed to exalt virtues via The Preamp hereto forth unheard of.  On occasion, Cash's voice sounding somewhat muddled, muffled, and distant, Einstein's preamp at least managed to evoke some level of liveness and character from this original Columbia red label pressing.  While this recording would never be deemed "audiophile", The Preamp managed to make the most of it, by being positively additive to the sound.  Toes tapping, pants flapping and all, this recording has to be a truly a one of a kind artistic gem, made that much more appreciative through the Einstein preamp. But wait, there's more.  If Einstein's magic circuitry enhances dynamics and background quietness, then a follow-up result must also be greatly enhanced detail retrieval.  Quite simply, when the preamp gets out of the way, there's more music that comes through.  Turns out that this is de facto the case with The Preamp, for example, playing several cuts off Fleetwood Mac's Rumours revealed that much more low level information.  Previously obscured notes and details became that much more present as layers where unpeeled and revealed.  Bass lines were that much more cleanly delineated and outlined; the effect was overall similar to someone taking a flash to enhance the lighting of an image. You can see the same image with or without flash, but the image which has been properly lit and exposed will reveal that much more detail.  Switching to my pair of anniversary edition Quad II monos—connected via Einstein's The Flash RCA cables—produced pretty much the results I had expected.  Without question, one immediately heard the great qualities the Quad's made famous oh so long ago.  The razor sharp imaging and dynamics of before were replaced by the Quad's sonic signature. Rich, sonically lush with a wonderful midrange bloom, that is quite the value add for certain recordings.  Thus, The Preamp does exactly what a great preamp should do.  Stay out of the way and let the music flow upstream from your source to your speakers.  Fundamentally then, The Preamp is quite the German Wunderkind.  An interview I read sometime ago with Volker Bohlmeier outlined his vision for Einstein. Paraphrasing, his main goals are essentially to recreate the dynamic realism of live music as closely as possible in a home environment.  I'd say that he has done just that.  No matter what musical preference you have, The Preamp will certainly make your music library shine in new light.  Proper source and all—read: the better the source, the more will come through, this component is quite unlike any other tube preamp you will hear.  Bold, dynamic, with umpteen levels of resolution in between, music simply sounds that much more engaging.  While an all Einstein system isn't prescribed nor necessary, this preamp can bring about a whole new level of realism when used with other Einstein components.  I think Volker and company are on to something.  Highest recommendation, A+++.  Danny Kaey
新派NuPrime AMG PRA前级扩大机
PRA 面板左右两侧各有一颗旋钮,右边的是音量调整,左边的却不是讯源选择,那是什么?是 PRA 非常独特的「Active Low Frequency and Harmonic Gain」功能。这一长串英文的意思是「用主动方式替低频与谐波进行增益」。当此旋钮左转到底是不启用增益,往右转一格是在 125 Hz 增加 2.2 dB,右转两格是在 100 Hz 增加 4.5 dB,右转三格是在 75 Hz 增加 5.3 dB,藉此让书架喇叭的用家可针对特定低频频段做增益,让声音听起来更饱满,以弥补某些书架喇叭低频较为贫弱的缺陷。或许你会质疑说这不就是早期许多综合扩大机所使用的 Loudness 响度调整功能,对音质有不良影响吧?做法不同。PRA 是藉由调整谐波成分来增强低频,而非透过元件或电路增益来增加响度,因此滚降更自然。 PRA 的输入级採用具有 1 M 超高频宽的低噪讯 JFET,建构成单端纯 A 类架构,并特别挑选了著名的日系 MUSES8920 双 OP 做为放大元件,据 NuPrime 原厂网站表示,会运用这颗 OP 的目的是为了赋予 PRA「如管机般的和谐音色」,使其具有「温暖、柔软、光滑」的特质。MUSES8920并不便宜,PRA 每声道各用一颗,用料可不手软。 PRA 面板上还有两个摇头切换开关,其中一个是增益控制,可切换低增益(2.1 dB)与高增益(3.2 dB),另一个是相位切换,让使用者可针对器材搭配、录音、聆听的音乐类型自行切换,以增加 PRA 的兼容性。这些功能通常要在中高阶前级身上才看得到,但 PRA 一次给足。不仅如此,PRA 的输入与输出都具备了 RCA 与 XLR 介面(输入有 3 组 RCA 和 1 组 XLR,输出是 RCA 与 XLR 各一),让 PRA 有最大的弹性连接不同的前后端器材。 型式:前级扩大机 频率响应:10 Hz ~ 200 kHz(±0 ~ -0.1dB) 输入:XLR × 1,RCA × 3 输出:XLR × 1,RCA × 1 总谐波失真:0.008 % 讯噪比:95 dB 输入阻抗: XLR / 1M Ohm @ 10 Hz ~ 200kHz RCA / 1M Ohm @ 10 Hz ~ 200kHz 输出电压:2 V(RCA)/ 4V(XLR)@ 100 Ohm
音乐传真Musical Fidelity M8系列 M8 PRE 全平衡前级放大器
该产品入选下列获奖项目: 《音响论坛》杂志2017上半年器材龙虎榜入选产品全名单 产品介绍: M8 PRE前级是一台全功能的、由始至终都是全平衡设计的前级,提供了全面的输入接口,包括低噪音MM/MC唱头、两个平衡输入(一个家庭影院旁路选项)、三个RCA投入(一个家庭影院旁路选项)等。M8 PRE每个声道都有一只350VA、低噪声电源变压器,输出电路是纯A类电路设计,属于典型高输入的阻抗再加上低输出阻抗的前级,这一设计虽然能与其他不同器材互相搭配时,匹配性会更好,可是一不小心就会引入更多的杂讯,我们再看看它少于0.003%的失真率,大于118dB的信噪比,5Hz-100kHz的超广频宽,使用这种设计,能达到如此指标的确让人大吃一惊。 Pre-Amplifier THD(+ noise) - single ended: <0.005% THD(+ noise) - XLR Balanced: <0.004% Signal to Noise Ratio: >118dB ‘A’-weighted Frequency Response: +0, –1dB, 5Hz to 100 kHz Inputs 1x Switchable MM/MC RCA / Phono 2x XLR Balanced Line Level 5x RCA / Phono Line Level General Dimensions - WxHxD (mm): 440 x 162 x 400 Weight (unpacked / packed): 17 kg / 23 kg The M8PRE is a Pre Amplifier without limits. Overview The M8 is a pre-amplifier without limits. From its performance to its connectivity, via quality fit and finish, the M8 makes a superlative centrepiece for almost any system. The M8 boasts a wide array of inputs, meeting the needs of traditional and modern home entertainment systems. It offers a low-noise MM/MC phono stage; two balanced inputs (one with home theatre bypass option); three line inputs (one with home theatre bypass option) and a fully configured tape in/out loop. Its outputs are single-ended and balanced, and there is also a trigger control. Technical measurements are testament to the M8's exceptional engineering: from ultra-low distortion to virtually perfect frequency response, the science supports what your ears will also clearly hear. We're so confident of the M8's capabilities that we state it will drive any power amplifier over any length of cable. Though obviously its perfect partner is the matching M8-700 monobloc pairing... Design and Build The first exceptional element of the M8 pre-amplifier is its truly fully balanced design. Most rival pre-amps making similar claims are actually single-ended models with a balanced input and output; this is not the same as being fully balanced throughout, which the M8 offers. The quality continues with the M8 pre-amplifier's pure Class A circuitry, implemented in subtle and refined configurations. The M8 is designed with very high input overload margins. High input impedance plus low output impedance puts the M8 in the position of itself being easy to drive, while having the capability to drive any power amp. Let's run through those input options in more detail. The phono stage is a low-noise MM/MC design, with very accurate RIAA, low distortion and wide overload margin – all making the M8 a great turntable partner. Two fully balanced inputs, three line-level inputs and a fully configured tape loop (input and output) provide plenty of flexibility for further sources, both traditional and modern. Home theatre bypass options are available on one set of both balanced and line-level inputs, making it easy to integrate the M8 into a one-stop music and movie system. The M8's high-tech design translates into an exceptional performance that can be scientifically measured. Technical analysis shows the M8 has miniscule distortion levels  (less than 0.003%), extremely low noise (-117dbA), wide bandwidth (-3dB 75kHz) and remarkable frequency response – ruler-flat within the audio band. Stereo separation is 96dB at 1KHz. Finally, the M8 pre-amp also features an exceptional power supply. Each channel has a 350VA, silent-drive mains transformer, with each stage of each channel featuring its own regulation circuitry for optimised performance and isolation. Current delivery is maximised due to the power supply's ultra-low impedance design.
柏斯Pass Labs XP-20前级放大器
该产品入选下列获奖项目: 2016年美国发烧天书编辑选择奖:“前级功放”获奖产品专题(上) 【专题】美国发烧天书最新发布“2017年金耳朵奖”获奖器材全名单 《音响论坛》杂志2017上半年器材龙虎榜入选产品全名单 失真率: 0.001% 频率响应:-3 dB @ 2Hz, -3 dB @ 60kHz 输入阻抗:48k (单端),48k (平衡) 耗电量: 25 watts  尺寸cm: 10(H)x43.2(W)x30.5(D)  重量: 24.75 KG  XP系列以受到高到赞赏的X系列为蓝本,加入一系列的崭新科技,研究而成。XP前级放大器系列比过往的产品的更能令您感受真实的现场感。高音动态的部分中还渗透更多的力量;低音部分更清楚、利落,更能准确无误的演绎出来。即使在高度复杂的音乐段落中,精细的细小差别和细节都来一一演奏出来! 简而言之,根据过往的经验,Pass Labs将最好的都一一集于XP前级放大器系列。