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日本Phasemation(协同电子) EA-1000 旗舰级分体电源真空管式MC/MM唱头放大器

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经典日本黑胶唱放再重出江湖 - Phasemation EA-1000

 

一向对黑胶音乐超级发烧的铃木信行先生,早于十年前,在其协同电子珠式会社属下的家用音响事务部,开设以 Phasemation 品牌,并研发不少跟黑胶碟有关的制品。最为人触目可说是 EA-1 II 真空管式唱放!超凡的金工处理、全人手焊接以及超凡的屏蔽技艺等....都使它成为世上极具代表性的唱头放大器之一。但因为生产成本太高,厂方迫于无奈下于两年前停产!

 

两年来,不少日本国内或国外黑胶迷纷纷要求 EA-1 II 重产,铃木信行先生为满足黑胶迷的渴求,及延续 EA-1 II 高评唱放的领导地位,Phasemation 终于开发出新代替品,取名为 EA-1000 的真空管式MC/MM唱头放大器!

 

Phasemation 设计师明白到,好的唱放对极微弱讯号被干扰的影响性,与及需较大程度的放大值,而引致所需严谨分隔要求的重要。将 EA-1000 整份放大电路分开成 3 个独立箱体装置,分别为左和右声道各自独立箱体,和一个独立电源供电箱体,确保拥有最完全的声音分隔度及排除电源供电带来的干扰影响。EA-1000 同时预留升级方法,用家可购置多一个电源供电器,实现左、右声道完全独立供电之极致玩法!

 

EA-1000 内部线路设计是采用顶级 T-1 升压牛作初级增益,然后再以每声道 2 12AX7 1 12AU7 真空管分别作为 RIAA 曲线电路放大,还有 1 5U4G 真空管作为供电整流用。

 

EA-1000 设有平衡电路,因此备有一组 XLR 平衡及 两组 RCA 非平衡 MC 输入;一组 RCA 非平衡 MM 输入选择;与及 RCA / XLR 各一组输出,照顾不同用家的需要。EA-1000 设有 0.09mV / 10Ω以下 (Low) 0.22mV / 10Ω以上 (High) 的唱头输入切换增益选择掣,适合市场上大部份唱头使用。声音的表现、分隔度和细致表现绝对是一听难忘超班之作 !

 

 

 

 

主要特点 Main Feature

 

I. Phono Equalizer consisting of two Monoblock units

The Phono Equalizer unit consists of the shaved 12mm thick aluminum front panel, 2mm thick copper plating steel chassis base and 2mm thick aluminum cover; so, it has the strong chassis.

 

The equalizer units separated into L/R and the separated powerful power supply unit support the playback sound by which you can enjoy music expressing the overwhelming liveliness and recreation of vistaed stage because of the high resolution and high S/N ratio.

 

 

II. Separated Power supply unit adopting the Large capacity R-core Transformer and Directly-heated Rectifier Tube

The luxurious rectifier circuit consisting of the R-core transformer having more capacity than necessary and the rectifier tube not generating a switching noise principally, 5U4G and two choke transformers separated to L/R is adopted.

 

In addition, the high S/N ratio is achieved by adopting the DC heater circuit using a 3-terminal regulator for the tube heater power supply.

 

 

III. Adopting a variety of input-switching functions

 

1. Three lines, MC1, MC2 and MM, are installed; and in addition to RCA terminals, the balanced input terminals of XLR connector are installed for MC1.

 

2. The new step up voltage transformer originally produced by our company is incorporated for the MC input line and the input impedance switch (LOW: 10 ohm or less, HIGH: 10 ohm or more) is installed.

 

 

IV. Non-feedback Equalizer consisting of Tube Unit Amplifiers

1. The non-feedback SRPP amplifier circuit which excels in transient characteristics and has a reputation for sound quality is adopted as a unit amplifier. You can enjoy charming vigorous sound quality because a tube amplifier has wide dynamic range.

 

2. CR equalizer circuit is adopted.
In addition to the RIAA characteristics for stereo system, the monaural characteristics, Mono-1 using in DECCA label, Mono-2 using in Columbia label, and SP characteristics are installed. Even in the monaural playback, music can be played truthfully furthermore.

 

 

V. Texture Securement

WDT I/O terminals evaluated as high product quality and high sound quality are adopted. The shaved 12mm thick aluminum front panel and the 2mm thick top cover are galvanized to champagne gold color and the shaved brass operation buttons are decorated with 24-carat gold; therefore, the dignity finish having high universality will not disappoint you on the owner's joy.

 

 

获得奖项 Received Prizes

  • Grand Prix 2012 Grand Prix Prize

  • BEST BUY COMPONENTS 2012-13 Phono Equalizer Amplifier 1st Prize

  • BEST BUY COMPONENTS 2013-14 Phono Equalizer Amplifier 2nd Prize

  • Audio Excellence Award 2013 Bronze Prize

  • analog Grand Prix 2013 Award

  • 2012 MJ Technology of the Year Analog Components Excellent award

 

 


 

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技术参数

Product

MM/MC CR type Phono Amplifier

Input type (Cartridge)

MM

MC

Input sensitivity

2.3 mV

Low: 0.09 mV/High:0.22 mV

Output impedance for the cartridge

47k ohm or less

Low:10 ohm or less/
High:10 ohm or more

Gain

39 dB

Low: 67 dB/High: 59 dB

S/N ratio for input

-120 dBV

-150 dBV

Maximum permissible input

250 mV

11mV

Rated output voltage

200 mV (1 kHz)

RIAA curve deviation

±0.3 dB (20 Hz to 20 kHz)

Output impedance

750 ohm

Channel separation

100 dB or more (20 Hz to 20 kHz: Both of MM and MC)

Power consumption

40W (115 or 220 VAC, 50/60 Hz)

Dimensions (mm)

Phono Equalizer Units: 210(w) × 103(h) × 347(d)
Power Supply Unit: 210(w) ×103(h) × 333(d)

Mass

Phono Equalizer Units: 4.5 kg a channel
Power unit: 7 kg