Author Topic: Phasemation EA500 phono stage @ X Audio  (Read 82 times)

Offline Xaudio

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Phasemation EA500 phono stage @ X Audio
« on: September 12, 2019, 14:54 »
5th shipment of Phasemation EA500 dual mono MM/MC phono pre amp has arrived @ X Audio



Main feature

I. Strong chassis structure consisting of two monaural-block units separated to L/R
The amplifier consisting of the shaved 12mm thick aluminum front panel, 2mm thick copper plating steel chassis base and a 2mm thick aluminum cover has the strong chassis structure; it gives an assured stiffness and reduced magnetostriction.

Furthermore, the sections of equalizers and power supplies of an amplifier separated into L/R support the playback sound by which you can enjoy music expressing the overwhelming liveliness and re-creation of a panoramic stage because of the high resolution and high S/N ratio.

II. The newly designed amplifier circuits featuring V-I/I-V conversion and non-feedback for all stages where all components are discrete
The negative feedback amplifier which holds the popularity of the present amplifiers made of semiconductors or vacuum tubes always compares the input and output signals and this difference (correction signal) is amplified as an input signal; thereby, it can realize high precision amplification at a low cost.

However there is a delay time in principle that cannot be cancelled between the input and output signals and this delay makes it generate a TIM distortion; therefore, this is one of the big reasons why the satisfaction from the audio quality of negative feedback amplifiers cannot be received.

All amplifiers of Phasemation are composed of non-feedback amplifiers made of semiconductors or vacuum tubes.

There is no correction operation like the negative feedback amplifier in the non-feedback amplifier; however, high precision and high technology are required on the components and circuits for being composed.

As a result, the information of the audio sources (records) can be played 100% without dropping it; so the music essentiality can be played because music expressions of an uplifting-feeling, dynamics, shading and so forth are excellent.

In this equipment, the newly designed amplifier featuring the V-I/I-V conversion and non-feedback for all stages, which is composed of carefully-selected discrete components, converts the input signal to the current, performs the equalizing operation to the signal, returns it to the voltage signal, and then outputs it through the cross-multiplying-buffer.

IIIļ¼ŽAdopting a Variety of Input-Switching Functions
Three lines MC1, MC2, and MM are installed and in addition to RCA terminals, balanced input terminals of the XLR connector are installed for MC1 and MC2.

The MC balance transmission has been supported for inputting the MC signal by incorporating the step-up transformer of special divided-winding structure, which is newly designed in this development to be required for MC balance transmission.

IV. Powerful Capabilities
Mounting a non-feedback type low cut filter of CR2 steps

A bent record disc can be played without audio quality degradation and speaker (woofer) shaking can be prevented.

Adopting the switch for selecting from among three playback curves

In addition to the RIAA characteristics for the stereo system, Mono 1 to be used in the DECCA label and so forth and Mono 2 to be used in the Colombia label are installed for the monaural characteristics.

Music can be played truthfully furthermore than the DECCA label and Colombia label.


Listed Price - $8,500

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