WEISS MEDUS Скачать руководство пользователя страница 25 | Manualshive

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WEISS MEDUS Скачать руководство пользователя страница 25

OWNERS MANUAL FOR WEISS MEDUS D/A CONVERTER

CONTACT

For any questions, suggestions etc. feel free to contact us at:

Weiss Engineering Ltd.

Florastrasse 42

8610 Uster

Switzerland

Phone:

+41 44 940 20 06

Fax:

+41 44 940 22 14

Email:

[email protected]

Web:

http://www.weiss-highend.com

http://www.weiss.ch

http://www.asiaweiss.com

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Содержание MEDUS

Страница 1: ...Weiss Engineering Ltd Switzerland www weiss highend com MEDUS OWNERS MANUAL...

Страница 2: ...nd development process Research was conducted both in analog and digital circuit design as well as in signal processing algorithm specification On the following pages I will introduce you to our views...

Страница 3: ...ineering 16 Our mission and product philosophy 17 Advanced digital and analog audio concepts explained 17 Jitter Suppression Clocking 19 Up sampling Oversampling and Sampling Rate Conversion in Genera...

Страница 4: ...f 88 2kHz and higher can also be fed using the dual wire scheme i e one cable per channel Up sampling Signals at 44 1 or 48 kHz are up sampled in the MEDUS DSP chip using our own studio quality up sam...

Страница 5: ...any time The outputs are symmetrical on XLR connectors and asymmetrical on RCA connectors No sound degrading servo mechanisms are used The Weiss OP1 BP discrete OP AMP Power Supply A powerful non swi...

Страница 6: ...ized aluminium for additional shielding resulting in optimal heat convection and beautiful looks Front panel controls Four switches with corresponding blue LEDs are used for selecting one out of four...

Страница 7: ...sure the voltage selector switch on the back of the unit integrated into the mains connector is set to the appropriate voltage If this is not the case then open the mains selector lid with a strong s...

Страница 8: ...1 left and Input 2 right can act as an input for sources supporting the two wire scheme i e one cable per channel The MEDUS automatically detects whenever such a source is connected to inputs 1 and 2...

Страница 9: ...erred input level If you use the remote control to change the basic output level press and hold the ALT key and then press the gain trim or keys to adjust the level The display shows the maximum outpu...

Страница 10: ...in the digital domain with 0 5dB steps over a range of 60dB With the 0dB setting maximum level the volume control is bit transparent output mute up sampling filter A B selection absolute polarity 0 1...

Страница 11: ...mpling rate unlocked 44 1 48 88 2 96 176 4 192 kHz DSD input word length 16 20 24 Bit shown if an audio signal is present gain 0 60dB in 0 5dB steps shown inverse if mute is activated absolute polarit...

Страница 12: ...Sampling Frequencies dual wire scheme 88 2 96 0 176 4 or 192kHz on inputs 1 and 2 DSD On USB input Sampling frequency tolerance 80ppm Maximum input word length 24 Bits Analog Outputs 2 XLR Connectors...

Страница 13: ...nchronized via input signal Extremely efficient Jitter attenuation down to subsonic frequencies Sampling Frequencies 44 1 kHz 48 0 kHz 88 2kHz 96 0kHz 176 4khz 192kHz DSP algorithms Up sampling jitter...

Страница 14: ...z within 0 75dB fs 96 0kHz 0Hz 30kHz within 0 75dB fs 176 4kHz 0Hz 40kHz within 0 75dB fs 192 0kHz 0Hz 40kHz within 0 75dB Total Harmonic Distortion plus Noise THD N ratio 1kHz 112 dB 3 dBFS input 0dB...

Страница 15: ...it Series was launched taking ergonomics and sonic quality to new heights The Gambit Series consists of stand alone units like Equalizer De noiser De clicker Dynamics Processor A D converter D A conve...

Страница 16: ...uction of one of the first digital dynamics processors 1991 Introduction of the Ibis digital mixing console built for the mix down of classical music 1993 Introduction of the Gambit Series of digital...

Страница 17: ...y fluctuations temperature etc Hence a jittery clock introduces errors to the measurements taken by the A D resulting from measurements being taken at the wrong time One can easily observe that the le...

Страница 18: ...les between the source e g CD player and the D A converter unit or by the same mechanisms as described above except for the motors of course In the case of a stand alone D A converter as the MEDUS one...

Страница 19: ...any difference in sonic quality Of course it is always a good idea to have a good quality cable for digital or analog audio transmission but within reason Upsampling Oversampling and Sampling Rate Co...

Страница 20: ...lked about the so called anti aliasing filter which filters the audio signal ahead of the A D conversion process For the D A conversion which is of more interest to the High End Hi Fi enthusiast essen...

Страница 21: ...ight i e 44 1kHz ends up at 352 8kHz Such a high sampling frequency relaxes the job of the reconstruction filter very much it can be built with a simple 3rd order filter So how come that up samplers a...

Страница 22: ...loys class A output stages with a very low output impedance Class A inherently guarantees very low distortion figures even when operating the amplifier in open loop i e without feedback The feedback i...

Страница 23: ...signal does not show any distortion components but a slightly increased noise floor This works like magic the distortion is replaced by a small noise much more pleasant I have given the example of a...

Страница 24: ...f audio engineering have been useful for you If you would like to dive further into those issues I recommend to visit the website of Mr Bob Katz a renowned Mastering Engineer and a Weiss Engineering c...

Страница 25: ...r any questions suggestions etc feel free to contact us at Weiss Engineering Ltd Florastrasse 42 8610 Uster Switzerland Phone 41 44 940 20 06 Fax 41 44 940 22 14 Email weiss weiss ch Web http www weis...

Страница 26: ...US The sampling rate is set via the Weiss Firewire IO window On a Mac system the sampling rate set in AudioMidi sets the one in the Weiss Firewire IO window and vice versa With the proper advanced pla...

Страница 27: ...ector is plugged in reversed the MEDUS Firewire interface can be destroyed because of the bus power on the Firewire bus The MEDUS should now be recognized by the computer i e if you start the Weiss Fi...

Страница 28: ...he player software is indeed bit transparent If the LED stays lit the player is not bit transparent For the dual wire version select input 1 independent of the sampling rate you are testing at and wai...

Страница 29: ...ation procedure before connecting the MEDUS to the computer The necessary files are supplied on the enclosed drivers CD Windows 0 Do not connect the device 1 Double click WeissFirewireInstaller exe 2...

Страница 30: ...installation window that you do not want to check the Microsoft website for drivers and then let the drivers be installed automatically Ignore warnings concerning Windows Logo Test and continue the i...

Страница 31: ...are clicks in the music Global Settings WDM Enables the WDM driver Global Settings DPC Determines your computers performance and recommends a operation mode Global Settings System Some utilities to de...

Страница 32: ...Ss are connected Sync Source The clock to which the MEDUS should sync to Usually this is the MEDUS internal clock generator Sampling Rate The sampling rate of the device when internally clocked Operat...

Страница 33: ...nnection The ST input can be used with the corresponding ST output of the JASON CD Transport or with any other source which sports a ST output Also possible is to use the Weiss CHIRON glass1T module t...

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