ROGER MAYER 456 Скачать руководство пользователя страница 7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

TECHNICAL SPECIFICATION 

 
The audio signal path is completely Class A with a very high bandwidth. The -3dB 
point has been set to above 100Khz. The low end extends to below 10Hz. 
Peaks are accurately high speed manipulated with ease and maintain the original 
phase position in the waveform. This fact can be observed using the latest high speed 
storage oscilloscope technology. 
 
This is a completely discrete analogue design hand built using only selected low noise 
transistors, low noise metal film 1% resistors, plastic film capacitors from the World’s 
top manufacturers all combined in a design to provide ultimate studio quality audio. 
Gold Plated Neutrik XLR connectors are used, LED Status Indication and Custom 
Conductive Plastic 22 way Stepped Potentiometers manufactured for best tracking 
accuracy. 
 
A 6 layer multi layer PC Card provides full shielding for all circuit traces with the 
Ground and Power Planes all contributing to outstanding high frequency phase 
performance and stability. The enclosure manufactured from stainless steel completes 
the 3 faraday cage triple shielding design necessary in today’s RF congested 
environment. 
 
The 48V DC input power is further regulated and filtered onboard to provide virtual 
battery
 performance and the lowest possible noise under all conditions. 
 

 

Microphone Input Sensitivity:

 -75dBV to -10dBV 

 

Line Input Level: 

N4dBu Balanced  

 

Line Input Impedance:

 

10K 

 

Operating Output Level:

 N4dBu Balanced 

 

Output Level Noise (LINE):

 

-118dBu 

 

Output Impedance:

 100ohms Balanced 

 

Output Load Impedance:

 10K or greater 

 

456HD® Dynamic Range

:

 96dB 

 

Headroom:

 Maximum Line Input level +35dBm – Internal Headroom 25dB 

 

Size:

 Standard 2U Rack Size – 483 x 90 x 250mm (19 x 3.5. x 10in). 

 

Weight:

 

4.0Kg 

 

Power Requirements:

 +48V DC regulated  

Universal World AC / DC Switching Adaptor Supplied 
 
 

www.roger-mayer.co.uk 

 

 

Содержание 456

Страница 1: ...development history in 1968 whilst I was working in Olympic Studios London The development continued with my move to New York and the formation of Roger Mayer Electronics Inc with designs of Recording Studio Desks RM58 Limiters RM 68 Noise Gates Mastering Equalisers and Location Recorders all using evolutions of our design These products were supplied to many top Studios in the USA and Europe The ...

Страница 2: ...eficial if you are using the ICs for instrumentation and scientific applications This input stage configuration however does not produce the optimum audio performance for ultimate audio quality ICs were much cheaper than the discrete equivalent circuit and were used in commercial consumer products with the marketing people using their skill to manipulate public perception of this new technology mu...

Страница 3: ...n and safety can be obtained in the most demanding situations with no chance of destroying your microphone pre amp by plugging a microphone in Phantom Powering can be left on as traditionally always was done without damage to the microphones whether they are Ribbon Dynamic or Condenser Just make sure your microphone cables are correctly wired and of the highest quality The modern myths about turni...

Страница 4: ...ed with a screwdriver through a small hole in the front panel to activate a 22 Turn Preset Potentiometer The sensitivity can then be set to your preferred operational set up standards Factory default setting is 0VU 4dBu DUAL VU METER MODES They can be accessed on the PC Card and set by moving a Jumper Mode 1 This is the factory default setting with the VU Meter monitoring the Pre Amplifier Output ...

Страница 5: ... the 456HD Process to hear the difference and then hear the changes as you increase the VU READING just like when recording with tape as the record level progressively saturates the tape LINE INPUT RECORDING OPERATION The Line Input function uses a separate transformer and XLR Connector and when the Line Switch is pressed in this input is selected and the OUTPUT control sets the level required Up ...

Страница 6: ...ll effectively improve the dynamics both when using it as a pre recording analogue processor before a conventional DAW and also in post playback from the DAW Live recording or tracking using multiple instances of the 456HD are very beneficial for Drum Vocal and Instruments and in many instances obviate the need for further limiting to control input levels What the 456HD Process brings to the table...

Страница 7: ...multi layer PC Card provides full shielding for all circuit traces with the Ground and Power Planes all contributing to outstanding high frequency phase performance and stability The enclosure manufactured from stainless steel completes the 3 faraday cage triple shielding design necessary in today s RF congested environment The 48V DC input power is further regulated and filtered onboard to provid...

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