Related Manuals for MC2 Audio ULTRAFIDE AUDIO U4PRE
Summary of Contents for MC2 Audio ULTRAFIDE AUDIO U4PRE
- Page 1 U4PRE Quad Output Audiophile Pre-Amplifi er. Operator’s Manual www.ultrafi deaudio.co.uk...
- Page 2 Thank you for choosing an ULTRAFIDE/MC² product for your application, it really is appreciated. Please spend a little time reading through this manual, so that you obtain the best possible performance from the unit and become familiar with its operating requirements.
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Page 3: Table Of Contents
Contents Declaration of Conformity ....................4 Introduction ........................5 Safety Instructions ......................6 Installing your Pre-amp: Considerations and Guide ............. 7 Set Up Tips and AC Mains Power .................. 8 Connectors ........................9 Cable Types Required ....................10 Features: Phono Amplifier .................... 11 Other Core Features ...................... -
Page 4: Declaration Of Conformity
DECLARATION OF CONFORMITY We, the manufacturer: XTA Electronics Ltd (TRADING AS MC Audio, Ultrafide) Units 6-7 Kingsgate Heathpark Industrial Estate Honiton, Devon England EX14 1YG acknowledge our responsibility and self-certify the following products: Kind of equipment: Audio amplifier Commodity Code: 8518400090 U4PRE Type Designation:... -
Page 5: Introduction
Drawing upon decades of expertise For future, there is a 9 pin d-sub carrying from the team at MC2 Audio, the U4PRE DC power and balanced audio for future achieves ultra-low noise levels - boasting expansion products, meaning no power is a meticulously crafted signal path design required for additional components. -
Page 6: Safety Instructions
Safety IMPORTANT SAFETY INSTRUCTIONS WARNING: Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing connection. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. -
Page 7: Installing Your Pre-Amp: Considerations And Guide
Installing: Considerations and Guides Mechanical Considerations Audio input connections are available at the rear of the preamplifier through two pairs of XLR connectors, three pairs of RCA For optimal performance, the Ultrafide U4PRE connectors, and the expansion port in the should be positioned horizontally on a stable future. -
Page 8: Set Up Tips And Ac Mains Power
Connection Set Up Tips All audio system equipment should be AC Mains Power positioned reasonably close together if The U4PRE is designed to operate on either possible so that wire lengths can be kept 230V nominal or 115V nominal, 50 - 60Hz short. -
Page 9: Connectors
Connectors Remote Standby Connectors Mixed XLR and RCA Connectors Mini Jack cables are used for remote power Unbalanced RCA sources can be connected up/down control of other equipment in the to the balanced XLR inputs and vice versa, system, and you should use the tip and outer while retaining some benefit from the hum ring for connectivity. -
Page 10: Cable Types Required
Cable Types Required IEC C13 Mains connector and cable should All RCA-to-XLR connections should use be high quality 6A rated with three cores, high quality cable with dual, twisted central including a ground connection which conductors for the signal and ground must not be disconnected under any reference plus a braided outer conductor circumstances. -
Page 11: Features: Phono Amplifier
Features: Phono Amplifier The RCA phonograph inputs have adjustable We recommend having all available capaci- impedances and gain settings that change tance in circuit (dip switches up) when using Moving Coil cartridges, as this provides some the operation of the pre-amplifier suitable useful passive filtering of the incoming sig- for either moving magnet or moving coil nals, removing unwanted RFI. -
Page 12: Other Core Features
Other Core Features RCA Inputs Additionally, a single press of the right encoder mutes or unmutes the audio. A long The RCA inputs are unbalanced with an press on the left-hand control will access a impedance to ground of 47K in parallel with balance control which is adjustable in 0.5dB 100pF. -
Page 13: Calibration And Software Operation
Calibration and Software Operation Gain and Frequency Calibration Internal Mains Calibration | Software and Remote Operation The U4PRE is designed to operate at domestic signal levels (2.19v) which are It is possible to use the U4PRE for use with suitable for driving any Hi-Fi amplifi er or nominal 230V or nominal 115V mains and recording/playback mediums. -
Page 14: Warranty Information
Other Operation and Maintenance Remote Control Operation Cleaning should be done using a light duster or in more severe cases of dirt build up use a damp (not wet) cloth. It is essential this is done while the system is powered down / disconnected from the mains supply. -
Page 15: Technical Specifications
Technical Specifications Audio Channels (quantity) Left and Right Audio Inputs 6 RCA (Single Ended) 4 XLR (Balanced) Input Impedance RCA Input Impedance XLR Input RFI Filtering Capacitance RCA 100pF XLR 500pF Additional Phono Loads (adjustable) 7 steps 80R/500R 7 steps 150pF/470pF Audio Outputs 4 RCA (Single Ended) 4 XLR (Balanced) -
Page 16: Phono Stage Configuration
Phono Stage Configuration Load Z 100pF/47K All DOWN (common MM setting) All DOWN (common MM setting) All DOWN (common MM setting) All DOWN (common MM setting) 150pF 200pF 250pF 320pF 370pF 420pF 470pF 510R 300R 190R 150R 120R 100R RED CAP SETTINGS ARE TO PROVIDE RFI FILTERING AND DO NOT EFFECT AUDIO FREQUENCIES... - Page 17 Phono Stage Configuration Added Gain (Gain offset in menu Cartridge sensitivity RESULT (adding the default Note configuration) +35dB hardware gain) 5.00mV +35dB Typical moving magnet gain 4.46mV +36dB Typical moving magnet gain 3.97mV +37dB Typical moving magnet gain 3.54mV +38dB Typical moving magnet gain 3.15mV +39dB...
- Page 18 Notes...
- Page 19 Notes...
- Page 20 XTA Electronics Ltd Trading as MC² Audio & Ultrafide Units 6-7 Kingsgate Heathpark Industrial Estate, Honiton, Devon United Kingdom. EX14 1YG Tel: +44(0)1404 44633 Email: hello@ultrafideaudio.co.uk www.ultrafideaudio.co.uk...
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