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Related Manuals for Violectric PPA V600
Summary of Contents for Violectric PPA V600
- Page 1 PHONO PRE-AMPLIFIER PPA V600 USER´s MANUAL...
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Page 2: Table Of Contents
Content Theme Page About Violectric Safety Instructions The Earth / Grounding Concept Connection / Connectors General Operation Input Impedances Input Capacities Setting the Equalizer Opening the Case / Dismantling Things to know Disposal Technical Data Jumper Setting Conformity Statement Warranty... -
Page 3: About Violectric
Cordial thanks for your decision in favour of a product ! is a trademark and product line of Lake People electronic GmbH. Lake People electronic GmbH develops, manufactures and distributes products in the professional range, for broadcast, television, airports, exhibition halls, festival venues, theatres, large-scale installations, private studios and more. - Page 4 's and Lake People's full technical support even when warranty has expired. Any technical questions or need for advice is welcome. is a subsidiary of LAKE PEOPLE electronic GmbH Turmstrasse 7a D-78467 Konstanz Fon +49 (0) 7531 73678 Fax +49 (0) 7531 74998 www.violectric.de www.violectric.com www.lake-people.de www.lake-people.com...
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Page 5: Safety Instructions
General Safety Instructions WARNING For your protection, please read the following: Water, Liquids, Moisture: This appliance should not be used near water or other sources of liquids. Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. -
Page 6: Mains Fuse
Mains Fuse: The mains fuse of this appliance is soldered in place and accessible from the inside only!! A blown fuse may indicate an internal problem and should be replaced during qualified servicing or repair work !! Power Supply: Connect this unit to the power source indicated on the equipment rear panel only to ensure safe operation !! This unit is provided with a multi-mode switch-mode supply and accepts mains voltages from 90 …... -
Page 7: The Earth / Grounding Concept
The Earth / Grounding Concept General GROUND-LIFT Jumper (accessible from the inside. Mind the SECURITY INSTRUCTIONS !! ): Ex-works this jumper is set to the LIFT position. The internal ground potential is “lifted” by means of this jumper. As a result, the interconnection for DC voltages and lower frequencies (<... - Page 8 Unfortunately there is no general recommendation how to solve hum and jitter problems - or even minimize them. The best way to succeed is to check different options !! In case of balanced cables, it should always been verified if the shield of the cable is connected to the shell of the XLR connector.
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Page 9: Connection / Connectors
Connection / Connectors for analog signals... -
Page 10: General
GENERAL INFORMATION The PPA V600 is a high-quality, two-channel preamplifier for moving- coil and moving-magnet pickup systems. Its groundbreaking design allows a variety of setting possibilities second to none. Due to the implementation of professional instrumentation amplifiers in the input section, it offers extraordinarily low noise figures and extreme bandwidth even at high gain. - Page 11 THE CASE The PPA V600's case as well as the front/rear panels are made of solid aluminium. This choice of material ensures high mechanical stability and resistance. EARTH AND GROUND The PPA V600's case is grounded. Internal reference ground is bridged to protective earth by means of a jumper.
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Page 12: Input Selection
THE BALANCED SIGNAL INPUT For the connection of balanced signals a gold-plated 5-pin XLR socket is located in the 'cartridge input' section on the rear of the unit, denoted as 'BAL'. 5-pin XLR Pin-Out: PIN 1 Left (+) PHASE PIN 2 Left (-) PHASE PIN 3 Ground... -
Page 13: Operation
OPERATION The following controls and displays are located on the front panel: POWER SWITCH The unit is turned on by means of the power switch. The blue LED beneath the switch indicates that the unit is ready for operation. GAIN SWITCH The gain switch on the front panel allows easy signal gain control, offering six possible settings: 30 / 36 / 42 / 48 / 54 and 60 dB. - Page 14 which, however, can easily be compensated by the balance control, with an adjustment range of +/-2 dB and a detented centre position. In order to maintain minimum crosstalk, balance is set by means of fine adjustment of the right channel, instead of a conventional balance pot as found on other devices.
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Page 15: Input Impedances
INPUT IMPEDANCE Input impedance can be precisely matched to the respective MC (moving-coil) system by means of switchable input impedance. The value matching best can either be read in the pickup's technical specifications, or optimized by further recommendations and listening tests. -
Page 16: Input Capacities
INPUT CAPACITANCE Input capacitance can be precisely matched to the respective MM (moving magnet) system by means of switchable input capacitance. The value matching best can either be read in the pickup's technical specifications, or optimized by further recommendations and listening tests. -
Page 17: Setting The Equalizer
EQUALIZATION CURVES... - Page 18 EQUALIZATION CURVES Due to technical considerations, the signal stored on vinyl records has been equalized during manufacture, i.e. low frequencies are reduced and high frequencies are boosted. Upon playback in turn, an equalizer as accurate as possible is employed in order to re-linearize frequency response.
- Page 19 THE UNBALANCED OUTPUTS The unbalanced output signal is available at gold-plated cinch sockets on the rear panel. They are denoted as 'UNBAL L' for the left channel, and 'UNBAL R' for the right one respectively. Output impedance is significantly less than 1 ohm ! THE BALANCED OUTPUTS The balanced output signal is available at gold-plated XLR connectors on the rear panel.
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Page 20: Opening The Case / Dismantling
OPENING THE UNIT In order to change any DIP switch or jumper settings inside the PPA V600, its case must be opened. For this purpose, a TORX screwdriver T10 is required, and you should - by all means - PULL THE MAINS PLUG !!! after which any setting procedures can be effected without risk. - Page 21 Thus, bandwidth still exceeds 200kHz at a gain setting of remarkable 60dB, equalling a level ratio of 1:1000 ! By means of the front gain controls, the PPA V600 can easily be adjusted even for less known pickup models without hassle. Adjustment is provided for both channels individually, in order not to impair crosstalk rejection.
- Page 22 Considered its extremely low output voltage, the performance of a moving-coil (MC) pickup system is much influenced by the amplifier's input impedance. The PPA V600 provides eight different impedance settings, while the ninth (47k) is the standard setting for moving-magnet (MM) systems.
- Page 23 Other equalization curves one may encounter are 'NAB' (National Association of Broadcasters) or 'BBC' (British Broadcasting Corporation), which can also be properly handled by the PPA V600 when set accordingly. Both these curves have effect on treble reproduction, just like the 'FLAT' curve which does not imply high-frequency equalization at all.
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Page 24: Disposal
The PPA V600 contains two thereof, i.e. one for each positive and negative voltage supply. They both provide 24 volts, which are then reduced to well- backed +/- 18 volts by linear regulators. Switching frequency ranges well... -
Page 25: Technical Data
TECHNICAL DATA PPA V600 All measurement RMS unwtd., 20 Hz - 20 kHz if not otherwise noted Inputs: 1 x XLR female, 5-pin, balanced, 2 x Cinch, unbalanced Max. Input Voltage: - 7 / -37 dBu @ 30 / 60 dB Gain Input CMRR: >... -
Page 27: Conformity Statement
EU CONFORMITY STATEMENT We herewith declare that the following unit Name: VIOLECTRIC PPA V600 Serial No. : -alle - is in conformity with the following EC directives: 2006/95 EG Low voltage directive 2004/108 EG Electromagnetic compability EN 60065 : 2002... -
Page 28: Warranty
WARRENTY Since 1986 we are constructing and manufacturing sophisticated electronics for ambitious customers. Since the early beginnings we are trying hard by accompanying measures, the use of 1st choice components and multiple quality checks during production to avoid faults at large. We are quite effective in that and this is –...
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