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Aeta Audio Systems PSP3 User Manual

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PSP3
Stereo M/S preamplifier

User manual

AETA AUDIO
361, avenue du Général de Gaulle – 92140 Clamart – FRANCE
Tél. +33 (0)1 41361212 – Fax +33 (0)1 41361213 – Telex 631178
Web :
http://www.aetausa.com
55 000 020 – Ed. B
PSP3 – User manual
Ce document est la propriété d'AETA, et ne peut être reproduit ou communiqué sans autorisation
October 2002
55 000 020-B PSP3 (Engl.).doc

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Summary of Contents for Aeta Audio Systems PSP3

  • Page 1: User Manual

    Tél. +33 (0)1 41361212 – Fax +33 (0)1 41361213 – Telex 631178 Web : http://www.aetausa.com 55 000 020 – Ed. B PSP3 – User manual Ce document est la propriété d'AETA, et ne peut être reproduit ou communiqué sans autorisation October 2002 55 000 020-B PSP3 (Engl.).doc...

  • Page 2: Table Of Contents

    6.1. Using L/R - M/S matrixing ......................9 6.2. Product specifications (data sheet) ..................... 10 55 000 020 – Ed. B PSP3 – User manual Ce document est la propriété d'AETA, et ne peut être reproduit ou communiqué sans autorisation October 2002 55 000 020-B PSP3 (Engl.).doc...

  • Page 3: Introduction

    This preamplifier features a range of sensitivity and microphone powering capabilities that is wide enough to fit all types of professional microphones. The PSP3 operates either from internal disposable or rechargeable batteries, or from an external DC source. In addition, users of M/S stereo microphones are offered the capability to tune the stereophonic image and to monitor the signal in an appropriate mode.

  • Page 4: Connections

    2. Connections All connectors are grouped on one single panel of the PSP3: Figure 1 – PSP3 “Connector panel” 2.1. Microphone or line inputs Transformerless symmetrical inputs; can be used with unbalanced sources. Required plugs: Cannon axr-3.12, Neutrik nc3mx, or Switchcraft a3m.

  • Page 5: External Dc Socket

    2.4. External DC socket The PSP3 can be powered from an external DC power source with a 6 V to 12 V voltage (15 V maximum), using the power socket located on the “connector panel”, near the “R” female XLR socket.

  • Page 6: Front Panel Controls

    +5 V. In such event, the batteries must be replaced for a new set, or (if operating from an external DC source) the external DC voltage must be increased to more than +5 V. However, immediate battery replacement is not mandatory, as the DC/DC converter inside the PSP3 maintains full performance until the power voltage reaches 3.5 V.

  • Page 7: Selection Of The Microphone Powering Mode, "Phantom

    3.5. Selection of the microphone powering mode, “PHANTOM” The “PHANTOM” 3-position slide switch allows selecting the powering mode used for the microphones or sources connected to the PSP3: • 48V : for powering static or electret microphones using 48 V phantom supply.

  • Page 8: L/R - M/S" Mode Selector (For Headphone Monitoring Or Mini Jack Outputs)

    “L/R” position. 55 000 020 – Ed. B PSP3 – User manual Ce document est la propriété d'AETA, et ne peut être reproduit ou communiqué sans autorisation October 2002 55 000 020-B PSP3 (Engl.).doc...

  • Page 9: Other Control Elements

    4.2. “R/S” signal phase inverter on the bottom panel The “R/S” signal phase inverter, located on the bottom panel of the PSP3, enables to invert the phase of the signal on the “R” input (which corresponds to “S” signal when using an M/S stereo microphone couple).

  • Page 10: Power Supply

    Do not use small cheap AC adapters; these can be a source of noise and failures. For powering the PSP3, a filtered and regulated DC source is required, capable to supply up to 500 mA. Its voltage should be in the 6 V to 12 V range (NOT MORE THAN 15 V).

  • Page 11: Annexes

    L/R↔M/S matrixing is not needed in such an operating mode. 6.1.2. Case 2: stereo recording using MS microphones In this case, M/S stereo microphone couples are used, and the output of the PSP3 is in standard stereo format. Instead of left and right, the mixer buses actually process M (Mid) and S (Side) signals. In order to output normal stereo signals, L/R↔M/S matrixing must be applied at the output (switch of the connector panel...

  • Page 12: Product Specifications (Data Sheet)

    In this way, further stereo image processing is made possible with studio equipment in later production. The PSP3 channels process M (Mid) and S (Side) signals. L/R↔M/S matrixing is not applied at the output (switch kept on the “L/R” position). However, matrixing is needed for monitoring a normal stereo signal on the headphones (front panel switch on the “M/S”...

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