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Q4 audio PE137 User Manual

1/3 octave paragraphic equaliser
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PE137
1/3 OCTAVE PARAGRAPHIC EQUALISER
USER MANUAL

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Summary of Contents for Q4 audio PE137

  • Page 1 PE137 1/3 OCTAVE PARAGRAPHIC EQUALISER USER MANUAL...
  • Page 3 Thank you for choosing this PE series paragraphic equaliser for your application. You have made an excellent choice. This PE series paragraphic equaliser is designed and built to be the most versatile analog graphic plus parametric proces- sor available. The combination of a full featured graphic and parametric equaliser with high and low pass and shelving fil- ters provides full control to even the most exacting user.
  • Page 4 Explanation of grahical symbols: CAUTION This symbol is intended to alert the user of presence of uninsulated dangerous voltage within the products RISK OF ELECTRIC SHOCK enclosure that may be of sufficient magnitude to con- DO NOT OPEN stitute risk of electric shock to persons. This symbol is intended to alert the user of presence CAUTION: To reduce the risk of electric shoc, do not of important operating and maintenance (servicing)

  • Page 5: Safety Instructions

    Safety Instructions beyond those means described in this operating manual. All other servicing should be referred to qualified personnel. 11. To prevent fire or electric shock - Only use the polarised 1. Read Instructions - All safety and operating instructions should mains plug option together with a polarised receptacle.

  • Page 6: The Front Panel

    The Front Panel 12K5 12K5 CLIP CLIP GAIN GAIN GAIN GAIN GAIN GAIN GAIN GAIN - 00 - 00 - 00 - 00 - 00 - 00 NOISE NOISE NOTCH NOTCH NOTCH NOTCH NOTCH NOTCH SIG. SIG. MEASURING MEASURING SHELVING FILTERS SHELVING FILTERS POINT POINT...
  • Page 7 9. ‘LP’ switch with control led to turn LP filter on or off. it can be important to reduce the signal level in the shelv- 10. Low Pass frequency adjustment. Range is 2KHz* to ing filters to accommodate the boost and avoid clipping of 40KHz*.
  • Page 8 2000 2000 FREQ. FREQ. Each of the 3 parametric sections of the PE137 operates independantly of the others and allows the setting of a fully adapt- -15.00 able boost, cut or notch filter anywhere in the audio spectrum. 1. The coarse frequency control allows the setting of the filter center frequency.
  • Page 9 same alignment (center frequency and Q) of which one boosts * Note: Although high quality carbon polymer potentiometers a certain number of dB’s while the other cuts that same amount are used in this unit, absolute calibration accuracy of these will perfectly compensate each other because both the gain controls is only modest.

  • Page 10: The Rear Panel

    Q4audio IS A PRODUCT OF SUMMIT ENGINEERING NV Model: PE 137 MADE IN BELGIUM, EU WARNING: TO REDUCE THE RISK Serialnr.: PE137-01AA-0001 OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN MOISTURE. USER Date of manufacture: 05.11 .02 SERVICEABLE PARTS INSIDE.
  • Page 11 5. 15 pin SubD system connector. This connector integrates the safety. The mains cable supplied with this unit is a universal PE137 in the optional Q4audio equaliser drawer. The system European model. Use only the polarised mains plug option connector can also be used to monitor and control the unit together with a polarised receptacle.
  • Page 12 System connector layout and pinning information...
  • Page 13 GRAPHIC SECTION GRAPHIC SECTION PARAMETRIC PARAMETRIC SECTION SECTION CUT FILTERS CUT FILTERS 1600 1600 1600 1600 1600 1600 12dB/OCT. 12dB/OCT. PE137 PE137 PARAGRAPHIC EQUALISER 6 dB 6 dB POWER POWER 2000 2000 2000 2000 2000 2000 SCALE SCALE FREQ. FREQ.

  • Page 14: Specifications

    Specifications Filters: Input: • Graphic equaliser: 30 near ISO centre frequencies 25Hz- • Type: Electronically balanced. Transformer balancing op- 20KHz 1/3 octave. tional. Graphic filters centre frequency tolerance < 5%. • Input impedance:10KOhm. Equal impedance for + and - legs. Max boost/cut: switcheable 6 or 12dB ±0.5dB reciprocal.
  • Page 15 Weight: • Shipping: 3.1kg; Net: 2.4 kg. Standards: • Safety: EN60065 • EMC: EN55103-1/EN55103-2/E2/E3 Note: Although high quality carbon polymer potentiometers are used in this unit, absolute calibration accuracy of these controls is only modest. Indicated values on the front panel represent average numbers collected from several pro- duction lots.
  • Page 16 Warranty SUMMARY The Q4audio division of Summit Engineering nv Tongersesteenweg 190 3800 Sint-Truiden Belgium, the creators and manufacturers of the Q4audio product line warrants to you, the original purchaser and any subsequent owner of this Q4audio product, for a period of 2 (two) years (warranty period) from the date of purchase by the original purchaser that the product is free of defects in components and factory workmanship.

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