xqp-531-owners-guide-1.8 电路图.pdf

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1、XQP 531 Owners Guide Chassis + Output - Output Audio Common - Input + Input + 16 VDC Power Ground - 16 VDC 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. OPERATION The 531 is simple to use. The FREQUENCY switch allows you to select one of three cutoff points for the sidechains high pass filter.

2、These points, labeled X, Y, and Z (long before it was realized that XQP would be making this product) are in the area of 3, 5, and 7KHz respectively. As mentioned, the filter is high pass - not band pass. This ensures that all sibilance occurring above the selected frequency point will be dealt with

3、 by the optoisolators. You are not forced to home in on a very narrow frequency band. Simply select the highest of the three points that allows adequate sibilance reduction. The amount of gain reduction is adjusted with the REDUCTION control in conjunction with the X10 switch. The X10 switch multipl

4、ies the sensitivity of the sidechain by a factor of ten, allowing the 531 to be used effectively on low level signals. With a +4 signal, it allows all consonents to be totally obliterated, guaranteeing loss of employment, so use with caution. The red LED lights up when gain reduction is taking place

5、 in the same manner as the LEDs in the optoisolators, providing a meter of gain reduction. Finally, the IN switch activates the sidechain. Disengaging this switch silently bypasses the unit, although the audio path remains active. WARRANTY The XQP 531 Optical De-esser is warranted for ten years from

6、 the date of purchase. You do not have to fill out the enclosed warranty card, but we would appreciate the info. You may also register your 545 online at . XQP 610 N. 14th Street Enid, OK 73701 580-231-1941 1.8 We think you will find the 531 a very smooth and unobtrusive sibilance controller. We hav

7、e not attempted a surgical device here, but a musical one. We believe that subtle processing is the best approach for this task. After all, you dont want to eliminate sibilance, but reduce it. We dont think you want to eliminate it, but its a free country. 43K balanced 50 balanced 4Hz - 90KHz (-3dB)

8、 22dBu 0.002% 1KHz -80dBm, unweighted 10msec. 18msec. 86mA 16VDC Input impedance: Output impedance: Frequency response: Max. output level: THD: Noise: Attack time: Release time: Current requirement: SPECIFICATIONS IN X10 REDUCTION FREQUENCY OPTICAL 531 DE-ESSER 0 4 8 12 16 20 24 28 32 36 40 X Y Z XQ

9、P INTRODUCTION Thank you for purchasing the XQP 531 Optical De-esser. The 531 is a high frequency limiter designed specifically for control of sibilance. It uses a pair of VACTROL optoisolators to provide smooth high frequency gain reduction for natural de-essing. The 531 is a VPR module (hopefully you are already aware of this) designed to fit into the common 500 series racks orginated by API. It follows the standard API pinout. XQP is a member of APIs VPR Alliance, and the 531 is an approved APR Alliance product. XQP RadioFans.CN 收音机爱 好者资料库