User manual SYMETRIX 522

[. . . ] Symetrix assumes no responsibility with regard to the performance or use of these products. Under copyright laws, no part of this user guide may be reproduced or transmitted in any form or by any means, electronic or mechanical, without permission in writing from Symetrix, Inc. If, however, your only means of access is electronic, permission to print one copy is hereby granted. 14926 35th Ave. West Lynnwood, WA 98037 USA Tel (425) 787-3222 Fax (425) 787-3211 www. symetrixaudio. com Chapter 1 Introduction The Symetrix 528E is a single-channel Voice Processor intended for use in voice-over studios, broadcast studios, sound-reinforcement, music and speech recording, and post-production. [. . . ] You should operate the 528E's mic preamp at the highest gain possible without overload. Extremely hot signals may require using the -15 dB pad switch. The 528E expects line level signals to fall in the +4 dBu region. Lower signal levels are okay, but the noise performance may suffer as there is no gain trim control for the line input. The CLIP LED in the mic input section of the 528E actually monitors the output of the MIC-LINE switch. If the LED glows, and you are using the MIC input, then reduce the setting of the MIC GAIN control until the LED no longer glows. If you are using the LINE input, reduce the level of the device driving the 528E. The CLIP LED in the OUTPUT LED meter monitors levels in the equalizer as well as at the output of the 528E. If the CLIP LED glows, try switching the equalizer to BYPASS. If the LED still glows, reduce the setting of the OUTPUT GAIN control. If switching the equalizer to BYPASS eliminates the clip indication, then the input level must be reduced via the MIC GAIN control or by lowering the level of the line input. 20 MIC GAIN IN/OUT CLIP DE-ESS IN/OUT FREQUENCY THRESHOLD +48V/BYPASS PRESS PHANTOM POWER SUPPLY DE-ESS -15dB PAD PREAMP PRESS MIC LINE EXP THRES GAIN COMP THRES COMP RATIO EXP/COMP IN/OUT EXP/COMP OUTPUT EQ INPUT Figure 7-1. Use the channel-insert jacks as described under the previous heading or insert the 528E between your console and your tape machine. Using the Patch Points Located on the rear panel are several TRS jacks. These jacks are the connections between the various processors that make up the 528E. The jacks are half-normalled, which means that without any plugs inserted, the signal flows through them via internal switching contacts. The term "half normal" means that only the input or return jack has switching contacts; inserting a plug into the output or send jack does not break the signal path. This allows you to access the signal at various points in the 528E's signal path for use with external processors. The patch point jacks can be used to insert additional processing into the signal path or perhaps to rearrange the sequence in which the individual processors receive the input signal. Still another possibility would be to use the parametric equalizer in the sidechain of the compressor/downward expander (for additional information on using the sidechain, see the end of this chapter). Inserting Additional Processing Figure 7-4 shows an external processor inserted between the 528E's equalizer and its output stage. To insert additional (external) processing into the 528E's signal path: 1. Decide where in the signal path you wish to insert the external processor. Patch the appropriate output jack on the 528E to the input jack of the external processor. Patch the output jack of the external processor to the corresponding input jack on the 528E. [. . . ] Wrap the unit in a plastic bag, and surround it with bubble-wrap. Be sure there is enough clearance in the carton to protect the rack ears. In-Warranty Repairs Repairs made in-warranty will cost you only one-way freight charges. We'll prepay the return (surface) freight. Of course, if the repair is due to operator error, parts and labor will be charged. [. . . ]