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. [. . . ] 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 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. 528E Block Diagram DOWNWARD EXPANDER COMPRESSOR EXPANDER/COMPRESSOR EXTERNAL SIDECHAIN (RING=SEND. TIP=RETURN) FREQUENCY BANDWIDTH CUT/BOOST FREQUENCY BANDWIDTH CUT/BOOST FREQUENCY BANDWIDTH CUT/BOOST EQ OUTPUT OUTPUT STAGE INPUT EQ LOW EQ MID EQ HIGH EQ IN/OUT EQ CLIP DETECTION OPTIONAL POWER SWITCH OUTPUT LEVEL DISPLAY VOICE SYMMETRY IN/OUT INTERNAL OUTPUT LEVEL SELECT SWITCH OUTPUT BALANCED POWER SUPPLY OUTPUT STAGE WITH SYMMETR Y CORRECTION CIRCUIT OUTPUT THUMP MUTE CIRCUIT OUTPUT LEVEL SELECTION CIRCUIT OUTPUT UNBALANCED REV-F 21 528E Operational Details This section describes the details of operating the 528E. The 528E accepts monaural analog input signals at mic or line level, processes them, and delivers them back to you as balanced line, unbalanced line or balanced mic level signals. Stand-alone Operation A vast majority of users use the 528E as a stand-alone device. Here the 528E replaces their usual microphone preamp and either feeds their tape machine or workstation directly, in essence becoming a one-input, one-output console. 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. Use either a TRS or TS patchcord. LIN OUT PUT S T AGE UNBALANCE D OUT PUT INPUT E QUALIZE R OUT PUT INPUT E XPANDE R /COMPR E S S OR OUT PUT S IDE CHAIN DE -E S S OUT PUT INPUT PR E -AMP S T AGE OUT PUT INPUT 3. T IP=RE T URN RING=S E ND OUT PUT INPUT E XT E R NAL AUDIO PR OCE S S OR Figure 7-4. Inserting additional processing 1 An insert or series processor is one that is inserted in series with the signal to be modified. Generally speaking, series processors have a wet-dry mix control, however compressors, expanders, gates, equalizers, as well as the 528E, are all series processors that don't. 23 528E Changing the Sequence of Processing You may wish to change the sequence of processing within the 528E to allow the signal processors to work on the input signal in a particular way (your way). A good example of this is the compressor: should the equalizer precede or follow the compressor. Most studio LIN engineers would have the equalizer OUT PUT S T AGE E QUALIZE R E XPANDE R /COMPR E S S OR DE -E S S PR E -AMP S T AGE follow the compressor, like it normally does in the 528E. [. . . ] With respect to others, including but not limited to consumers for personal, family, or household use, Symetrix expressly disclaims all warranties, including but not limited to warranties of merchantability and fitness for a particular purpose and the express warranties as otherwise provided herein. Symetrix reserves the right to modify the design or make additions to, or improvements to, its product lines without making similar upgrades to Product purchased by Buyer. Symetrix does not authorize any third party, including any dealer or sales representative, to assume any liability, effect any repairs or modifications to the Product, or make any additional warranties or representation regarding the Product or Product information on behalf of Symetrix. Symetrix's total liability on any claim, whether in contract, tort (including negligence) or otherwise arising out of, connected with, or resulting from the manufacture, sale, delivery, resale, repair, replacement or use of Product will not exceed the purchase price of the Product or any part thereof which gives rise to the claim. [. . . ]