User manual LEXICON 20 QUICK REFERENCE GUIDE REV 1

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You may also download the following manuals related to this product:

   LEXICON 20 REV 0 (185 ko)
   LEXICON 20 REV 1 (179 ko)
   LEXICON 20 REV 2 (185 ko)
   LEXICON 20 QUICK REFERENCE GUIDE REV 2 (42 ko)

Manual abstract: user guide LEXICON 20QUICK REFERENCE GUIDE REV 1

Detailed instructions for use are in the User's Guide.

[. . . ] 20/20 AD Quick Reference Guide UNBAL THRESH 1 OVL 0 3 6 12 18 24 30 36 42 60 UNBAL THRESH 1dB SCALE PK HOLD ATTEN UNBAL THRESH ALT MUTE 2 3 M C P OVL 0 3 6 12 18 24 30 36 42 60 UNBAL THRESH DISPLAY DIGITAL COMP/LIMITER 6 4 8 10 -26 -6 -36 0 0 + 0 12 M C P ~ + · ­ 4 CHAN EMPH RMT -18 -22 -14 -10 10 100 mS 1S ·­ DITHER FORMAT LINK 2 ON VID AES / WC: WIDE HF 48 AES WC PRES 20BIT PL DN 44. 1 SPDIF AES LOCK POWER SAMPLE RATE 20/20 AD EXT SYNC 20 BIT A/D CONVERTER 4 GAIN THRESHOLD RELEASE Getting Started Input Connections Balanced pin 1 pin 2 pin 3 Screen (Shield) Positive Polarity Return Unbalanced Screen and Return Positive Polarity Open or Return Make sure the rear panel BALANCE switches are set to match the type of input. (IN = unbalanced; OUT = balanced) The red UNBAL light will indicate an error if there is a mismatch. EXT SYNC allows you to synchronize to an internally derived sample clock, or to an external AES or Word Clock signal in the range of 4151kHz. Dither types vary in spectral distribution of noise: WIDE produces white noise HF produces noise whose amplitude is lower than WIDE at low frequencies, but higher at high frequencies. [. . . ] When the compressor is ON, pressing DISPLAY will cause gain reduction (in dB) to be displayed on the right two meters (2channel mode) or on all four meters (4-channel mode). NORMAL OVL 0 3 6 12 18 24 30 36 42 60 - red - red - yellow - yellow - green - green - green - green - green - green - green OVL 0 -3 -6 -12 -18 -24 -30 -36 -42 -60 1dB SCALE OVL 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 GAIN REDUCTION 1 2 3 4 5 6 7 8 9 10 11 Switches ON 4-Channel Mode 2-Channel Mode none 1 dB SCALE DISPLAY Meters 1 & 2 Normal 1 dB Scale Gain Reduction Meters 3 & 4 Normal 1 dB Scale Gain Reduction (Blank) 1 dB Scale Gain Reduction none 1 dB SCALE DISPLAY Normal Normal Normal Alternate Modes To activate the alternate modes. . . press and hold ALT-ATTEN will mute the outputs. ALT-4 CHAN activates output of a digital sinewave at the AES ports. ALT-DISPLAY activates remote mode/front panel lockout. When activated, the 1dB SCALE and DISPLAY LEDs flash and front panel controls are locked into their current settings. In 4-channel mode, ALT-LINK activates a synchronized short tone burst. ALT-ON is reserved for future enhancements. ALT-DITHER activates psychoacoustically optimized noise shaping. (Disables 4channel mode, compression and mute functions. ) 070-09091 Rev 1 . . . then press one of these. 1dB SCALE ALT MUTE Repeat to exit the alternate mode. © 1993 ATTEN RMT DISPLAY LINK ON VID DITHER ~ 4 CHAN 20/20 AD Quick Reference Guide 3+4 DO 1+2 DO PUSH AES SYNC IN WORD CLOCK IN OUT PUSH 4 IN 3 UNBAL BAL PUSH PUSH 2 IN 1 UNBAL BAL PUSH V~ Using the Compressor GAIN 0dB -3dB -6dB -8dB 1 1. 50:1 1. 20:1 1. 14:1 1. 11:1 1. 09:1 1. 07:1 1. 06:1 1. 06:1 1. 05:1 1. 05:1 1. 04:1 1. 04:1 1. 03:1 1. 02:1 2 3. 00:1 1. 50:1 1. 33:1 1. 25:1 1. 20:1 1. 16:1 1. 14:1 1. 12:1 1. 11:1 1. 10:1 1. 09:1 1. 08:1 1. 07:1 1. 06:1 3 4. 00:1 2. 00:1 1. 66:1 1. 42:1 1. 33:1 1. 27:1 1. 23:1 1. 20:1 1. 17:1 1. 16:1 1. 14:1 1. 13:1 1. 11:1 1. 09:1 4 4. 00:1 3. 00:1 2. 00:1 1. 66:1 1. 50:1 1. 40:1 1. 33:1 1. 28:1 1. 25:1 1. 22:1 1. 20:1 1. 18:1 1. 15:1 1. 12:1 5 4. 00:1 4. 00:1 2. 66:1 2. 00:1 1. 71:1 1. 55:1 1. 45:1 1. 38:1 1. 33:1 1. 29:1 1. 26:1 1. 23:1 1. 20:1 1. 16:1 6 4. 00:1 4. 00:1 4. 00:1 2. 50:1 2. 00:1 1. 75:1 1. 60:1 1. 50:1 1. 42:1 1. 37:1 1. 33:1 1. 30:1 1. 25:1 1. 20:1 7 4. 00:1 4. 00:1 4. 00:1 3. 33:1 2. 40:1 2. 00:1 1. 77:1 1. 63:1 1. 53:1 1. 46:1 1. 41:1 1. 36:1 1. 30:1 1. 24:1 8 4. 00:1 4. 00:1 4. 00:1 4. 00:1 3. 00:1 2. 33:1 2. 00:1 1. 80:1 1. 66:1 1. 57:1 1. 50:1 1. 44:1 1. 36:1 1. 28:1 9 4. 00:1 4. 00:1 4. 00:1 4. 00:1 4. 00:1 2. 81:1 2. 28:1 2. 00:1 1. 81:1 1. 69:1 1. 60:1 1. 52:1 1. 42:1 1. 33:1 10 4. 00:1 4. 00:1 4. 00:1 4. 00:1 4. 00:1 3. 50:1 2. 66:1 2. 25:1 2. 00:1 1. 83:1 1. 71:1 1. 62:1 1. 50:1 1. 38:1 11 4. 00:1 4. 00:1 4. 00:1 4. 00:1 4. 00:1 4. 00:1 3. 20:1 2. 57:1 2. 22:1 2. 00:1 1. 84:1 1. 73:1 1. 57:1 1. 44:1 12 4. 00:1 4. 00:1 4. 00:1 4. 00:1 4. 00:1 4. 00:1 4. 00:1 3. 00:1 2. 50:1 2. 20:1 2. 00:1 1. 85:1 1. 66:1 1. 50:1 THRESHOLD -10dB -12dB -14dB -16dB -18dB -20dB -22dB -24dB -26dB -30dB -36dB To minimize the audibility of compression artifacts, use ratios from the unshaded portion of the table. Dynamic Range Compression Start with compressor GAIN set between 4 and 6dB. Shorten the time constant for percussive program material and lengthen it for voice. Start with RELEASE set to 100mS and adjust it for the program material Overload Protection Press PK HOLD and 1dB SCALE. Set input so that peaks read approximately -4dB. [. . . ] Connect the appropriate sync source or use EXT SYNC to select Internal Sync (neither WC nor AES lighted). AES sync source must be within 41-51 kHz range. 3 Oak Park · Bedford, MA 01730 USA · Tel 781-280-0300 · Fax 781-280-0499 [. . . ]

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