User manual CREST AUDIO NC-MEQ TECHNICAL DATASHEET

[. . . ] INPUT PROCESSING MODULE FOR CKS, CKV & CKX SERIES POWER PROCESSING AMPLIFIERS Power Processing Modules NC-MEQ 4-band Parametric EQ & Mono Crossover Product Information The NC-MEQ Module fits in the Input Processing bay located on the rear panel of Crest Audio CKS, CKV & CKX Series Power Processing amplifiers. It is an extremely high quality, fourth-order, two-way electronic mono crossover that includes a four-band fully programmable parametric equalizer. [. . . ] (NexSys-compatible Power/Output and Network NC modules are required for NexSys implementation. ) Features: · NexSys compatible, programmable two-way, 24dB per octave electronic crossover · Four-band parametric EQ with programmable boost/cut, bandwidth and frequency parameters · All parameters (including precision attenuation settings) programmable via NexSys , hand-held N-Coder or N-Coder/PC software · Independent two-way, 4th-order, Linkwitz-Riley filters · Post-EQ, loop-thru HF and LF outputs · Balanced input on barrier strip connector · Removable gain pot knobs for security Internal Features: · Jumper-selectable gain of X20 (26 dB), X40 (32 dB, factory setting), or constant sensitivity for full output at 0dBu (. 775V) in. · Jumper-selectable assignment of high-pass or low-pass output for each amplifier channel NC-MEQ connections N-Coder Crest Audio Revision 1. 03E OR PC Lap-Top running N-Coder/PC software To other amplifiers Designed & manufactured in the USA by: CLASS 2 WIRING MAY BE USED Crest Audio Inc. Paramus, New Jersey 07652 USA Daisy Chain Output HP N-Coder Data Port LP Level 456 A3 7 Output ­ A Model Name CKV 100 CKV 200 CKV 400 CKV 800 CKV 1600 CKV 2400 Output Power @70. 7V 50W 100W 200W 400W 800W 1200W Model Name CKS 100 CKS 200 CKS 400 CKS 800 CKS 800-2 CKS 1200-2 CKS 1600-2 Output Power @8/Ch. 50W 100W 200W 400W 400W 600W 800W + + B 2 1 0 8 9 10 Level 456 B3 7 Input ­ Signal Ground Lift Jumper Network Data 5432 1 Address F 1 F Model NC-NXS E + ­ 2 1 0 8 9 10 5432 +­ +­ Hi Lo NexSys Bus Input Signal Architects and Engineers Specifications - NC-MEQ. The module shall plug into Crest Audio CKS or CKV Power Processing amplifiers in the Input Processing bay. The module shall provide a two-way, 24 dB per octave electronic crossover with programmable HF and LF output levels, HF and LF crossover frequencies, overall output level and HF/LF polarity inversion. The module shall include a fully programmable four band parametric equalizer with center frequency, bandwidth and boost/cut parameters. The module shall be controlled/programmed either by NexSys via an NC-NXS module (if fitted), a hand-held N-Coder or NCoder/PC software. A E DCB DCB 9876 A 9876 Model NC-MEQ All programmed settings shall be stored in non-volatile EEPROM memory. A barrier strip input connector shall feed one electronically balanced input. Two removable-knob gain pots shall be provided that control the level of each amplifier channel independent of programming. Post high pass and low pass loop-thru outputs shall be available on barrier strip connectors. An internal input sensitivity/voltage gain jumper shall be provided with selections of 0dBu, X20 and X40. The module shall be designated the Crest Audio model NC-MEQ. NC-MEQ Input Processing Module Mono Crossover & 4-band Parametric EQ BLOCK DIAGRAM IN + G LO EQ B/C F BW LO MID EQ B/C F BW HI MID EQ B/C F BW HI EQ B/C F BW Vosc Input for LM Gain Atten Gain CH A Power Amp HP 1 HP 2 Trim Freq LP 1 Freq LP 2 Trim Atten I/F ckt ID ckt CH B Power Amp NexSys Module Bus Daisy Chain HF Out LF Out N-Coder Data Port Freq Freq S P E C I F I C AT I O N S Crossover frequencies: Input impedance: Dynamic Range: Common mode rejection: CONTROL OPTIONS 80Hz-8kHz 50k (about 112 dB) TBD >90dB typ. [. . . ] ©1996 Crest Audio Inc. Crest Audio Inc. 100 Eisenhower Dr. , Paramus NJ 07652 USA TEL: 201. 909. 8700 FAX: 201. 909. 8744 http://www. crestaudio. com *A3300027* v. [. . . ]