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Numark Industries DM1720X manual

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Table of contents for the manual

  • Page 1

    Professional Disc Jockey Products DM1720X STEREO MIXER OWNER’S MANUAL NUMARK INDUSTRIES 11 Helmsman Road, North Kingstown RI 02852 http://www.numark.com[...]

  • Page 2

    DM1720X Safety Information and Product Registration CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE ANY COVER. NO USER- SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY. The lightning flash with arrowhead symbol within the equilateral triangle is intended to alert t[...]

  • Page 3

    DM1720X NUMARK DM1720X STEREO MIXER INDEX Safety Information Page 2 Product Registration Introduction and Features Page 4 Precautions Page 5 Front Panel Diagram Page 6 Rear Panel Diagram Page 8 Connection Instructions Page 9 Connection Diagram Page 9 Specifications Page 10 Block Diagram Page 11 Warranty and Service Page 12 Numark - The Proven Leade[...]

  • Page 4

    DM1720X CONGRATULATIONS! You have purchased the DM1720X Stereo Mixer by Numark. This equipment features all new circuitry and the latest in manufacturing and design technology to give you greater quality and better reliability than ever before. The DM1720X Preamp Mixer has been designed by DJs for DJs. It gives you all of the controls and features [...]

  • Page 5

    DM1720X IMPORTANT INFORMATION... Please read this entire manual before connecting the DM1720X to your system. For optimum performance: • Always make sure that AC power is OFF while making any connections. • Do not use excessively long cables (i.e. over 50ft/14m) Be sure plugs and jacks are tightly mated. Loose connections can cause hum, noise o[...]

  • Page 6

    DM1720X DM1720X FRONT PANEL DIAGRAM... 1 2 3 5 6 7 8 9 10 13 14 11 15 16 17 18 19 20 21 4 12 1. Channel Input Gain/Trim/Attenuation Controls . These control the sensitivity of the inputs for Channels 1-4. Use these whenever a particular source causes overload of the preamp inputs. Attenuation range is 0dB to -20dB. Use these with the PFL (pre-fader[...]

  • Page 7

    DM1720X 9. The Crossfader In/Out Pushbutton defeats the entire Crossfader function but leaves the Kill functions active. 10. The replaceable Crossfader achieves clean segues between two selected input channels. 11. The Crossfader Channel Assign switches determine which channels the crossfader will segue between. In this example, Channel 1 is select[...]

  • Page 8

    DM1720X DM1720X REAR PANEL DIAGRAM... 1 2 3 4 6 7 9 7 7 7 7 9 9 11 10 5 1. GND is the grounding lug for turntables 1, 2 and 3 (phono inputs on Channels 1, 2 and 3). Always use this connection (your turntable cable should have a grounding wire). 2. The Stereo Main Outputs are low-impedance RCA connectors controlled by the Master fader. 3. The Tape O[...]

  • Page 9

    DM1720X Instructions for Connection.... 1. Be sure the POWER is OFF. All connections should be made before the unit is turned on. Always remember “Turn Amps on last and off first!” 2. Use appropriate cables throughout your system: quality shielded audio cables, low capacitance preferred. Speaker cable must be 14-gauge minimum; 12- or 10-gauge i[...]

  • Page 10

    DM1720X SPECIFICATIONS... INPUTS: Line: 47k Ω input impedance 78mV rms sensitivity (for 1.22 V output) Mic: 10k Ω input impedance balanced/unbalanced 3 mV rms sensitivity (unbalanced for 1.22 V output) 1.5 mV rms sensitivity (balanced for 1.22 V output) 80 mV rms max input (unbalanced) 40 mV rms max input (balanced) Phono: 47k Ω input impedan[...]

  • Page 11

    DM1720X BLOCK DIAGRAM... Numark - The Proven Leader in DJ Technology ©1998 Numark Industries 11 http://www.numark.com[...]

  • Page 12

    Professional Disc Jockey Products Warranty and Service Information Numark Industries, LLC and Numark International, Inc. (hereafter “Numark”) warrants each new product manufactured and/or supplied by it to be free from defects in material or workmanship under conditions of normal use and service for 360 days, beginning on the date of purchase f[...]