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Professional Disc Jockey Products
DM 1835X STEREO MIXER
OWNER’S MANUAL
NUMARK INDUSTRIES
11 Helmsman Road, North Kingstown RI 02852 http://www.numark.com
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DM1835X Numark - The Proven Leader in DJ Technology ©1997 Numark Industries 2 http://www.numark.com
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DM1835X 6. Heat - Avoid placing this product too close to CAUTION any high heat sources such as radiators. RISK OF ELECTRIC SHOCK 7. Power Sources - This product should be DO NOT OPEN connected to a power supply only of the type described in these operating instructions, or as CAUTION: TO REDUCE THE RISK OF ELECTRIC marked on the unit. SHOCK DO NOT REMOVE ANY COVER. NO USER- SERVICEABLE PARTS INSIDE. REFER SERVICING TO 8. Power Cord Protection - Power supply cords QUALIFIED SERVICE PERSONNE
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DM1835X NUMARK DM1835X STEREO MIXER INDEX Safety Information Page 3 Product Registration Introduction and Features Page 5 Precautions Page 7 Front Panel Diagram Page 8 Beatkeeper Diagram Page 10 Beatkeeper Operation Page 11 Rear Panel Diagram Page 16 Connection Instructions and Diagram Page 17 Specifications Page 18 Block Diagram Page 19 Warranty and Service Page 20 Numark - The Proven Leader in DJ Technology ©1997 Numark Industries 4 http://www.numark.com
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DM1835X CONGRATULATIONS! You have purchased the DM1835X Stereo Mixer by Numark. This equipment features all new multi-source Beatkeeper technology. With all new circuitry and the latest in manufacturing and design technology you get greater quality and better reliability than ever before. TheDM1835X Preamp Mixer has been designed by DJs for DJs. It gives you all of the controls and features you need in a professional piece of equipment to show off the best of your skills.
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DM 1835X As a special bonus we have included a right angle headhpone adapter with this mixer. Just plug your headphones into the adapter and then plug the adapter into your mixer. Numark - The Proven Leader in DJ Technology ©1997 Numark Industries 6 http://www.numark.com
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DM1835X IMPORTANT INFORMATION... Please read this entire manual before connecting the DM1835X to your system. For optimum performance: SYSTEM PRECAUTIONS • Use appropriate cables throughout your • Always make sure that AC power is OFF system: Quality shielded audio cables and while making any connections. terminated shielded video cables, low- capacitance preferred. Speaker cables must be • Do not use excessively long cables (i.e. over 14-gauge minimum; 12- or 10-gauge is better. 50ft/14m) Be s
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DM 1835X DM1835X FRONT PANEL DIAGRAM... 23 22 21 1 19 17 2 20 4 3 5 6 18 16 7 8 12 13 11 14 9 10 15 1. Channel Input Gain/Trim/Attenuation Controls. 5. DJ Mic Talkover Switchhen engaged this mutes your These control the sensitivity of the inputs for Channels 1-4. music sources from channels 1-4. Releasing it brings you Use these whenever a particular source causes overload of immediately back to full source level. It is very useful for the preamp inputs. Attenuation range is 0dB to -20dB. Use
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DM1835X 9. The Crossfader In/Out Pushbutton defeats the leaving the other frequencies playing. This area is always entire Crossfader function but leaves the Kill functions active even when the crossfader is not. Try that for a neat active. effect, or mix one channel’s treble with another channel’s bass (by cutting the mid and bass on the first channel and 10. Crossfader/Kill Assign Switches lets you choose the treble and mid on the other channel.) which input channel will be heard when the Cros
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DM 1835X the BEATKEEPER Panel Diagram H I F G A. CHANNEL SELECT- Tap this button to select desired input channel. The respective E input channel LED will light up 1,2,3,or 4 B. SYNC LOCK BUTTON- A When an input is scanning for the correct tempo, tapping the C Sync Lock button once will lock in the current BPM as long as B there is a BPM number displayed for the input. When an input is locked in tapping the Sync Lock button tells the Beatkeeper to D start scanning for a new tempo again. C. SYNC
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DM1835X BEATKEEPER OPERATION After syncing an audio input, try speeding up and slowing down the music. You'll notice that the red beat LED will continue to flash on the downbeat, and the BPM number Channel Selection will adjust itself to match the tempo of the music. This When your mixer is first turned on the channels selected indicates that the Beatkeeper is successfully tracking the will be 1 & 2 respectively. If you wish to track the beat of beat and will continue to do so throughout your m
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DM 1835X 2 Channel Mixing If the opposite is true, the Tempo Difference Graph has a After you feel comfortable syncing up the Beatkeeper, red LED illuminated on the left channel, indicating the song you're ready to mix. Mixing with the Beatkeeper on the left channel is faster than that the right channel, has three parts: syncing to the music (which either slow down the left channel, or speed up the right you've done), aligning the tempos, and aligning channel.The second step involves the bott
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DM1835X Multiple Channel Mixing Prepping For A Mix One exciting feature of your Beatkeeper built into your You may also choose to prep the Beatkeeper for an mixer is the option to visually beat mix more than 2 sources actual mix. To prep the Beatkeeper, first match the two at the same time. Once you have synced a channel of the song's tempos by adjusting the pitch so that the Tempo Beatkeeper the unit will continue to track it even if you Difference LED graph displays yellow or green LEDs. Next
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DM 1835X BEATKEEPER TROUBLESHOOTING T5 The BPM display is correct, but the beat LED isn't flashing on the downbeats of the music. T1 The BPM goes way off when using the search If this happens tap the Sync Lock button (turning the button on my high tech CD mixer. Sync Lock LED on) and tap the Beat Assist button once to Some high tech CD mixers have a cueing feature which make the Beatkeeper track the downbeat. You can also use allows you to cue precisely to an exact spot in the music so this to f
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DM1835X T8 I hit the Sync Lock button, but the flashing T12 Neither the Tempo Difference graph or the red beat LED doesn't seem to follow the beat. Beat Offset graph seem to work. This means you hit the Sync Lock button before the The bar graphs are only operational when both Sync red beat LED actually started tracking the tempo. You can Lock LEDs are illuminated. This ensures that you don't easily fix this by tapping the Beat Assist buttons as many inadvertently try to mix two songs without the
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DM 1835X DM1835X REAR PANEL DIAGRAM... 11 8 8 12 6 10 1 4 2 3 5 7 7 7 9 7 9 7 9 1. The Balanced Main Outputs are low-impedance XLR 8. Line/Phono Input switch. Use this to allow line level type connectors controlled by the Master fader. equipment to be plugged into your phono inputs giving you a total of 8 line input options. 2. The Stereo Main Outputs are low-impedance RCA connectors controlled by the Master fader. 9. Phono Inputs on Channels 1, 2 and 3 use unbalanced RCA jacks. Your input sign
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DM1835X DM1835X Instructions for Connection and DIAGRAM... Tape Deck Zone 1 Sound System w/ Amplifier Sampling Keyboard Turntable 1 Zone 2 Sound System w/ Amplifier AC Outlet Microphones Turntable 2 Tape Deck Main Sound System Dual CD Player Turntable 3 CD Player w/ Amplifier 1. Be sure the POWER (22) 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 ca
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DM 1835X SPECIFICATIONS... INPUTS: BEATKEEPER: Line: 10kΩ input impedance Sync Lock Mode 100 mV rms sensitivity (for 1.22 V output) BPM update rate : Every beat Mic: 10kΩ input impedance balanced/unbalanced BPM accuracy : +/- 1 BPM 3 mV rms sensitivity (for 1.22 V output) BPM tracking range : 50-199BPM 50 mV rms max input Bar graph update rate : Every beat Phono:47kΩ input impedance Tempo difference graph resolution: 1.5 mV rms sensitivity @ 1 KHz (for 1.22 V +/-1 BPM per LED, g
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DM1835X BLOCK DIAGRAM... Numark - The Proven Leader in DJ Technology ©1997 Numark Industries 19 http://www.numark.com
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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 from an authorized Numark Dealer, but not to exceed 2 years from date of shipment by Numark. The Numark obligation under this warranty is limited to repa
