MX100, MX100C, MX101 & XP100 MONO OUTPUT MIXERS and INPUT EXPANDER OPERATING AND MAINTENANCE MANUAL Model MX101 Model MX100 Model XP100 © Copyright 2011, ATI Audio Inc. ATI Audio Inc. ■ Tel: 856-626-3480 ■ Fax: 856-504-0220 ■ sales@atiaudio.com ■ www. audio.
PURPOSE The MX101 is a three-input miniature mono mixer designed for demanding inthe-field use in broadcast ENG (Electronic News Gathering) and Field Production applications. The MX101 incorporates most of the features requested by news professionals, sports announcers, and film and video sound engineers into a tiny and rugged package.
tion. The MX101 provides a high-level line output that will drive either balanced or unbalanced external loads of 600 ohms or higher. The XLR output may also be jumper-plug programmed for microphone level output. A HEADPHONE switch selects either full program or split program and cue. A recessed, thumbnail operated headphone level control minimizes panel clutter and once set, tracks the MASTER output.
MOUNTING Up to three Mixers and/or Input Expanders will mount side-by-side in only one rack unit high using the available rack mounting shelf. They may also be neatly stacked or mounted side-by side on your desk with the available angled desk mounting kits and/or Horizontal Joiner. Extra knob caps are provided to allow you to color code the input controls. Yellow, red and green caps are supplied in addition to the gray and blue caps on the units.
PHANTOM POWER Phantom power at regulated +20.2VDC through an equivalent 1.66Kohm resistance is supplied to a microphone when the appropriate rocker DIP switch (S11, S21, S31 position 1) is selected ON and the MIC/LINE pushbutton is in the MIC position. This voltage level is more than adequate for most, but not all, phantom powered microphones even though they may be labeled 48V phantom power.
load will be driven with equal and anti-phase levels on the HI and LO output lines. An unbalanced (one side grounded) load will cause the driver IC to shut off the signal output to the grounded side of the load and double the output level applied to the other side, thus maintaining equal output to either type of load. The output stage will drive loads of 600 ohms and higher. Nominal output is +4dBm with clipping at +22dBm into balanced loads.
slate mike level adjustment. A 740Hz low distortion test tone oscillator is selected by the maintained up position of the same panel switch. The oscillator is injected into the mixing buss at the optimum level to set your master control for 0VU (+4dBm out). A bi-color LED lights to tell you that funny sound in the mix is the test tone oscillator you forgot to turn off. EXPANSION INPUT Loop-thru 1/8" T-S (Tip-Sleeve) jacks J7 and J8, mounted on the rear panel, feed the mixing buss at the input of A4A.
Each MX100 draws about 120mA and each XP100 draws 70mA; therefore, one MX100 could be combined with up to four XP100 units on a single power supply module (120 + (4 X 70) = 400mA). Any combination which totals less than 400mA can be powered by a single WA100-1 supply. BATTERY POWER Several battery power systems are available for field powering of the MX100 or MX101. The BBU100-1 houses four 9V alkaline or lithium batteries and will power the MX101 for four to six hours.
er. Make sure you have unpacked any battery packs or converters you have ordered. Rack and desk mounting hardware may be packed in with the unit even though ordered separately. Wall mount power supplies may either be included in with the unit or shipped in their own box. The PROK-1 and ABAG-1 are generally pre-assembled to the mixer if shipped direct from the factory; otherwise, they will be in a separate box.
CUE/ MONITOR HEADPHONE LEVEL The CUE/MONITOR level adjust trimmer on the MX101 (R74) is factory set for a comfortable listening level at a director’s cue input level of -10dBu (.25Vrms) but can be adjusted as required. MOUNTING You may rack mount one, two, or three units across in a standard EIA 19" rack requiring only 1-3/4" of vertical space. Rack Mount Shelf Assembly P/N 21075501 mounts one, two or three units.
strapping their chassis together. CAUTION! The outer shell of the DC interconnect cables is positive relative to the chassis. Do not allow a DC cable plugged into a powered unit to hang loose where it might short against the chassis or rack frame. MAINTENANCE There is no routine maintenance required.
SWITCH MAINTENCE The front panel MIC/LINE switches have good wiping contacts and should need little attention. The switches are sealed and impossible to clean. In addition, most spray solvents will wash out the internal lubricant and cause premature mechanical failure. A good fix, if the switches get noisy, is to sit down at the unit, think about your girl friend for a while (or Britney Spears or Madonna, depending on your age bracket) and push those little red buttons about 500 times each.
PERFORMANCE SPECIFICATIONS OUTPUT LEVEL: +22dBm MAX, +4dBm Nominal into 600 ohm balanced or unbalanced lines. Output is selectable +4dBm (Line) or -50dBm (Mic). FREQUENCY RESPONSE: +0/-.5dB 20Hz to 20kHz FILTERS (MX101 only): Switchable low cut filters -15dB @ 20 Hz, -3dB @ 125 Hz DISTORTION: .
CUE (Director Input): MX101 only: Unbalanced -10dBu, 2.5 mm T-S jack. POWER SUPPLIES: WA100-1 Wall mount power supply (UL), 24VDC @ .4amp, 115 VAC/60 Hz, included as standard WA100-2 Wall mount power supply for international use, 90-264VAC input via interchangeable connectors, 24VDC @ .
battery charger operating at 115VAC/60 Hz PPA-2 Same as above except battery charger operating at 230VAC/50 Hz; Euro-plug; Contact factory for other plug configurations PPA-B Extra 24VDC rechargeable gel-cell battery pack, charger not included DCA100-1 Integrated DC/DC converter, mounts to the mixer and accepts external battery power with DC inputs from 6 to 18 volts to produce 24VDC mixer power; four-pin XLR battery connector BBU100-1 Battery Pack, houses four 9V alkaline or lithium batteries (not i
One Year Limited Warranty ATI warrants this product to be free from defects in materials and workmanship to its original owner for a period of one year from date of purchase. ATI will repair or replace such product or part thereof, which upon inspection by ATI, is found to be defective in materials or workmanship. The Proper Return Authorization Number must be obtained from ATI in advance of return. Contact ATI at 856-626-3480 or email sales@atiaudio.
