User’s Manual MIX 301 3-channel Audio Mixer Extron USA - West Headquarters +800.633.9876 Inside USA / Canada Only +1.714.491.1500 +1.714.491.1517 FAX Extron USA - East Extron Europe Extron Asia Extron Japan Extron China Extron Middle East +800.633.9876 +800.3987.6673 +800.7339.8766 +81.3.3511.7655 +81.3.3511.7656 FAX +400.883.1568 +971.4.2991800 +971.4.2991880 FAX +1.919.863.1794 +1.919.863.1797 FAX +31.33.453.4040 +31.33.453.4050 FAX +65.6383.4400 +65.6383.
Precautions Safety Instructions • English This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product's enclosure that may present a risk of electric shock. Caution Read Instructions • Read and understand all safety and operating instructions before using the equipment.
FCC Class A Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
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Introduction The MIX 301 is a three-input, one-output VersaTools™ line level audio mixer.
Installation and Operation, cont’d Installation and Operation Mounting the MIX 301 The MIX 301 can be set on a table, mounted on a rack shelf, mounted on the back of the rack, mounted under a desk or table, or installed on a projector mount. Tabletop use The MIX 301 comes with four, self-adhesive rubber feet (not attached). Follow these instructions for a tabletop installation: 1. Attach the rubber feet to the underside of the MIX 301 near the corners of the unit. 2.
Rack installation The MIX 301 can be rack mounted using either the RSF 123 VersaTools 19" 1U rack shelf (Extron part #60-190-20), the RSB 123 basic VersaTools rack shelf (Extron part #60-604-20), an RSU 129 standard universal 1U rack shelf (Extron part #60-190-01), or an RSB 129 1U basic rack shelf (Extron part #60-604-01). Figure 1 shows the VersaTools rack shelf, and figure 2 shows a standard rack shelf.
Installation and Operation, cont’d DIST RIBU TIO N AM PL IFI ER M DIS DA TR IBU SE R TIO N AM IES PL IFIER Figure 2 — Mounting the MIX 301 on a standard 1U rack shelf Back of the rack installation The MIX 301 can be conveniently mounted on the rear of a rack by using the Extron MBB 100 back of the rack mounting kit (Extron part #70-367-01). The back of the rack mounting kit allows the MIX 301 to be vertically positioned. 1.
L BUC 102 L R UNBAL ON SPARE 1 2 R BAL BAL/UNBAL INPUTS BAL/UNBAL OUTPUTS AUDIO BAL/UNBAL CONVERTER POWER 12V 0.2A MAX IR 1 2 + 3 R INPU + TS L 4 5 6 7 8 1 2 3 OU 4 TP UT S 5 6 7 8 EN TE R PR ES ET AV VID AU D MAV MA TR SE I/O IX SW RIE ITC S HE R +d B -d B AU DIO SE TU P Furniture/Projector mounting Use the optional MBU 123 mounting kit (furniture, part #70-212-01, or the PMK 100 projector pole mount kit, part #70-217-01) to mount the MIX 301, as follows.
Installation and Operation, cont’d a. Hold the unit against the underside of the table or other furniture, and mark the locations for four screws (two screws per bracket) on the mounting surface. b. At each mark, drill a 3/32" (2 mm) diameter pilot hole approximately 1/4" (6 mm) deep in the mounting surface. c. Insert #8 wood screws into the four pilot holes. Tighten each screw into the mounting surface until just less than 1/4" (6 mm) of the screw protrudes. d.
Rear Panel Features and Cabling MIX 301 3 5 IN 1 IN 3 IN 2 MIX OUT 4 6 3 CHANNEL MIXER 1 12V 0.5a MAX 2 Figure 3 — MIX 301 rear panel Captive screw power input connector — Connect the included 12 VDC external power supply into the 2-pole 3.5 mm captive screw connector. Be careful to observe the correct polarity.
Installation and Operation, cont’d The blue connector does not have the extended tail or the included tie-wrap. Do not tin the power supply leads before installing in the direct insertion connector. Tinned wires are not as secure in the connectors and could be pulled out. After making any adjustments to the MIX 301, either via the front panel controls, SIS commands, or the Extron Audio Products Control Program, wait at least 10 seconds after making those changes before disconnecting power to the MIX 301.
Do not tin the connector leads before installing them in the connector. Tinned wires are not as secure in the connectors and could be pulled out. For further wiring details, see the included “Cable Preparation For Audio Connections” card. CAUTION For unbalanced audio, connect the sleeve(s) to the ground. DO NOT connect the sleeve to the negative (-) contact.
Installation and Operation, cont’d Front Panel Features 1 1 2 1 2 3 MTP SERIES 3 4 Figure 4 — MIX 301 front panel 2 3 1 Power LED — Lights green to indicate that the MIX 301 has power. 4 Input channel audio gain controls — Adjusts the audio input gain for each input. The gain is adjusted by rotating the screw and the adjustment range is from mute (fully counterclockwise) to +20 dB (fully clockwise). See the note below.
Reference Information Specifications Audio Gain ................................................ Adjustable per input. When all three gain potentiometers are set to 12 o’clock, the gain is as follows: Unbalanced output: -6 dB Balanced output: 0 dB Frequency response .................... 20 Hz to 20 kHz, ±0.05 dB THD + Noise ................................. 0.05% @ 1 kHz at nominal level S/N ................................................ >90 dB, balanced, at maximum output (unweighted) CMRR ..............
Reference Information, cont’d Temperature/humidity .............. Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing Rack mount .................................. Yes, with optional 1U rack shelf, part #60-190-01 or 60-604-01; or VersaTools® rack shelf, part #60-190-20 or 60-604-20; or the Back of the Rack Mounting Kit #70-367-01.
Parts List Included parts Included parts Part number to reorder MIX 301 60-737-01 Power supply: universal 12 VDC, 1.0 A 70-055-01 3.5 mm captive screw connectors, 3-pole (x4) 10-319-13 3.
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