User manual AMERICAN AUDIO Q-2422 SX

[. . . ] Professional Preamp Mixer Q-2422/SX USER INSTRUCTIONS American Audio 4295 Charter St. Los Angeles, CA 90058 (323) 582-2650 Fax (323) 582-2610 web: www. AmericanAudio. us Revised 2/03 INTRODUCTION Contents Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 2 Electrical Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 4 Quick Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 5 Functions (Front Panel). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 7 Inputs & Outputs (Rear Panel). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 11 Set-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 14 Replacing the Crossfader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 17 Operating Determinations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 17 Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 18 Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 19 Important Precautions 1. Be sure to save the packing carton in case you ever have to return the unit for service. Read all documentation before attempting to operate your new mixer. [. . . ] TALKOVER SWITCH While in the ON position the microphone can be used at any time, while this will not attenuate any other channels. When the switch is in the TALKOVER position, the microphone is hot, meaning that when the microphone is in use all channels attenuate -15dB except the MIC. When the microphone is not being spoken into all channels return to normal . In the OFF position, all signals return to their ©American Audio® - www. AmericanAudio. com - Q-2422/SX User Instructions page 8 FRONT PANEL - CONTROLS AND FUNCTIONS CONT. original level and the microphone is off. CUE MIXING CONTROL This functions allows you to monitor the Cue level as well as the Program (main output) level in your headphones. A channels Cue Level may only be monitored if the channels Cue function is selected. To select a channels cue function depress the CUE BUTTON (7) that is directly associated with the specific channel you wish to monitor. You may use the mixing function to blend both the Cue level and the Program level together. You can vary the output level to either hear more or less of either of the two levels. Sliding the Cue Mixing fader to the CUE position will allow you to hear more of the Cue level. Sliding the knob to the PGM position will allow you to hear more of the Program level (main output). You may also use the Cue Mixing Control to hear either the Cue level or the Program level exclusively. If the fader is in the full CUE position you will only hear the cue level, if the fader is in the full PGM position you will only hear the main output. This function will especially be useful for occasions when an external monitor is not available. CUE LEVEL VOLUME CONTROL This knob is used to control the headphone volume output level. MASTER VOLUME CONTROL This fader is used to control the master output level (main volume). To avoid distorted output try to maintain an average output signal level +4 dB. This fader will control the XLR-BALANCED (28) output jacks and MASTER VOLUME RCA (31) jacks. HEADPHONES JACKS This jack is used to connect your headphones to the mixer. Use head phones only rated at 8 ohms to 16 ohms. Most DJ headphones are rated at 16 ohm, these are highly recommended. Always be sure the CUE LEVEL VOLUME (12) is set to minimum before you put the headphones on. [. . . ] Grasp the crossfader by its base and pull the ribbon cable by its connector not the actual cables. The connector is designed to only fit one way, so don't worry about the connectors orientation. Connect the new crossfader to the ribbon cable and replace in reverse order. ©American Audio® - www. AmericanAudio. com - Q-2422/SX User Instructions page 17 TECHNICAL SPECIFICATIONS Technical Specifications - Model Q-2422/SX Model: Q-2422/SXTM, 2 Channel Mixer Power supply: AC 115/230V, 50/60Hz selectable Dimensions: 19" W x 7" D x 2. 25" H / 482x 176x 65mm Weight: 8. 5 lbs. / 3. 8 kg Crossfader: FF-Plus - Optical detecting faders start control - Low grounding impedance crossfader Power Consumption: 5W typical, 7W w/ full headphone output Headphone impedance: 16 Ohms Input Sensitivity (Level/Impedance): Line: -14dBV (200mV) 12K Ohm +/- 2dB Microphone: -49 dBV (3. 6mV / 3K Ohms +/- 3 dB Phono: -48dBV (4mV) 47K Ohms +/- 3dB Aux: -14 dBV (200mV) / 47K Ohms +/- 2dB Output Sensitivity (Level/Impedance): Rec Out (RCA): -10dBV (316mV) / 2. 2K Ohms +/- 2dB Master Out (RCA): 0dBV (1V) / 610 Ohms +/-2dB Phones (Load+32 Ohms): -8dBV (0. 4V) /33 Ohms +/-2dB Maximum Output (Load = 47K, THD = 5%) Rec: < 18dBV (8V) Master (RCA): < 18dBV (8V) Balanced (XLR): < 18dBV (8V) Channel Balance: Within 3dB Frequency Response: Line: 20Hz - 20KHz, ± 1dB Phono: 20Hz - 20KHz, ± 1. 5dB (RIAA) Aux: 20Hz - 20KHz, ± 1dB Microphone: 20Hz - 20KHz, +1, -3dB THD - Total Harmonic Distortion (1Khz, 0dBV Output): Master Output (Load = 47K Ohms): Less than 0. 2% Phono (Load = 32K Ohms): Less than 0. 5% Channel Equalizer: Bass: +12 ± 1dB, -22 ± 2 dB at 70KHz Mid: +12 ± 1dB, -27 ± 2 dB at 1KHz Treble: +13 ±1dB, -17 ± 2 dB at 13KHz Microphone Equalizer: Bass: +12 ± 1dB, -12 ± 1 dB at 100KHz Treble: +12 ± 1dB, -12 ± 1 dB at 10KHz NOTES: The specifications are subject to change to any improvement by negotiations in advance. 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