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32-3008.fm Page 1 Thursday, April 6, 2000 4:03 PM
SSM-1750 4-Channel
Stereo Audio Mixer
Owner’s Manual
Please read before using this equipment.
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32-3008.fm Page 2 Thursday, April 6, 2000 4:03 PM Contents Features .................................................................................................................................. 4 Preparation ............................................................................................................................. 6 Presetting the Controls ...................................................................................................... 6 Connecting the Outputs ..
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32-3008.fm Page 3 Thursday, April 6, 2000 4:03 PM Care ....................................................................................................................................... 14 Replacing the Fuse ......................................................................................................... 14 Troubleshooting ................................................................................................................... 14 Specifications .........................
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32-3008.fm Page 4 Thursday, April 6, 2000 4:03 PM Features Your RadioShack 4-Channel Stereo Audio Mixer is a sophisticated control center, perfect for mixing sound from multiple playback sources such as a microphone, tuner, CD player, turnta- ble, or the audio output from a VCR. It is ruggedly constructed for home or professional use and its wide-range volume controls let you adjust sound levels to achieve the right mix for playing through your speaker system or for recording. The mixer's
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32-3008.fm Page 5 Thursday, April 6, 2000 4:03 PM 9 Assign Controls— let you select the in- 15 MASTER — adjusts the overall volume of put sources to be mixed. DJ MIG, AUX, CH1, CH2, CH3, CH4, RE- CEIVE input, and sound effects. 10 CROSS FADER — lets you smoothly switch between two input sources. 16 MONO/STEREO Selector — lets you set the output to stereo or monaural. 11 SOUND EFFECT — let you create a spe- cial sound performance using the six 17 POWER — turns the mixer on and off. preprogram
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32-3008.fm Page 6 Thursday, April 6, 2000 4:03 PM Preparation PRESETTING THE CONNECTING INPUTS CONTROLS You can connect up to ten audio input sourc- es (such as cassette tape decks, CD players, Warning: A sudden high output from the tuners, two magnetic-cartridge turntables, a mixer could damage your hearing, especially camcorder or a VCR) to the mixer’s input if you use headphones, and might also dam- jacks on the back panel. You can also con- age the audio devices connected to the mix-
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32-3008.fm Page 7 Thursday, April 6, 2000 4:03 PM Connecting Microphones CONNECTING HEADPHONES You can connect two microphones (not sup- plied) to the mixer. To listen in privacy or monitor the audio source inputs so you can locate an exact Connect a microphone with an XLR plug to passage or section before mixing it, connect DJ MIC on the top panel’s upper left corner. a pair of stereo headphones (not supplied) 1 with a /4-inch (6.35 mm) plug to the PHONES 1 Connect a microphone with a /
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32-3008.fm Page 8 Thursday, April 6, 2000 4:03 PM 6. After you finish mixing, turn down the Notes: volume on the output audio devices, turn • If you did not connect an input source to off the input and output audio devices every jack or do not want to mix every (amplifiers, tape decks, and so on), then input source connected to the mixer's press POWER so it pops up to turn off input jacks, you do not need to preset the mixer. The POWER indicator turns every channel input. Decide which off. s
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32-3008.fm Page 9 Thursday, April 6, 2000 4:03 PM Notes: Notes: • If it was necessary to set the channel • If it was necessary to set DJ MIC LEVEL volume level slide control to 10 to get a or AUX LEVEL all the way to 10 in order reading of up to 0 on the VU meter, then to get a reading of up to 0 on the VU slide it down to about 8 and adjust the meter, then turn it down to about 8 and GAIN control to get a reading of up to 0 adjust the DJ MIC GAIN control to get a on the VU meters. (See “Usin
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32-3008.fm Page 10 Thursday, April 6, 2000 4:03 PM Important: Note the AUX LEVEL setting, To avoid sudden and inaudible sound out- so each time you want to mix that puts from any audio devices that you con- source you can set the control to the nect to the mixer, be sure to set their power correct setting. controls to off and any tone controls to flat. Notes: Playing One Input Source • If it was necessary to set the AUX LEVEL 1. Set ASSIGN A to the desired source, control to 10 to get a read
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32-3008.fm Page 11 Thursday, April 6, 2000 4:03 PM 4. Set the desired channel volume level • To mix any two inputs selected by the slide control to the preset position. ASSIGN switches, set each ASSIGN switch to the desired channel. Then use 5. Adjust CUE LEVEL to a comfortable lis- CROSS FADER to mix the two. tening level. • Do not slide CROSS FADER to the center 6. Start playback of the input source you if you want to monitor one channel while want to play next through your sound the othe
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32-3008.fm Page 12 Thursday, April 6, 2000 4:03 PM Note: We recommend you not adjust the Using TALKOVER GAIN controls after you have preset the in- To use the microphone and reduce other au- puts as some sound imbalance could occur. dio inputs so the microphone can be heard more clearly, set TALKOVER to ON. Setting the Sound Balance To turn off TALKOVER, set TALKOVER to BALANCE lets you adjust the sound balance OFF. All the audio inputs including DJ MIC between the left and right speakers
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32-3008.fm Page 13 Thursday, April 6, 2000 4:03 PM The echo is applied to the sound before all Playing Input Signals through the the inputs are mixed. Sound Effect Device Set ECHO to MIC to turn on the echo effect You can play inputs selected by the channel for the microphones and the AUX LINE input. selectors, DJ MIC, or AUX through other sound effect devices connected to the mixer, Set ECHO to MUSIC to turn on the echo effect such as an echo reverb or a digital sampler for Channels 1, 2
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32-3008.fm Page 14 Thursday, April 6, 2000 4:03 PM Care To enjoy your mixer for a long time: REPLACING THE FUSE • Keep the mixer dry. If it gets wet, wipe it Your mixer requires a 250-volt, 0.5-amp fuse dry immediately. to protect it from power surges and short cir- • Use and store the mixer only in normal cuits. If the mixer suddenly turns off or will temperature environments. not turn on, the fuse could be blown. Replace the fuse with a 0.5-amp, 250volt, fast-acting, • Handle the mixer g
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32-3008.fm Page 15 Thursday, April 6, 2000 4:03 PM Problem Possible Solution You are getting a hum from other Make sure there are no low-level inputs connected to the LINE input input source jacks. You are getting feedback noise. Move the microphone further away from the output speakers or use a unidirectional microphone. Specifications Input Sensitivity/Impedance DJ MIC (XLR jack) ............................................................. 1.5 mV, 600 ohms, Balanced/Unbalanced AUX MIC
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32-3008.fm Page 16 Thursday, April 6, 2000 4:03 PM Limited One-Year Warranty This product is warranted by RadioShack against manufacturing defects in material and workman- ship under normal use for one (1) year from the date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra- dioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
