Summary of Contents for Optimus 12-1978
- Page 1 12-1978.fm Page 1 Tuesday, July 13, 1999 10:31 AM Cat. No. 12-1978 OWNER’S MANUAL Please read before using this equipment. Stereo 7-Band 4-Channel Equalizer Under Dash...
- Page 2 12-1978.fm Page 2 Tuesday, July 13, 1999 10:31 AM FEATURES Your Optimus 7-Band 4-Channel Two Types of Inputs — let you use Equalizer is designed to give you ex- the equalizer with an autosound sys- cellent control over the sound pro- tem that has line-out jacks or that has duced by your autosound system.
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Page 3: Table Of Contents
12-1978.fm Page 3 Tuesday, July 13, 1999 10:31 AM CONTENTS Installation ......................4 Supplied Hardware ..................4 Choosing a Mounting Location ............... 4 Installation Guidelines ..................5 Connecting the Input Source ................6 Using the Autosound System’s Line-Out Jacks ........6 Using the Autosound System’s Speaker Wires ........ -
Page 4: Installation
12-1978.fm Page 4 Tuesday, July 13, 1999 10:31 AM INSTALLATION SUPPLIED HARDWARE The following items are supplied with the equalizer. Be sure you locate these items before you throw away the packing materials. Short Machine Screws (4) Small Sheet Metal Screws (2) -
Page 5: Installation Guidelines
12-1978.fm Page 5 Tuesday, July 13, 1999 10:31 AM INSTALLATION 3. Connect the input source. GUIDELINES • If your autosound system has line-out jacks, see “Using the To make sure your equalizer works Autosound System’s Line-Out properly with your autosound system, Jacks”... -
Page 6: Connecting The Input Source
12-1978.fm Page 6 Tuesday, July 13, 1999 10:31 AM CONNECTING THE INPUT SOURCE Using the Autosound System’s Line-Out Jacks If your autosound system has line-out jacks, use shielded audio cables with left and right phono connectors to make these connections. -
Page 7: Using The Autosound System's Speaker Wires
12-1978.fm Page 7 Tuesday, July 13, 1999 10:31 AM Using the Autosound System’s Speaker Wires If your autosound system has only speaker output wires and does not have line-out jacks, use wire twist connectors to make these connections. Note: If your autosound system has line-out jacks, connect your equalizer to them instead (see “Using the Autosound System’s Line-Out Jacks”... -
Page 8: Connecting Output Amplifiers
12-1978.fm Page 8 Tuesday, July 13, 1999 10:31 AM CONNECTING OUTPUT AMPLIFIERS Using Your Autosound System’s Amplifier If your autosound system also has line-in jacks so you can use it as the speaker amplifier, use shielded audio cables with left and right phono connectors to make this connection. -
Page 9: Using Separate Amplifiers
12-1978.fm Page 9 Tuesday, July 13, 1999 10:31 AM Using Separate Amplifiers Your equalizer has three pairs of line-level phono output jacks that let you connect it up to three amplifiers (front, rear, and subwoofer). These connections require shielded audio cables with phono connectors. -
Page 10: Connecting Power
12-1978.fm Page 10 Tuesday, July 13, 1999 10:31 AM CONNECTING POWER (illus – show the equalizer’s power, remote, and ground wires with labels to the appropri- ate sources, and show audio cables connect- ed to all the equalizer’s input and output jacks with labels to the appropriate destinations or 1. -
Page 11: Testing The Connections
12-1978.fm Page 11 Tuesday, July 13, 1999 10:31 AM TESTING THE Before you mount the equalizer, you need to set the 80/120/160 crossover CONNECTIONS switch on the back of the equalizer. Turn on your vehicle’s ignition, then follow Steps 1-4 of “Operation” on Page 15 to test the equalizer. -
Page 12: Mounting The Equalizer
12-1978.fm Page 12 Tuesday, July 13, 1999 10:31 AM MOUNTING THE EQUALIZER After you complete all the connections and test the equalizer, follow these steps to mount the equalizer. (il- 1. Disconnect the cable from the 4. Remove the mounting brackets vehicle battery’s negative (–) ter-... -
Page 13: Connecting Aportable Cd Player
12-1978.fm Page 13 Tuesday, July 13, 1999 10:31 AM 7. Using the supplied machine screw 1. Set the CD player’s and your and washers, attach the metal autosound system’s volume con- strap to the back of the equalizer. trols to their lowest settings. - Page 14 12-1978.fm Page 14 Tuesday, July 13, 1999 10:31 AM 5. If you connected the equalizer’s output to your autosound system’s line-in jacks, set the CD player’s volume control to the highest set- ting and adjust your autosound system’s volume as desired.
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Page 15: Operation
12-1978.fm Page 15 Tuesday, July 13, 1999 10:31 AM OPERATION TURNING THE USING THE FADER EQUALIZER ON AND CONTROL Rotate to adjust the balance FADER between front and rear speakers. 1. Set the autosound system’s vol- ume to its lowest setting. -
Page 16: Using The Equalizer Controls
12-1978.fm Page 16 Tuesday, July 13, 1999 10:31 AM USING THE EQUALIZER USING THE CONTROLS SUBWOOFER LEVEL CONTROL Set the autosound system’s treble and bass controls (or tone control) to the center position. Then adjust the equal- izer’s controls for the desired sound. -
Page 17: Care And Maintenance
12-1978.fm Page 17 Tuesday, July 13, 1999 10:31 AM CARE AND MAINTENANCE Your Optimus 7-Band Rotary Control Passive 4-Channel Equalizer with Subwoofer Crossover is an example of superior design and craftsmanship. The following sug- gestions will help you care for your equalizer so you can enjoy it for years. -
Page 18: Replacing A Fuse
12-1978.fm Page 18 Tuesday, July 13, 1999 10:31 AM REPLACING A FUSE 3. If the fuse is blown, replace it with a standard 1 ¥ inch, 1 amp, fast-acting fuse (such as Cat. No. • If the autosound system does not 270-1005, not supplied). -
Page 19: Specifications
12-1978.fm Page 19 Tuesday, July 13, 1999 10:31 AM SPECIFICATIONS Center Frequencies ..... 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.4 kHz, 6 kHz, 15 kHz Frequency Response ...........20–20,000 Hz (at ±3 dB, 400 mV) Input Level, Front/Rear (for 400 mV Output) High Impedance ..................400 mV... - Page 20 12-1978.fm Page 20 Tuesday, July 13, 1999 10:31 AM RadioShack Limited Warranty This product is warranted against defects for 1 year from date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and deal- ers. Within this period, we will repair it without charge for parts and labor. Simply bring your RadioShack sales slip as proof of purchase date to any RadioShack store.