Boss Audio Systems Pre-AMP EQ
Contents
1. desired AVA1202 User s Manual page 3 Installation Before installing your new 3955 equalizer please become familiar with all the information contained in this manual Choose a mounting location where the unit will not distract or otherwise interfere with the driver s ability to control the vehicle Use only the installation parts and hardware provided with the unit to ensure proper installation Using other parts can cause malfunction and possible damage to your BOSS equalizer Avoid installing the unit in a location which is subject to high temperatures direct sunlight hot air from such sources as heaters or exhaust lines or where it will be subject to contact with dust dirt moisture or excessive vibration AVA1202 User s Manual page 4 Mounting the equalizer The AVA1202 is designed to be installed to the underside of your vehicle dashboard or other similar surface using the screws and brackets provided Install the unit securely according to the diagram below 8 Angle brackets Turning on the power The AVA1202 has internal ON OFF circuitry which responds to turning ON or OFF the head unit of your car audio system This reguires that your head unit have a remote turn on lead available on the rear panel which most head units have With this convenient remote turn on off feature you never have to worry about turning off the power to the egualizer when you shut off the audio system2. 3095 AUDIO SYSTEMS AVA1202 7 Band Egualizer with LED Power Meter Congratulations on your purchase of a 3085 Equalizer It has been designed engineered and manufactured to bring you the highest level of performance and quality and will afford you years of listening pleasure Thank you for making SS your choice for car audio AUDIO SYSTEMS entertainment page USER S MANUAL CONTENTS vn OO G R Bh ON How an equalizer is used System application Front panel controls and features Installation Mounting the equalizer Audio connections Power connection Specifications AVA1202 User s Manual page 1 How an equalizer is used The 3953 AVA1202 graphic equalizer is a high fidelity signal proces sor preamplifier that allows you to graphically view and individually control a number of different frequency bands in a stereophonic system It is intended for use in a car audio system which includes amplifiers in the signal path AFTER the egualizer and provides Front Rear and Subwoof er LOW LEVEL outputs via RCA con nectors This graphic egualizer consists of sev eral audio filters each centered at a specific freguency in the audio range The AVA1202 enables you to cut or boost the output level by up to 12dB as desired at the following freguencies 60Hz 150Hz e 400Hz 1kHz 3kHz 6kHz e 15kHz The AVA1202 also features a bass en hancement circuit called X BASS This allows you
3. Setting system power output levels The AVA1202 does not have Volume Level controls Therefore all of your audio system level controls are made at the head unit Audio connections Review the diagrams on the next two pages and connect the unit as shown Using Line Level inputs OUTPUTS INPUTS FRONT REAR M D gt To OUTPUTS of RADIO gt head unit To FRONT c II Audio Inputs of AMPLIFIER lt III To REAR c Audio Inputs of AMPLIFIER JI CAUTION Use Low Level RCA inputs OR High Level speaker inputs not BOTH Using High Speaker Level inputs OUTPUTS INPUTS FRONT REAR RL RL R L To FRONT c JI Audio Inputs of AMPLIFIER III To REAR c Audio Inputs of AMPLIFIER lt I YELLOW L To SPEAKER OUTPUTS _ YELLOW BLACK of RADIO head unit GRANGE R R ORANGE BLACK AVA1202 User s Manual page 5 Power connections Please note that this equalizer contains an internal ON OFF switch which is activated when the head unit is turned on For this reason in order to use this equalizer your head unit must have a remote turn on lead mm AVA1202 User s Manual page 6 Chassis ground point FUSE VIOLET to REMOTE TURN ON terminal of head unit Source ground point Specifications AVA1202 3095 AUDIO SYSTEMS 7 Band Equalizer with LED Power Meter EQ center frequencies Equalization range Frequency r
4. esponse Signal to noise ratio EQ THD Channel separation High level input voltage Low level input voltage Defeat equalizer Power supply Output voltage 60Hz 150Hz 400Hz 1 kHz 3 kHz 6kHz 15kHz 12dB boost cut 20Hz 20kHz 60dB less than 0 05 45dB 4V 0 5v OdB 1dB 10 16V negative ground 1 5V All specifications subject to change without notice AVA1202 User s Manual page 7 Notes BOSS AUDIO SYSTEMS
5. to add additional emphasis to the bass frequencies in the audio spectrum AVA1202 User s Manual page 2 System application The AVA1202 is intended for use in a car audio system which includes amplifiers in the signal path AFTER the equalizer The input signal can be applied from either low level RCA or high level speaker level outputs from your head unit The user adjusts the various boost cut levels at the desired fre quencies The resulting adjusted sig nal is then distributed from the Front and Rear stereo RCA jacks on the rear of the unit to an amplifier for each of these channel pairs Front panel controls and features 1 LED LEVEL METER 2 BOOST CUT CONTROLS Each of these controls represents a range of freguencies surrounding a center freguency to cover the audio spectrum from subwoofer freguencies to treble freguencies Adjust these controls to suit your taste and listening environment Each center freguency can be adjusted 12 dB EQ ON OFF SELECTOR This button permits you to turn on and off the equalization provided by the AVA1202 poo o o 0000 oooo 0000 boot ba 0000 0000 X BASS PROCESSOR ON OFF The AVA1202 features a bass enhancement circuit called X BASS Use this when you want to emphasize the bass portion of your audio FADER Use this control to balance the sound level between front and rear speakers as
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