Tip & How-To about Car Audio & Video

Car Amplifier Installation

Mounting your Amplifier The mounting position of your amplifier will have a great effect on its ability to dissipate the heat generated during normal operation. It has an ample heat sink for heat dissipation, and also designed with a thermal shut-down protection circuit ( most amplifiers) making it reasonably tolerant of mounting variations. Any configuration with allows moving air to be directed over the cooling fins will improve heat dissipation dramatically, DO NOT enclose the amplifier in a small box or cover it so that air cannot flow around the heat sink fins. Temperature in car trunks have been measured as high as 175 F ( 80 C) in the summer time, since the thermal shut down point for most amplifiers is 185 F (85 C), it's easy to see that it must be mounted for maximum cooling capability. To achieve maximum advantage of convection air flow in an enclosed trunk, mount the amplifier in a vertical position, on a vertical surface. Cooling requirements are considerably relaxed when mounting inside the passenger compartment since the driver will not often allow temperatures to reach a critical point. Floor mounting under the seat is usually satisfactory as long as there is at least 1 inch (2 cm) above the amplifier's fins for ventilation.

  1. Select a suitable location that is convenient for mounting, is accessible for wiring, and has ample room for circulation and cooling.
  2. Use the amplifier as a template to mark the mounting holes, remove the amplifier and drill as much holes as required , USE EXTREME CAUTION, INSPECT UNDERNEATH THE SURFACE BEFORE DRILLING.
  3. Secure the amplifier using the proper screws.

Please rate the tip if it helped you in anyway, thanks.

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1 Answer

Why does my jvc house amplifier gets so hot ,I can't even touch the top ,it actualy burns me, is this normal?


Nop, you have to check the correct air flow from down to top with nothing interfering the top at least 4 inch between amp and next thing up the amp, take away of near heat sources in every possible way, hope this helps, also check the speaker impedance to match with amplifier...this last part is a great source of heat, believe me...speakers should be 8Ohm, and anything less will put the amp under stressful situation generating lots of heat...

Oct 12, 2013 | Car Audio & Video

1 Answer

need schematic diagram infinity basslink subwoofer


Design: The BassLink brings together a 10" subwoofer (treated paper cone, foam surround), a 10" passive radiator (to increase efficiency and limit distortion), and an extremely efficient, specially designed 200-watt Class D amplifier that work as an integrated system. Special circuitry monitors voice coil position to maintain linearity at high power levels, so you hear loud, clear bass.

Enclosure Type and Materials: The enclosure is made of an acoustically inert polymer which is rigid enough to resist flexing and dampens any resonance.

Servo-Control: The servo-control system continually monitors the performance of the speaker and ensures that the amplifier delivers exactly the right amount of power.

Class D Amplifier: This unit has a built-in 200 watt Class D amplifier which is highly efficient and designed specifically for use with the subwoofer and passive radiator combination.

Auto Turn-On Feature: When the speaker level inputs are used, the system will automatically turn on and off with the radio. Note: The auto turn-on feature does not operate when the preamp level inputs are used, unless the remote turn-on lead is connected.

Low-Pass Crossover: The low-pass crossover frequency can be varied from 50Hz to 120Hz for a seamless transition between the output of this unit and that of the other speakers in the vehicle. The crossover has a slope of 12dB per octave.

Bass Boost: The amplifier includes a continuously adjustable bass boost from -6 to +3dB centered at 40Hz.

Phase Switch: Allows you to select normal or reverse for best bass.

Mounting: You will be able to put BassLink in a variety of in-vehicle locations, thanks to its compact size and mounting feet that enable the rigid polymer box to be mounted vertically or horizontally.

Vertical Mounting Dimensions:
Width: 14.625"
Height: 13.375" (including feet)
Depth: 8.675" (10.076" including feet)
Horizontal Mounting Dimensions:
Width: 14.625"
Height: 9.5" (including feet)
Depth: 12.75" (15.1875" including feet)

BassLink LC Remote Level Control

Overview: The BassLink LC allows you to adjust the volume of BassLink powered subwoofer.

Installation: The BassLink LC may be mounted under the dash or may be dismantled and mounted inside the dash for a factory appearance.

Under-dash Mounting: Select a mounting location that allows easy, safe access to the control while driving. The BassLink LC has mounting "ears" to use as a template for drilling pilot holes. Attach screws through the "ears" to secure the BassLink LC to the mounting surface.
In-dash Mounting: Disassemble the BassLink LC by removing the Phillips-head screws on the front, rear, and top panels. Remove the bottom and side panels and disengage the RJ11 connector from the back panel. Choose a mounting location that allows easy, safe access to the control, and provides 1-3/4" clearance behind the mounting surface. Drill a 9/32" hole in the mounting surface. Feed the BassLink LC's potentiometer (with the knob removed) through the hold and use the nut provided to hold the control in place.
Connecting to BassLink: Route the cable behind the dash or other interior panels and under the carpet. Do not route the cable outside the vehicle. Connect the cable on both ends.

Inputs and Controls

Inputs:

Universal Interface: Front and rear, left and right Universal interface speaker-level inputs (for use with the supplied speaker-level input wiring harnesses)
Line Level RCA Inputs: Front and rear, left and right female preamp level inputs
+BATT (+12V): Gold-plated screw terminal, 0.350" wide
REM (remote turn-on): Gold-plated screw terminal, 0.350" wide
GND (ground): Gold-plated screw terminal, 0.350" wide
Fuse: There is an installed 20 Amp fuse
Remote Gain Control: Phone type jack for included remote gain control

Controls:

Gain Control: Rotary control that sets gain (variable from 250mV to 4V)
Crossover Control: Rotary control that sets the low-pass crossover point (variable from 50 to 120Hz)
Bass Boost Control: Rotary control that sets bass boost level (variable from -6 to +3dB, centered at 40Hz)
Phase Switch: Selects normal or reverse phase (0 or 180 degrees)
Power LED: The power LED glows red when the BassLink is on
Servo LED: The Servo LED glows green when the servo circuit has determined that the woofer has reached maximum excursion and power to the woofer has been modified to provide maximum performance. The LED should light momentarily during high-level bass transients. Note: Avoid adjustments that cause the LED to remain lit for an extended period of time


Thanks

Apr 01, 2012 | Infinity Bass Link Subwoofer Car Audio...

1 Answer

amp gets hot


Check your speakers to make sure that they are the proper Ohmic value, and make sure your grounds are secure.

The unit is dissipating too much heat which is a sign of an impedance mismatch. In other words the full power output is not being delivered to the load (speakers), rather it is being dissipated in the source (amplifier) which as said is a sign of an impedance mismatch.

Thank you,
I hope this helps
Shuttle83

Jan 26, 2008 | Cerwin Vega XL 600.1 Car Audio Amplifier

1 Answer

No sound when first turned on.


i have an amplifier ONKIO too and my generation is older than yours but i'm the same probleme and it's normal if you use this amplifier to your speakers. the internal switch must be heat to give a normal sound without distorsion. it's the principal problem of the onkio amplifier but after the quality of thr sound is great
so take the time and be patient now you know you have to start on your amplifier 5mn before use :)

Jan 18, 2008 | Onkyo TX-SR502 Receiver

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