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Need Infinity BU-150 schematic (amplified bass spkr) - to be used in a church. Must increase the lowest frequency.

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  • David Dunn
    David Dunn Mar 18, 2011

    When you say increase, do you mean more volume/gain? Why don't you get an equalizer instead of doing surgery and modifications that may not have the desired result? Or get more subs to move more air. Or place it near a corner. This a home speaker, not a church speaker. It has limitations.

    Register and download the users manual for free audio.manualsonline.com
    http://audio.manualsonline.com/manuals/m...

  • jharmon646 Mar 18, 2011

    Thanks.

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  • 54 Answers

I think this model is similar with ES150. you can refer schematic of ES150

Posted on Mar 18, 2011

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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...

2 Answers

Bought new Infinity 8" speaker


hook them up and play something,, the speaker should bounce "out" on bass sounds, if it pulls "in" switch the wires

May 04, 2011 | Infinity BU-1 Speaker

1 Answer

Is it possible to hook up 2-6x9 and 2-12in.subs to the 7540a and still pack a nice punch


yes it is however the hookup for it requires something a bit unorthodox

you have 4 outputs (bridgeable)

channel 1 and 2 must be bridged (to lower the ohms) then connected to the 2 6X9 in Parallel..
this must then be set to the high pass frequency (eliminates bass)
lower all the settings as low as possible then turn them up slightly to increase volume to a level where its the hardest and clean sounding..lower volume after

this eliminates the bass and keeps the 6x9 pushing your mid range and high range frequency

now you have 2 channels remaining,, set 3 and 4 to low pass and connect each 12" to an individual channel. (this keeps the bass and ohms high so you will get a clean bass to match with mids and high's. Dont set or bridge for a low bass as it will jam out the 6x9 and your music will sound terrible.

so there u have a simple hookup that will work and keep you sounding clean. remember not to raise the volume on the 6X9 too much as you will blow them..

Mar 29, 2011 | Infinity 7540A Car Audio Amplifier

2 Answers

Thanks for the answer - If we have 3 controls as Bass, Mid and Treble. If we keep those in 12 O Clock position, will the output level be equal. In using the Bass and Treble control only (if we have...


If all are in 12 o'clock position they are "flat" (nothing has been added or subtracted foam input signal) If you only have bass & treble, yes adjusting will affect "mids" but Mids change can go both ways dependent on increase or decrease of Bass and /or treble. By increasing bass you will pull some mids up also. By increasing treble you'll subtract some mids.

Mar 17, 2011 | Audio Players & Recorders

1 Answer

Is the bass boost the gain or frequency knob?


Bass boost simply adds DB or gain to the bass signal. Some like it, some dont.
The frequency knob is the Low Pass Filter (LPF) that cuts off the amp output above
the set frequency. A bass system usually cuts off below 400 HZ and more often 200HZ.
A good, rattle your car bass note is in the 25-80HZ range or lower but most amps and audio
input devices cant attain a good low note with clarity.
"Low-pass filter allows only frequencies below the crossover point to be amplified. A high-pass filter allows only frequencies above the crossover point to be amplified - useful for keeping low bass away from small speakers, so they can play more efficiently."
Checkout Crutchfields Glossary of Car Amps.
http://www.crutchfield.com/S-LPyoWWgD5qN/learn/learningcenter/car/amplifiers_glossary.html

Mar 14, 2011 | Rockford Fosgate Car Audio & Video

1 Answer

Volfenhag amp adjustments


Firstly, you will want to set all options to a low pass, so the high frequencies are filtered away from the subs, avoiding damaging the voice coil. Start with the Gain of the amp about 3/4 of the way up, and all other knobs, such as the bass knob to the lowest setting. From there, test your subs for soujnd, and then change the gain and amount of bass for the sound you desire, since each person is different. I have my gain about 1/2 way up and the bass about 1/4 of the way up. If you have a crossover knob, set it to the highest frequency available, since the low pass will filter all the high frequencies out anyway.

Sep 23, 2009 | Volfenhag ZX-5007 Car Audio Amplifier

1 Answer

How do I use this amplifier to amplify an ipod?


minimize ur ipod volume to the lowest & disable bass boost or lower the bass in the ipod,control vol by the amps knobs,play higher kbps songs on amp

Jul 09, 2009 | Alesis RA-150 Amplifier

1 Answer

Infinity BU-150 has deep hum soon as plugged in


most likely it's your signal cable. You might first try plugging the sub into the same power outlet as the preamplifier, if it is not already.

Good luck,
BB

Jan 06, 2009 | Infinity BU-150 Speaker

1 Answer

Polk subwoofer making crackling noises


Yea, now its time to replace it! the magnetic effect is weaken which makes the very bass low frequency sound to be distorted! You should re engergise the magnet of the subwoofer or should buy the new!

Dec 08, 2007 | Infinity BU-120 Subwoofer

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