Bass booster circuit using suitable commonly available ic for 8 ohms speakers

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rajaram04

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Hello sir

I want a very proper circuit diagram with commonly available components so as to boost up the bass suitable for of 8 ohms speaker within its limit . . thanks
 

You should specify the required RMS power.

For 5W you can use this ckt
 

The circuit posted with the obsolete LM383 power amplifier DOES NOT HAVE BASS BOOST!
With the 9V supply its output at clipping is only 0.8W into 8 ohms.

Here is the bass boost circuit from Silicon Chip magazine:
 

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Audioguru said:
The circuit posted with the obsolete LM383 power amplifier DOES NOT HAVE BASS BOOST!
With the 9V supply its output at clipping is only 0.8W into 8 ohms.

Here is the bass boost circuit from Silicon Chip magazine:
Click to expand...



hmm ya got it kk . . let me refer it . .
 

With most sorts of radios and audio devices the limitations of their bass response is the loudspeaker(s) and its enclosure(s). So unless your loudspeaker and its enclosure is suitably engineered you may be disappointed. What you need is a large loudspeaker to be able to move a large volume of air. Driving a small loudspeaker in a small cabinet will not increase to true bass, but will lead to the cone breaking up and delivering a lot of "false bass" which is actually at twice/three/four times the frequency of the original, but as its related to the music will not be totally unpleasant.
Frank
 




ooooo my god . . i see , actually i am designing for my music composing & editing purpose speacially bass guitars & kick drums but i ve to think again if as per your suggestion this one is peeling out the naturality from the sound then it ll give bad results with a virtual satisfaction to me . . so what to do now for homely designings ?????????? i ve to compose music in a room not outside
 

Bose uses small bass speaker drivers with plenty of bass boost.
My sound system for the beach used a 4" woofer with plenty of bass boost.

The 8" woofers in my home sound like subwoofers with their deep bass boost.
 
Audioguru said:
Bose uses small bass speaker drivers with plenty of bass boost.
My sound system for the beach used a 4" woofer with plenty of bass boost.

The 8" woofers in my home sound like subwoofers with their deep bass boost.
Click to expand...



here the word

bose & beach

means ????????
 

Years ago Bose came out with its compact entertainment unit which featured strong bass.

An electronics genius I once knew saw a diagram of its construction, and he remarked how it appeared to have a maze running around the insides. Very odd-looking.

It was a lengthy sound tube, folded to allow compactness. He said the speaker appeared to be at a location about 1/3 of the way inside the tube. He once did experiments with a speaker inside a long tube. He found a 'sweet spot' where the bass was particular strong, at about the 1/3 position.

Bose had made its design not too different from a ported (or vented) bass speaker cabinet.
 

Very expensive Bose sound systems use cheap little drivers with the bass boosted at about 150Hz where the average stupid consumer thinks is bass.
One of their very expensive speakers used 9 cheap little drivers (one is at the rear) with cheap foam rubber surrounds that rotted away in a few years. The speaker came with an equalizer that boosted the heck out of the bass and treble and its response looked like a "happy face".

Look in Google for "Bose Bashing".
https://obrazki.elektroda.pl/7310464800_1384908877.png
 
I have a Bose FM radio. The bass is good for a cabinet of that size but it "honks", i.e. gives out a high output at one frequency (150 HZ according to Audioguru). My son played a bass guitar and when He went from a guitar practice amp to a Hi- Fi enclosure it made a world of difference to the sound.
rajaram04, You have not said what sort of loudspeaker you have. Are you starting from scratch? Are you rich? . Can you build a cabinet? I think that a very good and free start in this project would be to read up from articles on the net. Try Googling for " loudspeaker enclosure" or such like. Remember for editing/composing you don't need much power, a couple of watts in a decent enclosure, is far more useful to you, rather then 100W in a tiny enclosure.
Frank
 

chuckey said:
it "honks", i.e. gives out a high output at one frequency (150 HZ according to Audioguru).
Click to expand...
Hee, hee. "One Note Bass". In the '70ies it was called a "boom box" because it sounded like a bongo drum.

The first speaker enclosure I built in about 1962 was a disaster but it taught me a lot. The second speaker enclosure I built in about 1966 still plays well and still sounds good. The enclosure is sealed and has a 5" Philips woofer with a REAL rubber surround, low resonance and long throw and a Philips 1" dome tweeter. My crossover network has inductors with thick wire and air cores and the capacitors are film type.
 

Audioguru said:
The circuit posted with the obsolete LM383 power amplifier DOES NOT HAVE BASS BOOST!
With the 9V supply its output at clipping is only 0.8W into 8 ohms.

Here is the bass boost circuit from Silicon Chip magazine:
Click to expand...




nice info all around . . well whats the IC number here above in this circuit ? i am not getting that

- - - Updated - - -

Audioguru said:
The circuit posted with the obsolete LM383 power amplifier DOES NOT HAVE BASS BOOST!
With the 9V supply its output at clipping is only 0.8W into 8 ohms.

Here is the bass boost circuit from Silicon Chip magazine:
Click to expand...




nice info all around . . well whats the IC number here above in this circuit ? i am not getting that


i mean to say in the circuit you alloted me with graph above
 

The IC in the Silicon Chip schematic is clearly shown as the TL074 quad audio opamp that is made by Texas Instruments and many other American IC manufacturers. It is common in North America, Europe and Australia where the magazine comes from.
I designed and made an identical circuit about 20 years before Silicon Chip designed theirs (maybe they copied mine?).

I used this IC in a fairly complicated equalizer circuit for a special kind of speaker. Tens of thousands of equalizers were made and sold and none failed.
 




okk sir what you said i followed & results are going well . . now let us turn to another matter of boosting up bass ,
Now what if i want to connect a circuit after a preamp out before entering any audio amp. (say output from a usb sound card for pc or laptops ) how the diagram differs ? please comment with a circuit diagram
 

The circuit remains the same.
The output of a preamp, sound card, CD player or MP3 player can feed the inputs of the bass boost circuit I posted and its outputs can feed the inputs of an audio power amplifier.
 

Audioguru said:
The circuit remains the same.
The output of a preamp, sound card, CD player or MP3 player can feed the inputs of the bass boost circuit I posted and its outputs can feed the inputs of an audio power amplifier.
Click to expand...



hmm kkk got it thanks ! well i was planning for bass trebble & mid controls but not sure if i can design or not in a single circuit . . Is it so possible to design that ? please help me with diagram if yes . .
 

Audioguru said:
If you look in Google for Bass, Mid and Treble Tone Control Circuit you will find plenty of them.
Click to expand...



ya all we know that well but what i know is you ll provide me things which are one take ok . . so please help , but i am googling here

- - - Updated - - -

what i found selectrd one are here please check if any



one more here with a link

https://commons.wikimedia.org/wiki/File:Filter_bass_mid_treble.svg



a diffrent type with complexions




**broken link removed**




https://www.instructables.com/answers/Add-simple-tone-control-problem/




**broken link removed**





https://www.redcircuits.com/Page53.htm
 
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