Juakali deep bass preamp

[@lilljohn2335]

True mid section ya green board ni best but bass ni bure kabisa

[@emmanutechnician]

True, maybe you use it for mids, then gx series for bass

[@dennismuriuki225]

What is the maximum output of the bass speaker from the amplifier?

[@emmanutechnician]

It can rarely pass 80w. There's a time I tried to measure, see it here
th-cam.com/video/e9XwCD8k3T4/w-d-xo.html

[@EvansMuriuki-lq1qz]

Gud work bro alfu unaeza tmia preamp na knob ya sauti juu ynye nkonayo Iko connected na knob side ya bass Kwa board

[@emmanutechnician]

Bora inawork iko sawa. But hii yangu niliiprefer juu inaadjust gain na frequency

[@EvansMuriuki-lq1qz]

Kubuy mja kna hyo preamp ni how much

[@emmaculatedavid]

Hello I have a problem with my woofer when functioning the sound disappear even when you increase the volume the sound disappear what might be the problem

[@emmanutechnician]

What brand is the woofer?

[@derocapleton]

How much do u charge to fix the preamp

[@emmanutechnician]

I just copied the circuit diagram I've shown

[@JamesKamau-gr8bk]

I have a problem with the schematic u referred...the one on the site has 1 pot and yours has 2 pots how come can you please help me with the 2 pot connection

[@emmanutechnician]

On JRC 4558, pin 7, there is that R1 100k, that's the 2nd potentiometer B100k,

[@JamesKamau-gr8bk]

Thanks i was able to do the connection ..can u do a video abt the relay red board assembly

[@BobMac-h8k]

SO IF I HAVE AN EQUILIZER NO NEED OF THE PREAMP FOR MY RELAY REDBOARD

[@emmanutechnician]

You can use both for better performance

[@NiiteKwako]

I ones assembled mine but the outcome was not a pure bass .it has some kind of destosions .What may have contributed to have such outcome??

[@emmanutechnician]

Maybe you used the single power supply model, i.e 12v and ground.
The one have used is silent, provided you don't push gain knob to maximum

[@NiiteKwako]

I used 12v 2.0 Amperes adapter to supply the pre amb

[@emmanutechnician]

I aslo assembled one with 12v 2A and it distorted. Use the ones with dual power supply, like the one I've used. It's silent

[@alexkisanya521]

Where are you located sir...my kisiagi is missbehaving

[@emmanutechnician]

Am far off town

[@Edwinkefa]

Good just explain more on connecting from juakali bass booster

[@emmanutechnician]

It's only three connections, power, i.e +12v, 0v,-12v. Then intercept sub signal after the two 22k resistors, take it to pre amp, then its output connect to 1k resistor taking to sub channel.

[@victorvicsantos5983]

Pale umetolea power ya preamp unaeza tolea equalizer pia

[@emmanutechnician]

Yeah, but eq huwa naitafutia power adapter yake kando ya 12v 2amperes,

[@whatshappeningintheworldpo6714]

​@@emmanutechnicianSeparation is the key

[@chesaudio5430]

I have another simple bass preamp circuit for you to try. Let me know where I can send you the schematics

[@emmanutechnician]

I was thinking of modifying this model with several 4558. WhatsApp me 0714874760

[@johnmwaniki8603]

2.1 amp complete na usb player how much

[@PriscillaManywanda]

How much is the pre amp

[@emmanutechnician]

This one was DIY, very few components

[@PriscillaManywanda]

But do they in some way work as an equalizer

[@vincentarjen6983]

Can u use the pre amp and equalizer at the same time ?

[@emmanutechnician]

Yeah, but they serve the same purpose

[@chefpatrick-xh3ic]

Bro weka no pia nkutafute bana

[@LONUCAREPHARMACEUTICALS]

Please can you assemble my amp

[@simonkamore2178]

Does the low pass filter and pre amp surve the same purpose

[@emmanutechnician]

Yeah, they filter signals and send bass only to sub channel

[@Vincent-e6t]

I have one almost same as that but the bass is not that good, i mean doesn't sound better

[@emmanutechnician]

1st, balancing is the key, don't put everything to max, it will clip.
2nd, probably the subwoofer box isn't tuned properly.
I'll make 2nd version of the preamp with more ICs. But that will need more powerful amp. This green board hardly reaches clean 80w

[@DavidNjenga-mr6mm]

@@emmanutechnician when are you doing this????
I've been waiting for the longest

[@TimothyKipkoech1]

Leta link ya schematics

[@emmanutechnician]

I think I showed in the video, I'll check