Best High Pass Filter Circuit |-24dB/Octave |Amplifier Project Part 5 |DIY Preamplifier

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@tushar8133 4 ай бұрын

Bro you are doing exceptionally good. I started looking for such amplifier concepts on youtube since last 5 years, and I can boldly say that those videos are not even nearer compared to the way you do it. Whether it's circuit explanation, concept, technology, video quality, and most important, no unnecessary boasting and time waste. I see you one of India's most educated and technically advance amplifier video channel, in upcoming years. My best wishes to you and to your channel.

@Roys_Desk 4 ай бұрын

Wow ☺️☺️.. this means a lot to me brother . Thank you so much for the support 😊😊

@BungDho 3 ай бұрын

nice work 🎉

@Roys_Desk 3 ай бұрын

@@BungDho Thank You 😊😊

@suvamdas5470 4 ай бұрын

Pcb layout dijiyaa na please

@Roys_Desk 4 ай бұрын

Sure … share me your mail id .

@louisanapereira1854 4 ай бұрын

What is the advantage of a 48db slope vs 24 db slope... excluding its sharper cutoff... As a sisde question ... Is a " karaoke " circuit available in open Indian market...or else how difficult is it to build one.

@Roys_Desk 4 ай бұрын

Technically… for Analog circuits or preamplifiers there are no advantages for 48dB filtering rather there are lot of disadvantages- 1) Too many RC circuits leading to big distortion which is too hard to fix 2) Very abrupt decrease of amplitudes which leads to weird power responses 3) Significant phase shifts due to multiple stages of RC filtering 4) A dull sound sometimes For Digital stuffs its a fully different story though . But for analog circuits I would really stick to max 24dB/octave. Answer to you second question will be - Yes inkocean have one karaoke board (I have heard good reviews about it ) Making a karaoke is not too tough also .

@analoghardwaretops3976 4 ай бұрын

Iam looking for a mono only 36/48 dB slope filter for two subwoofer bands...1) upto40/50 Hz...and next 2)bandpass sub W. ...40/50Hz upto 80/100Hz.. preferably an LR based design.... can such be built & explained as a demo by you..?

@Roys_Desk 4 ай бұрын

Hello , It can be built definitely but using LR into 36db setup is not an good idea …. It will lead to lot of oscillations which can be really hard to fix . Plus the 1) and 2) are different preamplifiers you mean ?

@analoghardwaretops3976 4 ай бұрын

@@Roys_Desk I want to split the sub W signal into two..as mentioned...to drive each band with 2 subs.

@Roys_Desk 4 ай бұрын

@@analoghardwaretops3976okay understood … you want the input signal to be divided between two different filters and the two different cutoff frequencies based filters will power two different subs !!

@analoghardwaretops3976 4 ай бұрын

@@Roys_Desk yes

@Ansh-tp4lz 4 ай бұрын

hey please can you make a preamp which work on 12 single supply and also how can I use op amp on single supply i am searching on internet for almost 3 years now and never found one which work for me I am not good at electronics as I am just a hobbyist. please help

@Roys_Desk 4 ай бұрын

Hello brother …. Actually any opamp or amp that we are powering with dual supply can be powered with a single supply also … just with a small hack 😊-> That is using rail splitter circuit (or creating a virtual ground). I can sure make one short video on that topic 😊!!

@Ansh-tp4lz 4 ай бұрын

@@Roys_Desk i know that but i want to use main power amp and preamp together both on same power supply thats why I can not use virtual ground please please make a video or just a short video on this topic or can you explain how or which circut pre amp is use on those chinese ( wuzhi audio ) amp 🥺 and thankyou so so much that you help me you are the only one who actually help me

@Roys_Desk 4 ай бұрын

@@Ansh-tp4lzThere are couple of things 1. Both preamp and amp can be powered with the same supply using rail splitter , no issues should come . 2. If you want to isolate the ground of the preamp from the amp then you can simply use one dc-dc isolator .For example 12v -> rail splitter-> to main amp 12v -> isolator -> rail splitter -> preamp 3. Wuzhi audio and all uses class D amp where there is no need to design preamp which will swing from negative voltage to positive voltage . It can simply swing from 0-12v . Circuit will be easy can make one short video on it for sure . Which can cover both single supply preamp and also the use of rail splitter

@Ansh-tp4lz 4 ай бұрын

@@Roys_Desk thankyou very very much brother for your help and time

@rogerwalter2500 4 ай бұрын

Excellent video, Please share the PCB layout , I have sent you email

@Roys_Desk 4 ай бұрын

@@rogerwalter2500 Thank you 😊…..Shared!!

@karanmalhotra2603 4 ай бұрын

Aap kaunsi city se ho brother? I have some technical work can you help

@Roys_Desk 4 ай бұрын

@@karanmalhotra2603 Im currently residing in Bengaluru brother 😊

@jamobhom 4 ай бұрын

33kHz is not a LPF. it's a HPF. our ears respond to 20Hz to 20kHz frequencies only.

@Roys_Desk 4 ай бұрын

By LPF I meant low pass filter … if you see the orientation of R and C in the last stage it is a LPF . I know very well our ears respond to 20hz to 20khz … but there are lot of interference that happens at higher frequencies and if you dont add this LPF in the end stage it will have that hissing sound when you make the volume full. That is why lot of power amps will also have a RADIO FREQUENCY INTERFERENCE FILTER at the input stage.

@englishsteve1465 4 ай бұрын

If it's designed to let frequencies LOWER than 33khz PASS and those higher than that NOT PASS, then it is a low pass filter. Simple. Nothing to do with whether or not you view 33khz as a high or low frequency as far as human hearing is concerned.

@Roys_Desk 4 ай бұрын

@@englishsteve1465 Exactly 👍

@jamobhom 3 ай бұрын

Thank you brothers, now I know. 👍👍