Popping after AMZ supper buffer
I'm sorry about my stupid English mistake.sgret612 wrote: However, I'm not sure that it is apposite method to prevent the popping?
A thing what I wanted to say is "I'm not sure that it is apposite method to prevent the popping. Any better ideas?"
So, does anyone have any better idea? Or my method to prevent popping is OK?
Thanks.
- DarkRain
- Solder Soldier
Information
Hello,
I'm afraid that i had the same problem with that buffer and i didn't manage to find a cure for the pop...
Best regards,
Gabriel Tudoran
RiotDevices
(former Analog Sound)
I'm afraid that i had the same problem with that buffer and i didn't manage to find a cure for the pop...
Best regards,
Gabriel Tudoran
RiotDevices
(former Analog Sound)
- phatt
- Transistor Tuner
Try lowering the value of coupling caps, in and out.
i.e If they are 10uF then try ~2uF or even 1uF maybe enough.
Also if caps are faulty you may never be able to get rid of pops even with bleed down resistors.
Phil.
i.e If they are 10uF then try ~2uF or even 1uF maybe enough.
Also if caps are faulty you may never be able to get rid of pops even with bleed down resistors.
Phil.
phatt wrote:Try lowering the value of coupling caps, in and out.
i.e If they are 10uF then try ~2uF or even 1uF maybe enough.
Also if caps are faulty you may never be able to get rid of pops even with bleed down resistors.
Phil.
Thanks for replies!!!coldcraft wrote:read this, http://www.mrblackpedals.com/blogs/stra ... switch-pop
>Phatt
Do you mean output cap? I 'm worrying that the low freq sound will be cut off...
>coldcraft
Thanks for a great article!! but... what are resistance values and capacitance values in the end?
- phatt
- Transistor Tuner
Thanks for replies!!!coldcraft wrote:read this, http://www.mrblackpedals.com/blogs/stra ... switch-pop
>Phatt
Do you mean output cap? I 'm worrying that the low freq sound will be cut off...
>coldcraft
Thanks for a great article!! but... what are resistance values and capacitance values in the end?[/quote]
Yes output Cap, I very much doubt you will loose bass as most guitar gear is HiZ input anyway.
Often I find the difference between 2uF and 10uF is not even audible.
Yes if you wish to drive long lines into low Z input the whole game changes where mixer circuits may have 100uF.
I'd simply test it to see if you loose bass.
I'd go read the link *coldcraft* found as there is good info on that page.
Also agree that 100 Ohms is a little low some opamps may not like that idea.
Go with coldcraft's rule of thumb 500~1k
Phil.
Again, Thanks for a replies!!!!phatt wrote:Yes output Cap, I very much doubt you will loose bass as most guitar gear is HiZ input anyway.phatt wrote:Thanks for replies!!!coldcraft wrote:read this, http://www.mrblackpedals.com/blogs/stra ... switch-pop
>Phatt
Do you mean output cap? I 'm worrying that the low freq sound will be cut off...
>coldcraft
Thanks for a great article!! but... what are resistance values and capacitance values in the end?
Often I find the difference between 2uF and 10uF is not even audible.
Yes if you wish to drive long lines into low Z input the whole game changes where mixer circuits may have 100uF.
I'd simply test it to see if you loose bass.
I'd go read the link *coldcraft* found as there is good info on that page.
Also agree that 100 Ohms is a little low some opamps may not like that idea.
Go with coldcraft's rule of thumb 500~1k
Phil.
coldcraft wrote:i use 680R or 1k for the series limiting resistors, and usually a 100k to ground on the output.
>Phatt
Ok. I will try with a 2uF cap!!
>coldcraft
Do you mean 680R for input and 1k for output? Right?
How about capacitors? You do not put capacitors?
Thanks.
- phatt
- Transistor Tuner
He means the four outputs where all 4 outs are driving the same load.
Think of joining the speaker outputs of 4 100watt Amp heads into one speaker and the result would be Instant smoke and 4 dead amps.
well it's still a problem with line levels where you do need some series resistance and depending on the ability of the device used it's better to play safe. So anywhere from 680R up too 1k for those 4 series resistors.
If you have split rail supply you can direct couple the inputs but with single supply (i.e. 9Volt Batt) you have to float the ground reference usually at half working voltage so you then need to decouple the incoming AC signal with a capacitor.
One big advantage of split rails and direct coupled circuits is you don't get so many pops and glitching when switching things.
Phil.
Think of joining the speaker outputs of 4 100watt Amp heads into one speaker and the result would be Instant smoke and 4 dead amps.
well it's still a problem with line levels where you do need some series resistance and depending on the ability of the device used it's better to play safe. So anywhere from 680R up too 1k for those 4 series resistors.
If you have split rail supply you can direct couple the inputs but with single supply (i.e. 9Volt Batt) you have to float the ground reference usually at half working voltage so you then need to decouple the incoming AC signal with a capacitor.
One big advantage of split rails and direct coupled circuits is you don't get so many pops and glitching when switching things.
Phil.
- coldcraft
- Diode Debunker
i meant 680R to 1k for the input and output limiting resistors I linked to. those are just common values that I have.
Black Dynamite wrote:you need to shut the fuck up when grown folks is talkin.
- phatt
- Transistor Tuner
Opps! ta mate, I should have looked at the schemo before I made comment. Thanks for the clarification.coldcraft wrote:i meant 680R to 1k for the input and output limiting resistors I linked to. those are just common values that I have.
Phil.
Hello.coldcraft wrote:i meant 680R to 1k for the input and output limiting resistors I linked to. those are just common values that I have.
I'm sorry that I 'm late to reply.
I tried this 2 days ago.
"Putting 1k resistors for input and output current limit and 100k resistor for pulldown."
Then, I got it!! it does not pop anymore!!!!
Thanks a lot!!!!!