Behringer xenyx x1204usb mixer

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Lol... The pot with or without the midpoint is exactly the same electronically. The little click is only guidance for extremely low light conditions or blind users... electronically there is no difference....

Just use the correct values in the correct places...

[Thermaltake]

I searched now on aliexpress but I can't find anything with midpoint AC10K 6pin 23mm shaft.


does it matter if there is no midpoint, will it work normally without it if I put them instead of this original ones ?

[Thermaltake]

ah, I will need new AC10K then with midpoint because this was for some reason without midpoint(center). I'll try and search it myself if you don't have time.

[check12]

Can I use that AC10K instead of B503 6pin ?

No.... AC pot has a completely different taper to a B pot.

They are obviously completely different values too. AC10K = AC103. ....

[Thermaltake]

Can I use that AC10K instead of B503 6pin ? They are both without center pin.

B50K link is now giving me 404 error

[Thermaltake]

AC10K came but they don't have midpoint lol

I wrote to seller

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I assume this first one B50K would be ok to put in place of those two, right ?

Yes same as the already listed 6pin B50K with midpoint & 23mm shaft length for EQ etc ...

[Thermaltake]

I assume this first one B50K would be ok to put in place of those two, right ?

[Thermaltake]

Thank you.

There also 2x 3B503x with 6 pin and midpoint for FX on the Stereo Aux Returns.

[check12]

Ok corrected list ... (taking it that the 6pin pots are 12mm between the 2X "snap in" securing tabs on the pot bases) that's the most common size:


B503 = B50K (6pin with midpoint) use for headphones & low, mid, high EQ = https://www.aliexpress.com/item/1005007343612656.html

B503 = B50K (3pin with midpoint) for FX = https://www.aliexpress.com/item/1005006554255808.html

AC103 = AC10K (6pin with midpoint) for "balance" = https://www.aliexpress.com/item/1005008338040792.html


Always click on postage options and choose "Aliexpress standard delivery" and you should receive them within 14 days ... other options can take months...

These are all from the same trader you might get a cheaper deal by contacting them and asking for consolidated postage ... (Always use Aliexpress standard delivery though)...

[check12]

Thanks.

On B50K - this one on link have plastic threads on the bottom of the pot. Mine don't, and I think that will make problems when I wan't to close that metal cover of mixer.

OK didn't consider that and actually I think I have advised wrong base size for the pot frame snap in lugs.

Post the measurements (length, width) of the square pot bases & I'll have a look again when I've got time... 👍

[Thermaltake]

Thanks.

On B50K - this one on link have plastic threads on the bottom of the pot. Mine don't, and I think that will make problems when I wan't to close that metal cover of mixer.

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B503 = B50K (6pin with midpoint) use for headphones, low, mid, high EQ = https://www.aliexpress.com/item/1005007954345312.html

B503 = B50K (3pin with midpoint) for FX = https://www.aliexpress.com/item/1005005806597186.html

AC103 = AC10K (6pin with midpoint) for "balance" = https://www.aliexpress.com/item/1005006950880734.html

I know the original headphone pot did not have a midpoint detent but having one will make no difference.

Don't forget to choose the correct "AC10K With Midpoint" option in the listing for the AC103 pots ...... & in the 3pin B50K listing choose "50 ohm" option, they have forgotten to type the K (it shows the pot with the K in the photo & they don't make that style of pot in only 50 ohms).

The B50K are all Taiwan Alpha pots which are good quality, the AC taper pots are difficult to find so you'll just have to go with what's available.

I've no more time for this so if your not happy with these links then you will have to search further for yourself ... all the info for searching has been given...

[Thermaltake]

Can someone help me with getting this pot's, everyone that I contact can't help me...

[Thermaltake]

Sent mail few days ago to TME with all the values of pots I need, and they told me today " Hello! We can't to offer.... 🙁 " So I guess I am continuing to send mails and finding out who can provide me those pots.

[Thermaltake]

Yes the only difference is the amount of pins, these pot serial numbers are just behringer part numbers ... e.g. for the 3B503x the "3" and the "x" are likely just added as part identifiers for behringer, the important details are:

the B = linear taper

the 503 code = (which means 50 followed by three zero's) = 50,000 ohms or 50k ohm

... then you also do a visual & manual check to find:

the pot mounting orientation = vertical

the number of pins = either 3 or 6

the length of shaft & size of body

& finally ... whether the pot has a tactile center detent or not

....

Thanks so much for all the info. and patience for explaining

[check12]

Ok.

Now I see, stupid me. The difference is one is 6 pin, one is 3 pin, that's why they're different.

Yes central pin when you move pot in the center there is click or stop however you want to call it.

Yes the only difference is the amount of pins, these pot serial numbers are just behringer part numbers ... e.g. for the 3B503x the "3" and the "x" are likely just added as part identifiers for behringer, the important details are:

the B = linear taper

the 503 code = (which means 50 followed by three zero's) = 50,000 ohms or 50k ohm

... then you also do a visual & manual check to find:

the pot mounting orientation = vertical

the number of pins = either 3 or 6

the length of shaft & size of body

& finally ... whether the pot has a tactile center detent or not

....

[Thermaltake]

Caps on the main pcb should not need replaced.

OK photos confirm all pots are mounted vertically so what I advised in reply #27 is correct.

I'm taking it when you say "central pin" you mean you feel a little click when the pot shaft is in the middle of the range of travel? e.g. Half way between fully CCW & fully CW?

Ok.

Now I see, stupid me. The difference is one is 6 pin, one is 3 pin, that's why they're different.

Yes central pin when you move pot in the center there is click or stop however you want to call it.

[check12]

Caps on the main pcb should not need replaced.

OK photos confirm all pots are mounted vertically so what I advised in reply #27 is correct.

I'm taking it when you say "central pin" you mean you feel a little click when the pot shaft is in the middle of the range of travel? e.g. Half way between fully CCW & fully CW?

[Thermaltake]

Use the same replacement pot as low, mid, high EQ.

Easiest way to replace caps in behringer power supply is to use 105c (temperature) low esr for all replacements.

IMO your doing a lot of unnecessary work... What is actually wrong with the desk?

Caps on PSU were already replaced a year ago. There were 3 bad caps, and I replace them all with stronger ones few Volts more than it was by factory. I was talking about motherboard where pots are, when I am going to replace pots I would like to replace that caps also and for them I was asking if they are low esr or normal caps.


I noticed there are two kind of 3B503x (both for FX/AUX and both with central pin.)

1. https://i.imgur.com/Tuqxtd2.jpg

2. https://i.imgur.com/1lrWuTm.jpg