Hello, I’ve been looking for a dual audio taper pot and having some difficulty.

First, maybe I don’t need such a device. I want to take an audio output and with this pot, feed it into two amplifiers. The pot is a balance control of sorts, setting two different levels into the two amps.

Since it was audio. I assumed that I would need an audio taper. But perhaps in this application, a linear pot would work.

If not, I think I need a dual pot where one goes from minimum output on the left to maximum output on the right, which would be ganged with a second pot with maximum output is on the left to minimum output on the right.

Like this;

Pot Min Max
A. Left Right
B. Right Left

Do I need this and how do I find it? I’ve found dual logarithmic taper pots, but can’t tell from the datasheets the direction of the taper for each pot.

 

The audio-taper element seems like it should only be present at one point in the signal chain.
I.e., after all filtering and level-shifting.
Someone will know.

 

That’s what I was thinking. But my circuit has an active splitter whose output is fed into dual mixers.

The audio taper is in the splitter input to balance the volume and I’m using an straight pot to divide the splitter output into the input of two mixers feeding dual amplifiers.

The audio signal is mono. The sources are spread out over a 10’-12’ area with one directional speaker/amplifier on each side. The listener should experience each source based on where they are located. If the listener is on the left, sources on the left should be louder than sources in the middle and right. Sources in the middle should be reinforced by two speakers and hence appear the loudest by listeners in the middle. And sources/listeners on the right should have a similar experience as listeners on the left.

 

Hello, I’ve been looking for a dual audio taper pot and having some difficulty.

First, maybe I don’t need such a device. I want to take an audio output and with this pot, feed it into two amplifiers. The pot is a balance control of sorts, setting two different levels into the two amps.

Since it was audio. I assumed that I would need an audio taper. But perhaps in this application, a linear pot would work.

If not, I think I need a dual pot where one goes from minimum output on the left to maximum output on the right, which would be ganged with a second pot with maximum output is on the left to minimum output on the right.

Like this;

Pot Min Max
A. Left Right
B. Right Left

Do I need this and how do I find it? I’ve found dual logarithmic taper pots, but can’t tell from the datasheets the direction of the taper for each pot.

This might be useful (or not?). Put a non-linear taper pot across the input if you must (preferably with a buffer to reduce loading by this R network).
View attachment 183510

 

Hey dj, not sure if this will work for you but I have seen stacked potentiometers used for balance and blending... they could be log or linear...

https://global.rakuten.com/en/store/chuya-online/item/141983/

 

Since it was audio. I assumed that I would need an audio taper. But perhaps in this application, a linear pot would work.

Since the ear sensitivity to sound is logarithmic, an audio volume pot is also logarithmic, so that the perceived loudness, is roughly proportional to the pot position.
That proportional factor is not necessarily needed for a balance pot, so a standard linear pot should work fine.