Can a 100kΩ balance pot replace a 250kΩ unit?

[Blue Shadow]

I want to replace the balance pot in a preamp. The original is 250kΩ and a good one of these is hard to find. There are a few 100kΩ units that could work, but will they?

Here is the schematic of that section of the unit. The Balance control is the RV1a and b in the center of the diagram. Wondering what effects the lower resistance will have on the circuit and if modifications (added resistance) would be necessary. Guidance greatly appreciated.

 

[pskaudio]

If you're willing to sacrifice the ability to turn one channel all the way to "off", just add a 150K from the ground connection on the pot. This will keep the input impedance the same with the balance control in the center position.

 

[pskaudio]

The above is only correct if the new balance control has two sections, one for each channel. With a 100k control, the parallel Resistance of the balance and volume is almost half (approx. 83K vs. 166K). If it's not too much of a pain, try it.

 

[Blue Shadow]

Thanks, I'll move forward with this replacement.