Emerson Custom

Emerson PRO CTS - 500K Short (3/8") Split Shaft Potentiometer

NZ $12.99

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Emerson Pro CTS pots from Emerson Custom were designed to be the premium choice for the discerning guitarist looking for the optimum performance and tonal response from a guitar potentiometer.

These specially designed Emerson Pro CTS feature a longer-life brass shaft and bushing and a tighter ±8% resistance tolerance compared to CTS products offered by most other suppliers meaning you get a product that will work better and longer than your stock pots.

Each and every Emerson Pro CTS pot is hand tested to ensure that they meet or exceed our stated tolerances. We take great pride in offering some of the best, most consistent potentiometers on the market today. Emerson Pro CTS pots have a proprietary custom audio taper that was specially designed by Emerson Custom to give you a very smooth and accurate response when you roll up and down on the controls. These pots will give you a much more responsive taper than what you'll get with economy or even standard issue CTS pots. Crank your guitar up to 10 and the volume swells all the way—no abrupt flattening to choke your playing style. Clarity and Precision define this Series of Premium Potentiometers by Emerson Custom.

Each Emerson Pro CTS pot includes a flat washer, lock washer, and two hex mounting nuts for custom height adjustment on a pickguard, control plate, or directly on to the guitars top from inside the control cavity.


  • Tight ±6% Resistance Tolerance
  • Hand Matched Sets to ±2%
  • Round Split Shaft
  • 0.250” (6mm)Shaft Diameter
  • 3/8” (9.52mm) Shaft Height
  • 3/8” (9.52mm) Required Mounting Hole:
  • Requires US Spec 1/4" Control Knobs

Boutique ToneLounge Pot Matching: 

We hand test and match every single Emerson Pro potentiometer that leaves our store, so you can rest assured that your pot will work like it should and will also be rating matched to within ±2% any other pots of the same type that you buy with it.


Reviews (3)

Richard Grist 19th Sep 2017

500k Tone Pot

This was a very easy transaction and the tone pot arrived within a couple of days. The quality appears very high and I was satisfied with the results once in the guitar. I would highly recommend dealing with this company.

8th Jun 2017

Top Pot

Pots look quality and all reports suggest they are. They feel good to turn and the taper works for me. They are a little pricey but then you get what you pay for. Bourns pots are close in quality but cheaper. Well packaged and speedy despatch.

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