Here’s the point-wise list of all possible potentiometer combinations for volume, bass, and treble in amplifiers:

  1. Mono – All Separate

    • 1 × Single-Gang Volume pot (3 legs)

    • 1 × Single-Gang Bass pot (3 legs)

    • 1 × Single-Gang Treble pot (3 legs)

    • Total: 3 pots

  2. Stereo – All Separate

    • 2 × Single-Gang Volume pots (3 legs each)

    • 2 × Single-Gang Bass pots

    • 2 × Single-Gang Treble pots

    • Total: 6 pots

  3. Stereo – All Common (Linked)

    • 1 × Dual-Gang Volume pot (6 legs)

    • 1 × Dual-Gang Bass pot

    • 1 × Dual-Gang Treble pot

    • Total: 3 pots

  4. Stereo – Mixed #1 (Volume common, tone separate)

    • 1 × Dual-Gang Volume pot

    • 2 × Single-Gang Bass pots

    • 2 × Single-Gang Treble pots

    • Total: 5 pots

  5. Stereo – Mixed #2 (Volume separate, tone common)

    • 2 × Single-Gang Volume pots

    • 1 × Dual-Gang Bass pot

    • 1 × Dual-Gang Treble pot

    • Total: 4 pots

  6. Stereo – Mixed #3 (One tone common, one tone separate)

    • 1 × Dual-Gang Volume pot

    • 1 × Dual-Gang Bass pot

    • 2 × Single-Gang Treble pots

    • Total: 4 pots

  7. Pot + Power Switch

    • Volume pot with built-in ON/OFF switch

    • Used to power the amp while controlling volume

  8. Pot with Loudness Tap

    • Potentiometer with extra tap (5 legs)

    • Boosts bass/treble at low volume

  9. Triple-Gang Pot

    • 9 legs

    • Can combine volume + bass + treble in one knob for one channel

  10. Quad-Gang Pot

    • 12 legs

    • Used for 4-channel (quadraphonic) amplifiers