Hughes & Kettner Tube Factor Overdrive

Hughes & Kettner Tube Factor Overdrive

The Hughes & Kettner Tube Factor is a professional-grade tube overdrive and boost pedal that delivers genuine valve warmth and dynamic response. Designed around a real 12AX7 preamp tube, this pedal brings the unmistakable harmonic richness and touch sensitivity of a true tube amp into a compact floor unit. Whether used as a subtle enhancer for clean tones or as a full-blown overdrive to push your amp into saturation, the Tube Factor excels in preserving note clarity and amp-like feel.

With its two selectable drive modes Factor 1 for smooth, low-gain warmth and Factor 2 for higher gain and more aggressive drive it’s a versatile tone-shaping tool trusted by both studio players and touring professionals.

Specifications & Features:

• Type: Tube-driven overdrive, boost, and distortion pedal

• Tube: 1 × 12AX7 (ECC83) preamp tube operating at full voltage

• Controls:

  • Drive: Adjusts amount of tube overdrive and saturation

  • Output: Controls overall volume and headroom

  • Factor Switch (1/2):

    • Factor 1 – Low gain, smooth tube boost and edge-of-breakup tone

    • Factor 2 – High gain, saturated overdrive with enhanced harmonics

• Tone Character:

  • Warm, dynamic, amp-like response

  • Transparent tube boost for clean channels

  • Organic overdrive ideal for blues, rock, and classic tones

• Electronics:

  • True analog signal path with tube-driven preamp stage

  • High headroom design for pristine clean boosts

  • Buffered bypass for consistent signal integrity

• Construction:

  • Rugged metal chassis for stage durability

  • Illuminated tube window for visual feedback

• Power: 12V AC adapter (included)

• Dimensions: Approx. 6.5" x 4.5" x 2.0" (165 x 115 x 50 mm)

• Weight: Approx. 1.2 kg

Why Guitarists Love It:

The Tube Factor captures the essence of real tube amp tone warm, responsive, and musical. From creamy blues overdrive to full-on rock crunch, it’s a pedal that enhances your rig’s natural character while adding that unmistakable tube glow and feel.