Skip Navigation Website Accessibility
 

Traynor 300 Watt Tube Stereo Amplifier - Vintage / Used

   
Quantity:    

Add to Cart

or call: (403) 2788844

Highly sought after used Traynor tube amp in MINT condition.

The Traynor K4 (often referenced with its Keymaster branding) is a 300-watt true-stereo keyboard amplifier. It features a 4-channel input matrix and an internal 12-inch woofer and compression driver setup designed to provide robust, full-range amplification for keyboards, electronic drums, and acoustic instruments. It is known as a hi-quality FRFR (Full Range Flat Response) option for electric guitar players using modeling rigs.

 

Technical Specifications
  • Output Power: 300 Watts Program (200W Low-Frequency, 2 × 50W Mid/High-Frequency)
  • Speaker Configuration:
    • 1 × 12" 200W Low-Frequency Driver (Mono summed)
    • 2 × 4.5" 50W Mid-Drivers & 2 × 2.5" 50W Tweeters (Left/Right Stereo)
  • Frequency Response: 20 - 20,000 Hz (± 3dB)
Channels & Inputs
  • Channel 1: 2 × Stereo pairs of 1/4" TRS inputs; features a 3-band EQ, an adjustable tube/solid-state overdrive, and a 5-position Voicing Circuit (Studio, Live, Piano, Organ, and Off).
  • Channel 2: 1 × Stereo pair of 1/4" TRS, 1 × mono XLR, and L/R RCA media inputs; features Gain and 3-band EQ.
  • Channel 3: 1 × Stereo pair of 1/4" TRS inputs; features independent Gain control.
  • Channel 4: 1 × Stereo pair of balanced 1/4" TRS inputs. Designed as an independent monitor-feed/click-track input that bypasses the Master volume and DI line out.
Outputs
  • Line Out: Stereo XLR (Post-EQ, Pre-Master) with Ground Lift.
  • Subwoofer Out: Unfiltered, mono-summed 1/4" output.
  • Headphone Jack: 1/4" stereo (located on the rear panel).
     
    Physical Attributes & Build
    • Cabinet Design: Multi-ply, void-free plywood with a metal grille and bar handles. Can be used in upright position or tilted back as a floor wedge.
    • Dimensions (H × W × D): 19.6" × 23.3" × 15.5" (49.5 cm × 59 cm × 39.4 cm)
    • Weight: 50 lbs (22.7 kg)