With the advent of increased 15W power output for the Elecraft™ KX3, more owners than ever are finding it difficult to keep their rigs cool.  We are proud to announce the release of the ultimate heatsink for the Elecraft™ KX3:  The Pro Audio Engineering Kx32!  Like its Kx31 brother, it is designed using thermal modeling and offers the maximum cooling by natural convection.  Only slightly larger than the Kx31, the Kx32’s performance exceeds the Kx31 by 25% or more depending on band. The Kx32 is a billet-aluminum piece black-anodized to match and compliment the appearance of the rig. It is designed for serious digital mode operators and will allow for greatly extended transmit time in any digital mode or band at full output.   The Kx32 incorporates several features not found on competing heatsinks:

  • Designed using thermal modeling software for best performance.
  • Ratio of base mass to fin area optimized for the duty cycle of digital modes.
  • Rounded cross-section for no-snag use in fabric cases, and no sharp corners to cut or damage adjacent objects.
  • When mounted on Elecraft™ KX3 along with GemsProducts™ SideKX plates and cover, the combo will fit in a standard Rose’s KX3 case.
  • Custom-color black anodized instead of powder-coated for superior thermal performance.
  • Radiusing compliments the design of the Elecraft™ KX3 and the GemsProducts™ SideKX.
  • Its design interlocks with and greatly enhances the impact resistance of the SideKX Cover.
  • Custom fin spacing matches KX3 screw placement for a clean appearance, unlike others it does not look like a stock heatsink profile modified to fit.
  • Optimum compromise for most all operators between stock appearance and enhanced transmit time.
  • The Kx32 is supplied with correct longer replacement black-oxide stainless steel screws and a packet of heat-transfer grease.
  • The Kx32 offers the maximum dissipation allowed by the footprint of the KX3’s top surface.
  • In addition the Kx32 offers the highest performance in the minimal volume as proven by multiple tests.
  • The Kx32 offers the best performance value of any aftermarket KX3 heatsink, delivering more cooling than all others.
  • Each heatsink is visually checked after machining, and again after anodizing to make sure there are no defects before being shipped to you.

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Specifications:

Size: 7.125″ x 1.75″ x 0.750″

Weight: 7.2 oz., 204 g.

Color: Custom dye batch black to match the Elecraft™ KX3

Thermal Resistance: <2.75°C/W

Surface Area: 48in²

Warranty: The Kx32 is warrantied against all manufacturing defects.  Read all Warranty details here.

Key-down Transmit Time Improvement:

160M-430%, 80M-350%, 40M-350%, 20M-300%, 15M-300%, 10M-430%, 6M-550%