Koetsu just came out with the new ($4,995) Step-Up Phono Cartridge Transformer. Housed in an understated enclosure, the real power comes from what’s inside. The Koetsu Step Up Transformer provides 26dB of clean gain and the ideal load for your Koetsu. It is perfectly suited for all Koetsu cartridges. 

“For more than thirty years, Koetsu has masterfully blended the highest purity technical materials with ones of natural beauty to create the most sought-after cartridges in the world. Sugano- San’s legacy is carried on by his son Fumihiko who apprenticed under his father to become a master cartridge maker. Every Koetsu cartridge is handmade in Japan and inherently limited in nature.” 


  • Frequency Range: 20Hz – 50KHz
  • Frequency Response: ±3dB
  • Gain: 26dB
  • Open Impedance: 10K ohm or more
  • DC Resistance: Input: 4.5 ohms
  • Output: 132 ohms
  • Insultation Resistance: 100M ohms or more at DC250V
  • Dimensions (WxHxD): 5.51” x 2.83” x 6.10”
  • Weight: 2lbs