Knight Stereophonics Ltd's mother company Knight Wah Technology Ltd., acquired Dignity Audio in 2019. Dignity Audio's Power Purify Transformer with different maximum output power models are available for purchase. 

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The Power Purify Transformer (PPT) models：PPT-50 (50W) , PPT-120 (120W) , PPT-240 (240W), PPT-1500 (1500W) are available. For more information, please contact us.