No the transforrmer / switch / Rectifier in this package
Technical information:
• This circuit is the main amplifier circuit with has an input sensitivity at 1Vrms, input impedence 20Kohms.
• Frequency response 10 to 100 KHz. (+/- 1dB), and total harmonic distortion 0.02 %
• Using the end stage circuit is always set to class AB.
• Power supply : Dual 50 VDC. ( +50VDC/-50VDC )
• PCB dimensions : 6.0” X 2.4”