Marantz Model M4 Wireless Streaming 8 Channel Distribution Amplifier with HEOS® Built-in Size_155" to 185" AMP 10 is engineered using

AMP 10 is engineered using cutting-edge technologies to enable extraordinary power output

while the 12AT7 tubes are for the Voltage and Driver amps

8 Ω)  Total Harmonic Distortion < 0

You need to have purchased AT LEAST Rs 40

Marantz Model M4 Wireless Streaming 8 Channel Distribution Amplifier with HEOS® Built-in Size_155" to 185" AMP 10 is engineered usingMarantz MODEL M4 is a four zone, rack mountable distribution amplifier engineered to offer superb Marantz sound from a wide range of streamed music services, locally connected music sources, and your TV. MODEL M4 offers an innovative and intelligent take on traditional distribution amplifier designs. A rack mountable distribution amplifier for dedicated music lovers, it delivers superior sound from a wide range of streamed music services, locally