Line Magnetic LM-503PA vacuum tube 300B 845 Dual Mono-block Power Amplifier Class A Single-ended 24W*2 Pair [Line Magnetic LM-503PA] - $5,065.99 USD
K 028 Line Magnetic LM 503PA Tube Amplifier Monoblock Amplifier 300B Push 845 Class A Single ended 24W*2|monoblock amplifier|class a tube amplifiertube amplifier - AliExpress
K 028 Line Magnetic LM 503PA Tube Amplifier Monoblock Amplifier 300B Push 845 Class A Single ended 24W*2|monoblock amplifier|class a tube amplifiertube amplifier - AliExpress