Line Magnetic LM-500PA Mono 300B tube Power Amplifier Pair
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Line magnetic Audio LM-500PA Pure Class A Single-ended Mono Power Amplifier Duad
Thirty-two watts per channel, Single Ended design, Pure Class A Mono Power Amplifier with 212 output power tubes.
All tube design with 310A input tubes for voltage amplification, 300B driver tubes, 274B rectifier stage and 212 output tubes. In LM-500PA 310A tubes are specially designed by ours and well-tuned for matching with our system while 300B and 274B tubes are PSVANE WE series of tubes.
Three pairs of inputs: Switchable between two pairs of RCA inputs and one pair of Balance input located on the rear panel.
4, 8 and 16 ohm speakers output terminals are located on the back panel for you to easily choose and match with different output impedance of speakers.
User bias control has been used for bias adjustment of 212 Power tube and one meter has been added to the front plate to allow you to monitor bias with ease.
Auto-biased design for 300B tube. 300B is working in the way of auto-bias to make sure 300B works in a safe and reliable way.
External Hum Balance adjustment for sound adjustment.
Specially designed Toroid transformers for power supply, one driver transformer and one EI output transformers with wide bandwidth are applied.
Phase switch is accessible on the rear panel of the amplifier and you can choose the suitable phase to match your system.
Top grade RTX series of USA Muliticap Capacitors, Denmark Jensen Capacitors, German Mundorf, Mcap, Japanese Nichicon Capacitors, Japanese Kiwame Carbon Film Resistors, Motorola Big Bridger etc. Audio grade components have been applied.
Handmade construction with the finest point-to-point wiring.
Up and Down design of the tube movement to protect the lifetime of the power tube. Software controlled.
Power output: 32W + 32W
Frequency response: 20Hz～50kHz（-1.5dB）
S/N Ratio: 87dB
Input Sensitivity: 1000mV
Input Impedance: 100kΩ (RCA), 600Ω (Balance)
Output Impedance: 4Ω，8Ω, 16Ω
Dimension (W×D×H): (300 x 600 x 575) mm * 2 pcs
Vacuum Tube: 274B×1, 310A×1, 300B×1, 212×1
Net Weight: 60kg *2 = 120kg
Gross Weight: 70kg *2 = 140kg
Power Supply： AC 220V±5%(50Hz)
Power Consumption: 330W *2