Oilily A300B MK Vacuum Tube Amplifier, Black

Oilily A300B MK Vacuum Tube Amplifier, Black

• Premium Tube Configuration: A pair of 300B output tubes with a 5AR4 rectifier, driven by 6N11 and 6N6 in the voltage stage, running pure Class A single-ended. This MK version adds two sets of inputs, a pure power-amplifier mode, and remote control.
• Transformers & Monitoring: A Z11 iron-core toroidal power transformer paired with two wide-bandwidth output transformers. Dual front-panel gauges show output level and tube current in real time, so you can see the amplifier working.
• Rated Output & Break-In: 8W + 8W into 8 ohms at 5% THD or less, from a pair of 300B tubes in pure Class A single-ended — the classic 300B topology, which trades raw wattage for tonal purity. Like all tube amplifiers, it needs playing time: expect roughly 80 hours at moderate volume before the sound fully settles, with the soundstage opening up around 50 hours. This is normal tube burn-in, not a defect.
• Warranty & Support: 1-year warranty against manufacturing defects; vacuum tubes are covered for 3 months. If a covered fault occurs, message us through Amazon and we will arrange a replacement from our US warehouse and provide a prepaid return label for the original unit. We will not ask you to open the chassis or solder anything.
• Speaker & Headphone Outputs: Speaker terminals accept 4, 8, and 16 ohm speakers. The front-panel 6.5mm (1/4") headphone jack engages automatically when a plug is inserted, switching the amplifier to headphone mode. It drives headphones from 8 to 300 ohms.
• Blue Accent Light: A soft blue accent light sits beneath the three front tubes and glows whenever the amplifier is powered on. It is part of the tube-stage illumination design and is always on during operation.