It is a beam power quadrupole with an anode limit dissipation power of 42W. In audio amplifier, 100W power can be obtained when two electronic tubes act as AB1 push-pull output Tone: The medium frequency is fuller, the high and low end are extended very well, the high frequency is exquisite, elegant, smooth, and the low frequency is solid, especially the details are more than 5 levels, which is far more than the modern replication vacuum tubes such as "Mullard". The overall sound field is deep and broad, sweet and rich, and the lines are clear The shop promises: The electronic tubes operated by our store are guaranteed to be brand new and high-quality genuine products from the original factory, and we will provide free replacements for any quality problems within one year. All tubes are rigorously tested to match .Buy 2pcs = Precision matched pair. Buy 4pcs = Precision Matched Quad. We have the conditions and advantages to match multiple tubes (four tubes, eight tubes) according to customer needs. The same parameters. It is a professional shockproof and firm package. It is absolutely safe. Note: It will be shipped after strict inspection again (please do not think it is a fake and shoddy product after receiving the tube).

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