Fosi Audio Vacuum Tubes 7-Pin
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Fosi Audio Vacuum Tubes 7-Pin
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
We offer free worldwide shipping, except for certain regions such as Ukraine and Russia, where our services are currently unavailable.
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Customer Support
WhatsApp: +8613716612254
support@fosiaudio.com
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FAQ’s
If you have any questions, please refer here: FAQs
Product details
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Each package contains a pair of fully tested and matched vacuum tubes (2 PCS).
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5654W vacuum tubes for T20, P1, P2, Box X2, Box X4. Substitute for 7-pin 6AK5/6AK5W/6Zh1P/6J1/6J1P tubes. It can also directly replace WE-403A/403B/EF95 and ordinary 5654.
- 6J1, 6CB6A, 6Ж3N, 6J5, 6Ж5N tubes are compatible with audio devices such as BOX X2, BOX X4, P3, GR40, GR70, MC331, and T20X MKII.
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Note: Replacing the wrong type of tube may damage your amplifier. If you are not sure this 5645W can be used as a replacement for your audio device, please check with your amplifier manufacturer.
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It has a fuller, wider sound stage. The treble is smoother and the bass is a little bit tighter. And you can hear some details that you did not hear before while listening to more complex music.
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Every package you get goes through our careful packaging. With 18 months warranty. If you have any questions, please feel free to contact us.
- All vacuum tubes have been fully tested and strictly matched.
- These vacuum tubes are compatible with audio equipment including BOX X2, BOX X4, P3, GR40, GR70, MC331, T20X MKII, etc.
- Using an incorrect vacuum tube model may damage your amplifier. If you are unsure whether these tubes are suitable for your audio device, please confirm with the amplifier manufacturer.
FAQs
Please read our FAQs page to find out more.
How to: Choose the right banana plug?
- Closed Screw Type. All Fosi amplifiers use standard-sized speaker terminals (4mm pins).
- Easy to wire up and solidly connect to amplifier and passive speaker.
- If they do not fit, use a little force to tighten the plugs.
- Fosi Audio Banana Plugs (Copper, Silver/Gold Plated): http://bit.ly/40Djq0U, https://bit.ly/3MkPL8t
- Please watch tutorial videos: https://youtu.be/6pYhoqDlvNw / https://youtu.be/RGvBgGAwS9k
How to Diagnose Power Supply Failure?
- The following situations may cause this issue
- Case 1: The LED on the power supply does not light up; Case 2: Amp/Preamp does not turn on; Case 3: When plugged into the Amp, both light on the amp & power supply start blinking; Case 4: Amp/Preamp make noise; Case 5: Sound shuts off by itself
- Possible solution
- Check if the power supply is illuminated when plugged into AC by itself.
Plug power supply into a different socket.
Test the adapter with a meter.
Try a different power supply (within a range of DC input).
Test the included power supply on other electrical equipment.
Please watch the tutorial video by clicking on the link provided. https://youtu.be/yCjygS03zTE
What is a GaN?
- The GaN supply has a power output of 240W.
- Offers overload and over-temperature protection.
- The 48V 5A GaN power supply is also available on Amazon.