Vacuum Tubes 7-Pin 5654W Upgrade for 6AK5 6J1 6J1P EF95 6k4 replacement tubes

$21.99 USD
$21.99 USD
$21.99 USD
Tax included. Shipping calculated at checkout.

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Customer Reviews

Based on 6 reviews
83%
(5)
17%
(1)
0%
(0)
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G
Grizz
Tube Roll

As was mentioned previously, I also feel these tubes tame the upper frequencies. I like that they are shorter than the stock tubes too. I started to use this preamp after letting it sit for quite some time. I'm using it on a Yamaha R-N303. The receiver has a built-in phono stage but I needed to move my turntable away from the speaker area so I hooked up the Fosi Preamp and I am using a longer RCA cable to the receiver.

I was really surprised how much better this preamp performed. When I saw that there is an "upgrade" for tubes, I decided to give them a try. I'm happy with it.

Z
Zlatogor Minchev

valves_tubes_change

k
krishna Reddy Mittapalli
excellent

super

J
Jay Fraser
Continued Excellence....But One Question....

Fosi continues to deliver on customer service with fast, free shipping and great communication when I do have questions. The new tubes arrived quickly, but I have one question. Printed directly on the tubes it says, "Made In U.S.A." but the label on the box says, "Made In China". Which is it? Thank you.

M
Martin Ludvik
GE tubes 5654W

Definitile good thing to upgrade stock tubes. GE 5654 sounds audibly better!!!

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