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4.5 (123)

Fosi Audio Vacuum Tubes 7-Pin

Name: Fosi Audio Fosi Audio Vacuum Tubes 7-Pin - Fosi Audio Vacuum Tubes 7-Pin
Brand: Fosi Audio
SKU: 46818139603174
Price: 29.99 USD
Availability: InStock
Rating: 4.7143 (19 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$29.99

Quantity

Color

Black

Quantity

Description

Each package contains a pair of fully tested and matched vacuum tubes (2 PCS).
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 ...

Reviews

4.7

21 ratings

Great set of vacuum tubes!

I was able to change it my previous 5725W tubes with these 5654W tubes and the sound is awesome!

Mikal · 21 days ago

Sonic improvement

Replaced the factory tubes with these and it made a sound improvement I could here! Thanks.

Jazz · June 19, 2026

My opinion

Hi Fosi, The device sounds great, but the biggest drawback for me is the lack of an option to select the output signal. Both the RCA and headphone outputs are active at the same time. A switch between RCA and headphone output would be very useful. Possibly an option to have both active simultaneously as well, although I think that might not be necessary.

Jakub · March 20, 2026

Delivery & Returns

Fosi Audio

4.6 (3.8K)

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Description

Each package contains a pair of fully tested and matched vacuum tubes (2 PCS).
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 ...