Do they work well with Xduoo MT-602?

Yes. 1UA Tubes from Holden Coldfield will sound nice. Also i recommend try also 6j1p Svetlana from 1950-1960s should like this sound too. Cheers

Can this work with the FX Audio tube-01?

Yes, you can absolutely use these Voskhod tubes in your FX Audio Tube-01 amp!

Can be use on aiyima t9/douk audio st-01? if yes , what kind of improvments can you hear with this upgrade?, thanks

Yes. Just read review of our customers

Can I use this with my little dot mk iii,and what tube to take it out or replace from my mk iii, the 2 small tube in front or the 2 big tube in back

Yes, you can. Replace the front two tubes, the smaller ones.

Voskhod Rocket 6j1p Ev 6zh1p Ev Matched Pair

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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S/.428

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Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your sound with Russian precision and military-grade power!

PRECISION MATCHED PAIR - Each tube pair is tested and matched within 5% to ensure flawless stereo imaging and consistent performance.
MILITARY GRADE RELIABILITY - Stamped with the Russian OTK mark, guaranteeing durability and long-lasting high-frequency amplification.
ENHANCED SOUNDSTAGE CLARITY - Experience crystal-clear vocals, defined bass, and a wider 3D soundstage that transforms your listening sessions.
SEAMLESS UPGRADE COMPATIBILITY - Directly replaces popular tubes like EF95 and 6AK5, making it a no-fuss enhancement for your Little Dot and Little Bear amps.
EXCEPTIONAL VALUE FOR AUDIOPHILES - Unlock professional-grade audio improvements without breaking the bank—your gear deserves this upgrade.

The Voskhod Rocket 6J1P-EV / 6ZH1P-EV is a Russian-made high-frequency miniature pentode tube, designed as a direct replacement for EF95, 6AK5, and similar models. Featuring the OTK military-grade quality stamp, these tubes promise long life and superior reliability. Sold as a matched pair tested within 5% tolerance, they deliver enhanced sound clarity, improved bass definition, and a wider soundstage—making them a top-tier upgrade for Little Dot III/IV and Little Bear amplifiers.

Specifications

ASIN	B071H78DHZ
Best Sellers Rank	#31,919 in Musical Instruments ( See Top 100 in Musical Instruments ) #108 in Guitar Amplifier Tubes
Customer Reviews	4.6 4.6 out of 5 stars (163)
Date First Available	April 25, 2017
Item Weight	0.81 ounces
Item model number	6J1P-EV
Manufacturer	Voskhod
Product Dimensions	0.39 x 0.39 x 0.39 inches

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