I bought these tubes as a replacement for the tubes supplied with the little dot 1 amp. are they suitable? do i need to change any jumper settings?

No just change the VALVES. Bit better than originals.

Would these tubes be suitable for the nobsound hifi 6j2 vacuum tube preamplifier?

I got mine for an FX Audio preamp a very similar unit I think. They were a great replacement for the Chinese originals. Hope this helps.

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Pair (2 Tubes) 7 Pin GE Jan 5654W Fully-Tested Vacuum Tubes 5654/6 Ak5/6J1/6J1p/Ef95 Audio Amplifier Electron Tube Upgrade - 5654W Platinum Grade Pair

Product ID: 151262828

Details

Brand
Riverstone
Colour
Silver
Item length
1 Inches
Manufacturer
GE
Material
Glass
Maximum pressure
7 Bars

🔊Low noise audio upgrade

🎛️Matched pair <3% variance

🛡️Military-grade durability

₩180503

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Description

🎶 Elevate your sound with platinum-grade precision — don’t let your amp settle for less!

PRECISION MATCHED PAIR - Platinum grade tubes matched within 3% for plate current and conductance—ensuring flawless stereo balance.
AUDIOPHILE APPROVED SOUND - Tested at NOS levels with 4500+ micro-mho and 6.6mA+ plate current for crystal-clear, warm audio fidelity.
BACKED BY 3 YEAR WARRANTY - Confidence guaranteed with Riverstone Audio’s trusted warranty and rigorous life & sound testing.
DIRECT DROP IN REPLACEMENT - Seamlessly upgrade your 6J1, 6AK5, EF95, and related 7-pin tubes without compatibility worries.
MILITARY GRADE RELIABILITY - Heavy-duty GE Jan 5654W tubes built for longevity and consistent performance under demanding conditions.

This pair of GE Jan 5654W vacuum tubes offers audiophile-grade, low-noise performance with military-grade durability. Matched within 3% for plate current and conductance, these tubes deliver warm, clear sound and are guaranteed to meet or exceed NOS standards. Perfect direct replacements for 6J1, 6AK5, and EF95 tubes, they come backed by a 3-year warranty and rigorous quality testing, making them the ultimate upgrade for discerning audio professionals.

Specifications

ASIN	B01BFJDTW0
Best Sellers Rank	59,296 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 285 in Amplifier Accessories
Brand	Riverstone Audio
Colour	Silver
Customer Reviews	4.7 4.7 out of 5 stars (1,879)
Item Length	1 Inches
Item Type Name	vacuum tube
Manufacturer	GE
Material	Glass
Maximum Pressure	7 Bars
Nominal Wall Thickness	1.3 mm
UPC	763769918220
Unit Count	2.0 count

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₩180503

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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