--- product_id: 109787670 title: "Matched Pair (2 Tubes) JAN 5654W Fully-Tested Vacuum Tubes 6J1 / 5654 /6AK5/ EF95 / 6AK5 Tube Replacement" brand: "riverstone audio" price: "S$168" currency: SGD in_stock: true reviews_count: 11 category: "Riverstone Audio" url: https://www.desertcart.sg/products/109787670-matched-pair-2-tubes-jan-5654w-fully-tested-vacuum-tubes store_origin: SG region: Singapore --- # Matched within 3% precision Low-noise audio clarity 2-year warranty backed Matched Pair (2 Tubes) JAN 5654W Fully-Tested Vacuum Tubes 6J1 / 5654 /6AK5/ EF95 / 6AK5 Tube Replacement **Brand:** riverstone audio **Price:** S$168 **Availability:** βœ… In Stock ## Summary > 🎡 Elevate your sound with vintage precision and modern reliability! ## Quick Answers - **What is this?** Matched Pair (2 Tubes) JAN 5654W Fully-Tested Vacuum Tubes 6J1 / 5654 /6AK5/ EF95 / 6AK5 Tube Replacement by riverstone audio - **How much does it cost?** S$168 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/109787670-matched-pair-2-tubes-jan-5654w-fully-tested-vacuum-tubes) ## Best For - riverstone audio enthusiasts ## Why This Product - Trusted riverstone audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Authenticity & Trust:** Comes with Riverstone Audio QC labels and backed by a no-nonsense 2-year warranty for peace of mind. - β€’ **Precision Matched Pair:** Each tube pair is matched within 3% for plate current and mutual conductance, ensuring flawless audio consistency. - β€’ **Military-Grade Reliability:** Ruggedized JAN 5654W tubes with enhanced durability and quality control for long-lasting performance. - β€’ **Audiophile-Grade Sound Upgrade:** Experience a 20-30% boost in warmth, bass, and treble clarity over stock tubesβ€”your sound, elevated. - β€’ **NOS-Level Performance Guaranteed:** Tested to exceed 4500 micro-mho Gm and 6.6 mA plate current, delivering vintage tube excellence. ## Overview The Riverstone Audio JAN 5654W matched pair vacuum tubes are premium, low-noise 7-pin tubes designed as direct replacements for 6J1, 6AK5, and EF95 types. Matched within 3% for plate current and mutual conductance, these military-grade tubes deliver NOS-level performance with enhanced warmth, bass, and treble clarity. Backed by a 2-year warranty and rigorous testing, they offer audiophiles a reliable upgrade for superior sound quality. ## Description 5654W tubes are a direct substitute for 7-pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W, EF95 and 403B tubes. For other substitutions, check with your amplifier manufacturer - amplifer damage can occur if the wrong type of tubes are used. Plate current and Gm for the tubes are matched to within 3%. We guarantee that these tested/matched 5654W tubes will test at NOS levels, with Gm above 4500 micro-mho and a plate current (ip) of 6.5 mA or higher (Amplitrex tested in fixed-bias mode at plate and screen voltages of 120 V and grid voltage of -2.0 V). The vacuum tubes are carefully packed for shipping and will have Riverstone Audio name, logo and QC labels on the boxes. The 5654W vacuum tubes are backed by Riverstone Audios 2-year warranty. 5654W tubes were originally designed as a low-noise upgrade for 6AK5 and EF95 vacuum tubes. The "W" designation refers to ruggedized military-grade tubes with better quality control and enhanced reliability. These vintage tubes have found new life as a replacement for 6J1, 6J1P (6ZH1P-EV), 6AK5 and EF95 tubes and are used by audiophiles for improved sound quality. Review: GOOD - 5 Stars for a Rs.3000/- upgrade. Changed the stock tubes on my Aiyima T2 preamp. The result is awesome. To my ears the improvements are 20% warmth, treble 25% and bass 30% comparing the stock tubes(6J-?). Little bit muddy on MID but on some files only. Review: Genuine seller, genuine product and it's just wow - The seller delivered genuine product. I've heard the GE tubes making a huge difference and they are indeed a wow. I was blown away with the bass as well as warmth. ## Features - Tested and matched pair (2 tubes) of low-noise 7-Pin NIB/NOS JAN 5654W Vacuum Tubes. Considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. - Our platinum Grade 5654W vacuum tubes are matched within 3% for both plate current (ip) and mutual conductance (Gm) and are backed by a no-nonsense 2-year warranty. - We guarantee that the 5654W tubes selected for our Platinum Grade matched pairs test at NOS levels at or above 4500 micro-mho with a plate current of 6.6 mA or higher. All tubes must also pass a specialized life test and an audio sound test. - Riverstone Audio Platinum Grade tubes are provided with data labels showing measured ip and Gm. - Amplifier damage can occur if you substitute the wrong type of tube. 5654W tubes should only be used to directly replace 7-Pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W and EF95 tubes. DO NOT substiture for other types of 7-pin vacuum tube unless approved as a substitute by the manufacturer of your audio device. - For JAN 5654W tubes, water-based silk-screen printing was used for final tube-markings; the green-color print may be faded or partially missing due to the age of the tubes (the manufacture of 5654W tubes ended approx. 35 years ago). Determing the authenticity of a 5654W tube is realtively straightforward, as both "5654" and "USA" were etched into the glass during the manufacture process (this can be seen in one of the listing images). The final green-color print was used to denote additional details such, including "JAN 5654W", "Made in USA", factory logo, date-code and other tube specifications such as the "JAN" (Joint Army Navy) miltary-use designation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01BFJDTW0 | | Best Sellers Rank | #17,225 in Musical Instruments ( See Top 100 in Musical Instruments ) #42 in Amplifier Accessories | | Brand | Riverstone Audio | | Brand Name | Riverstone Audio | | Colour | multicolour | | Country of Publication | USA | | Customer Reviews | 4.8 out of 5 stars 1,871 Reviews | | Item Type Name | vacuum tube | | Manufacturer | Riverstone_Audio | | Manufacturer Warranty Description | no warranty available | | Material | Glass | | Material Type | Glass | | Maximum Pressure | 7 Bars | | Nominal Wall Thickness | 1.3 mm | | UPC | 763769918220 | | Unit Count | 2.0 Count | ## Product Details - **Brand:** Riverstone Audio - **Colour:** multicolour - **Manufacturer:** Riverstone_Audio - **Material:** Glass - **Maximum Pressure:** 7 Bars - **Nominal Wall Thickness:** 1.3 mm - **UPC:** 763769918220 ## Images ![Matched Pair (2 Tubes) JAN 5654W Fully-Tested Vacuum Tubes 6J1 / 5654 /6AK5/ EF95 / 6AK5 Tube Replacement - Image 1](https://m.media-amazon.com/images/I/91RgarCU-zL.jpg) ![Matched Pair (2 Tubes) JAN 5654W Fully-Tested Vacuum Tubes 6J1 / 5654 /6AK5/ EF95 / 6AK5 Tube Replacement - Image 2](https://m.media-amazon.com/images/I/81pms7EbIsL.jpg) ![Matched Pair (2 Tubes) JAN 5654W Fully-Tested Vacuum Tubes 6J1 / 5654 /6AK5/ EF95 / 6AK5 Tube Replacement - Image 3](https://m.media-amazon.com/images/I/81uoRFnU5hL.jpg) ![Matched Pair (2 Tubes) JAN 5654W Fully-Tested Vacuum Tubes 6J1 / 5654 /6AK5/ EF95 / 6AK5 Tube Replacement - Image 4](https://m.media-amazon.com/images/I/91bfDbzEOCL.jpg) ![Matched Pair (2 Tubes) JAN 5654W Fully-Tested Vacuum Tubes 6J1 / 5654 /6AK5/ EF95 / 6AK5 Tube Replacement - Image 5](https://m.media-amazon.com/images/I/71T7KS7K9EL.jpg) ## Questions & Answers **Q: Is it works with nfj & fx audio tube 03 preamplifier** A: It's a great direct replacement for the 6J1 tube. Definitely improves sound quality ## Customer Reviews ### ⭐⭐⭐⭐⭐ GOOD *by T***A on 15 October 2024* 5 Stars for a Rs.3000/- upgrade. Changed the stock tubes on my Aiyima T2 preamp. The result is awesome. To my ears the improvements are 20% warmth, treble 25% and bass 30% comparing the stock tubes(6J-?). Little bit muddy on MID but on some files only. ### ⭐⭐⭐⭐⭐ Genuine seller, genuine product and it's just wow *by A***R on 3 February 2022* The seller delivered genuine product. I've heard the GE tubes making a huge difference and they are indeed a wow. I was blown away with the bass as well as warmth. ### ⭐⭐⭐⭐⭐ Great Sounding valves! *by S***E on 7 August 2020* I always use these to replace the chinese 6J1 tubes that come with the pre-amps. There is a complete change in the sound quality with these JAN 5654 (GE) tubes: the bass is great and the trebles crisp. ## Frequently Bought Together - Riverstone Audio - Tested/Matched Pair (2 Tubes) 7-Pin JAN 5654W Fully-Tested Vacuum Tubes - Upgrade for 6AK5 / 6J1 / 6J1P / EF95 - JAN 5654W Platinum Grade Pair - Fosi Audio Box X2 Phono Preamp, Mini Stereo Audio Hi-Fi Preamplifier with Gain Gear, Pre-Amplifier for MM Turntable Phonograph and Record Player, with DC 12V Power Supply - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/109787670-matched-pair-2-tubes-jan-5654w-fully-tested-vacuum-tubes](https://www.desertcart.sg/products/109787670-matched-pair-2-tubes-jan-5654w-fully-tested-vacuum-tubes) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-08-12*