# Riverstone Audio Tested/Matched Pair (2 Tubes) 7-Pin JAN 5654W Vacuum Tubes - Platinum Grade Upgrade for 6AK5 / 6J1 / EF95 **Brand:** Riverstone Audio **SKU:** fqq0815 **ASIN:** B01BFJDTW0 **Canonical URL:** https://crowcrowcrow.com/p/riverstone-audio-tested-matched-pair-tubes-7-pin-jan-5654w-fully-tested-vacuum-upgrade/fqq0815 **Category:** electronics **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹5,821 **Discount:** 39% **Customer rating:** 4.80/5 from 1,970 ratings ## Description Riverstone Audio Platinum Grade JAN 5654W vacuum tubes (matched pair) offer a low-noise upgrade for 6J1/6AK5/EF95. Tested, matched within 3%, with a 2-year warranty. Imported with duties included, delivered via ExpressBox. ## Highlights - Matched Pair for Optimal Sound — Each pair is precisely matched within 3% for plate current (ip) and mutual conductance (Gm), ensuring balanced stereo imaging and consistent audio performance. - Low-Noise Military-Grade Upgrade — JAN 5654W tubes are ruggedized for enhanced reliability and lower noise floor, providing a cleaner, more detailed audio signal compared to standard tubes. - Direct Replacement Compatibility — Guaranteed to directly replace 7-pin 6J1, 6J1P, 6AK5, 6AK5W, and EF95 tubes without modification. Check manufacturer specs for other substitutions. - 2-Year Warranty & NOS Guarantee — Backed by Riverstone Audio's 2-year warranty, these tubes are guaranteed to test at New Old Stock (NOS) levels, ensuring long-term performance. ## Key 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. ## Why choose this product **Elevate Your Audio with Vintage Precision** — Experience a noticeable improvement in your audio system's soundstage, clarity, and warmth with Riverstone Audio's Platinum Grade JAN 5654W vacuum tubes. These aren't just replacements; they're upgrades. Meticulously tested and matched within 3% for critical parameters like plate current and mutual conductance, they ensure balanced stereo output and a lower noise floor. Originally built to military specifications ('W' designation), they offer superior reliability and longevity. For audiophiles seeking that authentic, rich tube sound, these imported tubes provide a genuine upgrade over standard or generic alternatives, backed by a solid 2-year warranty. **Ideal for Tube Amp Enthusiasts, Skip if You Need New Production** — These tubes are perfect for owners of amplifiers, preamps, or DACs that use 7-pin 6J1, 6AK5, EF95, or compatible tubes and seek an audiophile-grade upgrade. If you prefer modern, mass-produced components or require tubes for non-audio applications, these vintage, matched pairs may not be your best choice. Always verify compatibility with your specific device manufacturer before purchasing. ## How to use 1. Ensure your amplifier, preamp, or DAC is powered off and unplugged from the mains. Consult your device's manual to locate the tube sockets and identify the correct tube type and orientation. — Prepare Your Audio Device 2. Gently grip the old tubes by their glass or base (avoiding bare finger contact with the glass) and pull them straight out of their sockets. If they are stuck, a gentle rocking motion may help. — Carefully Remove Old Tubes 3. Align the pins of the Riverstone Audio 5654W tubes with the socket holes, ensuring correct orientation. Push them in gently but firmly until fully seated. Do not force the tubes; if resistance is met, re-check alignment. — Install New Riverstone Audio Tubes 4. Plug your device back in, turn it on, and allow the tubes to warm up (typically 30 seconds to a few minutes). Listen for improved sound quality, reduced noise, and balanced stereo performance. — Power On and Test ## Product details | Field | Value | |---|---| | Application | Vacuum tube replacement for compatible audio equipment (amplifiers, preamps, DACs) | | Installation | Carefully insert tubes into matching 7-pin sockets. Ensure correct orientation. Consult your device manual. | | Testing | Each tube tested for Gm, ip, life test, and audio sound test. | | Warranty | 2-Year Riverstone Audio Warranty | | Cost per use | Estimated cost per month: ₹5,821 for daily use. | | Shelf life after opening | N/A (Durable electronic component) | | Reapplication math | N/A (Durable electronic component) | | Contraindications | DO NOT substitute for other 7-pin tube types unless approved by your audio device manufacturer. Amplifier damage can occur. | | Allergens / common irritants | N/A | | Brand | Riverstone Audio | | Model | Platinum Grade JAN 5654W Matched Pair | | Tube Type | 7-Pin Vacuum Tube | | Quantity | 2 Tubes (Matched Pair) | | Grade | Platinum Grade | | Condition | NOS (New Old Stock) Levels Guaranteed | | Plate Current (ip) | ≥ 6.5 mA (tested at 120V plate, -2.0V grid) | | Mutual Conductance (Gm) | ≥ 4500 micro-mho (tested at 120V plate, -2.0V grid) | | Matching Tolerance | Within 3% | | Direct Replacement For | 6J1, 6J1P, 6AK5, 6AK5W, EF95, 403B (verify with manufacturer for others) | | Material | Glass, Metal components | | Color | Silver (tube base), Clear (glass) | | Country of Origin | USA (vintage manufacture) | ## Frequently asked questions ### Will these Riverstone Audio 5654W tubes work with Indian power outlets? Vacuum tubes themselves do not directly interface with mains power; they operate within your audio device's circuitry. The compatibility depends on your amplifier or audio equipment, not the tubes. Ensure your device is compatible with India's 230V power supply or uses a suitable transformer. ### How do I know if these Riverstone Audio 5654W tubes are compatible with my amplifier? These 5654W tubes are guaranteed direct replacements for 7-pin 6J1, 6J1P, 6AK5, 6AK5W, and EF95 tubes. Amplifier damage can occur if you substitute the wrong type. Always consult your audio device manufacturer's specifications or manual to confirm compatibility before purchasing. ### What does 'matched pair' mean for these Riverstone Audio 5654W tubes? A 'matched pair' means both tubes in the set have been tested and are within 3% of each other for critical parameters like plate current (ip) and mutual conductance (Gm). This ensures balanced stereo performance and optimal sound quality from your audio equipment. ### Are these Riverstone Audio 5654W tubes new or used? These are guaranteed to test at New Old Stock (NOS) levels. While the tubes themselves are vintage (manufacture ended ~35 years ago), they are new in terms of performance and have not been previously used in audio equipment. They are tested for performance and reliability. ### What is the difference between 5654W and other 5654 tubes? The 'W' designation in 5654W signifies ruggedized, military-grade tubes. These were originally designed with enhanced quality control, better reliability, and improved performance characteristics compared to standard versions, making them a preferred choice for audiophiles. ### How do I install these Riverstone Audio 5654W tubes? Carefully insert the tubes into the corresponding 7-pin sockets on your audio device, ensuring correct orientation. Avoid touching the glass with bare fingers, as oils can affect performance; use a cloth or gloves. Consult your device's manual for specific installation instructions. ### What does 'Platinum Grade' mean for these Riverstone Audio tubes? 'Platinum Grade' indicates these tubes have undergone Riverstone Audio's most stringent testing and matching process. They are guaranteed to meet or exceed NOS levels for plate current and mutual conductance, with data labels showing measured values. ### Can I use these Riverstone Audio 5654W tubes in my DAC or headphone amplifier? Yes, if your DAC or headphone amplifier uses compatible 7-pin tubes such as 6J1, 6AK5, or EF95, these 5654W tubes can be used as an upgrade. Always confirm compatibility with your specific device's manufacturer specifications. ## Compliance No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging. ## Images 1. https://images.crowcrowcrow.com/B01BFJDTW0-0.webp 2. https://images.crowcrowcrow.com/B01BFJDTW0-3.webp 3. https://images.crowcrowcrow.com/B01BFJDTW0-6.webp 4. https://images.crowcrowcrow.com/B01BFJDTW0-9.webp 5. https://images.crowcrowcrow.com/B01BFJDTW0-12.webp 6. https://images.crowcrowcrow.com/B01BFJDTW0-15.webp --- Source: https://crowcrowcrow.com/p/riverstone-audio-tested-matched-pair-tubes-7-pin-jan-5654w-fully-tested-vacuum-upgrade/fqq0815 Returns: 14 days, free pickup, full refund on genuine issues. Shipping: Free across India, 21-24 days. Prices are all-inclusive (duties + GST).