--- product_id: 45405278 title: "KT77, Matched Quad (4 tubes)" brand: "genalex gold lion" price: "β‚±35208" currency: PHP in_stock: true reviews_count: 8 category: "Genalex Gold Lion" url: https://www.desertcart.ph/products/45405278-kt77-matched-quad-4-tubes store_origin: PH region: Philippines --- # Clarity in mid-range frequencies Dynamic bass & extended highs Matched quad for perfect balance KT77, Matched Quad (4 tubes) **Brand:** genalex gold lion **Price:** β‚±35208 **Availability:** βœ… In Stock ## Summary > 🎡 Elevate your amp’s voice with the legendary Gold Lion roar! ## Quick Answers - **What is this?** KT77, Matched Quad (4 tubes) by genalex gold lion - **How much does it cost?** β‚±35208 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/45405278-kt77-matched-quad-4-tubes) ## Best For - genalex gold lion enthusiasts ## Why This Product - Trusted genalex gold lion brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Rich, Dynamic Bass:** Experience tight, full lows that bring your music to life with depth and punch. - β€’ **Precision Matched Quad:** Four tubes perfectly matched for plate current and transconductance, ensuring flawless sonic synergy. - β€’ **Crystal Clear Mid-Range:** Enhanced clarity in mid frequencies delivers vocals and instruments with stunning realism. - β€’ **Versatile Compatibility:** Ideal for Hi-Fi and guitar amps using EL34 tubes, upgrading your setup with premium tone. - β€’ **Extended Highs for Airy Soundstage:** Enjoy shimmering highs that expand your soundstage, creating an immersive listening experience. ## Overview The Genalex Gold Lion KT77 Matched Quad offers audiophiles and guitarists a premium upgrade with four perfectly matched tubes delivering tight bass, clear mids, and extended highs. Renowned for enhancing soundstage and tonal warmth, these tubes are a top choice for Hi-Fi and EL34-compatible guitar amplifiers, combining vintage quality with modern precision. ## Description The Genalex Gold Lion KT77 tubes have full, yet tight and dynamic lows. They have great clarity in the mid-range as well, and extended highs. Some of the best current production tubes made today. These tubes sound amazing in Hi-Fi amp as well as guitar amps that use EL34 tubes. Review: Love the tone these bring to my Willsenton R8 - First, I want to give a huge shoutout to Viva Tubes for their customer service and fast shipping. I had a tube that took some damage during shipping apparently, and Viva Tubes had a new replacement tube that is matched to my remaining KT77's shipped out the very same day. Wow!! I can only compare the sound of these GL KT77's to the stock cheap KT88's that shipped with my Willsenton R8 integrated stereo amplifier. The sound is slightly warmer and much smoother than before. The stock tubes could be a little too strident at some higher frequencies to the point that they nearly hurt my ears at times. Things became even more holographic with the GL KT77's than before, and I feel like the soundstage is even wider in every possible direction (my sound stage was amazing before, but these made a big difference). I'm definitely happy with my purchase, and just as happy with Viva Tubes. Those guys rock! Review: Really Nice Sound - After reading many reviews on desertcart and other technical forums I replaced the stock Chinese Shugang tubes in my Yaqin MC-10T with these Gold Lion tubes. I was very pleased with the results. The Gold Lion Tubes made the Yaqin sound a bit warmer and more robust while keeping that "You are there" soundstage that tube amplifiers are known for. I know there are significantly more expensive tubes out there but I haven't tried them so I can't compare them to the Gold Lions. All I can say is compared to the stock tubes, the Gold Lions improved the sound in my Yaqin and were well wort the cost. ## Features - Tight, dynamic bass, with a great mid-range and extended highs - Matched for both plate current and transconductance - Matched quad (4 tubes) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00WZHH7XY | | Best Sellers Rank | #26,502 in Musical Instruments ( See Top 100 in Musical Instruments ) #89 in Guitar Amplifier Tubes | | Body Material | Glass | | Color Name | Gold | | Customer Reviews | 4.2 4.2 out of 5 stars (35) | | Date First Available | May 1, 2015 | | Instrument Key | A | | Is Discontinued By Manufacturer | No | | Item Weight | 3.52 ounces | | Item model number | KT77 | | Material Type | glass | | Package Dimensions | 7.91 x 5.47 x 3.11 inches | ## Product Details - **Brand:** Genalex Gold Lion - **Color:** Gold - **Instrument Key:** A - **Material:** glass - **Style:** Modern ## Images ![KT77, Matched Quad (4 tubes) - Image 1](https://m.media-amazon.com/images/I/81s9VKTdvbL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Love the tone these bring to my Willsenton R8 *by E***C on November 22, 2023* First, I want to give a huge shoutout to Viva Tubes for their customer service and fast shipping. I had a tube that took some damage during shipping apparently, and Viva Tubes had a new replacement tube that is matched to my remaining KT77's shipped out the very same day. Wow!! I can only compare the sound of these GL KT77's to the stock cheap KT88's that shipped with my Willsenton R8 integrated stereo amplifier. The sound is slightly warmer and much smoother than before. The stock tubes could be a little too strident at some higher frequencies to the point that they nearly hurt my ears at times. Things became even more holographic with the GL KT77's than before, and I feel like the soundstage is even wider in every possible direction (my sound stage was amazing before, but these made a big difference). I'm definitely happy with my purchase, and just as happy with Viva Tubes. Those guys rock! ### ⭐⭐⭐⭐⭐ Really Nice Sound *by K***L on April 11, 2021* After reading many reviews on Amazon and other technical forums I replaced the stock Chinese Shugang tubes in my Yaqin MC-10T with these Gold Lion tubes. I was very pleased with the results. The Gold Lion Tubes made the Yaqin sound a bit warmer and more robust while keeping that "You are there" soundstage that tube amplifiers are known for. I know there are significantly more expensive tubes out there but I haven't tried them so I can't compare them to the Gold Lions. All I can say is compared to the stock tubes, the Gold Lions improved the sound in my Yaqin and were well wort the cost. ### ⭐⭐ Blown tubes after a couple hundred hrs *by A***R on November 19, 2025* Used in a PrimaLuna Evo 300 that is known for being tube-friendly. Really enjoyed the change in sound quality after 20 hrs break-in. After about 230 hours total use, one (or more) of the tubes went bad. Starting making extremely loud "tearimg" / buzzing sound in both channels. Switched back to stock tubes and the problem went away completely. Swapped the KT77s back in, and before the amp could even finish its warm-up cycle, it was making the horrendous sounds again that i feared could damage my speakers. Swapped the stock tubes back in again, and no problems in 20 hours of listening since. Never dropped a tube and they were treated with care. They're now relegated to my bookshelf as a "decoration." Money down the tubes (pun intended). ## Frequently Bought Together - Genalex Gold Lion KT77, Matched Quad (4 tubes) - WORLDS BEST CABLES 10 Foot - Guitar Bass Instrument Cable Custom Made Using Mogami 2524 Wire and Neutrik NP2X-B ΒΌ Inch (6.35mm) Straight Gold TS Connectors --- ## 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.ph/products/45405278-kt77-matched-quad-4-tubes](https://www.desertcart.ph/products/45405278-kt77-matched-quad-4-tubes) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-05-18*