--- product_id: 678655836 title: "Oilily A88MK KT88 X4 Tube Amplifier, 45W+45W Class AB, Vacuum Tube Integrated Amplifierwith Triode & Ultra-Linear Mode, High-Fidelity Sound for Audiophiles (Black)" brand: "oilily" price: "VT670507" currency: VUV in_stock: true reviews_count: 4 category: "Oilily" url: https://www.desertcart.vu/products/678655836-oilily-a88mk-kt88-x4-tube-amplifier-45w-45w-class-ab store_origin: VU region: Vanuatu --- # 45W+45W Class AB power Dual Triode & Ultra-Linear modes Handcrafted point-to-point soldering Oilily A88MK KT88 X4 Tube Amplifier, 45W+45W Class AB, Vacuum Tube Integrated Amplifierwith Triode & Ultra-Linear Mode, High-Fidelity Sound for Audiophiles (Black) **Brand:** oilily **Price:** VT670507 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your audio game with timeless tube power — because your playlist deserves the best! ## Quick Answers - **What is this?** Oilily A88MK KT88 X4 Tube Amplifier, 45W+45W Class AB, Vacuum Tube Integrated Amplifierwith Triode & Ultra-Linear Mode, High-Fidelity Sound for Audiophiles (Black) by oilily - **How much does it cost?** VT670507 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/678655836-oilily-a88mk-kt88-x4-tube-amplifier-45w-45w-class-ab) ## Best For - oilily enthusiasts ## Why This Product - Trusted oilily brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Tube Tuning:** External bias meter and tube-rolling support let you customize performance with ease and confidence. - • **Seamless Connectivity:** Gold-plated inputs and remote control ensure flawless integration and effortless control in your setup. - • **Audiophile-Grade Power:** Delivers a robust 45W per channel in Class AB for rich, dynamic sound that fills any room. - • **Tailor Your Soundscape:** Switch effortlessly between Triode mode for warm vocals and Ultra-Linear mode for punchy, vibrant tracks. - • **Built to Impress & Last:** Elegant blue-black chassis with protective tube cage and durable ALPS motorized potentiometer for long-term reliability. ## Overview The Oilily A88MK KT88 X4 is a premium 45W+45W Class AB vacuum tube amplifier featuring handcrafted point-to-point soldering and high-quality KT88/EL34 tubes. It offers dual sound modes—Triode for smooth, intimate tones and Ultra-Linear for dynamic, detailed playback—plus precise bias tuning and versatile connectivity with gold-plated inputs and remote control. Designed for audiophiles seeking both sonic excellence and elegant build quality, this amplifier combines vintage craftsmanship with modern convenience. ## Description desertcart.com: Oilily A88MK KT88 X4 Tube Amplifier, 45W+45W Class AB, Vacuum Tube Integrated Amplifierwith Triode & Ultra-Linear Mode, High-Fidelity Sound for Audiophiles (Black) : Electronics Review: EXCELLENT Quality and Sound - Amazing quality and sound. Knobs and switches are super high quality and feel great, especially the volume knob. I use ultra linear mode for fast transient or bass heavy music. I don’t have great ears, but my golden-eared wife says ultra linear mode has better instrument separation while triode mode gels everything together. Tube biasing is super easy to do. I don’t have much need for balanced input though I do have balanced cables so I am using them anyway but I have no clue if it makes any difference. Similar models have a subwoofer output and I almost wish I would have chosen one of them, but I chose the A88 for its looks. It does look amazing in person and is much bigger and heavier than I expected, so do make sure that it will fit in your setup. Another useful feature is the “main in” input which you can use to incorporate this amp into your home theater system. My only two complains are that the VU needles are a little hard to see against the black background, and the knob indicators are also hard to see or feel in low light. Would have been great to have a little notch or something tactile to feel where the knobs are turned to for input selector and volume. Would be great to have a clearer visual cue as well, either a darker marking or better yet an LED that you can see even in the dark. Review: Sound - Tube based class AB amplification, at this price point, beats class A tube amps for usability over a broad range of music styles and recordings. This amp is switchable from triode to linear mode. Triode mode is closer to class A circuitry, the linear mode is linear tube class AB sound. It responds quicker to voltage variations in dynamic music, so the peaks are reproduced with the recorded edges being right there. Think Ramones vs Coltrane. Coltrane's Love Supreme needs a slower and more rounded output, using triode mode. Ramones sound better on linear, edgy, not round. This is better than it costs and customer service is great ## Features - Pure Sound, Craftsmanship Masterpiece: The Oilily A88 tube amplifier offers an all-vacuum tube design with handcrafted point-to-point soldering, providing audiophiles with an unparalleled musical experience. Equipped with 6SL7, 6SN7, and high-quality KT88/EL34 tubes, it delivers a powerful 14W per channel, ensuring rich and detailed sound that accommodates a variety of musical styles. - Dual Mode Sound Control: The A88 features Triode Mode and Ultra-Linear Mode, allowing you to tailor the sound to the music genre. In Triode Mode, the sound is soft and pure, ideal for vocals and strings; Ultra-Linear Mode opens up dynamic, large-scale sound, perfect for energetic and vibrant music. - Precise Tuning with Easy Control: With an external bias adjustment meter, you can easily monitor and fine-tune the bias to maintain optimal performance of the output power tubes. The A88 also supports external selection between KT88 and EL34 tubes, giving tube enthusiasts the joy of endless tube-rolling options. - Excellent Connectivity & Convenience: Supporting multiple audio inputs, the A88 ensures seamless connectivity with thick gold-plated signal inputs and speaker outputs for lossless transmission. Equipped with an infrared full-function remote control, you can adjust volume and settings from a distance for a comfortable listening experience. - Reliability & Durability: The amplifier includes a mute delay protection function, ensuring a safe start-up process by preheating the tubes to avoid noise interference. The Japanese ALPS motorized potentiometer guarantees long-term stability for precise volume control. - Elegant Design, Sturdy Build: Measuring 441 × 300 × 300mm and weighing 36kg, the A88 features a blue-black chassis and a vacuum tube protective cage that not only shields the internal components but also adds a touch of elegance. Whether for sound quality or aesthetics, the A88 is the perfect addition to your high-end audio system. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DL2C532L | | Best Sellers Rank | #163,796 in Electronics ( See Top 100 in Electronics ) #1,023 in Audio Component Amplifiers | | Customer Reviews | 4.7 4.7 out of 5 stars (6) | | Date First Available | October 26, 2024 | | Item Weight | 61.7 pounds | | Item model number | A88 | | Manufacturer | Oilily | | Package Dimensions | 22.45 x 20.47 x 15.35 inches | ## Images ![Oilily A88MK KT88 X4 Tube Amplifier, 45W+45W Class AB, Vacuum Tube Integrated Amplifierwith Triode & Ultra-Linear Mode, High-Fidelity Sound for Audiophiles (Black) - Image 1](https://m.media-amazon.com/images/I/51y8YjXF-7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ EXCELLENT Quality and Sound *by A***. on June 27, 2025* Amazing quality and sound. Knobs and switches are super high quality and feel great, especially the volume knob. I use ultra linear mode for fast transient or bass heavy music. I don’t have great ears, but my golden-eared wife says ultra linear mode has better instrument separation while triode mode gels everything together. Tube biasing is super easy to do. I don’t have much need for balanced input though I do have balanced cables so I am using them anyway but I have no clue if it makes any difference. Similar models have a subwoofer output and I almost wish I would have chosen one of them, but I chose the A88 for its looks. It does look amazing in person and is much bigger and heavier than I expected, so do make sure that it will fit in your setup. Another useful feature is the “main in” input which you can use to incorporate this amp into your home theater system. My only two complains are that the VU needles are a little hard to see against the black background, and the knob indicators are also hard to see or feel in low light. Would have been great to have a little notch or something tactile to feel where the knobs are turned to for input selector and volume. Would be great to have a clearer visual cue as well, either a darker marking or better yet an LED that you can see even in the dark. ### ⭐⭐⭐⭐⭐ Sound *by T***Y on January 30, 2025* Tube based class AB amplification, at this price point, beats class A tube amps for usability over a broad range of music styles and recordings. This amp is switchable from triode to linear mode. Triode mode is closer to class A circuitry, the linear mode is linear tube class AB sound. It responds quicker to voltage variations in dynamic music, so the peaks are reproduced with the recorded edges being right there. Think Ramones vs Coltrane. Coltrane's Love Supreme needs a slower and more rounded output, using triode mode. Ramones sound better on linear, edgy, not round. This is better than it costs and customer service is great ### ⭐⭐⭐⭐⭐ Great sk *by R***Y on May 30, 2025* Very sweet sounding amp! Great packaging. Have a problem , it blew a fuse after a few hours and I changed the fuse turned it on and one tube blew, glowed white and amp shut off again. Hoping customer service reaches out as they are Bit hard to find ! ## Frequently Bought Together - Oilily A88 KT88 X4 Tube Amplifier, 45W+45W Class AB, Vacuum Tube Integrated Amplifierwith Triode & Ultra-Linear Mode, External Bias Adjustment, High-Fidelity Sound for Audiophiles (Black) - Amazon Basics 2 RCA Audio Cable for Amplifier,Active Speakers or Subwoofer with Gold-Plated Plugs, 4 Feet, Black - Micca 14 Gauge Pure Copper Speaker Wire, 6 Feet (2 Meters 6.6ft Actual), 2 Pack Pair, Gold Plated Banana Plugs, Soldered Construction, Slim Design, 245 Strands, for Stereo or Home Theater --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/678655836-oilily-a88mk-kt88-x4-tube-amplifier-45w-45w-class-ab](https://www.desertcart.vu/products/678655836-oilily-a88mk-kt88-x4-tube-amplifier-45w-45w-class-ab) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-06*