--- product_id: 95367666 title: "BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter" brand: "reisong" price: "5816.21 DT" currency: TND in_stock: true category: "Reisong" url: https://www.desertcart.tn/products/95367666-boyuurange-a20-hi-fi-intergrated-amplifier-kt88-tube-single-end store_origin: TN region: Tunisia --- # 0.35 core transformer for stable power 16W max output power KT88 power tubes for rich sound BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter **Brand:** reisong **Price:** 5816.21 DT **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your audio game with vintage power and modern precision! ## Quick Answers - **What is this?** BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter by reisong - **How much does it cost?** 5816.21 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/95367666-boyuurange-a20-hi-fi-intergrated-amplifier-kt88-tube-single-end) ## Best For - reisong enthusiasts ## Why This Product - Trusted reisong brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Run-In Ready:** Unlock peak performance after 30-100 hours of burn-in—customize your sonic signature. - • **Iconic KT88 Tubes:** Harness the legendary KT88 tubes for deep, dynamic sound that commands attention. - • **Pure Class A Power:** Experience warm, distortion-free audio with single-end Class A amplification. - • **Precision Power Supply:** Imported 0.35 core transformers ensure rock-solid, stable power delivery. - • **Sleek & Durable Design:** Mirror stainless steel chassis with double-layer protection for lasting elegance. ## Overview The BOYUURANGE A20 Hi-Fi Integrated Amplifier combines classic KT88 tubes with advanced 0.35 core transformers to deliver a powerful 16W output in pure Class A single-end design. Featuring a durable mirror stainless steel chassis and precision components like the 6J8P-J preamp tube and medical-grade rectifier, this amp promises rich, distortion-free sound. Ideal for audiophiles ready to invest in a burn-in period to unlock its full sonic potential. ## Description You should take about 30-100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method. Specifications of Boyuurange A20 tube amp: FTC Power Output Rating: 3W + 3W (20Hz - 20kHz, 8 ohms, THD+N: 1%) Output Power rating (not tested under the FTC standard): 8W * 2 (Ultra-linear connection) Frequency response: 20Hz-35KHz Harmonic distortion: 0.5%（1W/1kHz，Output Power rating <5%） Output Impedance: 4,8Ω Input Sensitivity: 750MV SNR: 89dB Input impedance: 100KΩ (three sets of input signal) Voltage amplification: Dawn 6J8PJ × 2. Power output tube: KT88 (Brand Shuguang or PSVANE to choose) × 2. Rectifier tube: 5Z3PA-T × 1 Dimensions (W × D × H): 366 × 300 (including knob) × 185mm Weight: about 16.5 kg (114 power transformers, export version) Gross weight: 20kg Power Supply Voltage: AC 110V-120V/50Hz-60Hz Features: With power tube current monitoring circuit, tube replacement upgrade ease. Medical grade 5Z3PA-T rectification. Imported 0.35 core output amplifier audio dedicated core, core stack thickness 86-50, A20 flux of 13,000 Output transformer potting techniques, ensure that the output of the amplifier stability and reliability Double chassis design，not easy deformed. Output amplifier with a new imported 0.35 core manufacturing, high-purity copper wire package enameled, layered segmentation, string and connection method Imported 0.35 thick core manufacturing power amplifiers Output amplifier with high-grade stretch amplifier housing cover. Power Transformers: new imported 0.35, stack thickness 60MM (114-60). Output amplifier core: core 0.35 new imported thick high silicon (86-50). Japanese production of A-L-P-S potentiometer. Chassis: mirror stainless steel chassis. ## Features - KT88-98 power output. - 6J8P-J pre-voltage amplification. - The new power amplifier 0.35 cores do to ensure stable power supply. - Output power, maximum output power of 8W+8W. - Output amplifier uses no big loop feedback technology to ensure high sound reduction, powerful ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07L5CRQ7T | | Best Sellers Rank | #638,256 in Electronics ( See Top 100 in Electronics ) #3,407 in Audio Component Amplifiers | | Brand Name | REISONG | | Customer Reviews | 4.1 4.1 out of 5 stars (21) | | Item Dimensions | 14.41 x 11.81 x 7.28 inches | | Item Weight | 18 kg | | Manufacturer | Reisong | | Material Type | mirror stainless steel | | Maximum Output Power | 16 watts | | Maximum Supply Voltage | 120 volts | | Minimum Supply Voltage | 110 volts | | Model | Reisong-A20-4ND-VU Meter | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Number of Items | 1 | | Output Power | 16 watts | | Package Type Name | box | | Part Number | Reisong-A20-4ND-VU Meter | | Specification Met | Ftc | | Voltage | 120 volts | ## Product Details - **Item dimensions L x W x H:** 14.41 x 11.81 x 7.28 inches - **Manufacturer:** Reisong - **Maximum Supply Voltage:** 120 volts - **Minimum Supply Voltage:** 110 volts - **Voltage:** 120 volts ## Images ![BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter - Image 1](https://m.media-amazon.com/images/I/41ast1XS7jL.jpg) ![BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter - Image 2](https://m.media-amazon.com/images/I/41SKgHZlKKL.jpg) ![BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter - Image 3](https://m.media-amazon.com/images/I/41S64yNeBUL.jpg) ![BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter - Image 4](https://m.media-amazon.com/images/I/51t3KIXLfTL.jpg) ![BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter - Image 5](https://m.media-amazon.com/images/I/41NFjldjTlL.jpg) ## Questions & Answers **Q: Does it have a phono stage?** A: I like it, **Q: Does this amp have an Auto Bias circuit?** A: It must have Auto Bias because there is no where to manually bias the tubes....Great amp for the money. **Q: Can i connect a tuner on aux?** A: The auxiliary and cd can be interchanged. I connected a dac to my auxiliary to play from my computer. So my answer is no harm in trying **Q: When your done listing to music, and you turn the a20 "off", are you suppose to turn it back "on" again for 5 minutes??** A: Turning tubes off and then immediately back on can shorten the life of the tubes. Giving it a few minutes to cool back down before turning them back on is a good idea. That's what they're talking about. ## Frequently Bought Together - Reisong - BOYUURANGE A20 Hi-Fi Intergrated Amplifier KT88 Tube Single-end Class A 4ND VU Meter - Douk Audio HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO) - GEARit RCA Cable (25FT) 2RCA Male to 2RCA Male Stereo Audio Cables Shielded Braided RCA Stereo Cable for Home Theater, HDTV, Amplifiers, Hi-Fi Systems, Car Audio, Speakers, 25 Feet --- ## 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.tn/products/95367666-boyuurange-a20-hi-fi-intergrated-amplifier-kt88-tube-single-end](https://www.desertcart.tn/products/95367666-boyuurange-a20-hi-fi-intergrated-amplifier-kt88-tube-single-end) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-23*