Lansing Audio Stereo Amplifier 300B Master
$5,445.45
⚠️ IMPORTANT NOTICE ⚠️ This amplifier is sold WITHOUT TUBES. Due to the wide variety of tube types available, we sell only the amplifier chassis. Tubes must be purchased separately to match your specific audio preferences. Lansing Audio Signature Design Classic Meets Modern Aesthetics The 300B Master features our distinctive...
⚡ TECHNICAL SPECIFICATIONS ⚡
🔊 Audio Performance
| Rated Power Output: | 15W + 15W (4Ω, 8Ω, 16Ω) |
| Total Harmonic Distortion: | 0.1% (1kHz, 1W) 0.5% (20Hz-20kHz, 1W) |
| Frequency Response: | 20Hz - 20kHz (±0-1dB) |
| Input Sensitivity: | 400mV / 15W |
| Input Impedance: | 100kΩ |
🔌 Connectivity & Power
| Audio Inputs: | 3 × RCA Pairs 1 × XLR Balanced |
| Speaker Outputs: | 4Ω, 8Ω, 16Ω (Independent) |
| Power Supply: | 115V/230V, 50/60Hz |
| Power Consumption: | 215W Max, 180W Idle |
| Volume Control: | 39-Step Electronic |
🔥 Vacuum Tubes
| Power Tubes: | 4 × 300B (Matched Quad) |
| Driver Tubes: | 2 × 6SN7 |
| Rectifier Tubes: | 2 × GZ34 (5U4G for 12W) |
| Bias System: | Intelligent Auto-Bias |
| Circuit Topology: | Pure Class A, Zero Feedback |
📐 Physical Specifications
| Dimensions (W×H×D): | 550×240.5×409mm |
| Weight: | 31.5kg (69.4 lbs) |
| Chassis Material: | Premium Aluminum + Walnut Wood |
| Finish: | Natural Walnut Wood |
| Thermal Management: | Natural Convection |
| Included Accessories: | Walnut Remote + Power Cable |
🏆 Premium 300B Features
🎵 Single-Ended Triode Magic:
- Pure Class A operation (15W per channel)
- Zero negative feedback design
- Direct-heated triode warmth
- Exceptional harmonic richness
🔧 Audiophile Components:
- Hand-wound 6-layer transformers
- German oil-filled capacitors
- Silver-plated internal wiring
- 80% in-house manufacturing
🎼 THE 300B LEGEND
Why 300B is the King of Tubes
• Legendary Sound: The 300B tube is revered worldwide for its magical midrange and natural musicality
• Direct-Heated Triode: Provides the most direct signal path for unparalleled transparency
• Single-Ended Design: Eliminates crossover distortion for pure, uncolored sound
• Harmonic Richness: Creates the warm, tube sound that audiophiles cherish
🎯
15W
Pure Class A Power
🔥
4×300B
Legendary Tubes
🎵
SET
Single-Ended Triode
🛡️ LANSING AUDIO GUARANTEE
🏆
3 Years
Comprehensive Warranty
📦
Professional
Packaging & Shipping
🔧
Expert
Technical Support
🚚 Global Shipping Information
• Fast Processing: All orders shipped within 24 hours of payment confirmation
• Secure Transit: Professional courier services ensure safe delivery worldwide
• Delivery Timeline: 10-22 days to most destinations (customs processing may extend delivery)
• Important Note: Import duties, taxes, and charges are buyer's responsibility
🎯 MASTER ENGINEER SIGNATURE
Designed in 🇯🇵 Japan and manufactured in 🇻🇳 Vietnam, the 300B Master represents the pinnacle of single-ended triode amplification, combining legendary 300B tube magic with modern engineering excellence.
Under the expert guidance of Johnny Trịnh, this amplifier embodies the pure essence of tube sound - warm, musical, and emotionally engaging. Every component has been carefully selected to preserve the natural beauty of the 300B's legendary voice.
"Experience the soul of music through the legendary 300B - where every note tells a story."
🌟 The Ultimate 300B Experience
300B Master - Where legendary tubes meet masterful engineering
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Description
⚠️ IMPORTANT NOTICE ⚠️
This amplifier is sold WITHOUT TUBES. Due to the wide variety of tube types available, we sell only the amplifier chassis. Tubes must be purchased separately to match your specific audio preferences.
Lansing Audio Signature Design
Classic Meets Modern Aesthetics
- The 300B Master features our distinctive wide and low-profile design philosophy, combining premium natural walnut wood construction with precision-machined aluminum components. This unique aesthetic approach represents the perfect marriage of classical elegance and contemporary sophistication that has become synonymous with Lansing Audio craftsmanship. The wide chassis design not only provides exceptional visual appeal but also serves critical functional purposes, offering superior heat dissipation and optimal component spacing for maximum performance. The low-profile silhouette ensures seamless integration into any audio system while maintaining the commanding presence that discerning audiophiles expect. Every curve and angle has been meticulously designed to complement both vintage and modern audio environments, making this amplifier a timeless centerpiece that transcends fleeting design trends. The harmonious blend of natural walnut grain and brushed aluminum surfaces creates a visual symphony that mirrors the sonic excellence within, establishing the 300B Master as the ultimate expression of audiophile luxury.
LANSING AUDIO HANDCRAFTED EXCELLENCE
80% In-House Component Manufacturing
- At Lansing Audio, we maintain unprecedented control over quality by manufacturing 80% of all components in-house, from precision capacitors to custom-wound cables specifically designed for the legendary 300B tube amplifier. Every component undergoes meticulous handcrafted production processes that ensure consistency, reliability, and sonic excellence that mass-produced alternatives simply cannot match. Our dedicated craftsmen employ time-honored techniques combined with modern precision tools to create components that exceed industry standards and complement the unique characteristics of the 300B triode. From the smallest resistor to the largest output transformer, each element is individually inspected and tested before integration into the final amplifier. This comprehensive in-house manufacturing approach allows us to maintain strict quality control while implementing proprietary designs that optimize the warm, musical performance characteristics that make the 300B tube legendary. The result is an amplifier where every component works in perfect harmony, creating a synergistic effect that elevates the overall sonic performance far beyond what would be possible with off-the-shelf components.
Lansing Audio German Engineering
Premium German-Made Capacitors
- Our capacitors represent the pinnacle of German engineering excellence, featuring aluminum housings with copper foil immersed in specially formulated oil, all manufactured at our dedicated facility in Germany specifically for 300B tube amplifier applications. These premium components undergo rigorous quality control processes that ensure exceptional performance characteristics and long-term reliability in the demanding environment of high-end tube amplification. The aluminum housing provides superior electromagnetic shielding while the copper foil construction delivers unparalleled conductivity and minimal signal degradation that preserves the natural warmth and musicality of the 300B triode. The proprietary oil formulation, developed exclusively for Lansing Audio, offers optimal dielectric properties that enhance the sonic clarity and reduce unwanted resonances that could interfere with the 300B's legendary midrange performance. Every capacitor, from the smallest coupling component to the largest power supply filter, is manufactured to our exacting specifications using traditional German precision manufacturing techniques that have been refined over decades of experience in high-end audio applications.
Lansing Audio Innovation
Intelligent Auto-Bias Technology
- The 300B Master incorporates our revolutionary intelligent auto-bias system specifically calibrated for the unique operating characteristics of the legendary 300B triode, continuously monitoring and automatically adjusting the current flow through each tube to maintain optimal performance. This sophisticated system employs advanced sensing circuits that detect minute changes in 300B tube characteristics and instantly compensate to maintain the precise operating conditions that maximize the tube's renowned warm, musical sound signature. Unlike traditional bias systems that require manual adjustment and can drift over time, our intelligent system ensures that each 300B tube operates at its precise optimal point throughout its entire lifespan, preserving the magical midrange and harmonic richness that has made the 300B the most revered tube in audio history. The system continuously analyzes tube performance parameters including plate current, grid voltage, and cathode temperature, making real-time adjustments that maintain perfect balance between all tubes while preserving the natural, unforced character that defines exceptional 300B amplification.
Lansing Audio Precision
39-Step Electronic Volume Control
- The volume control system represents a masterpiece of precision engineering, featuring a custom-designed electronic attenuator with 39 discrete steps specifically optimized for the dynamic range and sensitivity characteristics of 300B tube amplification. Each step is precisely calibrated to deliver exact volume increments while maintaining perfect left-right channel balance throughout the entire range, preserving the intimate, three-dimensional soundstage that makes 300B amplifiers legendary among audiophiles. The electronic design eliminates the mechanical wear, contact oxidation, and channel imbalance issues that plague traditional potentiometer-based volume controls, ensuring that the delicate nuances and harmonic textures that define the 300B sound remain completely uncolored. Our proprietary circuit topology employs high-grade precision resistors and relay switching to ensure that the signal path remains completely pure and transparent at every volume setting, from whisper-quiet late-night listening sessions to full-scale dynamic presentations. The 39-step resolution provides fine control granularity that allows users to achieve the perfect listening level for any musical material, ensuring that the 300B's legendary midrange magic is preserved at every volume setting.
LANSING AUDIO PURE DESIGN
Pure Class A Non-Feedback Circuit
- The 300B Master employs a pure Class A circuit topology with zero negative feedback, representing our unwavering commitment to sonic purity and the natural sound reproduction that has made the 300B triode legendary among audiophiles worldwide. This design philosophy eliminates the timing errors, phase distortions, and artificial sonic characteristics that feedback circuits inevitably introduce, preserving the organic, lifelike quality that defines the 300B's magical performance. Class A operation ensures that each 300B tube conducts throughout the entire signal cycle, eliminating crossover distortion and providing the smoothest, most linear amplification possible while maintaining the warm, intimate character that has made this tube the gold standard for vocal and acoustic music reproduction. The absence of negative feedback preserves the natural harmonic structure and spatial information that make the 300B's presentation so compelling and emotionally engaging. Our circuit design employs the shortest possible signal path with minimal components in the signal chain, ensuring that the music reaches your speakers with maximum purity and the distinctive 300B sonic signature completely intact.
Lansing Audio Evolution
Master Series: Decades of 300B Refinement
- The 300B Master represents decades of continuous development and refinement in 300B amplifier design, incorporating breakthrough improvements that elevate the legendary 300B performance to unprecedented levels of musical authenticity and emotional engagement. This Master Series iteration implements advanced circuit topologies and component selections that were developed through extensive listening tests with the world's finest 300B tubes and careful analysis of what makes the 300B sound so uniquely compelling. Each design element has been optimized specifically for the 300B's distinctive characteristics, resulting in an amplifier that not only preserves but actually enhances the tube's legendary midrange magic, harmonic richness, and three-dimensional soundstage presentation. The development process involved collaboration with renowned 300B specialists, extensive prototype testing with vintage and modern 300B tubes, and feedback from discerning audiophiles who understand the subtle nuances that separate exceptional 300B amplification from merely good tube amplification. The result is an amplifier that represents the absolute pinnacle of 300B amplifier design and the definitive expression of what makes this legendary tube so revered.
Lansing Audio Craftsmanship
Hand-Wound Transformers Excellence
- Every power supply, choke, and output transformer in the 300B Master is meticulously hand-wound by Lansing Audio's master craftsmen specifically for the unique requirements of 300B triode amplification, ensuring optimal performance characteristics that machine-wound alternatives cannot achieve. Our output transformers feature a proprietary 6-layer winding technique specifically designed to complement the 300B's distinctive impedance characteristics and frequency response, delivering exceptional sonic purity while preserving the warm, musical character that has made the 300B legendary. The hand-winding process allows for precise control of wire tension, layer spacing, and termination techniques that directly impact the 300B's midrange magic and harmonic richness. Each transformer undergoes extensive testing with actual 300B tubes to ensure optimal coupling and frequency response characteristics. The 6-layer OPT design provides superior frequency extension and enhanced dynamic response while maintaining the intimate, three-dimensional soundstage that defines exceptional 300B amplification. Our master winders employ techniques refined over decades of 300B amplifier development, creating transformers that not only meet the demanding requirements of the 300B triode but actually enhance its legendary performance characteristics.
Lansing Audio Engineering
Advanced Thermal Management
- The 300B tubes operate at moderate temperatures compared to other power tubes, and our engineering team has developed comprehensive thermal management solutions that ensure optimal performance and exceptional longevity while maintaining the stable operating conditions that preserve the 300B's legendary sonic characteristics. The amplifier's chassis design incorporates strategic ventilation channels, precision-machined heat sinks, and carefully calculated component spacing that promotes efficient heat dissipation while maintaining the optimal operating temperatures that maximize the 300B's musical performance. Advanced materials selection includes components specifically rated for the 300B's operating environment throughout the signal path and power supply sections, ensuring reliable operation that preserves the tube's distinctive sonic signature. The chassis construction employs thermal modeling to optimize airflow patterns and heat distribution, preventing temperature variations that could affect the 300B's delicate harmonic structure and midrange magic. Our thermal management system operates silently without fans or forced air circulation, maintaining the quiet operation that allows the 300B's subtle musical nuances to emerge clearly. This comprehensive approach allows the 300B tubes to operate in their optimal performance zone while achieving exceptional reliability and longevity.
LANSING AUDIO PROTECTION
Intelligent Power Management System
- The 300B Master incorporates an advanced delayed-start power management system with intelligent auto-shutdown capabilities specifically designed to protect the valuable 300B tubes and preserve their legendary sonic characteristics throughout their extended lifespan. The delayed-start sequence ensures that all power supply voltages stabilize before applying power to the 300B tubes, preventing the damaging voltage spikes that can occur during startup and could compromise the tube's delicate internal structure. The intelligent monitoring system continuously tracks operating parameters and automatically initiates shutdown procedures if abnormal conditions are detected, including power supply irregularities, excessive temperatures, or loss of input signal that could stress the 300B tubes. The auto-shutdown feature activates after a predetermined period of inactivity, protecting the valuable 300B tubes from unnecessary wear while conserving energy. Advanced surge protection circuits guard against power line transients and voltage fluctuations that could damage the sensitive 300B tubes or other critical components. The system also includes sophisticated muting circuits that prevent speaker damage during power-up and shutdown sequences while protecting the 300B tubes from potentially damaging transients.
Lansing Audio Excellence
Uncompromising Quality Investment
- When you examine the 300B Master amplifier from its meticulously crafted walnut exterior to its precision-engineered interior, you will immediately understand the extraordinary dedication and premium component quality that makes every dollar of your investment worthwhile in pursuing the legendary 300B sound. The external aesthetics showcase hand-selected walnut wood and flawless finishing that reflect our uncompromising commitment to excellence, while the internal construction reveals the true extent of our craftsmanship with point-to-point wiring executed by master technicians who understand the unique requirements of 300B amplification. Premium components are strategically positioned for optimal performance and construction techniques prioritize sonic excellence over manufacturing convenience, ensuring that every aspect of the amplifier contributes to the magical 300B listening experience. Every visible detail, from the precision-machined aluminum chassis to the carefully selected walnut grain, demonstrates our philosophy that true quality is evident in every aspect of design and construction. The internal layout showcases thoughtful engineering with the shortest possible signal paths, optimal component spacing, and meticulous attention to grounding and shielding that ensures the 300B's legendary midrange magic is preserved and enhanced.
LANSING AUDIO PERFECT HARMONY
Ultimate 300B Tube Configuration
- The 300B Master features the ultimate tube configuration that represents the pinnacle of 300B triode amplifier design: 4 POWER TUBES 300B that serve as the heart of the amplifier, delivering the legendary warm, smooth sound signature with deep, textured bass, rich and expressive midrange, and clear, airy treble that has made the 300B the most revered tube in audio history. 2 DRIVER TUBES 6SN7 that form the heart of the driver and preamp stages, producing the rich, warm audio characteristics that perfectly complement the 300B's sonic signature while providing the precise signal conditioning required for optimal 300B performance. 2 RECTIFIER TUBES GZ34 that feature the legendary "soft start" characteristic that gradually increases voltage during startup, extending component longevity while providing the stable, clean power supply that allows the 300B tubes to deliver their magical performance. This represents the absolute perfect combination of tube types, each selected for their specific sonic characteristics and their proven ability to work in perfect harmony with the legendary 300B triode, creating a synergistic effect that delivers the ultimate expression of what makes 300B amplification so emotionally compelling and musically satisfying.
Lansing Audio Assurance
Premium Protection & Warranty
- Every 300B Master amplifier is meticulously packaged using professional-grade materials and techniques that ensure your investment arrives in perfect condition, regardless of shipping distance or handling conditions. Our comprehensive packaging system includes custom-fitted foam inserts, reinforced corners, and moisture protection that safeguards every component during transit, with special attention to protecting the delicate walnut wood finish and precision aluminum components. Beyond the physical protection, we stand behind our craftsmanship with an industry-leading 3-year comprehensive warranty that covers all components, materials, and workmanship, providing you with complete peace of mind and confidence in your purchase of this legendary 300B amplifier. This extended warranty period reflects our absolute confidence in the quality and reliability of our amplifiers, giving you ample time to fully experience and appreciate the exceptional 300B performance characteristics that define Lansing Audio products. Our warranty coverage includes not only parts and labor but also technical support from our experienced engineers who understand every aspect of 300B amplifier design and operation, ensuring that you receive the highest level of service throughout your ownership experience. The package includes the amplifier body, walnut wood remote control, and premium power cable, everything needed to begin your journey into the magical world of 300B amplification.
⚡ TECHNICAL SPECIFICATIONS ⚡
🔊 Audio Performance
| Rated Power Output: | 15W + 15W (4Ω, 8Ω, 16Ω) |
| Total Harmonic Distortion: | 0.1% (1kHz, 1W) 0.5% (20Hz-20kHz, 1W) |
| Frequency Response: | 20Hz - 20kHz (±0-1dB) |
| Input Sensitivity: | 400mV / 15W |
| Input Impedance: | 100kΩ |
🔌 Connectivity & Power
| Audio Inputs: | 3 × RCA Pairs 1 × XLR Balanced |
| Speaker Outputs: | 4Ω, 8Ω, 16Ω (Independent) |
| Power Supply: | 115V/230V, 50/60Hz |
| Power Consumption: | 215W Max, 180W Idle |
| Volume Control: | 39-Step Electronic |
🔥 Vacuum Tubes
| Power Tubes: | 4 × 300B (Matched Quad) |
| Driver Tubes: | 2 × 6SN7 |
| Rectifier Tubes: | 2 × GZ34 (5U4G for 12W) |
| Bias System: | Intelligent Auto-Bias |
| Circuit Topology: | Pure Class A, Zero Feedback |
📐 Physical Specifications
| Dimensions (W×H×D): | 550×240.5×409mm |
| Weight: | 31.5kg (69.4 lbs) |
| Chassis Material: | Premium Aluminum + Walnut Wood |
| Finish: | Natural Walnut Wood |
| Thermal Management: | Natural Convection |
| Included Accessories: | Walnut Remote + Power Cable |
🏆 Premium 300B Features
🎵 Single-Ended Triode Magic:
- Pure Class A operation (15W per channel)
- Zero negative feedback design
- Direct-heated triode warmth
- Exceptional harmonic richness
🔧 Audiophile Components:
- Hand-wound 6-layer transformers
- German oil-filled capacitors
- Silver-plated internal wiring
- 80% in-house manufacturing
🎼 THE 300B LEGEND
Why 300B is the King of Tubes
• Legendary Sound: The 300B tube is revered worldwide for its magical midrange and natural musicality
• Direct-Heated Triode: Provides the most direct signal path for unparalleled transparency
• Single-Ended Design: Eliminates crossover distortion for pure, uncolored sound
• Harmonic Richness: Creates the warm, tube sound that audiophiles cherish
🎯
15W
Pure Class A Power
🔥
4×300B
Legendary Tubes
🎵
SET
Single-Ended Triode
🛡️ LANSING AUDIO GUARANTEE
🏆
3 Years
Comprehensive Warranty
📦
Professional
Packaging & Shipping
🔧
Expert
Technical Support
🚚 Global Shipping Information
• Fast Processing: All orders shipped within 24 hours of payment confirmation
• Secure Transit: Professional courier services ensure safe delivery worldwide
• Delivery Timeline: 10-22 days to most destinations (customs processing may extend delivery)
• Important Note: Import duties, taxes, and charges are buyer's responsibility
MASTER ENGINEER SIGNATURE
Designed in Japan and manufactured in Vietnam, the 300B Master represents the perfect fusion of Japanese precision engineering and Vietnamese craftsmanship excellence. Under the expert guidance of Johnny Trịnh, a Vietnamese-American engineer specializing in kinetic dynamics and physics in the United States, this amplifier embodies decades of scientific research and practical audio engineering experience.
Johnny Trịnh's extensive background in kinetic dynamics and physics brings a unique scientific approach to audio engineering, ensuring that every aspect of the 300B Master's design is optimized for maximum performance through rigorous scientific principles and advanced engineering methodologies. This international collaboration combines the best of Eastern and Western engineering philosophies to create an amplifier that transcends traditional boundaries.
"Where Japanese precision meets Vietnamese artistry, guided by American innovation."
Customer Reviews
About Lansing Audio Inc.
Much more than a mere carriage-trade brand name, Lansing Audio marque has come to represent stellar performance and lasting value for music lovers and audio enthusiasts everywhere.
