Brand New Fourth Generation MP-301 MK4 6L6 EL34 KT88 Single-Ended Class A Tube Amplifier Headphone Amplifier - this product combines quality craftsmanship with modern technology to deliver exceptional performance.
MP-301 MK4 Single-Ended Class A Tube Amplifier & Headphone Amp - Universal 6L6/EL34/KT88 Compatibility
15 Years of Refinement, Reborn in 4th Generation
Experience the evolution of tube amplifier excellence with the all-new MP-301 MK4. After 15 years of continuous refinement across three generations, this fourth-generation masterpiece represents the pinnacle of single-ended Class A design. Whether driving bookshelf speakers or serving as a premium headphone amplifier, the MK4 delivers the warm, natural sound that tube enthusiasts crave.
9 Major Upgrades for Superior Performance
Full Aluminum Alloy Chassis - Maximizes interference resistance while serving as acoustic artwork for your living space
EI Square Transformer Upgrade - Replaces toroidal design for warmer, more natural vocals and classical reproduction
High-Power Layered Output Transformer - Multi-section winding for deeper bass extension and smoother highs
Large Inductance Filter Choke - Ultra-stable power supply with significantly reduced background noise
Increased Power to 10W/Channel - 3.5W more than previous generation (with KT88/6550/KT120 tubes)
All-DC Linear Regulated Filament - Nearly invisible background noise for pristine listening
Comprehensive Circuit Optimization - Smoother frequency response and enhanced detail retrieval
Gold-Plated RCA & Speaker Terminals - Minimizes signal loss and prevents oxidation
American High-Precision Fuses - Instant power cutoff protection for complete peace of mind
Beginner-Friendly HiFi Technology
Single-Ended Class A + No Loop Feedback - Pure tube sound without complex circuit interference
Self-Bias Plug & Play - No bias adjustment needed when switching between 6L6, EL34, or KT120 tubes
Premium Audiophile Components - Imported Z11 iron core transformers, Japanese Nikon/Rubycon capacitors, Vishay Dale military-grade resistors, and ALPS potentiometer
Dual Function: Amplifier & Premium Headphone Amp
The MP-301 MK4 isn't just an amplifier - it's a "10,000-yuan level" headphone amplifier artifact! The headphone output utilizes the same tube + output transformer path as the speaker output:
32Ω 2W/55Ω 1.2W/300Ω 250mW/600Ω 120mW Class A output
Perfectly drives AKG 701, Sennheiser HD800, Beyerdynamic DT1, HIFIMAN HE6
Vocal reproduction creates "singer singing close to your ear" intimacy
Crystal-clear instrument separation for classical music
Technical Specifications
| Parameter | Details |
|---|---|
| Output Power | 10W (KT88/6550/KT120); 6.5W (6L6/EL34) |
| Supported Tubes | Preamp: 6J8P, 6*8, 6SJ7, 717A, 6SH7, EF86 (with adapter) |
| Power: KT88/6550/KT120, 6L6/EL34/KT77/KT66 (switchable) | |
| Frequency Response | 20-25kHz |
| THD | <1% (open loop, no feedback) |
| Signal-to-Noise Ratio | 90dB |
| Certification | CE Certified |
Why Choose MP-301 MK4?
This amplifier represents the perfect fusion of 15 years of tube amplifier expertise with modern manufacturing precision. The thoughtful upgrades address every pain point of previous generations while maintaining the authentic single-ended Class A sound that made the MP-301 series legendary. From the elegant matte-finish aluminum chassis to the premium internal components, every aspect reflects a commitment to audio perfection.
