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Musical Paradise MP-301 MK4 | Mini Tube Amplifier with Headphone Output
Warranty: 1 Year Limited (One month for tubes)

15 Years of Refinement! From the First Generation to the MK4, Every Evolution Pursues Richer Sound

Since the debut of the first MP-301 in 2008, three generations of continuous improvement have laid the foundation. On September 20, 2025, the 4th-generation MP-301 MK4 finally arrives! Featuring 9 core upgrades and audiophile-grade components, it elevates the signature "warm, natural Class A sound" to a new level of delicacy and engagement. Whether driving speakers or serving as a headphone amp, it lets you rediscover the true essence of music.

9 Core Upgrades That Target Pain Points — Every Detail Honed for Purity

1. Full Aluminum Alloy Chassis – Enhances anti-interference performance while the matte finish adds a touch of elegance to your listening room. Not just an amplifier, but an "acoustic work of art" that excels in both aesthetics and sound.
2. Upgraded EI-Type Transformer – Moving away from toroidal designs, the EI structure delivers a warmer, more natural timbre. Vocals and classical music gain immersive detail, revealing a smoother, more charming sound.
3. High-Power Layered Output Transformer – Meticulously wound in multiple sections to extend frequency response, enabling deeper bass, smoother treble, and a wider, more expansive soundstage.
4. Large-Inductor Filter Choke – Supplies stable, ultra-clean power for reduced background noise. Even with soft late-night listening, it’s quiet enough to hear your own breathing.
5. Power Boost to 10W per Channel – With KT88/6550/KT120 tubes, output rises by 3.5W over the previous generation. Drives speakers like the Dali Menuet or KEF LS series with ease and greater dynamic headroom.
6. Full DC Linear-Regulated Filaments – Balanced layout minimizes background noise to near inaudibility, eliminating AC hum that disrupts listening sessions.
7. Comprehensive Circuit Optimization – Produces a richer, more refined sound with seamless transitions across the frequency spectrum. Even familiar old tracks reveal hidden nuances.
8. Gold-Plated RCA & Speaker Terminals – Reduce signal loss, ensure smooth connectivity, and resist oxidation—preserving consistent sound quality over years of use.
9. High-Precision Fast Blown Fuse – Provides instant protection during overcurrent or short circuits of defective power tubes, safeguarding transformers and components.

SPECIFICATIONS:

Output Power: 10W (KT88/6550/KT120); 6.5W (6L6/EL34, etc.)

Supported Tubes: 
Preamp: 6J8P, 6*8, 6SJ7, 717A, 6SH7, EF86 (with adapter)
Power: KT88/6550/KT120, 6L6/EL34/KT77/KT66 (switchable)

Frequency Response: 20Hz–25kHz

THD (open-loop, no NFB): ＜1%

SNR: 90dB

Dimensions/Weight: 25×30×20cm / 13kg