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MastersounD Box Integrated Tube Amplifier; MM Phono

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Original price $3,500.00 (46% Off Est. Retail)
Original price From $1,899.00
Original price $3,500.00 (46% Off Est. Retail)
Current price $1,899.00
From $1,899.00
Current price $1,899.00

+$99.00 Shipping to contiguous US.
Tax collected at checkout.

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Product Highlights

The MastersounD Box is a pure Class A tube integrated amplifier delivering 35 watts per channel into 4 or 8 ohms with an integrated MM phono stage. Built as the musical heart of a discerning two-channel setup, this Italian centerpiece pairs three line inputs with a line output and speaker taps. Its parallel single-ended circuit runs with zero negative feedback, driving six EL34 power tubes and two ECC802 signal tubes with automatic biasing. Hand-wound proprietary output transformers, Swiss copper-silver internal wiring, and billet aluminum knobs sit atop a 52-pound antimagnetic stainless steel chassis.

Reviews from Stereo Times and Zero Fidelity praise the amplifier for delivering linear speed, holographic soundstage depth, and lush vocal intimacy without syrupy coloration. Critics note that its conservative 35-watt rating commands complex orchestral dynamics and low-end grip with surprising authority. While reviewers mention that the hefty, handle-free 52-pound chassis requires careful rack placement, they widely regard its zero-feedback presentation as a benchmark in single-ended realism.

Bringing this handcrafted Italian engineering into your home means choosing emotional immediacy and harmonic richness over sterile power. Its self-biasing tube circuit and built-in phono stage simplify analog ownership while preserving pure Class A musicality. For listeners seeking an heirloom-grade integrated amplifier that breathes lifelike presence into every recording, it offers a rewarding foundation.
Brand MastersounD
Type Integrated Amplifiers
Component Color Black
Component Features Remote Control Capable
MSRP $3,500.00
SKU # 102203
Serial # 22302
Cosmetic Rating

7 - Good cosmetic condition with some minor visible cosmetic wear including a few blemishes on the faceplate, some small scratches on the top of the faceplate, and a couple of chips on the top edge of the top of the chassis. Despite these minor cosmetic issues, the amplifier still looks and sounds wonderful.

Functional Notes

Operational condition of this item is excellent, fully tested and no issues found.

Age 3 years
Owners 2
Service History None

Amplifier, Remote, Manual, (6x) Electro-Harmonix EL34 tubes, (2x) JJ ECC8029 tubes, Power cable

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MastersounD Box Integrated Tube Amplifier; MM Phono
MastersounD Box Integrated Tube Amplifier; MM Phono