Phasemation MA-3000 300B Monaural Power Amplifier

Description

Phasemation MA-3000 Monaural 300B Power Amplifier

25W Parallel Single-Ended 300B Output Stage

The output stage of the Phasemation MA-3000 uses 300B directly heated triodes in a parallel single-ended configuration.Phasemation’s design philosophy is based on the belief that directly heated triodes can provide exceptional signal transmission speed and expressive musical performance when implemented correctly.

By keeping the output circuitry relatively simple, the MA-3000 is designed to achieve a combination of purity, speed and musical immediacy while delivering a maximum output of 25W.

EL34 Driver Stage with Transformer Coupling

The MA-3000 uses an EL34 connected in triode mode as its driver tube.

The audio signal then passes through an interstage transformer before reaching the 300B output stage.

Unlike conventional driver circuits that primarily provide voltage amplification, Phasemation uses the driver stage itself as a power amplification circuit. This architecture, inherited from the MA-5000, is designed to reduce impedance and improve signal linearity.

New High-Regulation Toroidal Power Transformer

One of the major developments in the MA-3000 is its newly designed toroidal power transformer.

Phasemation developed this transformer specifically to reduce power-supply impedance and improve regulation.

According to the manufacturer, this contributes to faster transient performance and a wider, more expansive soundstage.

Flagship-Inherited Vibration Control

Mechanical vibration can influence the performance of vacuum-tube electronics, particularly when large power transformers are involved.

Born from the MA-5000 Flagship Philosophy

The Phasemation MA-3000 was developed as the younger sibling of the flagship MA-5000, carrying forward several of the engineering principles that define Phasemation’s reference monaural amplifiers.

These include a monaural architecture, non-feedback circuit philosophy, transformer-coupled tube stages, careful vibration control and a strong focus on reducing power-supply and magnetic interference.

While the MA-5000 uses a WE-211 parallel single-ended output stage driven by a transformer-coupled 300B, the MA-3000 adopts a more compact parallel single-ended 300B output stage with an EL34 driver in triode mode.

The result is a different implementation of the same design philosophy: simple signal paths, triode operation, transformer coupling and a strong emphasis on speed, linearity and musical expression.

The MA-3000 inherits vibration-control and transformer-isolation techniques developed for the flagship MA-5000.

The internal structure is designed to reduce unwanted mechanical energy and micro-vibration, helping maintain clean and high-resolution audio reproduction.

Advanced Magnetic Flux Control

Phasemation also places strong emphasis on controlling leakage magnetic flux inside the amplifier.

Transformers and coils are comprehensively shielded, while the internal layout is designed to isolate the main vacuum-tube signal paths from unwanted magnetic interference.

This approach is intended to preserve resolution, transparency and low-level musical information.

Japanese-Inspired Industrial Design

The MA-3000 continues Phasemation’s distinctive visual language with a thick, precisely slanted aluminium front panel.

The amplifier is specifically engineered to achieve optimum performance with its protective cover installed.

The top cover incorporates carefully designed ventilation openings inspired by traditional Japanese decorative patterns, combining cooling functionality with a refined visual identity.

Phasemation MA-3000 Key Features

• Amplifier Type: Monaural Vacuum-Tube Power Amplifier
• Output Stage: Parallel Single-Ended 300B
• Maximum Output Power: 25W
• Driver Tube: EL34 in Triode Mode
• Driver Coupling: Interstage Transformer
• Feedback: Non-NFB Design
• Power Transformer: Newly Developed High-Regulation Toroidal Transformer
• Construction: Monaural Configuration
• Vibration Control: Flagship-Inherited Transformer Isolation Architecture
• Magnetic Flux Control: Shielded Transformers and Coils
• Chassis Design: Slanted Aluminium Front Panel
• Ventilation: Japanese-Inspired Top Cover Pattern

Expected Availability

The first shipment of the Phasemation MA-3000 is currently scheduled for the end of November 2026.

For listeners seeking the ultimate expression of Phasemation’s monaural tube-amplifier philosophy, the flagship MA-5000 remains the reference model, while the MA-3000 brings much of the same design thinking into a smaller and more accessible 300B-based platform.

Complete the Phasemation Amplification System

For a complete Phasemation amplification system, the

Phasemation CM-2200 Control Meister

is a natural partner for the Phasemation MA-3000 monaural power amplifiers.

The CM-2200 is designed around Phasemation’s philosophy of signal purity and precise system control, making it a strong companion for a high-end system built around the MA-3000.