Topping Mini 300 | Fully Balanced Desktop Power Amplifier

A Powerhouse in a Compact Form, The Mini 300 Unleashes Professional-Grade Clarity and Control with a Fully Balanced Class D Design Built for Sonic Impact

Balanced Class-D amplifier design
High power output with ultra-low distortion
Exceptional dynamic range and clarity
Auto power sync with TRIG Control
Premium build, dual inputs, and flexible connectivity

Fully Balanced Architecture
At the heart of the Mini 300 lies a fully balanced Class-D amplification design, engineered to maximize signal purity and minimize noise. By eliminating interference and mains hum, the Mini 300 achieves a remarkably quiet background, allowing music to emerge with pristine clarity. Its advanced circuit topology ensures low distortion and effortless control, maintaining smooth, transparent sound across any speaker load.

High Power, Compact Form
Don’t let the small size fool you, the Mini 300 packs serious muscle. Delivering up to 140W x 2 into 4Ω (10% THD+N) and 125W x 2 at just 1% distortion, it combines high-fidelity performance with the drive needed for both audiophile playback and studio monitoring. Whether powering bookshelf or floor standing speakers, it brings music to life with precision and authority.
Pure Amplification
With ultra-low noise, excellent channel separation, and robust gain structure, the Mini 300 delivers a neutral, distortion-free presentation that honors the original recording. Expect sound that’s powerful yet pure, analytical yet deeply engaging.
Protection and Reliability
Built with longevity in mind, the Mini 300 features silent startup and shutdown, along with intelligent protection against overheating, overcurrent, and excessive volume. It’s as safe and reliable as it is powerful, ensuring years of worry-free operation.
Dual Inputs
The Mini 300 adapts seamlessly to your setup with both balanced TRS and unbalanced RCA inputs, ensuring compatibility with a wide range of DACs, preamps, and professional sources, no adapters required. 

Specifications

THD+N @1kHz (A-wt): <0.0006% (SE) / <0.0005% (BAL) @4Ω 5W

THD+N @No-wt 20kBW: <0.0010% @4Ω 5W

SNR @MAX OUT 1kHz (A-wt): 121dB (SE) / 124dB (BAL)

Dynamic Range @1kHz (A-wt): 121dB (SE) / 124dB (BAL)

Channel Crosstalk @1kHz: -90dB (SE) / -106dB (BAL)

Output Power:

140W × 2 @4Ω (THD+N <10%)

125W × 2 @4Ω (THD+N <1%)

85W × 2 @8Ω (THD+N <10%)

65W × 2 @8Ω (THD+N <1%)

In the Box

Topping Mini 300 amplifier
Power adapter
Power cable
Info card