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

• Input: SE / BAL
  
• 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)
  
• Frequency Response: 20Hz–40kHz (±0.3dB)
  
• Output Level: 65Vpp @4Ω / 68Vpp @8Ω
  
• Noise (A-wt): <15μVrms
  
• Channel Crosstalk @1kHz: -90dB (SE) / -106dB (BAL)
  
• Input Sensitivity: 1.3Vrms (SE) / 2.6Vrms (BAL)
  
• Gain: 25.0dB (SE) / 19.2dB (BAL)
  
• Channel Balance: 0.1dB
• Load Impedance: 4–8Ω
  
• 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%)
    
• Dimensions: 6.5 × 5.1 × 1.6in (16.6 × 12.9 × 4.1cm)
  
• Power Supply: DC 38V

In the Box

• Topping Mini 300 amplifier
• Power adapter
• Power cable
• Info card