TOPPING
TOPPING Mini300 Compact Stereo Power Amplifier, Fully Balanced Class-D Design, 140W×2 @4Ω, Ultra-Low Distortion <0.0004% THD+N, 124dB SNR/DNR, Trig Auto Power Sync, Aluminum Chassis (Silver)
*Price sourced from Amazon.com. Last updated 2026-04-23. Price and availability subject to change.
Key Features
- 【Professional Balanced Class-D Design】Featuring a fully balanced amplification architecture, the TOPPING Mini300 minimizes noise and interference for a pure, distortion-free signal path—achieving professional-grade transparency and depth in a compact form.
- 【High Power Output with Ultra-Low Distortion】Delivering up to 140W×2 @4Ω (THD+N <10%) and maintaining <0.0004% THD+N @8Ω 5W, Mini300 combines high fidelity and high power, ideal for both HiFi listening and studio monitoring applications.
- 【Exceptional Dynamic Range and Clarity】With 124dB DNR and 124dB SNR, Mini300 preserves every subtle musical detail—allowing instruments and vocals to sound natural, lifelike, and richly layered.
- 【Auto Power Sync with TRIG Control】The TRIG-linked power function automatically powers the amplifier on/off in sync with connected devices—making system control effortless and eliminating the need to operate multiple units individually.
- 【Dual Input Compatibility】Supports both balanced TRS and unbalanced RCA inputs—no adapter required. Easily integrates with DACs, preamps, or audio interfaces for flexible system setups.
- 【Quiet, Safe, and Reliable Operation】Engineered for silent startup/shutdown, and equipped with overheat and overcurrent protection, ensuring long-term reliability and zero noise during playback.
Full Specifications
| Brand | TOPPING |
|---|---|
| Model | TOPPING-MINI300 |
| Voltage | 12 Volts (DC) |
| Output Power | 200 Watts |
| Material Type | Aluminum, Plastic |
| Mounting Type | Freestanding |
| Item Dimensions | 6.53 x 5.08 x 1.61 inches |
| Specification Met | FCC |
| Number of Channels | 2 |
| Included Components | Quick Start Guide |
| Warranty Description | 1 year manufacturer |
| Maximum Supply Voltage | 38 Volts (DC) |
| Item dimensions L x W x H | 6.53 x 5.08 x 1.61 inches |
Ready to buy?
TOPPING Mini300 Compact Stereo Power Amplifier, Fully Balanced Class-D Design, 140W×2 @4Ω, Ultra-Low Distortion <0.0004% THD+N, 124dB SNR/DNR, Trig Auto Power Sync, Aluminum Chassis (Silver) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-04-23. Price and availability subject to change.
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