TOPPING Mini 300 Compact Desktop Power Amplifier - fully-balanced Class-D Amp, TRS/RCA input, 12V Trigger, Ultra-low distortion, Zero-noise Safe and reliable

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TOPPING Mini 300 Compact Desktop Power Amplifier - fully-balanced Class-D Amp, TRS/RCA input, 12V Trigger, Ultra-low distortion, Zero-noise Safe and reliable

Name: TOPPING Mini 300 Compact Desktop Power Amplifier - fully-balanced Class-D Amp, TRS/RCA input, 12V Trigger, Ultra-low distortion, Zero-noise Safe and reliable
Brand: KGUSS
SKU: 18458109463
Price: 139 USD
Availability: OutOfStock

|3 ratings

TOPPING Mini 300 Compact Desktop Power Amplifier - fully-balanced Class-D Amp, TRS/RCA input, 12V Trigger, Ultra-low distortion, Zero-noise Safe and reliable TOPPING Mini 300 Compact Desktop Power Amplifier fully balanced Class D Amp TRS RCA input 12V Trigger Ultra low distortion Zero noise Safe reliable TOPPING Mini 300 Compact Desktop Power Amplifier fully balanced Class D Amp TRS RCA input 12V Trigger Ultra low distortion Zero noise Safe reliable TOPPING Mini 300 Compact Desktop Power Amplifier fully balanced Class D Amp TRS RCA input 12V Trigger Ultra low distortion Zero noise Safe reliable

Actual Color:White-Out of stock

Key item features

‌‌Balanced architecture, balanced sound.Inside, the Mini 300 runs a fully-balanced Class-D circuit. That means each channel has its own complete amplification path, eliminating crosstalk and rejecting external noise before it ever touches your speakers. The result is an ultra-quiet floor—124dB SNR and less than 15μVrms of noise—so the only thing you’ll hear is the music itself. Smooth, transparent, and effortlessly controlled.
Ultra-low distortion.Mini300 exhibits distortion levels close to high-end reference.THD+N <0.0004% @8Ω 5W. This means every musical detail is faithfully reproduced, whether it's subtle instrumental nuances, delicate vocals, or large-scale dynamic music. The result is enhanced depth, and a higher level of audio fidelity.
Multi-scenario High-power output.Mini300 can deliver up to 140W×2 into 4Ω at 10% THD+N, and still provide 125W×2 into 4Ω even at 1% THD+N. This combination of high power and high fidelity makes Mini300 more than capable of meeting the demanding audio requirements of HiFi music listening or professional monitoring.
Dual inputs.The rear panel accepts both balanced TRS and unbalanced RCA inputs, no adapters needed. Balanced inputs offer better rejection of interference for longer cable runs, while RCA keeps compatibility with everyday sources. Flip the front switch between BAL and SE to match your source, and you’re good to go.
Auto-on convenience.The 12V trigger input lets the Mini 300 power on and off in sync with your DAC or preamp—no reaching behind your stack or fumbling for switches. Once connected, it wakes up and shuts down with your system.
Zero-noise Safe and reliable.Featuring silent power on/off and built-in overheat and overcurrent protection, Mini300 safeguards components from accidental damage, such as excessive volume levels.

Specs

Audio power amplifier class
Class D Amplifier
Rms power rating
140 W
Brand
KGUSS
In/Out type
RCA
Model
Mini 300
Signal-to-noise ratio
124 dB

Current price is $139.00

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Product details

【2025 New Product】TOPPING Mini 300 —— A fully-balanced Class-D amplifier that fits anywhere.A compact power amplifier that blends precision, power, and balance. The TOPPING Mini 300 delivers 140 watts per channel into 4Ω with astonishingly low distortion—less than 0.0005% THD+N at 8Ω, 5W output. Its fully-balanced Class-D architecture ensures an exceptionally clean signal path, while its quiet 124dB SNR keeps the background utterly black. Whether driving bookshelf speakers in your office or powering monitors on your desk, the Mini 300 brings clarity, composure, and control to every listening session.

‌‌Balanced architecture, balanced sound.Inside, the Mini 300 runs a fully-balanced Class-D circuit. That means each channel has its own complete amplification path, eliminating crosstalk and rejecting external noise before it ever touches your speakers. The result is an ultra-quiet floor—124dB SNR and less than 15μVrms of noise—so the only thing you’ll hear is the music itself. Smooth, transparent, and effortlessly controlled.
Ultra-low distortion.Mini300 exhibits distortion levels close to high-end reference.THD+N <0.0004% @8Ω 5W. This means every musical detail is faithfully reproduced, whether it's subtle instrumental nuances, delicate vocals, or large-scale dynamic music. The result is enhanced depth, and a higher level of audio fidelity.
Multi-scenario High-power output.Mini300 can deliver up to 140W×2 into 4Ω at 10% THD+N, and still provide 125W×2 into 4Ω even at 1% THD+N. This combination of high power and high fidelity makes Mini300 more than capable of meeting the demanding audio requirements of HiFi music listening or professional monitoring.
Dual inputs.The rear panel accepts both balanced TRS and unbalanced RCA inputs, no adapters needed. Balanced inputs offer better rejection of interference for longer cable runs, while RCA keeps compatibility with everyday sources. Flip the front switch between BAL and SE to match your source, and you’re good to go.
Auto-on convenience.The 12V trigger input lets the Mini 300 power on and off in sync with your DAC or preamp—no reaching behind your stack or fumbling for switches. Once connected, it wakes up and shuts down with your system.
Zero-noise Safe and reliable.Featuring silent power on/off and built-in overheat and overcurrent protection, Mini300 safeguards components from accidental damage, such as excessive volume levels.

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Specifications

Audio power amplifier class

Class D Amplifier

Rms power rating

140 W

Brand

KGUSS

In/Out type

RCA

Warranty

Warranty information

1 year warranty

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