Topping Mini 300 Desktop Power Amplifier
- 140W x 2 into 4 ohms at 10% THD+N, 125W x 2 at 1%
- THD+N under 0.0004% at 8 ohms, 5W
- 124dB SNR, under 15uVrms noise
- Balanced TRS and unbalanced RCA inputs, BAL/SE switch
- 12V trigger input for auto on and off
- Fully-balanced Class-D, 2 channels
- Overheat and overcurrent protection
- 38V DC external power adaptor
Updated 22 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A small, very clean desktop power amp with balanced inputs and a trigger for passive speakers in a hi-fi or monitoring setup. It has no volume control or DAC listed, so it needs a preamp or DAC in front.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0FZJJFZL2Model: Mini 300Category: Stereo Amplifiers
Colors Available
Need a different one? Pick on Amazon →
Overview
Topping builds this compact desktop power amplifier around a fully balanced Class-D circuit, giving each channel its own path. It takes a balanced or RCA signal from a DAC or preamp and drives a pair of passive speakers with very low noise.
Measured distortion and noise sit at reference levels, and a trigger input lets it switch on with the rest of the stack. It is a power amp only, so source switching and volume come from another box.
Who it's for
Listeners building a separates system on a desk get clean power and balanced connections in a small chassis. People wanting an all-in-one integrated amp should look elsewhere.
Pros and cons
- Very low distortion
- Very low noise floor
- Balanced and RCA inputs
- Trigger for auto power
- No volume control listed
- No DAC or Bluetooth
- Needs external power adaptor
- Brand listed as KGUSS, built by Topping
Performance notes
Separate balanced paths per channel reject interference and crosstalk, which is why the noise floor stays inaudible with sensitive speakers. Class-D switching delivers high power with little heat in a small case. Balanced inputs suit longer cable runs from the source.
Specifications
| Brand | KGUSS |
|---|---|
| Model | Mini 300 |
| Capacity & performance | |
| Output Power | 140W x 2 into 4 ohms at 10% THD+N, 125W x 2 into 4 ohms at 1% THD+N |
| Noise | Under 15uVrms |
| Power & efficiency | |
| Supply voltage | 38 V DC |
| Included components | |
| Included Components | Mini300 amplifier, power adaptor, power cable, product information card |
| Warranty & support | |
| Warranty Description | 1 year warranty |
| Other details | |
| Number of Channels | 2 |
| Amplifier class | Fully-balanced Class-D |
| Thd n | Under 0.0004% at 8 ohms, 5W |
| Inputs | Balanced TRS, unbalanced RCA |
| Snr | 124dB |
| Trigger | 12V |
| Protection | Overheat, overcurrent |
Frequently asked questions
How does the Topping Mini 300 protect itself and my speakers?
It has silent power on and off plus built-in overheat and overcurrent protection to guard against accidental damage such as excessive volume.
Does the Topping Mini 300 have a volume knob?
No volume control is listed. It is a power amplifier meant to follow a DAC or preamp.
Can the Topping Mini 300 turn on with my DAC?
Yes. The 12V trigger input lets it power on and off in sync with your DAC or preamp.
Which inputs does the Topping Mini 300 take?
Balanced TRS and unbalanced RCA, selected with the front BAL/SE switch.