Topping Mini 500 Amplifier Delivers 500W in Mono

Topping Mini 500 speaker amplifier (Image: Topping)

The Topping Mini 500 was launched yesterday (October 20) in the international market and mainland China. The M500 is Topping’s new speaker amplifier, positioned one tier above the Topping M300. Its key features include support for both stereo and mono operation, balanced XLR connectivity, and an output power of 500 W into 2 Ω. Full details of Topping’s latest release are provided below.

Mini 500 Arrives with 500 W of Power, XLR Connectivity, and More

Designed for bookshelf speakers, the Topping Mini 500 can deliver up to 500 W in mono mode and 250 W in stereo mode. In addition, the Mini 500 can operate as an integrated amplifier or as a power amplifier when connected to a preamplifier.

The Mini 500 features a fully balanced signal transmission architecture and a Class D amplification circuit. Its rear panel includes balanced XLR and 6.35 mm TRS inputs, as well as single-ended (SE) RCA connectivity.

Another notable feature of Topping’s new amplifier is its 12 V trigger, which allows the system to be switched on and off with a single command. Further details about the Mini 500’s features are provided below.

Topping Mini 500 speaker amplifier (Image: Earside耳边事/weibo)

Native Bridge-Tied Load (BTL) Mode

The Mini 500 uses a BTL (Bridge-Tied Load) architecture for its stereo output. In this configuration, two amplification channels work together to drive a single speaker. According to Topping, this implementation provides precise, controlled reproduction during complex passages in symphonic works with wide dynamic variations.

High Output Power and Strong Control

The Mini 500’s maximum output amplitude in stereo mode is 92 Vpp (peak-to-peak voltage) into 8 Ω. According to the manufacturer, this capability delivers “deep, firm, and powerful bass, with a fast and precise transient response.”

500 W Peak Power in Mono Mode

In mono mode, the Topping Mini 500 can deliver 500 W into 2 Ω (THD+N < 10%). Combining two Mini 500 units makes it possible to build a dual-mono system with higher output power, improved channel separation, and a better soundstage.

Topping Mini 300 on top and Topping Mini 500 on the bottom (Image: Earside耳边事/weibo)

How to Use the Mini 500 as a Power Amplifier

A switch on the rear panel allows the Mini 500 to alternate between integrated amplifier and power amplifier modes. The power amplifier mode is labeled “BYPASS,” as it allows direct signal pass-through. The integrated amplifier mode is labeled “VOL,” as it allows the volume level to be adjusted using the knob.

Note that selecting “BYPASS” fixes the output volume at its maximum setting.

How to Switch the Mini 500 Between Mono and Stereo Modes

A switch on the rear panel of the Mini 500 allows users to alternate between mono and stereo modes. It is located next to the BYPASS/VOL switch, on the right-hand side when viewing the amplifier from the rear.

Switch for toggling between mono and stereo modes on the Topping Mini 500 (Image: Earside耳边事/weibo)

Mini 500 Front and Rear Connections

The rear panel of the Topping Mini 500 includes balanced XLR and 6.35 mm TRS inputs, along with a set of single-ended RCA inputs.

Rear connections on the Topping Mini 500 (Image: Earside耳边事/weibo)

The front panel features an audio source selector switch, making it easy to select the input when connecting various DACs, CD players, and preamplifiers.

Switches on the front of the Topping Mini 500 (Image: Topping

Switching On the Mini 500 Together with a DAC or Preamplifier

When the switch on the front panel of the Mini 500 is set to “TRIG,” the amplifier switches on as soon as the connected DAC or preamplifier is activated. If the switch is left in the “OFF” position, the Mini 500 must be switched on manually.

Topping DX5 II DAC/amp (top) connected to the Topping Mini 500 amplifier (bottom) (Image: Earside耳边事/weibo)

Topping Mini 500: Specifications

General Specifications

• 12 V trigger
• Chassis material: aluminum alloy
• Colors: White/Black
• Dimensions: 16.4 cm × 19 cm × 4.4 cm
• Front-panel controls: volume knob, ON/OFF/TRIG switch, BAL/SE switch
• Inputs: XLR, 6.36 mm TRS, and RCA
• Rear-panel controls: VOL/BYPASS switch, STEREO/MONO switch
• Weight: 1,090 g

Stereo Mode Specifications with the Single-Ended Input

• THD+N at 1 kHz, A-weighted – 4 Ω, 5 W: 0.0006%
• THD+N at 1 kHz, A-weighted – 8 Ω, 5 W: 0.0005%
• THD+N, unweighted, 20 kHz bandwidth – 4 Ω, 5 W: 0.0050%
• THD+N, unweighted, 20 kHz bandwidth – 8 Ω, 5 W: 0.0040%
• Signal-to-noise ratio at maximum output, 1 kHz, A-weighted: 123 dB
• Dynamic range at 1 kHz, A-weighted: 123 dB
• Frequency response – 20 Hz to 20 kHz: ±0.3 dB
• Frequency response – 20 Hz to 40 kHz: ±1.0 dB
• Output amplitude into 4 Ω: 85 Vpp
• Output amplitude into 8 Ω: 92 Vpp
• Noise floor, A-weighted: < 17 µVrms
• Channel crosstalk at 1 kHz: −98 dB
• Input sensitivity: 2.0 Vrms
• Gain: 25.7 dB
• Channel balance: 0.1 dB
• Input impedance: 1.0 kΩ

Stereo Mode Specifications with the Balanced Input

• THD+N at 1 kHz, A-weighted – 4 Ω, 5 W: 0.0005%
• THD+N at 1 kHz, A-weighted – 8 Ω, 5 W: 0.0004%
• THD+N, unweighted, 20 kHz bandwidth – 4 Ω, 5 W: 0.0050%
• THD+N, unweighted, 20 kHz bandwidth – 8 Ω, 5 W: 0.0040%
• Signal-to-noise ratio at maximum output, 1 kHz, A-weighted: 126 dB
• Dynamic range at 1 kHz, A-weighted: 126 dB
• Frequency response – 20 Hz to 20 kHz: ±0.3 dB
• Frequency response – 20 Hz to 40 kHz: ±1.0 dB
• Output amplitude into 4 Ω: 85 Vpp
• Output amplitude into 8 Ω: 92 Vpp
• Noise floor, A-weighted: < 17 µVrms
• Channel crosstalk at 1 kHz: −111 dB
• Input sensitivity: 4.0 Vrms
• Gain: 19.8 dB
• Channel balance: 0.1 dB
• Input impedance: 6.8 kΩ

Mono Mode Specifications with the Single-Ended Input

• THD+N at 1 kHz, A-weighted – 2 Ω, 5 W: 0.0010%
• THD+N at 1 kHz, A-weighted – 4 Ω, 5 W: 0.0008%
• THD+N at 1 kHz, A-weighted – 8 Ω, 5 W: 0.0005%
• THD+N, unweighted, 20 kHz bandwidth – 4 Ω, 5 W: 0.0050%
• THD+N, unweighted, 20 kHz bandwidth – 8 Ω, 5 W: 0.0040%
• Signal-to-noise ratio at maximum output, 1 kHz, A-weighted: 123 dB
• Dynamic range at 1 kHz, A-weighted: 123 dB
• Frequency response – 20 Hz to 20 kHz: ±0.3 dB
• Frequency response – 20 Hz to 40 kHz: ±1.0 dB
• Output amplitude into 2 Ω: 84 Vpp
• Output amplitude into 4 Ω: 89 Vpp
• Output amplitude into 8 Ω: 92 Vpp
• Noise floor, A-weighted: < 17 µVrms
• Input sensitivity: 2.0 Vrms
• Gain: 25.7 dB
• Input impedance: 1.0 kΩ

Mono Mode Specifications with the Balanced Input

• THD+N at 1 kHz, A-weighted – 2 Ω, 5 W: 0.0009%
• THD+N at 1 kHz, A-weighted – 4 Ω, 5 W: 0.0007%
• THD+N at 1 kHz, A-weighted – 8 Ω, 5 W: 0.0005%
• THD+N, unweighted, 20 kHz bandwidth – 4 Ω, 5 W: 0.0050%
• THD+N, unweighted, 20 kHz bandwidth – 8 Ω, 5 W: 0.0040%
• Signal-to-noise ratio at maximum output, 1 kHz, A-weighted: 123 dB
• Dynamic range at 1 kHz, A-weighted: 126 dB
• Frequency response – 20 Hz to 20 kHz: ±0.3 dB
• Frequency response – 20 Hz to 40 kHz: ±1.0 dB
• Output amplitude into 2 Ω: 84 Vpp
• Output amplitude into 4 Ω: 89 Vpp
• Output amplitude into 8 Ω: 92 Vpp
• Noise floor, A-weighted: < 17 µVrms
• Input sensitivity: 4.0 Vrms
• Gain: 19.8 dB
• Input impedance: 6.8 kΩ

Output Power with Either Input (Single-Ended or Balanced)

• 500 W into 2 Ω (THD+N < 10%)
• 450 W into 2 Ω (THD+N < 1%)
• 300 W into 4 Ω (THD+N < 10%)
• 240 W into 4 Ω (THD+N < 1%)
• 150 W into 8 Ω (THD+N < 10%)
• 120 W into 8 Ω (THD+N < 1%)

Compatible load impedance: 2–8 Ω