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Compact black mono amplifier with front volume and frequency knobs, mode switch, speaker terminals, power input, rear RCA jacks

lelisten

lelisten M04 Subwoofer Amplifier 100W Mono Class D Pro Sound

SKU CH-EN5G-DT1RW

A mono Class D amplifier delivering 100 watts to 4-ohm passive subwoofers or speakers with selectable bass and full-frequency modes

  • Product typeAmplifiers
  • 100 watts drives passive subwoofers with authority
  • Texas Instruments TPA3116 chip and NE5532 op-amp ensure clean amplification
  • Switchable subwoofer or full-range mono modes adapt to your system
  • Efficient Class D design stays cool without a bulky footprint
  • 19 V 4.74 A power supply included for immediate setup

Mono Subwoofer Amplifier 100W

The lelisten M04 is a mono Class D amplifier built around the Texas Instruments TPA3116 chip and NE5532 op-amp. It delivers 100 watts into a 4-ohm passive subwoofer or speaker. A selector switch toggles between dedicated subwoofer bass mode and full-frequency mono operation.

Practical Limits of Class D Mono

The amplifier is rated for a 4-ohm load at 100 watts maximum output. It requires the included 19V 4.74A power supply to reach rated performance. The built-in low-pass filter and sub frequency control only function in subwoofer mode, limiting full-range use to the bypass setting.

Installation and Common Issues

Connect the 19V supply, wire the passive subwoofer to the speaker terminals, and select the desired mode via the rear switch. The compact chassis runs cool under load. Ensure the load impedance matches 4 ohms; lower impedance may trigger protection or cause overheating.

What You Get in the Box

The package includes the M04 amplifier, a 19V 4.74A power supply, and a user manual. No speaker cables or RCA interconnects are supplied, so source and speaker wiring must be sourced separately.

How it compares

Measured against everything we stock in Pro Audio Equipment, at today’s prices. Recalculated every night.

Price $89.99
Pricier than about 61% of the 613 comparable items (median $56.99).

Specifications

Product
Product typeAmplifiers

Questions about this item

Should I use the subwoofer bass mode or the full-frequency mono mode for my passive subwoofer?

Use the subwoofer bass mode with the built-in low-pass filter and sub frequency control to tailor low-frequency output for a passive subwoofer; the full-frequency mono mode bypasses the filter for wide-range speaker use.

What does the 100 W rating mean when I connect a 4-ohm passive subwoofer?

The Texas Instruments TPA3116 chip delivers up to 100 watts into a 4-ohm load, giving a passive subwoofer or speaker ample clean power for deep bass in a home theater setup.

What power input does the included 19 V 4.74 A supply provide and is it sufficient for the rated output?

The bundled 19 V 4.74 A power supply feeds the Class D amplifier enough energy to reach the 100 W rating into 4 ohms while the efficient design stays cool under load.

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