Mini Monoblock 240W DC Power Home Amplifier

Upgrade your home audio with this mini monoblock power amplifier, designed for precise single-channel performance. Powered by a Class-D TPA3255 chip, it delivers up to 240 W into 4 Ω, making it ideal for driving bookshelf speakers or subwoofers. The compact desktop design supports both RCA and balanced XLR/TRS inputs, while toggle gain settings ensure perfect sensitivity with any source. Built with audiophile-grade capacitors and inductors, it offers ultra-low distortion and high dynamic range. Auto on/off and advanced heat sinking keep operation seamless, and swappable op-amps let you tailor the sound signature to your preference. This variant includes the standard 48 V/5 A power supply for reliable single-amp use.

Key Features

• 240 W max output into 4 Ω via Class-D TPA3255 chip

• Dual input modes: RCA (19 dB/25 dB gain) and balanced XLR/TRS (20 dB)

• PFFB-enabled monoblock design for modular multi-amp setups

• Audiophile components: Nichicon/ELNA capacitors, WIMA, Sumida inductors

• Auto power on/off and efficient thermal management

• Swappable DIP-8 op-amps for custom sound tuning

• Includes 48 V/5 A power supply for single-amp operation

Specifications

• Channels: 1.0 (mono)

• Power Output: 240 W @4 Ω (48 V/5 A); 100 W @4 Ω (32 V/5 A)

• THD: < 0.006%

• SNR: ≥ 123 dB; SINAD: 101 dB (XLR), 93 dB (RCA)

• Dynamic Range: ≥ 123 dB

• Gain Settings: XLR/TRS 20 dB; RCA 19 dB & 25 dB

• Frequency Response: 10 Hz–30 kHz (± 0.06 dB)

• Input Voltage: DC 32–48 V

• Speaker Load: 2–8 Ω; connections: banana plug or bare wire

Package Contents

• 1× Mono Power Amplifier Unit

• 1× 48 V/5 A Power Supply

• 1× Power Cord

• 1× User Manual

Note
This standard 48 V/5 A power supply variant is ideal for single-amp configurations; use the 48 V/10 A option if planning multi-amp setups.