🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
Bigamart
Price
$118.82
Home/Electronics & Photo/Hi-Fi & Home Audio/Receivers & Separates/Amplifiers
HiFi Bluetooth 5.0 Digital Power Amplifier Stereo 2/4 Channel Audio Amp USB Player 50W x 4 Output for Versatile Sound Systems — image 1
AmplifiersNobsound✓ In stock

HiFi Bluetooth 5.0 Digital Power Amplifier Stereo 2/4 Channel Audio Amp USB Player 50W x 4 Output for Versatile Sound Systems

★★★★★
$118.82
Worldwide shipping
Fast tracked delivery
30-day returns
Hassle-free returns
Secure checkout
Safe & protected
Great service
Thousands of happy customers
About this item
  • One group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands:
  • CH3/CH4 as audio output: 4 groups of speaker sockets can connect to 2 pair of speakers. Besides connect to active speakers, CH3/CH4 also can connect to another M4 amplifier to connect more speakers, in this way multiple amplifiers and multiple speakers can be connected in turn, to achieve one audio signal be shared in several rooms.
  • CH3/CH4 as audio input: one input corresponds to one output (ex. CH1 speaker socket will output the audio signal that CH1 inputs), which means that two groups of stereo audio signal (or 4 groups of mono audio signal) can be input at the same time.
  • Supporting wired 2 groups of stereo RCA and wireless Bluetooth 5.0 input, compatible with most common audio device such as phones, computers, TVs, MP3, TV, CD players etc. With U-disk input, it can be used as a digital music player, supporting MP3, WAV, APE, FLAC and WMA lossless formats.
  • With 4 groups of speaker sockets output, they can output at the same time and each channel with independent volume control. Its max output power can reach 50W×4, and equipped with high-quality 24V/4.5A power supply, enough to drive most home speakers.
  • Reasonable circuit layout, concise wiring and high-quality components to ensure HiFi clear sound and long time stable work. Separate design of small and large signal circuit for better circuit protection. Bluetooth 5.0 version with high-gain antenna, ensure more stable and faster transmission.
  • Propersize with exquisite appearance, aluminum alloy case is CNC machined and with anodizing process, more fashionable and durable, very suitable for home, office and desktop audio system use.
Product details
Brand
Nobsound
Manufacturer
Nobsound

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
See all reviews →
S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

You might also like

Similar items

View all →