ARRAROWN AK45 Bluetooth 5.0 Stereo Amplifier 40W×2

The ARRAROWN AK45 is a compact Bluetooth 5.0 stereo power amplifier delivering 40W×2 RMS with mic input, USB/SD playback, FM radio and versatile wired connections for home or small-venue audio setups.

Compact yet feature-rich, the AK45 blends a modern digital amplifier stage with classic controls so you can drive passive speakers, connect multiple sources, and add a microphone for karaoke or announcements. It accepts AC 110–240V or DC 12V/5A power, supports 4–16 Ω speakers, and includes treble/bass tone controls plus six preset EQ modes for quick tonal shaping.

How will this amplifier connect to my devices?

The AK45 supports both wireless and wired inputs so you can play from phones, TVs, and legacy audio gear. Bluetooth 5.0 provides a stable wireless link while the rear panel and front inputs handle USB, SD, RCA (AUX), and microphone signals.

• Bluetooth 5.0 for smartphones, tablets and laptops
• USB and SD card slots for direct playback of files
• RCA AUX input for TVs, CD players and older sources
• Dedicated MIC jack with independent mic volume control

What sound performance and power can I expect?

Rated at 40W per channel (RMS) into a 2.0 configuration, the AK45 is engineered as a HiFi-oriented mini amplifier with low distortion and a high signal-to-noise ratio for clear playback at moderate volumes. The amplifier also lists a peak music output for short-term dynamic headroom on demanding passages.

• 40W × 2 RMS continuous power for two channels
• Up to 600W PMPO (peak) for transient dynamics
• Measured distortion ≤0.5% and SNR around 85 dB for clean sound
• Designed for passive speakers rated 4–16 Ω (4–8 inch drivers recommended)

Can I use it for karaoke, parties and small home theaters?

Yes — this unit includes a microphone input with dedicated volume control and tone keys (Treble/Bass) that let you tailor vocal and music balance. FM radio, remote control, and selectable EQ presets make setup fast for different scenarios like gatherings, background music, or watching movies.

• Mic input and mic volume knob for karaoke or announcements
• Built-in FM tuner with multiple station presets
• Remote control and six EQ modes for quick adjustments
• Compact footprint for shelf placement in living rooms or AV racks

Who is this for? The ARRAROWN AK45 is suited to people who want a small, affordable HiFi-capable amplifier to power bookshelf or compact tower speakers: hobbyist listeners, small apartment dwellers, karaoke hosts, and educators who need an easy-to-use AV hub. It’s ideal when you need Bluetooth convenience plus legacy inputs and a microphone option without a large, complex receiver.