JOYO Vibe Cube BA-30 (JOYO-BA-30 BK) 30W Bass Amp with Bluetooth 5.1

For bass practice at home, this compact combo can play backing tracks over Bluetooth while you work through a part. Want to capture an idea without adding a separate audio interface? Its OTG connection is designed to send audio to a phone or computer. The 30W amp also offers headphone practice and two ways to power it, though portable use requires a suitable external power bank.

Why it’s worth it

The Vibe Cube BA-30 combines a 4-inch speaker with a 3-band EQ for adjusting bass, midrange, and treble. A separate MID FREQ control helps target the midrange, while built-in compression can smooth the attack of a bass line. These controls give players more ways to shape their sound than a basic practice amp with only simple level adjustment.

Bluetooth 5.1 lets you stream backing tracks, and the 3.5mm headphone output supports quieter practice. For recording, OTG connects to a phone or computer through USB-C, with a dedicated volume control for the recording signal. That combination makes the amp useful for running through a song at home, recording a demo, or preparing material for a livestream. Buyers often praise its sound, compact size, and Bluetooth, though opinions on its volume are mixed.

What to know

This is a 30W, single-channel solid-state bass amp with a 4-inch speaker. It measures 7.24 x 8.5 x 6.5 inches and weighs 2,700 g, so the top handle and compact format are relevant if you need to move it between rooms or carry it to a practice spot. It is not a self-powered battery amp: use the included adapter indoors, or connect a USB-C power bank that supports PD 2.0 or later and outputs at least 65W. The power bank and a cable capable of 65W are not included.

That power requirement matters more than the word “portable.” If you want to practice away from an outlet, check that your power bank and cable meet the stated requirements first. Buyers disagree about loudness, so this compact setup is a more natural fit for individual practice and small-scale use than for situations that call for consistently high stage volume. You’ll appreciate it if portability, tone controls, and direct recording matter more than a larger speaker setup. It may not suit you if you need an amp with an internal battery or dependable high volume for a larger space.

How to use it

Connect the included adapter for wall-powered use, or use a compatible USB-C power bank for portable operation. Pair a device over Bluetooth to play along with tracks, use the headphone jack when you want to practice privately. For OTG recording, connect a phone or computer through USB-C and adjust the dedicated recording volume. The package includes the amp, power adapter, power cable, and owner’s manual.

What to clarify

Does it have a built-in battery? No. It needs continuous external power from the included adapter or a compatible power bank.

Can it play music from a phone? Yes. Bluetooth 5.1 is provided for streaming backing tracks from a paired device.

Can it record directly to a phone or computer? The OTG connection is intended for direct recording over USB-C, with a separate control for recording level.

When it makes sense

Choose the BA-30 if you want a compact bass practice amp that can handle backing tracks, headphone sessions, and basic direct recording without building a larger setup. Compared with a more demanding gig-focused rig, its small speaker and mixed buyer feedback about volume make the intended scale important. For home practice, working on song ideas, or a portable setup where a qualifying power bank is available, its connectivity and tone controls offer practical flexibility.