Coolmusic acoustic guitar amplifier BP80

When a small music setup needs to handle more than one source, a single-input amp can mean extra gear and awkward workarounds. The Coolmusic BP80 is a battery-powered acoustic guitar amplifier with six inputs, Bluetooth and a three-band EQ, aimed at players who want to bring instruments and microphones together in one portable unit. Its listed connections also suit a casual rehearsal or an outdoor playing session where plugging in several sources matters. One useful detail to weigh up: the product information does not state how long the battery lasts, so it’s hard to judge whether it will cover a longer session without access to power.

Technical details

The BP80 is listed as a 100W amplifier, with an 8-inch woofer and a 3-inch tweeter. It has four musical instrument inputs and two auxiliary inputs, plus Bluetooth, phone input, CD/MP3 input and a USB connection. The description says it can connect two instruments, two microphones and two phones or computers at the same time, check that this stated arrangement matches the sources you plan to use.

A three-band EQ lets you adjust low, mid and high frequencies, and the microphone interface includes 48V phantom power for condenser microphones as well as support for dynamic microphones. A master control, headphone input and DI output round out the listed controls and connections. The information does not specify battery runtime or dimensions, so those practical details remain unknown.

Getting the most from it

This setup is aimed at more than solo guitar practice. For example, at a small rehearsal, you could connect a guitar and keyboard, add microphones, then use the EQ to adjust the overall sound for the room. Bluetooth and the auxiliary options offer ways to bring in audio from a phone or computer, while the headphone output gives you a way to listen without using the speaker.

It suits you if you want a single amp to accommodate a mix of instruments, microphones and playback sources. Compared with a simpler amp built around one instrument input, the BP80 gives you more connection options in one unit. That flexibility is useful only if you’ll actually use those inputs, a solo player who needs little more than an amp for guitar may not benefit from the extra connections.

Usage tips

Before setting up, identify which sources will use the instrument inputs and which will use the auxiliary inputs. Keep the master control within reach as you bring sources in, and use the three-band EQ to make modest adjustments rather than assuming every room or instrument needs the same settings. If you’re using a condenser microphone, the stated 48V phantom power is relevant, for other microphone types, the interface is also described as supporting dynamic mics.

For a small get-together, a practical setup could be guitar, a microphone and phone playback, with the amp’s speaker handling the sound. If you need to monitor quietly, there is a headphone input. If you need to send a signal onward, a DI output is listed, though the product details do not explain its signal behaviour or routing.

Three specific questions

Can it connect several sources at once? The description lists six inputs and says it can connect two instruments, two microphones and two phones or computers at the same time. Confirm that the input types suit your equipment.

Does it work with a condenser microphone? Yes, the listed microphone interface has 48V phantom power and is described as compatible with condenser and dynamic microphones.

Can you play music wirelessly? Bluetooth is included, alongside phone, CD/MP3 and USB connection options. The information does not specify supported Bluetooth versions or file formats.

Before buying it

Choose the BP80 if you value multiple input options, Bluetooth and a battery-powered format in one acoustic guitar amp, particularly for small group playing or mixed-source setups. It may not suit you if battery runtime is essential to your decision, since no duration is provided, or if you only need a basic amp for one instrument. Given its design, the strongest reason to choose it is its combination of inputs—not a documented battery life or detailed portability measurements.