Portable acoustic guitar amplifier 140W Bluetooth USB - Black - MUSICCUBE MCU-MC-MA90PROBL

The MUSICCUBE MA90 Pro is a compact, powerful professional portable amplifier equipped with USB and Bluetooth interfaces. It is designed to bring out the expression of acoustic guitars through a dedicated filter that removes excess frequency bands, while also providing advanced vocal effects. Its acoustic section uses two 6-inch neodymium woofers and four 2-inch NdFeB mid-tweeters. Class-D amplifier stages and automatic dynamic control deliver 140 WRMS, with 220 W peak power.

The unit is easy to carry and can operate entirely from batteries. CH1 and CH2 accept two microphones, including microphones with independent phantom power, or two musical instruments; CH3 and CH4 accept two acoustic guitars. Bass, Middle and Treble tone controls are provided, together with a 3.5 mm mini-jack analogue auxiliary input and a mobile-phone connection for Live and rec out through the supplied digital cable, whose opposite end has a USB interface.

Once the mobile phone is connected, the dedicated app provides a live loudspeaker function with various analogue sound effects and further software features, including internal recording and live streaming. Bluetooth and USB IN also allow files to be played from a USB drive. The 3.5 mm digital audio interface integrates directly with mobile apps and supplies a versatile range of effects for performances.

CTLE linear equalisation compensates for high-frequency loss during vocal-signal processing, retaining vocal richness while improving clarity. Four effects are built in: hall, reverb, delay and chorus. For stereo effects, two i-MA90 units can be connected in series, providing up to 12 effect channels. The dedicated line output allows connection to a mixer and a subwoofer.

Power can come from 2 sets of integrated lithium batteries. They are removable and replaceable and can operate for more than 6–12 hours when fully charged. A dedicated LCD display shows battery level. The colour is black and the package includes a soft bag.

User benefits and applications: Bluetooth connectivity with playback from a mobile phone; inputs for 2 guitars and 2 microphones or instruments; playback of various analogue sound effects through the APP software; live performances, sound reinforcement, outdoor performances without a power source and use by musical-instrument enthusiasts.