The work of a host at an off-site event begins long before the first guests are welcomed. You need to bring a speaker system, mixing console, wireless microphone systems, amplifier, power and connection cables, and then connect and configure everything correctly. Even a relatively compact equipment setup can easily take up a significant part of a car’s trunk, while sound preparation may take half an hour or more. For a show host, entertainer, or off-site ceremony organizer, this is time that could be better spent preparing the program and interacting with guests.

The situation becomes even more challenging at outdoor venues. A wedding ceremony in a park, a children’s party, an open-air presentation, or a corporate event at a countryside location does not always provide access to the power grid. In such cases, even a properly assembled set of professional equipment may still depend on the nearest power outlet.

Maximum Acoustics Mobi.150A, the 2023 version, offers a different approach — an All-in-One format. It is an active speaker system that combines an amplifier, speakers, mixer, media player, battery, and wireless microphone system in a single enclosure. You can take the system out of the car, switch it on, and have it ready for use in approximately five minutes.

One mobile system instead of a trunk full of equipment

With a conventional mobile setup, a host has to transport a speaker system, amplifier, mixer, two microphones, a wireless system receiver, and a set of cables separately. Every additional device means not only more luggage but also another connection point that needs to be checked before the event begins.

The Maximum Acoustics Mobi.150A integrates the main components into a single enclosure. It is a two-way active speaker system featuring a 15-inch low-frequency driver and a 1-inch high-frequency driver. The built-in Class D amplifier delivers 150 W of rated power, while the operating frequency range of 46 Hz to 20 kHz enables the system to reproduce both speech and musical accompaniment.

An especially important advantage for hosts is that the system comes with two wireless microphones, while their receiver is already built into the speaker system. There is no need to purchase a separate wireless receiver base, find a place for it, provide it with power, or connect it to a mixer. The microphones can be used by the host, for competitions and activities, guest performances, or by two speakers simultaneously.

How to set up your sound in 5 minutes

Preparing the Mobi.150A for an event does not require complicated connections. First, take the system out of the trunk and position it where needed. Thanks to its wheels and retractable handle, it can be conveniently moved around the venue without having to carry the enclosure by hand.

Next, simply switch on the power. The built-in battery allows the system to operate without being connected to a fixed power grid, so there is no need to immediately look for an outlet or run an extension cable across the venue.

The next step is connecting the music. The host can enable Bluetooth on a smartphone or tablet, pair the mobile device with the speaker system, and play background music, a jingle, a soundtrack for a competition, or other audio content.

After that, all that remains is to switch on the included wireless microphones and adjust the necessary settings on the control panel. Volume, tone, and the Echo effect can be configured without a separate mixing console. As a result, instead of assembling a chain of several devices, the host gets an almost ready-to-use workstation.

Mic Priority: when you do not need a dedicated sound engineer

One of the most practical Mobi.150A features for a host is Mic Priority. At a typical event, a sound engineer has to constantly monitor the balance between speech and musical accompaniment. As soon as the host starts speaking, the music level needs to be lowered and then restored once the announcement is over.

Mic Priority automates this process. When the host speaks into the microphone, the background music is automatically reduced, allowing the voice to remain clearly audible. This is especially useful for announcements, competitions, presentations, off-site ceremonies, and children’s events where the program involves frequent switching between music and speech.

For a mobile host, this feature effectively replaces one of the routine tasks normally handled by a sound engineer. There is no need to constantly approach the mixer, manually adjust the backing track level, or ask an assistant to control the sound.

Autonomous operation where there is no power outlet

The mobility of a speaker system only makes sense when it is not tied to the power grid. The Mobi.150A is equipped with a built-in 12 V 7 A battery that provides up to 4.5 hours of autonomous operation. This capacity is sufficient for many off-site ceremonies, presentations, children’s programs, and other medium-length events.

The 2023 version also received another useful feature — additional terminals for connecting an external power source. If the event runs longer than expected and there is no access to the power grid, the system can be connected to a suitable external source, including a car battery. For a host, this provides an additional backup option when an event lasts longer than originally planned.

150 W and a 15-inch driver for speech and music

A mobile format does not mean that the system is designed exclusively for quiet background music. The Class D amplifier with 150 W of rated power works together with a large 15-inch low-frequency driver. This configuration delivers rich musical sound and confident voice reproduction both indoors and at outdoor venues.

The two-way design with a dedicated 1-inch HF driver handles the upper part of the frequency range. This is important for speech intelligibility, as a host’s speaker system should not simply play loudly — it should also help guests clearly understand every word.

Built-in mixer for different scenarios

The Mobi.150A does not limit users to wireless microphones and Bluetooth. The built-in MP3 player allows content to be played from external storage media, while the available interfaces include USB Type-A and a TF card slot.

For connecting additional equipment, the system features a 1/4-inch Jack input, two 3-pin XLR inputs, AUX, and RCA. These connections make it possible to add another audio source, a wired microphone, a musical instrument, or other compatible equipment. A 3-pin XLR output is also provided, expanding the possibilities for building a larger sound system.

The built-in mixer allows the low and high frequencies to be adjusted separately using the Bass and Treble controls. The Echo effect is useful for vocals, karaoke, competitions, or situations where the voice needs a more expressive sound. All of these functions are available without having to transport a separate mixing console.

One system for different event formats

The Maximum Acoustics Mobi.150A can be a practical solution for show hosts and presenters who regularly work at different venues. Entertainers can use the system to quickly organize musical accompaniment for children’s programs. For organizers of off-site ceremonies, autonomous power makes it possible to set up sound where there is no power outlet nearby. Speakers and trainers can benefit from wireless microphones and the ability to play audio materials directly from a smartphone.

At the same time, the plastic enclosure is well suited to regular transportation, while the wheels and retractable handle make it easier to move the system between the vehicle and the event area.

Mobi.150A — a workstation for the mobile host

The Maximum Acoustics Mobi.150A is more than just a standalone active speaker. In one mobile enclosure, the host gets a speaker system, amplifier, mixer, MP3 player, autonomous power supply, Bluetooth, and a ready-to-use wireless system with two radio microphones.

This format helps reduce the amount of equipment that needs to be transported, shortens setup and connection time, and enables work at locations without constant access to the power grid. Instead of bringing a complicated setup with dozens of connections, you only need to bring the Mobi.150A for UAH 11,880, switch it on, connect the music and microphones — and you are ready to start the program.

Visit the Maximum Acoustics Mobi.150A product page to explore the specifications in more detail and order the autonomous speaker system with a 36-month warranty. For a host, entertainer, or organizer of off-site events, it is an opportunity to replace a complicated collection of equipment with one ready-to-use mobile system and spend less time dealing with gear and more time focusing on the event.