320W rated / 500W peak
High-output sound for bigger moments
Rated output supports sustained listening, while peak headroom helps musical transients land with greater impact.
1
of
11
Sonic Boom Ultra K
Big-stage sound. Karaoke built in.
A complete high-output system for music, movies, karaoke, and shared moments.
Ultra K brings 320W rated output, 500W peak power, a true 3-way 5-driver system, two wireless microphones, and an included external mixer/control console into one portable setup.
- 320W
- Rated output
- 500W
- Peak power
- 3-way
- 5-driver system
- 2 mics
- Mixer included
- Up to 24h
- Playback
Acoustic performance
Power you can feel. Detail you can hear.
A dedicated woofer, separate midrange drivers, and separate tweeters divide the sound into three focused bands for deeper impact, clearer vocals, and more open highs.
True 3-way
Dedicated lows, mids, and highs
Separate driver sections let bass, vocals, and upper detail each work in the range they are designed to reproduce.
6 × 9 in
Racetrack woofer with real low-end presence
The large racetrack woofer moves more air for fuller bass in music, movies, and live-style playback.
Built from the inside out
Five drivers, precisely coordinated.
The multi-driver layout and dedicated amplification work together to keep music and voices composed as the volume rises.
5 drivers
A complete full-range array
One woofer, two midrange drivers, and two tweeters form a balanced system designed for scale and clarity.
Independent drive
Controlled power across the system
Dedicated amplification and signal processing coordinate the driver sections for a more confident presentation.
Karaoke ready
Two microphones. One complete system.
The two included wireless microphones and separate mixer/control console make it easy to move from everyday listening to duets, hosting, and group performances.
Complete setup
From playlist to performance
Start with music, then switch into karaoke without building a separate stack of equipment.
2 wireless microphones
Ready for duets and hosting
Two matched wireless microphones are included for shared vocals, announcements, and group entertainment.
Sound and atmosphere
Shape the sound. Set the scene.
Supported sound controls and dynamic RGB lighting help Ultra K adapt from focused listening to movie night, karaoke, and celebrations.
Dynamic RGB
Lighting that follows the moment
Integrated lighting adds atmosphere for evening listening, karaoke sessions, and celebrations.
App control
Supported controls within reach
Use supported app and onboard controls to adjust compatible sound and lighting settings.
Sound modes
Tune the presentation to the room
Choose supported sound settings for music, movies, vocals, and different listening environments.
Flexible connections
Made for phones, TVs, and local playback.
Stream wirelessly, connect a compatible TV through HDMI ARC, or use AUX, USB, and microSD/TF playback for the source that fits your setup.
Wireless + wired
More ways to play
Connect wirelessly or use HDMI ARC, AUX, USB, and microSD/TF playback with compatible sources.
HDMI ARC
Bring fuller sound to the screen
Connect a compatible TV through HDMI ARC for movies, shows, music videos, and home karaoke.
TWS pairing
Build a wider stereo setup
Pair two compatible Ultra K speakers for separate left and right channels across a larger listening area.
TWS pairing requires a second compatible Ultra K speaker. The second speaker is sold separately.
Ready for longer sessions
Less charging. More time together.
Up to 24 hours of playback and support for up to 60W charging with a compatible power source help keep music, movies, and karaoke moving.
Up to 24 hours
Designed for longer listening
Extended playback supports day-to-night use without keeping the speaker tied to an outlet.
Outdoor minded
Water-resistant design
Built to handle everyday splashes and changing conditions during normal indoor and outdoor use.
Battery life varies with volume, content, lighting, microphone use, connection type, battery condition, and ambient temperature. Up to 24 hours is based on supported test conditions.
Water-resistant design for normal splash exposure. Do not immerse the speaker. Keep ports dry and allow the speaker to dry completely before charging.
Two finishes
Choose the Ultra K that fits your space.
Available in black and white, with the same complete speaker, microphone, and mixer setup in either finish.
Black or white
Two finishes, one complete system
Choose the finish that works with your room, event setup, or personal style.
Product details
Sonic Boom Ultra K specifications
- Model
- Sonic Boom Ultra K
- Rated output
- 320W
- Peak power
- 500W
- Acoustic system
- True 3-way, 5-driver system
- Woofer
- 6 × 9 in racetrack woofer
- Included microphones
- 2 wireless microphones
- Mixer/control console
- External mixer included
- Connections and playback
- Wireless playback, HDMI ARC, AUX, USB, microSD/TF
- Speaker pairing
- TWS stereo pairing with two compatible Ultra K speakers
- Playback time
- Up to 24 hours under supported test conditions
- Charging
- Up to 60W with a compatible power source
- Colors
- Black, white
- Included items
- Speaker, 2 wireless microphones, external mixer/control console
Customer voice
Customer Reviews
12 reviews
5.0
