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🎁Exclusive Gift:Admqx Portable Bluetooth Party Speaker,Wireless Outdoor Speaker

€30,99 EUR
€188,00 EUR
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320W Rated Output

True 3-Way, 5-Driver System

2 Wireless Microphones + Mixer Included

Up to 24 Hours of Playback

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Product Specifications

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
Sonic Boom Ultra K complete speaker, microphone, and mixer system

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.

Black Sonic Boom Ultra K speaker on a clean white background
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.

Sonic Boom Ultra K true three-way five-driver system
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.

Sonic Boom Ultra K racetrack woofer detail
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.

Sonic Boom Ultra K coordinated acoustic engineering overview
5 drivers

A complete full-range array

One woofer, two midrange drivers, and two tweeters form a balanced system designed for scale and clarity.

Sonic Boom Ultra K dedicated amplification overview
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.

Sonic Boom Ultra K home karaoke setup
Complete setup

From playlist to performance

Start with music, then switch into karaoke without building a separate stack of equipment.

Two wireless microphones included with Sonic Boom Ultra K
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.

Sonic Boom Ultra K RGB lighting modes
Dynamic RGB

Lighting that follows the moment

Integrated lighting adds atmosphere for evening listening, karaoke sessions, and celebrations.

Sonic Boom Ultra K supported app controls
App control

Supported controls within reach

Use supported app and onboard controls to adjust compatible sound and lighting settings.

Sonic Boom Ultra K supported sound and EQ controls
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.

Sonic Boom Ultra K rear connection panel and playback inputs
Wireless + wired

More ways to play

Connect wirelessly or use HDMI ARC, AUX, USB, and microSD/TF playback with compatible sources.

Sonic Boom Ultra K connected to a compatible television
HDMI ARC

Bring fuller sound to the screen

Connect a compatible TV through HDMI ARC for movies, shows, music videos, and home karaoke.

Two Sonic Boom Ultra K speakers paired for a wider stereo setup
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.

Sonic Boom Ultra K long-session battery and charging overview
Up to 24 hours

Designed for longer listening

Extended playback supports day-to-night use without keeping the speaker tied to an outlet.

Sonic Boom Ultra K water-resistant design in an outdoor setting
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 and white Sonic Boom Ultra K color options
White Sonic Boom Ultra K speaker with two wireless microphones and mixer
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

5.0 out of 5 · Based on 13 reviews

Adetaiore

Amazing Sound and Perfect for a Large Garden Party

I recently purchased the YEAHBOX Sonic Boom Ultra K Karaoke Speaker, and honestly, I am extremely impressed with it.

I used it for a garden party with over 100 people, and the speaker performed exceptionally well. The sound was clear, powerful and well-balanced, without needing to push the volume to its maximum.

The wireless microphones were excellent too. Even with over 100 people at the party, everyone could hear the speeches, announcements and voices clearly from the speaker.

The music quality was also fantastic. The bass was strong, the vocals were clear, and the overall sound filled the garden beautifully. I particularly liked having the karaoke features and microphone controls available, which made the speaker much more versatile throughout the event.

What impressed me most was that it handled a large outdoor gathering without struggling. I honestly wasn't expecting it to perform this well.

I would highly recommend the Sonic Boom Ultra K to anyone looking for a powerful, versatile and good-quality karaoke speaker for parties, family gatherings, outdoor events or entertainment.

Excellent product. Excellent sound. Excellent microphones. Excellent value for money.

Jacob Deng

This Thing Is an Absolute Beast!

Absolutely impressed with this speaker! I've owned and tested a bunch of Bluetooth speakers over the years, including JBL, Bose, and W-King, and this one seriously surprised me.

The bass hits hard, the volume gets crazy loud, and even at around 50% it already fills the whole area. What I like most is that the sound stays clear when you turn it up. No annoying distortion, no rattling, just strong bass and clean vocals.

I mainly use it outdoors, especially at the beach and backyard, and the connection has been very stable so far. No random Bluetooth dropouts, and pairing is quick and easy. Battery life has also been solid for long listening sessions.

It is definitely a big speaker, but for the amount of power you get, I'm totally fine with the size. If you want something with serious bass, loud volume, and that real boombox feel, this thing delivers.

Very happy with it so far. Definitely one of the best portable speakers I've used. 🔥🔊

everod s.

One of the best Bluetooth speakers I ever bought

I am very impressed with this Bluetooth speaker. It is very versatile very clear signing very deep base very loud and powerful once again very very clear highs and mids. I recommend it. You will not be disappointed.

Thomas S.

Sehr gut für eine noch tragbare Box.

Für eine Box die noch als "tragbar" gilt, geht sie sehr gut. Bass ist gut, man muss sie halt in Wandnähe stellen da bekommt der Bass richtig Volumen. Mitten in Raum flacht der Bass ab, aber auch logisch.

Positiv und Negativ zugleich finde ich die Fernbedienung. Das positive man kann Bass und Höhen darüber direkt verstellen aber leider geht die Lautstärke gesamt nicht zu regeln zumindest bei Bluetooth eventuell auf den andern Kanälen ( Aux, SD, Acr..). Zudem lasst sich die Box über die Fernbedienung nicht ein und ausschalten was ich extrem Schade finde denn wenn man sie über Arc über den Tv nutzt kann man jedesmal zur Box gehen und sie ein und aus schalten. Der Powerknopf auf der Fernbedienung ist nur das die Fernbedienung selbst eingeschalten wird. Wirklich Schade darum sie voll und ganz aus Soundbar zu nutzen.

Ich nutzen sie auch in meinem Bus, ich habe kaputte Lautsprecher und da gibt sie schon mehr her als die Standard Lautsprecher im Auto aber so das es den Raum ausfühlt im Gegensatz zu den Auto Lautsprechern, so ist es leider nicht, da fehlt das räuliche Klangbild. Hatte die Entscheidung zwischen Boombox 4 und der Yeahbox und ich bereue sicher nicht mich dafür entschieden zu haben, mehr Leistung, größerer Akku und dazu noch günstiger. Bei JBL gefallen mir die Mitten überhaupt nicht, gut zu merken bei Rock und Metal.

Equalizer Taste dierekt an der Yeahbox hat 3 Stufen. Stufe 1. Sehr viel Bass, aber dann geringere Gesamtlautstärke, verzerrt dann, ab ca. 60%. Stufe 2. Normaler Kräftiger Bass von leise bis Laut ziemlich gleichmäßig, auch bis hohe Lautstärke fast verzerrungsfrei. Genau so nutze ich ihn auch. Stufe 3. Bass ist weniger mehr auf Mittel und Hochton ausgelegt ( sicher länger Akkuleistung).

Bin von der Box selber begeistert, Party für ca 10 Leute die kräftige Musik nebenbei haben möchten sicher voll in Ordnung. Für mehr ist dann sicher die zb. JBL 320 angesagt. Denn das kann man nicht ändern 2x 25 oder 30cm Woofer machen mehr Druck als ein einzelner 20cm Woofer.

Ich bin mir aber ziemlich sicher in dieser Größe ist sie gerade eine der Stärksten oder die Stärkste Tragbare Box.

FAQs

What are the dimensions and weight of this speaker?

The speaker measures 59.5 x 24.8 x 31.3 cm and weighs approximately 0.56kg.

Why doesn't the Admqx app save my custom EQ settings?

The app saves your custom EQ setings while itis running If the app is completely closed, the speaker may return to the defaut EQ setings when reopened.
Please keep the app active to maintain your personalized sound settings.

Can two speakers be connected together for stereo sound?

Yes. You can pair two compatible speakers using TWS mode for a wider stereo sound experience.

Can the Ultra 320's lighting be controlled without the app?

Yes. You can control the lighting directly from the speaker.Simply short press the Power button to switch between different ight modes.

Do I need to use the app to switch between different input modes?

No. Youcan swtch playback modes directy from the speaker. Press the M (Mode) button to cycle through avalble input options, incuding Buetooth and other connected audio sources.
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