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  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K
  • YEAHBOX ULTRA K

YEAHBOX ULTRA K

(4.8)
YEAHBOX ULTRA K pairs 320 W rated output and three-way sound with two wireless microphones and a separate mixer. Balance the music and your vocals independently, then make the next chorus your own.
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  • Detail

    Big sound. A part for you.

    Bring the sound you love and the voices you know into one shared space. Ultra K uses the same speaker enclosure as Ultra, adding two wireless microphones and a separate mixer so you can shape the balance and share the next chorus.

    The chorus is yours

    Two wireless microphones turn a favourite song into a duet. Pass one to a friend and bring your own voices to the moment.

    Find your balance

    The separate mixer gives your voice and the music their own volume controls, with tone and effect adjustments close at hand. Find the balance that makes your next song feel right.

    Your voiceThe two included wireless microphones offer sensitive pickup, as described by the manufacturer. Adjust your voice level independently on the mixer.
    Your mixAdjust the accompanying music independently from your voice. The mixer’s tone and effect controls help you shape the balance for each song.

    Power, with room for detail

    Give the rhythm weight and the vocals room to shine with 320 W rated output. The three-way system brings a 6 × 9-inch racetrack woofer, two midrange drivers and two tweeters together for a full, detailed sound.

    Dual-core sound engineCoordinated dual-core processing supports fine detail and clearer layers, giving voices and instruments their own space.
    Dual-amplifier driveDual amplification supports musical dynamics and low-frequency control, giving the rhythm weight and keeping the bass composed.

    Light meets the music

    RGB lighting brings colour to the room as your playlist unfolds. Set the mood for a quiet listen or a chorus shared with friends.

    Your music, from your seat

    Use the app on your phone to control music playback, adjust the volume and change the lighting mode. Keep Ultra K in its listening spot and make everyday adjustments from your seat.

    Your sound, within reach

    Choose Full Range, Bass or Outdoor with the EQ button to suit the song and the setting. The physical volume roller on top keeps the next adjustment at your fingertips.

    Every source has a place

    Listen your way with Bluetooth 6.0 streaming, USB or TF/microSD playback, and AUX for wired sources. Connect a compatible TV through HDMI ARC to give films and concert recordings a fuller sound.

    A front-row feeling

    Connect a compatible TV through HDMI ARC and give concert recordings and movie nights more presence. Ultra K’s 320 W rated output brings weight to the soundtrack, in a listening space you can share.

    Keep the music going

    Settle into longer listening with approximately 24 hours of playback at 30% volume, as stated by the manufacturer. When it is time to recharge, 60 W charging gets Ultra K ready for the next occasion.

    Give music a wider stage

    Pair two compatible Ultra K speakers through TWS for separate left and right channels. Place them apart to open up the stereo image and give familiar tracks more room.

  • Customer Reviews
    4.8

    Reviews (18)

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    Car*******cia

    ¡Qué pasada! This speaker brings the party. The ability to adjust vocals separately is a game-changer. I sound amazing, even if I'm tone-deaf. My friends are jealous. Best purchase this year!

    Emma*********Berg

    This thing is a beast! 320W of pure power. The three-way sound system creates such an immersive experience. I love that I can balance my vocals against the track using the separate mixer. It makes every song feel personalized. The two wireless mics are super convenient, no tangled wires. Great for sing-alongs with friends. Highly recommend if you want to bring the concert vibe home!

    Jan ********Berg

    Lekker ding! Perfect for our backyard parties. The three-way sound fills the space nicely. We had a karaoke battle last night, and this box handled everything without breaking a sweat. Worth every euro.

    Kata********wak

    Wow! The bass is incredible. We used it for our family birthday party and everyone was impressed. The ability to adjust vocals independently is a game-changer. Now I sound like a pro, even though I'm not. Love it!

    Jan******ies

    Perfect for our family gatherings. Being able to adjust mic volume independently from the music makes singing so much more fun. Highly recommend!

    Han******ler

    Gute Leistung. The bass is strong, maybe too strong for my apartment walls. The wireless mics work well, no lag. Setup was easy. Just wish the manual was less confusing. But once you figure it out, it's great fun.

    Han******ler

    Endlich! A speaker that can handle German party volumes without distorting. The separate mixer allows me to balance the Schlager music and my vocals perfectly. My wife says I'm still off-key, but at least I'm loud and clear. Highly recommended for home concerts.

    Sop*******ois

    Love the wireless mics. Setup was super quick and the sound quality is crisp. Great for karaoke nights at home.

    Sofi********uez

    ¡Increíble! La potencia de 320W es brutal. Me encanta poder ajustar mi voz independientemente de la música. Las fiestas en casa han subido de nivel.

    Sop*******ois

    Great sound and the mixer is intuitive. However, it's heavier than my ego after a good performance. Still, the three-way sound fills the room nicely. Just wish the battery lasted longer than my enthusiasm.

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