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Gemini

Gemini Standalone DJ CD Player & Mixer with Bluetooth (CDM-4000BT) | Standalone CD, USB & Bluetooth DJ player + mixer - dual jog wheels - dual 1/4" mic in - no laptop

  • Based on 375 reviews
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Availability: 17 left in stock
Fulfilled by Audiosavings
Arrives Thursday, Aug 6
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Features

  • NO LAPTOP. NO SOFTWARE. Plays from CDs, USB drives, or Bluetooth streaming with no computer, no software, no subscription. Built-in 2-channel mixer with crossfader, 2-band EQ, gain control, and dual mic inputs everything you need for mobile DJ gigs, wedding sets, bar residencies, and club installs. Leave the laptop at home.
  • JOG WHEELS & FULL DECK CONTROL Two touch-sensitive jog wheels let you scratch, search, and pitch-bend across both decks. Variable 10% pitch control, instant cue, fader start, and manual loop with reloop give you hands-on creative control without software. Bluetooth input is assignable to either channel take song requests from any phone and mix them straight into your set.
  • PLAY ANY FORMAT Plays audio CDs, CD-Rs, and MP3-CDs. Two USB ports support drives up to 64GB across FAT, FAT32, and NTFS. Track titles display from embedded MP3 metadata properly tagged libraries navigate cleanly. For large collections, organizing by folder or numbered set list keeps things fast mid-gig.
  • DUAL MIC INPUTS & PRO OUTPUTS Two 1/4" mic inputs for DJ and MC simultaneously ideal for wedding announcing, karaoke hosting, and live introductions. Balanced XLR and RCA master outputs connect directly to any powered PA or amplifier. 2U rack-mountable in any standard 19" case.
  • BUILT TO TRAVEL & PERFORM RAM buffer anti-shock keeps playback clean over bumpy transport and vibrating floors. Standard 22U rack design fits any DJ booth, flight case, or mobile rig. Backed by a 1-year manufacturer warranty.

Description

Leave your laptop at home! The CDM-4000BT is a complete standalone DJ workstation with everything built-in for professional mixing performance. Mix from CD, USB, Bluetooth streaming, or line inputs seamlessly. Whatever your music source, this DJ player handles it all in one unit. Two independent jog wheels and decks let you search, scratch, pitch bend, and loop like a pro DJ. Full control over both sides simultaneously. Integrated 2-channel mixer with EQ, gain control, crossfader, and master outputs. Everything you need for professional DJ mixing in one console. Fully Standalone System CD, USB, and Bluetooth built in. No software, no setup, no subscriptions. Just plug in and play. CD, USB & Bluetooth Audio CDs, CD-Rs, MP3-CDs, USB up to 64GB. Bluetooth for live requests. Everything plays. Scratch. Pitch. Loop. Jog wheels: scratch, search, pitch bend. ±10% pitch, fader start, manual loop with reloop. Weddings. Bars. Clubs. Two 1/4" mic inputs — DJ and MC live at once. XLR out to any PA. Built for event work. XLR, RCA & Headphones Balanced XLR and RCA master outputs. Record RCA out. Dual headphone outputs. 2 RCA line inputs. Gemini Sound has been providing loud speakers to DJs, musicians, and people hosting parties since 1974. We are your one-stop shop for pro audio equipment and sound systems that can rock any size party or event, indoor or out. Whether you're just getting started or a seasoned pro, you can find the innovative and cutting edge technology you need to perform at a high level and provide a fun and enjoyable experience. Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Doesn't matter if you're a performer, sound guy, DJ or just like to party, you get 12 hours of wireless playtime + 200 watts of sound! Unleash the Gemini Sound GSYS-4800! 3000W, 12" subs, LED lights & remote. Transform your audio experience! Visit the Store

Brand: Gemini


Number of Channels: 2


Product Dimensions: 10"D x 19.02"W x 5.71"H


Item Weight: 5.5 Kilograms


Connectivity Technology: Line In - RCA x 2, Microphone 1/4" x 2


Number of Channels: 2


Connectivity Technology: Line In - RCA x 2, Microphone 1/4" x 2


Power Source: Corded Electric


Frequency: 20 Hz


Output Connector Type: Headphone 1/4", Headphone 1/8", Master XLR, Record RCA


Audio Input: Line In - RCA x 2


Voltage: 120 Volts (AC)


Item Dimensions D x W x H: 10"D x 19.02"W x 5.71"H


Item Weight: 5.5 Kilograms


Brand Name: Gemini


Manufacturer: Gemini Industries, Inc.


UPC: 747705007247


Global Trade Identification Number: 47


Manufacturer Part Number: CDM-4000BT


Model Number: CDM-4000BT


Item Type Name: DJ Digital Media Player


Warranty Description: 2 year limited warranty.


Unit Count: 1.0 Count


Included Components: 2 RCA cables, power cable, deck


Frequently asked questions

Yes, the Gemini DJ Deck does have Bluetooth capability. It is equipped with stand alone Bluetooth streaming, allowing you to wirelessly connect your devices and play music directly through the system.

The Gemini DJ Deck supports a variety of media playback options. You can play music from a CD or CDR, or use the USB port to play music from a USB device. It also supports Bluetooth streaming, offering flexibility to suit different DJ setups.

The Gemini DJ Deck has a 2 Band Equalizer that allows you to adjust the tone, specifically the bass (low frequency) and treble (high frequency) of your sound. This feature gives you the ability to customize your audio to match your preference or the acoustics of the venue.

Yes, the Gemini DJ Deck is equipped with an Anti-Shock feature. This functionality uses buffer memory to store data, thereby minimizing the risk of music skipping or interruptions that can be caused by vibrations or shock during use. This makes for a smoother performance and better user experience.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The Gemini Sound CDM-4000BT has received overwhelmingly positive reviews. It's praised for its functionality and excellent sound quality when using the CD players. However, many reviewers noted less than ideal performance from its Bluetooth connection and visibility of track titles on USB playback.

Pros

  • 🎹 Great value for the price, providing functionality beyond expectations
  • 🎚 Well-built and durable for professional use
  • 💿 Outstanding sound quality when using the CD players
  • 🎧 User friendly, even for beginners

Cons

  • 📱 Poor Bluetooth sound quality
  • 🎶 Track titles are not displayed during USB playback
  • 💡 Some users reported issues with the trackpad and lighting buttons
  • 🧭 The player requires a flat surface as tilting can affect performance

Should I Buy It?

If you are mainly interested in a CD player with a great sound quality, user-friendly features, and fair price, the Gemini Sound CDM-4000BT is a reasonable choice. However, if functions like Bluetooth streaming and USB track title display are top priorities for you, you might want to consider other products that can better cater to these needs.

    • Good piece of equipment for the price
Very good item for what I use it for operate well with hardly any feedback.
Reviewed in the United States on April 9, 2026 by Rickey witherspoon
    • SUPER
WORKS GREAT
Reviewed in the United States on October 14, 2025 by Roy Matthews
    • good cd mixer
so cool！
Reviewed in the United States on May 4, 2026 by Frank
    • Cue it up
This review is for Gemini Sound CDM-4000BT Stand Alone Bluetooth Streaming Professional DJ Dual Deck Media Player Mixer. I just received the item recently, so I can't speak to how long it will last, but I like what it is doing now. I am a beginner on one if these. So when it asked how many stars for beginners I give it 5 stars because I was able to figure it out from the documentation. I tried a whole lot of its features, and they all worked as advertised. This is not a sophisticated DJ mixer like a high priced professional might buy, but it is also not priced at the point that other guy might buy. But even though it is not that high priced item, it has a lot more features than I was expecting or even knew about before I bought this. I found really neat items like just by moving the fader, you can start a media playing. And it plays a lot of different media. I just needed a good CD player and I got so much more. So I am very impressed with this item and if just continues to work as it currently is, I am going to continue to be a happy camper. ... show more
Reviewed in the United States on July 21, 2022 by MRTN
    • I'm happy with it
Love this product
Reviewed in the United States on March 31, 2026 by Product is cheap and flimsy 😠
    • Nearly perfect.
I have been programming a radio show from home since the covid lockdown a couple years ago, and when I started I just threw together a rig with a cheap little mixer and a couple non-matching portable CD players, thinking it would tide me over until I got back into the station. Well, two years later I'm still doing my show from home, and that little rig, as functional as it was, was not fun. So it was beyond time for an upgrade. The Gemini Sound CDM-4000BT is a huge upgrade, to say the least. It does everything I need to program my show on the fly. It's solidly built for "pro" use, easily operated for anyone with basic soundboard and mixing knowledge, and it sounds excellent... for the most part. As a low-budget audiophile, sound quality is a priority for me. The CD players and general electronics of the CDM-4000BT sound excellent, and that is by far the most important thing for my use. However, the sound of the Bluetooth input is definitely underwhelming. I sometimes use my iPhone as a source, but the Bluetooth connection on the CDM-4000BT sounds muddy and flat. I tried to compensate by boosting the treble, but that only made it sound muddy and flat with boosted treble. Maybe ok for podcasts or spoken word recordings, but not music imho. It's also a bit disappointing because the cheap little $50 mixer was using had excellent Bluetooth sound. For my use though, I can get along great without the Bluetooth input. Or I can just use the cheap little mixer as a Bluetooth receiver and run it through the CDM-4000BT. In fact, the only reason I'm docking the CDM-4000BT one star is that the Bluetooth input is listed as a feature. So be advised if that feature is important to you. Otherwise I highly recommend the Gemini Sound CDM-4000BT. It's well-built and delivers excellent (non-Bluetooth) sound, at a reasonable price. ... show more
Reviewed in the United States on July 3, 2022 by tones
    • Asking to review to soon.
Just received the item my husband is happy this far really haven't had time to really process how well this item preforms still testing it out.
Reviewed in the United States on December 28, 2025 by LaShawn Williams
    • La peor OPCION POR SER CASI LA UNICA La peor OPCION POR SER CASI LA UNICA
Review Image by GADA
Review Image by GADA
No creo que sea un equipo profesional para DJs, debe ser tomado como un juguete para poner musica. Yo soy J profesional y lo probe, me dejo tirado 6 veces al detenerse la reproduccion repentinamente. Se que pueden pasar cosas por el estado mismo de ls CDs pero los mios estan en muy buen estado. Estos errores se dieron siempre en el lector del plato derecho. No habiendo mas opciones en el mercado vale la pena comprar el equipo pero siempre teniendo a mano un plan B. No lo volveria a comprar nunca. ... show more
Reviewed in the United States on June 23, 2025 Reviewed in the United States on June 23, 2025 by GADA

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