Description
Product Overview
The REV3900-M dual mic karaoke processor is engineered for singers who demand studio‑level clarity without the complexity of multiple cables. A built‑in microphone receiver captures audio up to 30 meters away, providing a clean line‑of‑sight signal that eliminates interference and keeps the stage tidy. The unit’s robust metal chassis not only protects internal circuitry but also adds a sleek, professional appearance that fits any venue décor.
Designed with an upgraded effect chip, the processor delivers rich reverberation and echo effects that can be fine‑tuned via hidden metal knobs. Users can adjust microphone volume, bass, and treble independently, allowing precise control over vocal balance and instrumental accompaniment. The dual‑microphone configuration supports two singers simultaneously, making it perfect for duets, group performances, and karaoke battles.
Connectivity is versatile: front‑panel 2‑way and rear‑panel 2‑way microphone inputs, plus optical fiber, Bluetooth, and USB audio inputs. This range of options ensures seamless integration with amplifiers, speakers, and PA systems. The device operates on a corded 110 V AC power source, guaranteeing reliable performance for extended events without worrying about battery life.
Safety and sound quality are further enhanced by intelligent one‑button howling prevention. Multi‑point frequency shift technology suppresses feedback while preserving vocal richness, so singers can focus on expression rather than technical glitches. The processor’s compact dimensions (5.3 × 18.9 × 1.57 in) and modest weight of 8.03 lb make it easy to transport and set up for weddings, concerts, bars, and outdoor performances.
![[Product front view showing all components]](https://www.clickspots.store/wp-content/uploads/2026/06/609d370eeba047939b0aa799fd3c9a96.jpg)
Usage
The REV3900-M shines in environments where clear vocal reproduction and reliable wireless operation are essential. In wedding ceremonies, the dual‑mic setup allows the bride and groom to share a duet without tangled cables, while the built‑in receiver ensures the ceremony sound system captures every nuance. For live concerts and bar performances, the processor’s anti‑howling feature keeps the mix clean even at high volumes.
For home parties, the Bluetooth and USB inputs let users stream music directly from smartphones or laptops, turning any living room into a karaoke lounge. The adjustable knobs let casual singers experiment with bass and treble to match their favorite tracks, while the metal chassis protects the unit from accidental bumps during lively gatherings. Outdoor events benefit from the 30 m wireless range, allowing performers to move freely without losing signal quality.
Educators and vocal coaches also find value in the processor’s precise control options. By adjusting microphone gain and effect levels, instructors can create a tailored learning environment that emphasizes technique over background noise. The device’s compatibility with standard amplifiers means it can be incorporated into existing studio setups without additional hardware.
Why Choose Us
Our commitment to quality begins with the selection of premium metal components that resist wear and maintain acoustic integrity over years of use. Each REV3900-M unit undergoes rigorous testing for signal stability, ensuring that the 30 m wireless range delivers consistent performance even in crowded venues.
Customer support is a cornerstone of our service philosophy. Should any issue arise, our dedicated team is ready to assist with troubleshooting, firmware updates, and replacement parts. We stand behind the product with a comprehensive warranty, reflecting confidence in the durability and reliability of our engineering.
Unlike generic karaoke mixers, the REV3900-M integrates advanced anti‑howling technology that automatically detects and suppresses feedback without compromising vocal clarity. This feature, combined with the intuitive one‑button operation, makes the processor accessible to both seasoned performers and beginners. Our design philosophy emphasizes simplicity, so users can focus on singing rather than navigating complex menus.
Key Features
- Wireless dual‑mic receiver with 30 m line‑of‑sight range eliminates cable clutter for a clean stage.
- Metal chassis provides rugged durability and a professional look that fits any venue.
- Anti‑howling technology suppresses feedback while preserving vocal richness.
- Adjustable bass, treble, and mic volume give singers precise control over their sound.
- Responsive customer support and warranty ensure peace of mind after purchase.
FAQ
Can I use the processor with Bluetooth speakers?
Yes, the REV3900-M includes a Bluetooth input that pairs with any compatible speaker or sound system. Once paired, you can stream music directly from your phone while using the built‑in microphone receiver for vocals.
What is the latency when using the wireless microphones?
The device uses a high‑speed digital signal format that keeps latency below 10 milliseconds, which is imperceptible for live singing and ensures synchronization with backing tracks.
How does the anti‑howling feature work?
The processor employs multi‑point frequency shift technology that detects potential feedback frequencies and automatically shifts them, preventing howling without reducing vocal volume or clarity.
Is the unit compatible with standard PA amplifiers?
Absolutely. The front and rear panels each provide two microphone inputs, and the line‑out can be connected to any PA amplifier or mixing console using standard XLR or 1/4‑inch cables.
What warranty coverage does the product include?
We offer a one‑year limited warranty covering manufacturing defects. Our support team is available to assist with troubleshooting, and replacement parts are provided at no additional cost within the warranty period.




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