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Gemini UHF-4200HL Dual 100-Channel UHF Lavalier Wireless System

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Item#: UHF4200HL
UPC: 747705207227

This item is discontinued

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I DJ NOW Webstore – Orders to be Shipped only: 1 800 355 7746 I DJ NOW - Babylon, NY store (Pick Up In Store Only)
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Sun 11am - 5:00pm
631 321 1700

I DJ NOW - Queens, NY Store (Pick Up In Store Only)
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Sat 10am - 7pm
Sun 12 noon - 6pm
718 762 0100

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Free Shipping on most orders with minimum purchase of $50 or more for a limited time. Ground shipments only in the lower 48 contiguous United States. Excludes oversized or overweight items such as oversized speakers, oversized cases, trussing & staging. Other exclusions include some fluids, some parts & special orders. Any questions, please call 1-800-355-7746 during normal business hours. Offer subject to change or termination without notice. Not responsible for typographical errors.



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About This Product

When you need the ultimate in speaker performance, Denon Professional proudly offers the Delta Series—a family of powered loudspeakers that delivers the very highest level of acoustic performance, essential for critical musical productions, dynamic AV playback and clear, articulate spoken presentations. The Delta Series was designed from a clean sheet of paper to exacting performance standards, using custom-developed, purpose-matched components.

Dynamic Acoustic Performance

The Delta 10 features an integral low-distortion Class D amplifier capable of 2400 watts peak output (1200 watts continuous). The ultra-durable, linear transducers are paired with custom DSP-controlled crossovers and computer-designed high-frequency waveguide for an optimized 90° x 60° coverage field. Highly flexible connection/control facilities easily adapt the speaker to any usage condition. Plus, the entire Delta series utilizes dynamic thermal protection to ensure reliable, studio-grade sound reproduction at any volume level.

However, it’s not the printed specifications or the number of inputs and outputs that qualifies the Delta 10 as such an elite performer. It’s the performance. The sound is effortless, clear and natural. There is no sense of strain or coloration. With lesser speakers, the listener can immediately hear the “reproduced” nature of the sound; that unmistakable nasal artificiality and edgy, strident distortion that betrays the sound of an inaccurate speaker system.

When you hear the Delta 10, it sounds like real life. The full frequency range is conveyed with absolute authority, providing convincing, realistic sound from any genre of music. Bass instruments are full and muscular. Vocals are distinct and precise, while horns are rich and energetic, their characteristic “sheen” perfectly preserved. Drums and percussion have great impact and impressive weight. Even today’s complex, multi-layer music is reproduced with agility and nuance at any volume, from subtle indoor settings to full-volume outdoor concerts. When you need even greater low-frequency extension and output, simply add either the Delta Series 15 Sub or 18 Sub to create a system of absolutely uncompromised capability.

The Right Connections

Denon Professional recognizes that adaptability and connection flexibility are just as important to a successful event as outstanding sonic performance. Therefore, the Delta series features a built-in mixer with multiple inputs and outputs. The cabinets are scratch-resistant, fronted with a powder-coated metal grille—perfect for anything from vocal reinforcement in a lecture hall to music-rich multimedia presentations in convention. Even their rubber feet are reinforced with steel. You can hang the Delta series via their integrated M10 rigging points or use the “tops” as floor wedge monitors. They may also be mounted via industry-standard built-in 35mm pole sockets. This level of connection and mounting options means that virtually every situation benefits from using Delta Series loudspeakers.

Remote Control

Even if you can’t physically reach the speakers, you can still adjust them with your iPad or iPhone uing the Drive iOS app. With our wireless technology, you can precisely tailor the performance parameters of your Delta Series loudspeakers remotely. Level-match, adjust EQ, delay-compensation and more—from virtually anywhere. It’s streamlined, sound-shaping control at your fingertips, so you can easily adapt the Delta Series to new venues or performances, even if you’re away from the mix position.

Delta 10 Features:

  • Unrivaled acoustic accuracy via advanced engineering and design.
  • 2400 watts peak Class D power (1200 Watts continuous).
  • 10” LF transducer, 1.75” HF driver with 1” acoustic aperture.
  • Optimized 90° x 60° sound coverage field.
  • Works with free Denon Drive app for wireless sound-shaping control.
  • Wirelessly level-match, EQ, delay-compensation, and more.
  • DSP-controlled, custom crossover and active thermal protection.
  • Built-in mixer, (2) Mic/Line inputs, volume control, XLR output.
  • Limit/Clip indicator with red LED.
  • EQ contour switch; Ground Lift switch.
  • Trapezoidal cabinet with custom-molded heavy-duty handle.
  • Flyable via (12) M10 rigging points.
  • Designed and tuned in the U.S.A.

Gemini UHF-4200HL Specifications


Frequency range:USA: 682-698MHz
 Europe: 854-865Mhz
Receiving system:PLL synthesized
Frequency Stability:+/- 0.005%
Frequency Response:50Hz-15kHz +/- 3dB
Signal-to-Noise Ration:90dB
Modulation Mode:FM
IF Frequency:80.5 MHz
T.H.D.:1% (@ 1kHz)
Sensitivity:10dBuV (FM: 40kHz, S/N>85dB)
Power Supply:12V DC
Audio Output:Balanced XLR
 Unbalanced 1/4″
Dimensions210 x 138 x 45 mm


RF Power Output:<10dBm
Oscillation Mode:PLL Synthesized
Spurious Emission:> 50dB below carrier freq.
Frequency Stability:30.005% with quartz control
Max Modulation:+/-60kHz
Current Consumption:100mA
Battery Type:Two (2) AA Alkaline
Battery Life:8 hours
Microphone Element:Condenser Mic
Polar Pattern:Cardioid
The UHF-4200HL Box Includes:

(1) Gemini UHF-4200 Receiver
(2) UHF-4000 Beltpack Transmitters
(2) HSL-4000 Headset/Lavalier Microphones
(4) AA Batteries
(1) Power adapter
(1) User Manual & warranty card

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