Powerful 15-Inch Passive Speaker
R15P-III 15 inch point source speaker
Applications
- Small FOH
- Stage Monitor
- Near-Field Sound
Feature
- Self-powered full range speaker
- Elastic bass
- Long throw rubber edge LF driver
- Rotatable 80×50° directivity horn
- Built-in amplifier and DSP
Technical Specification
| Parameter Name | Parameter Value |
|---|---|
| FREQUENCY RESPONSE | 50 Hz-18 kHz (±3 dB), 30 Hz-20 kHz (-10dB) |
| NOMINAL COVERAGE | 80° x 50° |
| MAXIMUM SPL | 123 dB SPL, 129 dB SPL peak |
| CHANNEL GAIN | CH1 (LOW): 26dB, CH2 (HI): 20dB |
| POWER RATING (AES) | 2 * 500W@4Ω + DSP |
| INPUT IMPEDANCE | 18kΩ balanced / 9kΩ unbalanced |
| THD+N (0.1w to 1/2 power) | <0.05% |
| SIGNAL TO NOISE RATIO | >98dB |
| COMMON MODE REJECTION RATIO | >50dB |
| VOLTAGE REQUIREMENT | 200-240VAC 50Hz |
| DRIVERS | LF: 1×15″ woofer (75mm Voice coil)HF: 1×3″ (1″ throat) compression driver (75mm Voice coil) |
Physical Data
| Parameter Name | Parameter Value |
|---|---|
| Dimensions (HxWxD) | 686 x 456 x 445 mm / 27″x18″x18″ |
| WEIGHT | 31 kg / 68 lbs |
| RIGGING | M8 top + 35mm bottom |
| MATERIALS | 15mm, 18mm Baltic birch plywood |
| FINISH | Black Polyurea paintings |
| GRILLE | Black epoxy mesh grille with acoustically reticulated cloth |
| DIAGRAMS | Detailed dimension diagrams for front, top, and side views provided in image. |
ZSOUND R15P-III | The Ultimate Powerful 15-Inch Passive Speaker
When organizing events in large bars, multi-function halls, or auditoriums, the requirement for raw energy and sonic depth is non-negotiable. The ZSOUND R15P-III is designed to meet these heavy-duty demands, serving as a Powerful 15-Inch Passive Speaker (a professional loudspeaker that requires an external power amplifier to produce sound). As the larger sibling in the R-Series, this unit provides the extra “oomph” needed to move air in expansive spaces while maintaining the precision that audiophiles expect.
Large-Format Drivers for Deep Bass and Clear Highs
The secret to the R15P-III’s performance lies in its massive 15-inch “Low-Frequency (LF) Driver” (the internal component responsible for producing deep bass and mid-range frequencies). Because a 15-inch cone has more surface area than smaller drivers, it can reproduce lower frequencies—down to 55 Hz—with much greater ease. This driver is paired with a 75mm “Voice Coil” (the coil of wire that generates the motive force to move the speaker cone). A larger voice coil allows the speaker to handle more power and heat, ensuring it doesn’t distort even when the party is at its peak.
For the high end, the R15P-III uses a 1.75-inch “Compression Driver” (a specialized driver designed to push high-frequency sounds through a horn with high efficiency). This combination allows this Powerful 15-Inch Passive Speaker to deliver a “Maximum SPL” (Sound Pressure Level, which measures the peak loudness of the speaker) of a staggering 131dB. This is loud enough to cut through the noise of a crowded dance floor or a cheering audience without losing “Acoustic Intelligence” (the clarity and understandability of the audio).
Targeted Dispersion with a Rotatable Horn
One of the most innovative features of this Powerful 15-Inch Passive Speaker is its 90° x 50° “Rotatable Horn” (the flared part of the speaker cabinet that controls the width and direction of high-frequency sound). In some venues, you might need to mount the speaker horizontally to save space or fit under a low ceiling. By rotating the horn, you can keep the sound focused on the audience and away from the floor or ceiling, which prevents “Muddy Reflections” (the blurry, echoing sound caused by audio bouncing off hard surfaces).
This level of precision ensures that every person in the room—from the front row to the back corner—hears the exact same clear audio. To create a truly professional experience, many venue owners pair this precise audio control with advanced stage event lighting to ensure the visual atmosphere matches the sonic power of the ZSOUND system.
Touring-Grade Birch Plywood Construction
A professional speaker is an investment that must withstand the rigors of the road and constant use. The R15P-III cabinet is constructed from high-density 15mm “Birch Plywood” (a premium wood material preferred by audio engineers for its strength and natural vibration-damping properties). Unlike plastic cabinets that can vibrate and add a “fake” sound to the music, birch plywood keeps the output pure and resonant.
The exterior is finished with a “Water-Based Painting,” a rugged and eco-friendly coating that protects the cabinet from scratches and humidity. For installation flexibility, the R15P-III includes 13 separate M8 “Rigging” points (heavy-duty threaded holes used for safely hanging the speaker from a ceiling or truss). It also features a “Pole Mount” socket, making it compatible with standard speaker tripods for mobile setups. Whether used as a primary “Front-of-House” system or as a high-performance stage side-fill, the ZSOUND R15P-III is the Powerful 15-Inch Passive Speaker built for those who demand uncompromising power and reliability.
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