Pure Resonance Audio PRA-P115

Pure Resonance Audio P115 15-inch 2-Way 350W Passive Loudspeaker User Manual

Model: PRA-P115

Introduction

The Pure Resonance Audio P115 is a versatile 15-inch 2-way passive loudspeaker designed for professional audio applications. This speaker delivers robust low and mid frequencies through its 15-inch woofer with a 2.5-inch voice coil, and crisp high frequencies via a 1-inch compression driver with a 1.35-inch voice coil. It is suitable for medium to large venues such as gymnasiums, churches, schools, and auditoriums, offering excellent vocal intelligibility and wide 90° x 60° coverage. The lightweight, durable enclosure ensures long-term reliability, with integrated handles, pole mounting, rigging points, and floor monitor capability providing flexible installation options.

Pure Resonance Audio P115 15-inch Passive Loudspeaker

Figure 1: Front view of the Pure Resonance Audio P115 Passive Loudspeaker.

Features

  • Robust Construction: Durable, lightweight plastic enclosure designed for long-term reliability.
  • High-Quality Drivers: Features a 15-inch LF driver with a 2.5-inch voice coil and a 1-inch HF compression driver with a 1.35-inch voice coil.
  • Power Handling: 350W continuous power, 1200W peak power.
  • Wide Coverage: 90° x 60° dispersion pattern for broad sound distribution.
  • Flexible Mounting Options: Integrated handles for portability, pole mounting socket, M8 rigging points for suspension, and floor monitor capability with a 40° tilt angle.
  • Simple Connection: Equipped with two Speakon NL4 connections for secure and reliable audio input.

What's in the Box

  • One (1) Pure Resonance Audio P115 Passive Loudspeaker Unit

Note: As a passive loudspeaker, the P115 requires an external amplifier and speaker cables (Speakon NL4 compatible) which are sold separately.

Setup & Installation

The P115 loudspeaker offers multiple installation methods to suit various venue requirements. Always ensure secure mounting and proper cable management to prevent accidents and ensure optimal performance.

1. Pole Mounting

The P115 features a standard pole mount socket on its base, allowing it to be mounted on a speaker pole or tripod stand. This method is ideal for temporary setups or when elevating the speaker for wider audience coverage.

Pure Resonance Audio P115 speaker showing pole mount socket

Figure 2: The P115 speaker, illustrating the pole mount socket on its base for stand mounting. This socket also allows for 0° to 7.5° tilt angle adjustment.

  • Insert a compatible speaker pole into the socket.
  • Ensure the pole is stable and capable of supporting the speaker's weight.
  • Adjust the tilt angle if necessary using the integrated adjustment mechanism.

2. Suspension (Flying)

For permanent installations in venues like gymnasiums or auditoriums, the P115 can be suspended using its M8 rigging points. There are three M8 suspension points: two on the top and one on the rear, allowing for precise angling.

Pure Resonance Audio P115 speaker showing M8 suspension points

Figure 3: The P115 speaker, indicating the M8 suspension points for flying the speaker.

  • Consult with a qualified professional for safe and proper suspension installation.
  • Use appropriate M8 eye bolts and rigging hardware rated for the speaker's weight.
  • Ensure the suspension points are securely fastened and the speaker is balanced.

3. Floor Monitor Capability

The P115's cabinet design allows it to be placed on its side, functioning as a floor monitor. This is useful for stage applications where performers need to hear themselves.

Pure Resonance Audio P115 speaker positioned as a floor monitor

Figure 4: The P115 positioned as a floor monitor, offering a 40° tilt angle for optimal sound projection towards performers.

  • Place the speaker on a stable, flat surface in the desired monitor position.
  • The cabinet's angled design provides a 40° tilt for effective sound projection.

4. Connections

Connect the P115 to a suitable external amplifier using Speakon NL4 cables. The speaker features two Speakon NL4 connections for input and daisy-chaining to another passive speaker.

Pure Resonance Audio P115 rear panel showing Speakon NL4 connections

Figure 5: Rear panel of the P115, highlighting the two Speakon NL4 connections for audio input and output.

  • Ensure the amplifier's power output matches the speaker's power handling capabilities (350W continuous, 1200W peak) and impedance (8Ω).
  • Use high-quality Speakon NL4 cables for reliable connection.
  • Connect one end of the Speakon cable to the amplifier's output and the other end to one of the P115's Speakon inputs.
  • For daisy-chaining, connect a second Speakon cable from the P115's other Speakon output to another passive speaker.

Operating Instructions

Once the P115 loudspeaker is properly installed and connected to an amplifier, follow these general operating guidelines:

  1. Power On Sequence: Always power on your audio mixer and other source equipment first, then your amplifier.
  2. Volume Levels: Start with the amplifier's volume control at its lowest setting. Gradually increase the volume to the desired listening level.
  3. Monitoring Sound: Listen for any distortion or clipping. If you hear distortion, reduce the volume immediately to prevent damage to the speaker or amplifier.
  4. Power Off Sequence: When finished, turn off the amplifier first, then your mixer and other source equipment.
  5. Optimal Placement: Experiment with speaker placement to achieve the best sound coverage and clarity for your specific environment.

Maintenance

Regular maintenance helps ensure the longevity and optimal performance of your P115 loudspeaker.

  • Cleaning: Use a soft, dry cloth to clean the exterior of the speaker. Avoid using abrasive cleaners or solvents. For the grille, a soft brush or vacuum cleaner with a brush attachment can remove dust.
  • Inspection: Periodically inspect speaker cables for any signs of wear, cuts, or damage. Replace damaged cables immediately.
  • Connections: Ensure all Speakon connections are secure and free from corrosion.
  • Storage: If storing the speaker for an extended period, keep it in a dry, temperature-controlled environment, ideally in its original packaging or a protective cover.
  • Environmental Conditions: Avoid exposing the speaker to extreme temperatures, high humidity, or direct moisture.

Troubleshooting

If you encounter issues with your P115 loudspeaker, refer to the following common troubleshooting steps:

  • No Sound:
    • Check all cable connections between the amplifier and speaker.
    • Ensure the amplifier is powered on and functioning correctly.
    • Verify the audio source is active and sending a signal.
    • Confirm the amplifier's volume is turned up.
  • Distorted Sound:
    • Reduce the volume level on the amplifier and/or audio source.
    • Check if the amplifier's power output is too high for the speaker.
    • Inspect speaker cables for damage or improper connection.
    • Ensure the impedance of the speaker matches the amplifier's output impedance.
  • Intermittent Sound:
    • Check for loose cable connections.
    • Inspect cables for internal breaks or damage.
    • Ensure the amplifier is not overheating.
  • Poor Bass Response:
    • Verify the speaker is correctly phased (if applicable to your amplifier setup).
    • Check for proper placement; speakers placed too far from walls or corners may have reduced bass.
    • Ensure the audio source is providing a full-range signal.

If the issue persists after performing these checks, contact Pure Resonance Audio customer support for further assistance.

Specifications

Model NumberPRA-P115
Speaker Type15" 2-Way Passive Loudspeaker
LF Driver15" Woofer with 2.5" Voice Coil
HF Driver1" Compression Driver with 1.35" Voice Coil
Continuous Power350W
Peak Power1200W
Impedance
Frequency Response53Hz - 20kHz
Sensitivity (1W/1M)97dB
Max SPL128dB
Dispersion90° x 60°
Enclosure MaterialLightweight, Durable Plastic
Connections(2) Speakon NL4
Mounting OptionsPole Mount, (3) M8 Suspension Points, Floor Monitor (40° tilt)
Integrated HandlesYes (3 handles for balance and comfort)
UPC810093052547

Warranty

The Pure Resonance Audio P115 Passive Loudspeaker comes with a 5-Year Extended Warranty. For detailed terms and conditions, please refer to the warranty documentation included with your purchase or visit the Pure Resonance Audio official website.

Support

For technical assistance, product inquiries, or warranty claims, please contact Pure Resonance Audio customer support:

Please have your model number (PRA-P115) and purchase information ready when contacting support.

Product Videos

Watch these official product videos for a visual overview and detailed features of the Pure Resonance Audio P115 Passive Loudspeaker.

Overview of Pure Resonance Audio P115 15" Passive PA Speaker

This video provides a comprehensive overview of the Pure Resonance Audio P115 15-inch Passive PA Speaker, detailing its features, applications, and mounting options. Duration: 2:52.

Pure Resonance Audio P115 15" Passive Loudspeaker (Preview)

A concise preview video showcasing the Pure Resonance Audio P115 15-inch Passive Loudspeaker and its key attributes. Duration: 0:59.

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