PreSonus Eris Sub 8 Compact Studio Subwoofer User Manual

1. Introduction

Thank you for choosing the PreSonus Eris Sub 8 Compact Studio Subwoofer. This manual provides essential information for the proper setup, operation, and maintenance of your new subwoofer. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.

2. Safety Information

Please observe the following safety precautions to prevent damage to the unit or injury to yourself:

• Power Source: Connect the unit only to the type of power supply indicated on the unit.
• Ventilation: Ensure proper ventilation. Do not block any ventilation openings.
• Water and Moisture: Do not expose this apparatus to rain or moisture. Do not use near water.
• Heat: Do not place near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Cleaning: Clean only with a dry cloth.
• Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
• Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

3. Product Overview and Features

The PreSonus Eris Sub 8 is a compact studio subwoofer designed to complement your full-range monitors, providing extended low-frequency response for accurate mixing and an immersive listening experience.

Key Features:

• 8-inch Woofer: Features an 8-inch, front-firing, paper-composite transducer with a high-elasticity rubber surround for smooth low-frequency transients.
• Powerful Amplification: Equipped with a 100W Class AB amplifier (50W RMS) for robust output with minimal distortion.
• Flexible Connectivity: Includes left and right, balanced ¼-inch TRS and unbalanced RCA main inputs and pass-through outputs for easy connection to satellite speakers.
• Adjustable Lowpass Filter: Continuously variable lowpass filter from 50 Hz to 130 Hz for seamless integration with your main monitors.
• Defeatable Highpass Filter: A switchable 80 Hz highpass filter removes sub-80Hz frequency content from the full-range signal sent to the main speakers, optimizing their performance.
• Input Gain Control: Provides -30 dB to +6 dB of continuously variable output.
• Polarity Invert Switch: Corrects phase-cancellation issues between the subwoofer and main speakers.
• Software Bundle: Comes with Studio One Prime and the Studio Magic plug-in suite, offering over $1000 USD worth of music production software.

Figure 3.1: Front view of the Eris Sub 8, showcasing its compact design and front-firing woofer.

Figure 3.2: Angled view of the Eris Sub 8, highlighting its sleek, studio-quality industrial design.

4. Setup

Proper setup is crucial for the optimal performance of your Eris Sub 8. Follow these steps to integrate the subwoofer into your audio system.

4.1. Unpacking

Carefully unpack your Eris Sub 8. The box should contain:

• (1) Eris Sub 8 powered subwoofer
• Power Cable
• Quick Start Guide

4.2. Placement

The placement of your subwoofer significantly impacts its sound. Generally, placing the subwoofer in a corner can enhance bass response, but experimentation is recommended to find the best position for your listening environment.

Figure 4.1: The Eris Sub 8 is compact enough for placement under a desk, making it ideal for near-field studio setups.

4.3. Connections

The Eris Sub 8 offers flexible input and output options. Refer to the rear panel diagram below for connection points.

Figure 4.2: Rear panel of the Eris Sub 8, detailing the input/output section and control knobs.

• Input: Connect your audio source (e.g., audio interface, mixer) to the Eris Sub 8's Left and Right TRS or RCA inputs.
• Output: Connect your main studio monitors to the Eris Sub 8's Left and Right TRS or RCA outputs. The audio signal will pass through the subwoofer to your monitors.
• Power: Connect the included power cable to the AC inlet and then to a suitable power outlet.

5. Operating the Eris Sub 8

Once connected, you can fine-tune the Eris Sub 8 to integrate seamlessly with your main monitors and listening environment.

5.1. Controls

• Gain: Adjusts the input sensitivity of the subwoofer. Start with a lower setting and gradually increase until the subwoofer's output balances with your main monitors.
• Low Pass Filter: This knob sets the upper frequency limit for the subwoofer. Adjust this to match the low-frequency cutoff of your main monitors. A common starting point is 80 Hz.
• High Pass Filter (80 Hz): This switch, when engaged, removes frequencies below 80 Hz from the signal sent to your main monitors. This allows your main monitors to focus on mid-range and high frequencies, improving overall system clarity.
• Polarity Invert (0°/180°): This switch inverts the phase of the subwoofer's output. Experiment with both settings to find the one that provides the most coherent and impactful bass response in your listening position.

5.2. Software Integration

Your Eris Sub 8 includes licenses for Studio One Prime and the Studio Magic plug-in suite. These powerful tools can enhance your music production workflow. Refer to the included Quick Start Guide for instructions on how to register and download this software.

Figure 5.1: The Eris Sub 8 integrates seamlessly into a studio setup, complementing software like Studio One.

6. Maintenance

To ensure the longevity and optimal performance of your Eris Sub 8, follow these simple maintenance guidelines:

• Cleaning: Use a soft, dry, lint-free cloth to clean the exterior of the subwoofer. Avoid using abrasive cleaners, waxes, or solvents.
• Ventilation: Periodically check that the ventilation openings are clear of dust and debris.
• Storage: If storing the unit for an extended period, disconnect it from power and store it in a cool, dry place.

7. Troubleshooting

If you encounter issues with your Eris Sub 8, try the following troubleshooting steps. For more detailed assistance, refer to the official PreSonus Troubleshooting Guide available online.

Common Issues and Solutions:

• No Sound:
  • Ensure the power cable is securely connected and the unit is powered on.
  • Check all audio cables for secure connections and proper routing.
  • Verify that the input gain is not set too low.
• Distorted Sound:
  • Reduce the input gain on the subwoofer or the output level from your audio source.
  • Ensure the Low Pass Filter is set appropriately and not causing excessive overlap with your main monitors.
• Weak Bass / Phase Issues:
  • Experiment with the Polarity Invert switch (0°/180°).
  • Adjust the Low Pass Filter to find the optimal crossover point.
  • Try repositioning the subwoofer within your room.

8. Specifications

Detailed technical specifications for the PreSonus Eris Sub 8 Compact Studio Subwoofer:

Figure 8.1: Physical dimensions of the Eris Sub 8.

9. Warranty and Support

The PreSonus Eris Sub 8 comes with a Limited Warranty. For specific details regarding warranty coverage, please refer to the warranty information provided with your product or visit the official PreSonus website.

For technical support, product registration, or to access additional resources, please visit the PreSonus support page or contact their customer service. Keeping your product registered can help facilitate support and warranty claims.