Hk Audio SONAR-115-SUB-D 1500 Watt 15" Powered Subwoofer User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your Hk Audio SONAR-115-SUB-D 1500 Watt 15" Powered Subwoofer. Please read these instructions thoroughly before using the product and retain them for future reference.

The SONAR 115 Sub D is a powerful, state-of-the-art powered subwoofer designed to extend the bass response of SONAR full-range models and other speaker types. It features a 15" woofer, a 1500-watt power amplifier, and HK Audio acoustic engineering for powerful bass. Control is managed by a 24-bit DSP with an illuminated LCD screen, allowing adjustment of crossover frequency, polarity, and delay. It also includes an efficient Cardioid feature with pre-configured CARDIOID FRONT and CARDIOID REAR presets to minimize problematic rear bass radiation.

2. Safety Instructions

Always observe the following safety precautions to prevent electric shock, injury, or damage to the equipment:

Do not expose the subwoofer to rain or moisture.
Do not block ventilation openings.
Ensure proper grounding for all electrical connections.
Only use attachments/accessories specified by the manufacturer.
Disconnect the power cord during lightning storms or when unused for long periods.
Refer all servicing to qualified service personnel.

3. Package Contents

Upon unpacking, please verify that the following items are included:

Hk Audio SONAR-115-SUB-D Powered Subwoofer
Power Cable (not explicitly listed but implied for a powered device)
User Manual (this document)

If any items are missing or damaged, please contact your dealer immediately.

4. Product Overview

The SONAR-115-SUB-D is designed for robust performance and ease of use. Familiarize yourself with its components and controls.

Hk Audio SONAR-115-SUB-D Powered Subwoofer front and side view

Figure 4.1: Front and side view of the Hk Audio SONAR-115-SUB-D Powered Subwoofer, showing the protective grille and integrated side handle.

4.1 Control Panel and Connections

The rear panel houses all essential controls and input/output connections.

Figure 4.2: Detailed view of the SONAR-115-SUB-D control panel, featuring the DSP display, volume knob, and input/thru connections.

24-bit Digital Signal Processor (DSP) Display: An illuminated LCD screen for navigating and adjusting settings.
Volume Knob: Used to adjust the output level and push to edit DSP parameters.
Input (L/R): XLR/TRS combo jacks for audio input.
Thru (L/R): XLR output jacks for passing the input signal to other speakers.

4.2 Physical Features

Carrying Handles: Two MultiGrip handles for easy transport.
Front Grille: Steel front grille with anticorrosive coating and backed acoustic foam for protection.
Pole Mount: Integrated pole mount on the top surface for satellite speakers.

Hk Audio SONAR-115-SUB-D side view with handle

Figure 4.3: Side view of the SONAR-115-SUB-D, highlighting the ergonomic MultiGrip carrying handle.

Hk Audio SONAR-115-SUB-D top view with pole mount

Figure 4.4: Top view of the SONAR-115-SUB-D, showing the integrated pole mount for satellite speakers.

5. Setup

5.1 Placement

Optimal placement of the subwoofer is crucial for sound quality. Consider the following:

Room Acoustics: Bass response is heavily influenced by room boundaries. Experiment with placement to find the best balance.
Proximity to Walls: Placing the subwoofer closer to walls or corners can increase bass output, but may also lead to muddiness.
Cardioid Setup: For advanced setups, consider using multiple subwoofers in a cardioid configuration to reduce rearward sound radiation. Refer to the "Operating" section for DSP settings.

5.2 Connections

Power Connection: Connect the supplied power cable to the subwoofer's power inlet and then to a grounded AC power outlet.
Audio Input: Connect your audio source (e.g., mixer, full-range speaker output) to the Input (L/R) XLR/TRS combo jacks on the subwoofer's control panel.
Audio Thru (Optional): If you are connecting full-range speakers, use the Thru (L/R) XLR outputs to send the signal to your main speakers. The signal passed through is unfiltered.

Ensure all connections are secure before powering on the unit.

6. Operating Instructions

The SONAR-115-SUB-D features a 24-bit DSP for precise control over its audio characteristics. Use the illuminated LCD screen and the Volume knob to navigate and adjust settings.

6.1 DSP Functions

Press the Volume knob to enter the DSP menu. Rotate the knob to scroll through options and press again to select or confirm.

X-Over (Crossover Frequency): Adjusts the frequency point where the subwoofer handles bass frequencies, and frequencies above this point are typically sent to full-range speakers. Common settings include 80Hz, 100Hz, 120Hz.
Polarity: Inverts the phase of the subwoofer's output. This can be useful for optimizing bass response when combining the subwoofer with other speakers, especially if they are out of phase. Options typically include 0° (Normal) and 180° (Inverted).
Delay: Allows for time alignment between the subwoofer and full-range speakers. Adjust this setting to ensure the sound from all speakers arrives at the listener's position simultaneously.
Bass Boost: Engages a low-frequency enhancement for a more pronounced bass sound.
Filter Presets:
- SONAR: Optimized preset for use with Hk Audio SONAR mid/high units.
- Cardioid Front: Preset for configuring the subwoofer in a cardioid array, where the front-facing subwoofer is set to this mode.
- Cardioid Rear: Preset for configuring the subwoofer in a cardioid array, where the rear-facing subwoofer is set to this mode to cancel rearward bass radiation.
Front LED: Controls the behavior of the front panel LED indicator.
Display Dim: Adjusts the brightness of the LCD display.
Reset: Resets all DSP settings to factory defaults.

6.2 Volume Adjustment

Rotate the Volume knob to adjust the overall output level of the subwoofer. Monitor your sound system to ensure levels are balanced and distortion-free.

7. Maintenance

Proper maintenance ensures the longevity and optimal performance of your subwoofer.

Cleaning: Use a soft, dry cloth to clean the exterior surfaces. Do not use abrasive cleaners, solvents, or waxes.
Grille Care: The steel front grille with acoustic foam can be gently cleaned with a soft brush or vacuum cleaner to remove dust.
Storage: If storing the unit for an extended period, ensure it is in a dry, temperature-controlled environment, protected from dust and extreme temperatures.
Inspection: Periodically check the power cable and audio cables for any signs of damage.

8. Troubleshooting

If you encounter issues with your SONAR-115-SUB-D, refer to the following common problems and solutions:

Problem	Possible Cause	Solution
No sound output	Power not connected or switched on. Input cables incorrectly connected or faulty. Volume too low. DSP settings incorrect (e.g., X-Over too high, Mute engaged).	Ensure power cable is securely connected and unit is switched on. Check all audio cables and connections. Test with different cables if necessary. Increase the Volume knob. Check DSP settings on the LCD screen.
Distorted sound	Input signal too high. Subwoofer volume too high. Faulty cables.	Reduce the input signal level from your source. Decrease the subwoofer's Volume knob. Replace audio cables.
Weak or muddy bass	Incorrect Polarity setting. Subwoofer placement. X-Over frequency too low.	Adjust Polarity (0° or 180°) to find the best phase alignment. Experiment with subwoofer placement in the room. Increase the X-Over frequency.

If the problem persists after trying these solutions, please contact customer support.

9. Specifications

Detailed technical specifications for the Hk Audio SONAR-115-SUB-D Powered Subwoofer:

Model Name	Sonar 115 Sub D
Speaker Type	Subwoofer
Subwoofer Diameter	15 Inches
Woofer Diameter	15 Inches
Speaker Maximum Output Power	1500 Watts
Audio Driver Type	Dynamic Driver
Connectivity Technology	Wi-Fi (Note: This likely refers to app control capability, not audio streaming)
Control Method	App, On-board DSP
Power Source	Corded Electric
Product Dimensions (D x W x H)	24.3"D x 16.9"W x 24.1"H
Item Weight	73.9 pounds
Manufacturer	HK Audio
Warranty Type	Limited

Hk Audio SONAR-115-SUB-D dimensions diagram

Figure 9.1: Dimensional diagram of the SONAR-115-SUB-D, showing its depth, width, and height.

10. Warranty and Support

10.1 Warranty Information

The Hk Audio SONAR-115-SUB-D is covered by a Limited Warranty. Please refer to the warranty card included with your product or visit the official Hk Audio website for detailed terms and conditions regarding coverage, duration, and claims procedures.

Retain your proof of purchase for warranty service.

10.2 Customer Support

For technical assistance, service, or spare parts, please contact your authorized Hk Audio dealer or visit the official Hk Audio support website. When contacting support, please have your product model number (SONAR-115-SUB-D) and serial number ready.

Official Hk Audio Website: www.hkaudio.com

	HK Audio SONAR Xi Series Full-Range Cabinets User Manual User manual for HK Audio SONAR Xi series active full-range speaker cabinets (110 Xi, 112 Xi, 115 Xi). Covers safety, features, operation, connectivity, DSP, Bluetooth, and technical specifications.
	HK Audio POLAR MK2 and SONAR 115 Sub D: Sub Extension Guide Enhance your HK Audio POLAR 10 MK2 and POLAR 12 MK2 sound system's bass performance with the SONAR 115 Sub D. This guide provides setup instructions and recommended settings for one or two subwoofers.
	HK Audio POLAR 10/12 MK2 Active Column Speaker System Manual Comprehensive user manual for the HK Audio POLAR 10/12 MK2 active column speaker system, covering setup, connections, controls, DSP settings, technical specifications, and accessories.
	HK Audio LINEAR 5 MKII Series User Manual Comprehensive user manual for the HK Audio LINEAR 5 MKII series of professional loudspeakers and subwoofers, covering safety, connections, setup, and technical specifications.
	HK Audio DSP Control Software User Guide Learn how to use HK Audio's DSP Control Software for managing presets, groups, delay, equalizer, and firmware updates. This guide provides step-by-step instructions for professional audio systems.
	HK Audio LINEAR 5 MK II 308 LTA & 118 Sub HPA User Manual Comprehensive user manual for the HK Audio LINEAR 5 MK II series, detailing the 308 LTA loudspeaker and 118 Sub HPA subwoofer. Covers safety instructions, connections, controls, setup, alignment, system configurations, technical specifications, and optional accessories for professional audio applications.