Nobsound BSA-600 Bass Shaker Amplifier User Manual

1. Introduction

The Nobsound BSA-600 is a high-performance power amplifier specifically designed to drive bass shakers, subwoofers, and low-frequency transducers. It transforms your audio experience by allowing you to physically feel low-frequency sounds, adding an immersive and tactile dimension to movies, gaming, and music. This manual provides detailed instructions for the proper setup, operation, and maintenance of your BSA-600 amplifier.

2. Product Features

The BSA-600 amplifier offers a range of features designed for optimal performance and user convenience:

• Enhanced Sensory Experience: Specifically engineered for bass shakers and subwoofers, providing powerful and controlled low-frequency signals for an immersive tactile experience in home theaters and gaming setups.
• Strong Output Power: Utilizes a TPA3255 chip, supporting stereo output of 115W RMS at 4 ohms (per channel) or mono bridged output of 230W RMS at 2 ohms. Capable of driving up to 4 bass shakers in mono mode or up to 8 in stereo mode.
• Easy Remote Control & Auto Standby: Includes a wired remote control (5m/16.4ft cable) for convenient volume adjustment, mute, and power on/off, ideal for installations where the amplifier is out of reach. Supports manual, auto, or triggered on/off modes for seamless system integration.
• Flexible Functionality & Versatile Installation: Features 50-200Hz cutoff frequency and balance adjustment knobs for precise audio tuning. Supplied with mounting brackets for custom installation options, such as under furniture or in equipment racks.
• Multi-zone Use & User-Friendly Design: Equipped with line outputs for daisy-chaining multiple units for larger multi-room installations. An external USB 5V/1A output is provided to power other devices, reducing cable clutter.

3. Package Contents

Please check the package carefully to ensure all items are present:

• 1 × BSA-600 Amplifier
• 1 × Power Cord
• 1 × Wired Volume Remote (5m / 16.4 ft cable)
• 2 × Double-sided Adhesive
• 1 Set × Mounting Brackets
• 1 × User Manual

4. Controls and Indicators

4.1 Front Panel

• Mono/Stereo Select Switch: Toggles between mono and stereo output modes.
• AUTO/ON Switch: Selects auto standby mode or always-on mode.
• Power Indicator: Illuminates when the unit is powered on.
• REMOTE Port: Connects the wired remote control.
• Display Screen: Shows the current volume level.
• VOL Knob (Function Knob):
  • Short press: Turn on / Mute
  • Long press: Turn off
  • Rotate: Adjust the volume
• FREQ Knob (Cutoff Frequency Adjustment Knob): Adjusts the low-pass filter cutoff frequency (50-200Hz).
• BAL Knob (Balance Adjustment Knob): Adjusts the balance between left and right channels in stereo mode.

4.2 Rear Panel

• RCA Input (INPUT): Connects to audio sources (e.g., TV, PC, phone, tablet).
• RCA Output (OUTPUT): For daisy-chaining multiple units or connecting to other amplifiers. Note: RCA output is in parallel with input and provides no amplification.
• 5V/1A USB Output: Provides power for external devices.
• Speaker Output (SPK OUT): Banana speaker jacks for connecting bass shakers or passive subwoofers.
• Mono Output (MONO): Dedicated mono output for bass shakers or passive subwoofers.
• AC 100-240V IN: Power input.
• Power Button: Main power switch for the unit.

5. Setup and Connections

Follow these steps to set up your Nobsound BSA-600 amplifier:

5.1 Power Connection

1. Ensure the main power button on the rear panel is in the OFF position.
2. Connect the provided power cord to the "AC 100-240V IN" port on the rear panel and then to a suitable wall outlet.

5.2 Audio Input Connection

1. Connect your audio source (e.g., TV, PC, phone, tablet) to the "RCA Input" jacks on the rear panel using appropriate RCA cables.
2. The RCA input can accept either a full-frequency signal or a low-frequency signal. The type of signal passed through to the RCA output will depend on the input signal.

5.3 Speaker/Bass Shaker Output Connection

Connect your bass shakers or passive subwoofers to the "Speaker Output (SPK OUT)" or "Mono Output (MONO)" banana jacks. Ensure correct polarity (+ to + and - to -).

Important: The banana speaker jacks only output low frequency and are designed to drive subwoofers or bass shakers. They cannot power full-frequency speakers.

Refer to Figure 5 for detailed wiring configurations:

• Stereo Installation:
  • 2 Bass Shakers (4Ω-8Ω): Connect one shaker to R (right) and one to L (left) speaker outputs.
  • 4 Bass Shakers (8Ω-16Ω): Connect two shakers in series to R, and two shakers in series to L.
  • 8 Bass Shakers (4Ω-8Ω, series/parallel): Connect four shakers in a series-parallel configuration to R, and four shakers in a series-parallel configuration to L.
• (Bridged) Mono Installation:
  • 1 Bass Shaker (2Ω-8Ω): Connect to the MONO output.
  • 2 Bass Shakers (2Ω-4Ω, series): Connect two shakers in series to the MONO output.
  • 4 Bass Shakers (2Ω-4Ω, series/parallel): Connect four shakers in a series-parallel configuration to the MONO output.

5.4 Wired Remote Control Connection

1. Connect the wired remote control cable to the "REMOTE" port on the front panel.
2. Place the remote in a convenient location for easy access.

5.5 Optional Connections

• RCA Output: If daisy-chaining to another amplifier or unit, connect from the "RCA Output" to the input of the next device. Remember, this output is unamplified.
• 5V/1A USB Output: Use this port to power small USB-powered devices, helping to manage cables.

5.6 Installation Options

The BSA-600 includes mounting brackets for flexible installation. You can mount the amplifier under a couch, gaming chair, or in an equipment rack to save space and integrate it seamlessly into your setup.

6. Operation

6.1 Powering On/Off

1. After connecting all cables, flip the main "Power Button" on the rear panel to ON.
2. If the power indicator on the front panel is flashing, short press the "VOL" knob to turn the unit on. The power indicator will become steady, and the display screen will show the volume value.
3. To turn off the amplifier, long press the "VOL" knob.

6.2 Volume Adjustment

• Rotate the "VOL" knob on the front panel to adjust the output volume.
• Alternatively, use the wired remote control for volume adjustment.
• Short press the "VOL" knob or the remote control button to mute/unmute the output.

6.3 Mode Selection (Mono/Stereo)

• Use the "Mono/Stereo Select Switch" on the front panel to choose between mono and stereo output modes, depending on your speaker/shaker configuration.

6.4 Auto Standby Function

• The "AUTO/ON" switch allows you to enable or disable the auto standby feature.
• In AUTO mode, the amplifier will enter standby after 10 minutes if no signal input is detected.
• The lowest drive level to power on from standby is ≥15mV at 1KHz.

6.5 Frequency and Balance Adjustment

• FREQ Knob: Rotate this knob to adjust the cutoff frequency of the low-pass filter from 50Hz to 200Hz. This allows you to fine-tune the bass response.
• BAL Knob: In stereo mode, use this knob to adjust the balance between the left and right channels.

7. Specifications

8. Troubleshooting

This section addresses common issues you might encounter with your BSA-600 amplifier.

• Power Indicator Flashing: If the power indicator is flashing after you press the main power switch on the rear panel, it means the unit is in a soft-off state. Short press the "VOL" knob on the front panel to fully turn it on. The indicator will become steady, and the display will show the volume.
• No Sound Output:
  • Check all audio input and speaker output connections for secure fit and correct polarity.
  • Ensure the amplifier is powered on and not in mute mode (short press VOL knob).
  • Verify the audio source is playing and its volume is turned up.
  • Confirm the correct Mono/Stereo mode is selected for your setup.
  • Ensure the connected speakers/shakers are low-frequency transducers and not full-range speakers.
• Overheat Protection (Display "OL"): If the display shows "OL", the amplifier has entered overheat protection mode. This is a safety feature. The unit will automatically recover after approximately 10 seconds once the temperature returns to a safe level. Ensure adequate ventilation around the amplifier.
• Overcurrent Protection (Display "OC"): If the display shows "OC", the amplifier has entered overcurrent protection mode. This indicates an issue with the speaker load, possibly a short circuit or impedance mismatch. The unit will automatically recover after approximately 10 seconds. Check your speaker wiring for shorts and ensure the total impedance of your connected bass shakers/subwoofers is within the recommended 2-8Ω range.
• Auto Standby Not Working: Ensure the "AUTO/ON" switch is set to "AUTO". If there's a continuous low-level signal, the amplifier might not enter standby.

9. User Tips

• RCA Input/Output: The RCA input can accept either a full-frequency signal or a low-frequency signal. The RCA output mirrors the input signal and does not provide any amplification. If you need a filtered low-frequency signal for the RCA output, ensure your source provides it or use the amplifier's speaker outputs.
• Speaker Type: Remember that the banana speaker jacks are exclusively for low-frequency transducers like bass shakers or passive subwoofers. Connecting full-range speakers will not yield proper audio and may cause damage.
• Cable Management: Utilize the external USB 5V/1A output to power small USB devices, helping to keep your setup tidy and reduce the number of power adapters needed.
• Optimal Placement: Experiment with the placement of your bass shakers and the amplifier's cutoff frequency (FREQ knob) to find the most impactful and comfortable tactile experience for your specific seating and room acoustics.

10. Warranty and Support

The Nobsound BSA-600 amplifier comes with a 2-year warranty, ensuring peace of mind regarding product quality and performance.

For technical support, service inquiries, or further assistance, please contact your retailer or the manufacturer directly. Please have your model number (BSA-600) and purchase information ready when contacting support.