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JBL Basspro Nano - User Manual

JBL Basspro Nano
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Basspro Nano
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Owner’s Manual
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Summary

About the Manual

Whats in the Box

Mounting the BassPro Nano

Setting Controls

Gain Control Adjustment

Adjusts input signal level to match source unit for optimal bass output, listening for distortion.

Phase Setting

Selects the optimal phase setting for the most clean bass output from the woofer.

Low-Pass Filter Adjustment

Filters out high-frequency information, ensuring only low frequencies are played by the woofer.

Bass Boost Adjustment

Enhances bass frequencies at 50Hz, allowing customization to user preference.

Connecting the Remote Bass Control Module

Specifications

Troubleshooting Common Issues

No Audio with Power Indicator Off

Checks power and ground connections when no audio is present and the power indicator is off.

Protect Indicator Flashing

Diagnoses DC voltage on amplifier output or low BATT+ voltage, suggesting service or charging system check.

Fuse Blowing

Addresses amplifier fuse blowing due to incorrect wiring or a short circuit.

Distorted Audio or Lack of Dynamics

Relates distorted audio to GAIN settings or wiring, and lack of dynamics to input polarity/phase.

Engine Noise

Solves engine noise by checking ground, adjusting GAIN, and rerouting cables away from power wires.

Summary

About the Manual

Whats in the Box

Mounting the BassPro Nano

Setting Controls

Gain Control Adjustment

Adjusts input signal level to match source unit for optimal bass output, listening for distortion.

Phase Setting

Selects the optimal phase setting for the most clean bass output from the woofer.

Low-Pass Filter Adjustment

Filters out high-frequency information, ensuring only low frequencies are played by the woofer.

Bass Boost Adjustment

Enhances bass frequencies at 50Hz, allowing customization to user preference.

Connecting the Remote Bass Control Module

Specifications

Troubleshooting Common Issues

No Audio with Power Indicator Off

Checks power and ground connections when no audio is present and the power indicator is off.

Protect Indicator Flashing

Diagnoses DC voltage on amplifier output or low BATT+ voltage, suggesting service or charging system check.

Fuse Blowing

Addresses amplifier fuse blowing due to incorrect wiring or a short circuit.

Distorted Audio or Lack of Dynamics

Relates distorted audio to GAIN settings or wiring, and lack of dynamics to input polarity/phase.

Engine Noise

Solves engine noise by checking ground, adjusting GAIN, and rerouting cables away from power wires.

Overview

The JBL Basspro Nano is a compact, self-contained powered subwoofer designed to enhance the bass output of a vehicle's audio system. It integrates a subwoofer and amplifier into a single unit, making it a convenient solution for adding powerful low-frequency sound without requiring separate components. The device is engineered for easy installation, particularly in space-constrained environments like under a passenger seat.

Function Description

The primary function of the Basspro Nano is to reproduce low-frequency audio (bass) that standard car speakers often struggle to deliver effectively. It receives audio signals from a car stereo (either line-level or speaker-level) and amplifies them to drive its internal subwoofer, producing deep and impactful bass. The integrated amplifier is specifically matched to the subwoofer, ensuring optimal performance and efficiency.

The Basspro Nano features several adjustable controls that allow users to fine-tune the bass output to their preferences and to integrate seamlessly with the existing audio system. These controls include:

  • GAIN: This control adjusts the input sensitivity of the amplifier, matching it to the output level of the car stereo. Proper gain setting is crucial for maximizing dynamic range and preventing distortion.
  • LOW-PASS FILTER (LPF): The LPF is a variable electronic crossover that allows only frequencies below a certain point to pass through to the subwoofer. This ensures that the Basspro Nano only reproduces bass frequencies, preventing it from playing vocals or other higher-frequency sounds that should be handled by the main speakers.
  • BASS BOOST: This control allows users to increase the output level of a specific bass frequency, typically around 50Hz, to add more punch and impact to the bass.
  • PHASE: The phase control (0° or 180°) helps to align the subwoofer's output with the main speakers. Adjusting the phase can prevent cancellation or reinforcement of bass frequencies, resulting in a more coherent and impactful sound.
  • AUTO TURN ON: This feature simplifies installation by allowing the Basspro Nano to automatically turn on when it detects an audio signal, eliminating the need for a separate remote turn-on wire when using speaker-level inputs. When connecting to an aftermarket stereo with a remote turn-on wire, this feature should be set to OFF.

The device supports two types of audio inputs:

  • Line-level inputs: These are typically RCA connections used with aftermarket stereos that have dedicated pre-amp outputs. This method generally provides the cleanest signal.
  • Speaker-level inputs: These inputs allow the Basspro Nano to connect directly to the vehicle's existing speaker wires, making it compatible with factory stereos or aftermarket units without RCA outputs.

A remote bass control module is also included, allowing users to conveniently adjust the bass level from the driver's seat without having to access the unit itself.

Usage Features

The Basspro Nano is designed for user-friendly operation and integration into various vehicle setups.

  • Installation Flexibility: Its compact size and robust construction make it ideal for installation in discreet locations, such as under a passenger seat, in the trunk, or behind a truck seat. The manual provides guidance on recommended mounting locations and precautions to avoid damaging vehicle components during installation.
  • Wiring Options: The device offers clear wiring diagrams for both power/ground and audio signals, catering to different stereo types (aftermarket with line-level outputs and remote turn-on, or factory/aftermarket with speaker-level outputs). This versatility ensures compatibility with a wide range of vehicles and head units.
  • Sound Customization: The adjustable GAIN, LOW-PASS FILTER, BASS BOOST, and PHASE controls empower users to tailor the bass response to their specific musical tastes and the acoustic characteristics of their vehicle. This allows for a personalized listening experience, whether the user prefers subtle enhancement or powerful, thumping bass.
  • Remote Bass Control: The included remote bass control module is a significant convenience feature. It allows for on-the-fly adjustments to the subwoofer's output level, enabling users to easily fine-tune the bass intensity for different music genres or listening preferences without distraction.
  • Troubleshooting Guidance: The manual includes a dedicated troubleshooting section to help users diagnose and resolve common issues such as no audio, power indicator problems, distorted audio, or engine noise. This self-help resource can save time and effort by guiding users through basic checks before seeking professional assistance.

Maintenance Features

While the Basspro Nano is designed for durability and minimal maintenance, some aspects contribute to its long-term reliability and user experience.

  • Protection Circuitry: The integrated amplifier includes protection circuitry to safeguard against common electrical issues such as overheating, DC voltage on the output, and short circuits. The "PROTECT" indicator on the unit illuminates when these conditions are detected, alerting the user to a potential problem and preventing damage to the amplifier or subwoofer.
  • Fuse Protection: The device incorporates a 15A fuse, which acts as a safety mechanism to protect the amplifier and the vehicle's electrical system from overcurrent conditions. The manual advises checking the fuse as part of troubleshooting, and replacing it if it blows, indicating a potential wiring issue or amplifier fault.
  • Ventilation Considerations: The manual emphasizes the importance of ensuring adequate ventilation around the Basspro Nano, especially when mounted under a seat. This helps prevent the amplifier from overheating, which can trigger the protection circuitry and interrupt audio playback. Proper airflow is crucial for maintaining optimal performance and longevity.
  • Secure Mounting: The instructions highlight the need to securely mount the Basspro Nano using the provided screws. This not only prevents the unit from moving around during driving but also ensures good electrical contact for ground connections (if applicable) and minimizes vibrations that could affect sound quality or component integrity over time.
  • Wiring Integrity: The manual implicitly promotes good maintenance through its emphasis on proper wiring. Ensuring all power, ground, and signal connections are secure and free from shorts or corrosion is fundamental to reliable operation and preventing issues like distorted audio or power problems. Regularly checking these connections can contribute to the device's longevity.
  • Professional Consultation: For complex installation or persistent troubleshooting issues, the manual recommends consulting an authorized JBL dealer. This ensures that the device receives proper attention from qualified professionals, preserving its warranty and ensuring correct operation.

JBL Basspro Nano Specifications

General IconGeneral
CertificationCE
On/off switchYes
Product colorBlack
Product typePre-loaded subwoofer
Subwoofer typeActive subwoofer
Subwoofer sensitivity12 dB
Subwoofer driver diameter152 mm
Subwoofer frequency range30 - 150 Hz
Subwoofer crossover frequencies50 - 150 Hz
Subwoofer driver diameter (imperial)6 \
Subwoofer driver diaphragm materialFiberglass
Weight and Dimensions IconWeight and Dimensions
Depth260 mm
Width195 mm
Height74.6 mm
Weight3530 g

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