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Need help?Do you have a question about the Jensen JAHD240BT and is the answer not in the manual?
Choose a flat, sturdy location for the amplifier and mount it securely using #8 stainless steel screws.
Drill a hole for the switch, route its cable to the amplifier, and connect power, ground, and speaker cables.
Press and hold the switch for 4 seconds to enter pairing mode. Connect via your Bluetooth device.
All playback and volume controls are managed by the connected Bluetooth device.
Bluetooth is a short-range protocol with an effective range of approximately 10 meters (30 feet).
Choose a flat, sturdy location for the amplifier and mount it securely using #8 stainless steel screws.
Drill a hole for the switch, route its cable to the amplifier, and connect power, ground, and speaker cables.
Press and hold the switch for 4 seconds to enter pairing mode. Connect via your Bluetooth device.
All playback and volume controls are managed by the connected Bluetooth device.
Bluetooth is a short-range protocol with an effective range of approximately 10 meters (30 feet).
The Jensen JAHD240BT is a heavy-duty, two-channel audio amplifier designed for robust performance in challenging environments. Its primary function is to amplify audio signals, delivering 2 x 40 Watts of maximum power, or 2 x 20 Watts RMS, to speakers. This amplifier is stable with speaker impedances ranging from 4 to 8 ohms and offers a wide frequency response from 20 Hz to 20 kHz, ensuring full-range audio reproduction.
A key feature of the JAHD240BT is its integrated Bluetooth Audio (A2DP) capability, allowing users to wirelessly stream audio from any Bluetooth-enabled mobile device. This provides a convenient and cable-free way to enjoy music or other audio content. The amplifier is designed for ease of use, with a simple power/pairing switch that controls both power on/off and Bluetooth pairing functions. When powered on, the amplifier automatically attempts to connect to the last paired Bluetooth device. A steady blue LED indicates a successful connection, while a slowly flashing blue LED signifies that the device is not connected. To pair a new device, users press and hold the switch for approximately 4 seconds to enter pairing mode, indicated by a quickly flashing blue LED. The amplifier remains in pairing mode for two minutes, allowing ample time to search for and connect to "JAHD240BT" from a mobile device. Once connected, all playback and volume controls are managed directly from the Bluetooth-enabled source device. It's important to adjust the device volume to the lowest level before connecting to prevent potential speaker or hearing damage.
The Bluetooth functionality operates on a 2.4 GHz radio protocol with an effective range of approximately 10 meters (30 feet). If a connected device moves out of this range for more than two minutes, the JAHD240BT will disconnect, and the blue LED will flash slowly, requiring user intervention on the Bluetooth device to reconnect.
Maintenance and durability are central to the JAHD240BT's design. It features an epoxy potted enclosure, which provides excellent protection against environmental elements. The amplifier is waterproof to IPx6 standards, meaning it can withstand powerful water jets, making it suitable for marine, off-road, or other outdoor applications where exposure to moisture is common. Additionally, it is corrosion resistant to ASTM B117 standards, ensuring longevity in harsh, corrosive environments. For added protection and reliability, the unit includes a 10 Amp fuse housed in a waterproof holder.
Installation of the JAHD240BT is straightforward. Users should select a smooth, flat, and sturdy location that allows secure mounting and sufficient room for cable routing. The amplifier is mounted using #8 stainless steel screws (not included). A 5/8" hole needs to be drilled for the power/pairing switch, and its cable routed to the amplifier. The power, ground, and speaker cables are then routed and connected according to the provided wiring diagram. The wiring includes dedicated connections for ground (black), +12V battery (yellow), +12V switched (red), right front speaker positive (gray), right front speaker negative (gray/black), left front speaker positive (white), and left front speaker negative (white/black).
Important installation considerations include avoiding mounting the unit where it can be submerged or near the engine or areas exposed to excessive heat, as these conditions could compromise performance or damage the device. The robust construction and thoughtful design of the JAHD240BT make it a reliable choice for delivering high-quality audio in demanding conditions, offering both powerful amplification and convenient wireless connectivity.
General| Number of Channels | 4 |
|---|---|
| Bluetooth | Yes |
| Frequency Response | 20Hz - 20kHz |
| Signal-to-Noise Ratio | > 90dB |
| USB Port | Yes |
| Auxiliary Input | Yes |
| Preamp Outputs | Yes |
| Built-in Microphone | No |
| Radio Tuner | No |
| Remote Control | Yes |
| Total Harmonic Distortion (THD) | 0.05% |
| Input Sensitivity | 200mV |
| Fuse Rating | 25A |
