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JBL Marine A754 4-Channel Audio Power Amplifier With Class H
Product Description
Product Description
JBL Marine A754 4-Channel Audio Power Amplifier With Class H
The JBL A754 delivers flexible four-channel power for marine audio systems while keeping its footprint compact. With Class H amplifier technology, adjustable crossovers, and multiple input options, it offers strong output without excessive current draw. Whether you are working with a factory or aftermarket marine stereo, this amplifier gives you practical control over your system.
Efficient Class H Amplifier Technology
The JBL A754 uses Class H amplifier technology to deliver up to 400 watts RMS of total output. This design helps provide high output while keeping current draw to a minimum.
It produces 75 watts RMS x 4 at 4 ohms or 100 watts RMS x 4 at 2 ohms. You can also bridge the amplifier for 200 watts RMS x 2 at 4 ohms.
Compact Chassis for Limited Spaces
Marine environments often leave little room for extra audio equipment. The JBL A754 features a low-profile chassis and compact overall footprint to fit where available space is limited.
It measures 320mm x 51.3mm x 180mm, or 12-5/8 x 2-1/16 x 7-1/8 inches. As a result, it combines substantial four-channel power with a space-conscious design.
Variable Crossovers for Better System Control
The JBL A754 includes variable electronic crossovers for more precise system tuning. Both the front and rear channels feature adjustable high-pass and low-pass filters.
You can adjust the crossover frequency from 32Hz to 320Hz with a 12 dB-per-octave slope. This flexibility gives you greater control over the frequencies sent through your audio system.
Adjustable Input Level Control
Different audio sources can produce different signal levels, so input adjustment matters. The JBL A754 lets you fine-tune input sensitivity based on the type of connection you use.
With low-level inputs, sensitivity adjusts between 200mVrms and 4Vrms. Meanwhile, high-level inputs provide an adjustment range between 1Vrms and 22Vrms.
High-Level and Low-Level Input Compatibility
The JBL A754 supports both speaker-level and low-level inputs. Therefore, it can integrate with both factory and aftermarket marine stereo systems.
This flexibility makes it easier to match the amplifier with different audio sources without limiting your system to one input type.
Full-Range Preamp Outputs
Planning to use more than one amplifier? The JBL A754 includes full-range preamp outputs that allow you to send audio signals to an additional amplifier.
Because of this design, you can expand your audio system without relying on separate signal splitters. It keeps your signal path more direct and organized.
Selectable Turn-On Mode
The JBL A754 includes a selectable turn-on mode that switches between DC and REM operation. This allows the amplifier to adapt to low-level or high-level signal configurations.
The appropriate setting can also help reduce unnecessary battery current drain when you do not expect the amplifier to turn on.
Balanced Differential Inputs for Low Noise
Unwanted engine noise can quickly interfere with your listening experience. The JBL A754 uses Balanced Differential Inputs to help maintain low noise and distortion, even at high output levels.
This design also makes the amplifier less susceptible to line-induced engine noise. Think of it as an added layer between your audio signal and unwanted electrical interference.
Built-In Protection Circuitry
The JBL A754 includes onboard protection against shorts, high temperatures, overvoltage, and undervoltage conditions. These safeguards help protect the amplifier when abnormal operating conditions occur.
An LED indicator also lets you know when one of these protection conditions exists, giving you a clear visual reference when the amplifier enters protection mode.
Power and Fuse Requirements
The amplifier uses two 30A fuses and comes with four 30A ATO fuses. Two are installed, while two additional fuses are included as spares.
JBL recommends 8-gauge power and ground leads. However, the required wiring and hardware are not included with the amplifier.
What's in the Box?
- One JBL Marine A754 four-channel amplifier
- Four bare wire-to-RCA adapters
- Four 30A ATO fuses, including two installed and two spare
- Two JBL stickers
- Owner's Manual
- Four M4 x 53mm mounting screws
- One logo badge
Flexible Power for Your Marine Audio System
The JBL A754 brings together efficient Class H amplification, flexible four-channel output, adjustable crossovers, and broad input compatibility. Its compact chassis helps when space is limited, while Balanced Differential Inputs support cleaner audio performance. With preamp outputs, bridged operation, and onboard protection, it provides the flexibility needed for a range of marine audio configurations.
Frequently Asked Questions
How much power does the JBL A754 deliver? The amplifier provides 75 watts RMS x 4 at 4 ohms or 100 watts RMS x 4 at 2 ohms. In bridged mode, it delivers 200 watts RMS x 2 at 4 ohms.
What type of amplifier technology does the JBL A754 use? It uses Class H amplifier technology designed to provide high output while minimizing current draw.
Does the JBL A754 include adjustable crossover controls? Yes. It features variable high-pass and low-pass filters from 32Hz to 320Hz with a 12 dB-per-octave slope on the front and rear channels.
Can the JBL A754 connect to factory and aftermarket marine stereos? Yes. Its speaker-level and low-level inputs allow it to work with both factory and aftermarket marine stereo systems.
What protection features are built into the JBL A754? The amplifier includes protection against shorts, high temperatures, overvoltage, and undervoltage. An LED indicator shows when one of these protection conditions occurs.
Features & Specs
Features & Specs
Warranty
Warranty
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Product Description
Product Description
JBL Marine A754 4-Channel Audio Power Amplifier With Class H
The JBL A754 delivers flexible four-channel power for marine audio systems while keeping its footprint compact. With Class H amplifier technology, adjustable crossovers, and multiple input options, it offers strong output without excessive current draw. Whether you are working with a factory or aftermarket marine stereo, this amplifier gives you practical control over your system.
Efficient Class H Amplifier Technology
The JBL A754 uses Class H amplifier technology to deliver up to 400 watts RMS of total output. This design helps provide high output while keeping current draw to a minimum.
It produces 75 watts RMS x 4 at 4 ohms or 100 watts RMS x 4 at 2 ohms. You can also bridge the amplifier for 200 watts RMS x 2 at 4 ohms.
Compact Chassis for Limited Spaces
Marine environments often leave little room for extra audio equipment. The JBL A754 features a low-profile chassis and compact overall footprint to fit where available space is limited.
It measures 320mm x 51.3mm x 180mm, or 12-5/8 x 2-1/16 x 7-1/8 inches. As a result, it combines substantial four-channel power with a space-conscious design.
Variable Crossovers for Better System Control
The JBL A754 includes variable electronic crossovers for more precise system tuning. Both the front and rear channels feature adjustable high-pass and low-pass filters.
You can adjust the crossover frequency from 32Hz to 320Hz with a 12 dB-per-octave slope. This flexibility gives you greater control over the frequencies sent through your audio system.
Adjustable Input Level Control
Different audio sources can produce different signal levels, so input adjustment matters. The JBL A754 lets you fine-tune input sensitivity based on the type of connection you use.
With low-level inputs, sensitivity adjusts between 200mVrms and 4Vrms. Meanwhile, high-level inputs provide an adjustment range between 1Vrms and 22Vrms.
High-Level and Low-Level Input Compatibility
The JBL A754 supports both speaker-level and low-level inputs. Therefore, it can integrate with both factory and aftermarket marine stereo systems.
This flexibility makes it easier to match the amplifier with different audio sources without limiting your system to one input type.
Full-Range Preamp Outputs
Planning to use more than one amplifier? The JBL A754 includes full-range preamp outputs that allow you to send audio signals to an additional amplifier.
Because of this design, you can expand your audio system without relying on separate signal splitters. It keeps your signal path more direct and organized.
Selectable Turn-On Mode
The JBL A754 includes a selectable turn-on mode that switches between DC and REM operation. This allows the amplifier to adapt to low-level or high-level signal configurations.
The appropriate setting can also help reduce unnecessary battery current drain when you do not expect the amplifier to turn on.
Balanced Differential Inputs for Low Noise
Unwanted engine noise can quickly interfere with your listening experience. The JBL A754 uses Balanced Differential Inputs to help maintain low noise and distortion, even at high output levels.
This design also makes the amplifier less susceptible to line-induced engine noise. Think of it as an added layer between your audio signal and unwanted electrical interference.
Built-In Protection Circuitry
The JBL A754 includes onboard protection against shorts, high temperatures, overvoltage, and undervoltage conditions. These safeguards help protect the amplifier when abnormal operating conditions occur.
An LED indicator also lets you know when one of these protection conditions exists, giving you a clear visual reference when the amplifier enters protection mode.
Power and Fuse Requirements
The amplifier uses two 30A fuses and comes with four 30A ATO fuses. Two are installed, while two additional fuses are included as spares.
JBL recommends 8-gauge power and ground leads. However, the required wiring and hardware are not included with the amplifier.
What's in the Box?
- One JBL Marine A754 four-channel amplifier
- Four bare wire-to-RCA adapters
- Four 30A ATO fuses, including two installed and two spare
- Two JBL stickers
- Owner's Manual
- Four M4 x 53mm mounting screws
- One logo badge
Flexible Power for Your Marine Audio System
The JBL A754 brings together efficient Class H amplification, flexible four-channel output, adjustable crossovers, and broad input compatibility. Its compact chassis helps when space is limited, while Balanced Differential Inputs support cleaner audio performance. With preamp outputs, bridged operation, and onboard protection, it provides the flexibility needed for a range of marine audio configurations.
Frequently Asked Questions
How much power does the JBL A754 deliver? The amplifier provides 75 watts RMS x 4 at 4 ohms or 100 watts RMS x 4 at 2 ohms. In bridged mode, it delivers 200 watts RMS x 2 at 4 ohms.
What type of amplifier technology does the JBL A754 use? It uses Class H amplifier technology designed to provide high output while minimizing current draw.
Does the JBL A754 include adjustable crossover controls? Yes. It features variable high-pass and low-pass filters from 32Hz to 320Hz with a 12 dB-per-octave slope on the front and rear channels.
Can the JBL A754 connect to factory and aftermarket marine stereos? Yes. Its speaker-level and low-level inputs allow it to work with both factory and aftermarket marine stereo systems.
What protection features are built into the JBL A754? The amplifier includes protection against shorts, high temperatures, overvoltage, and undervoltage. An LED indicator shows when one of these protection conditions occurs.
