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Technical data and operating parameters for the JBL 5231 and 5232 electronic frequency dividing networks.
Details the manufacturer's warranty terms, coverage, and conditions for JBL products.
Introduces the product's design, features, and primary application in audio systems.
Lists the key benefits and operational improvements offered by these dividing networks.
Explains how to connect the unit to audio sources and power amplifiers.
Details the process of inserting specific frequency crossover cards into the unit.
Describes how to install the unit in standard EIA racks for professional audio setups.
Covers terminal types, cable requirements, and impedance matching for signal flow.
Illustrates typical bi-amplification and tri-amplification system configurations using the devices.
Step-by-step guide to confirm correct connections before powering up the audio system.
Methods for optimizing speaker driver phase for improved sound quality.
Procedures for setting relative driver levels for balanced audio output.
Guidance for creating custom crossover frequency cards for the units.
A list of major components required for servicing and repair of the devices.
Technical guidance for diagnosing and resolving issues with the units.
Detailed circuit diagram for the JBL 5232 electronic frequency dividing network.
Technical data and operating parameters for the JBL 5231 and 5232 electronic frequency dividing networks.
Details the manufacturer's warranty terms, coverage, and conditions for JBL products.
Introduces the product's design, features, and primary application in audio systems.
Lists the key benefits and operational improvements offered by these dividing networks.
Explains how to connect the unit to audio sources and power amplifiers.
Details the process of inserting specific frequency crossover cards into the unit.
Describes how to install the unit in standard EIA racks for professional audio setups.
Covers terminal types, cable requirements, and impedance matching for signal flow.
Illustrates typical bi-amplification and tri-amplification system configurations using the devices.
Step-by-step guide to confirm correct connections before powering up the audio system.
Methods for optimizing speaker driver phase for improved sound quality.
Procedures for setting relative driver levels for balanced audio output.
Guidance for creating custom crossover frequency cards for the units.
A list of major components required for servicing and repair of the devices.
Technical guidance for diagnosing and resolving issues with the units.
Detailed circuit diagram for the JBL 5232 electronic frequency dividing network.
The JBL Professional Series 5231 (single channel) and 5232 (dual channel) are electronic frequency dividing networks designed for use in bi-amplified or tri-amplified studio monitor and sound reinforcement loudspeaker systems. These devices separate an audio signal into high and low frequency bands (or mid and ultra-high frequency bands in tri-amplification) prior to amplification, allowing individual power amplifiers to drive specific loudspeaker components more effectively. This approach aims to reduce distortion, offer greater flexibility in system configuration, and potentially lead to cost savings by eliminating the need for high-level passive crossover networks for each loudspeaker system.
The 5231 and 5232 receive a line-level program signal from an audio preamplifier, studio mixdown console, or portable mixer. They then divide this signal into distinct frequency bands. The outputs from the network feed the appropriate power amplifiers, which in turn drive their respective loudspeaker system components. The 5231 provides a single channel crossover, while the 5232 offers two separate channels with independent crossover action, suitable for stereo installations.
A key feature is the use of plug-in crossover cards to select the desired crossover frequency. These cards determine the 3-dB crossover point and implement a 12 dB per octave filter slope, with high and low frequency outputs attenuated by 3 dB at the crossover point. Standard crossover cards are available for common frequencies like 500 Hz and 800 Hz, as well as specific characteristics required for JBL 4330, 4332, 4340, and 4350 bi-amplified studio monitors. Blank cards (JBL Model 52-5120) are also available for users to construct custom crossover networks for other frequencies (e.g., 900 Hz, 1100 Hz, 1200 Hz, 1500 Hz, 2000 Hz, 2500 Hz, 5000 Hz, 6000 Hz, 7000 Hz, and 9500 Hz) using standard components (five identical resistors and five identical capacitors). The selected crossover frequency is indicated through a front panel window.
The front panel includes a power switch, a pilot light, and a high-frequency level control for each channel, allowing for easy adjustment of the high-frequency output level.
| Brand | JBL |
|---|---|
| Model | 5231 |
| Category | Network Hardware |
| Language | English |