Reference - Rear Panel

4.RMC Microphone Input – 1/8″ connector for the supplied RMC calibration microphone. CAUTION: This input connector provides +15 volts of phantom power, so be sure to not connect any device other than the supplied RMC calibration microphone to this connector.

5.S/PDIF input connector (phono) – Input connector for incoming digital signal in two-channel S/PDIF Format

6.S/PDIF output connector (phono) – Output connector used to route incoming S/PDIF signal to another speaker.

7.AES/EBU input connector (XLR) – Input connector for incoming digital signal in two-channel AES/EBU Format

8.AES/EBU output connector (XLR) – Output connector used to route incoming AES/EBU signal to another speaker.

9.Harman HiQnet connectors (RJ45 x 2) – Used to interconnect LSR4300 speakers together for centralized system control from any speaker or the provided wireless remote control or LSR4300 Control Center Software.

10.USB connector – Universal Serial Bus Type I connector for computer connection when using the provided LSR4300 Control Center software.

11.DIP switches – These eight switches are used to identify the channel being carried by each speaker in a networked system. If one of the two digital inputs is being monitored, the DIP switch setting also determines whether the speaker is reproducing the left (Channel A) or right (Channel B) side of the incoming stereo signal. In normal operation, only one DIP switch should be in the up (“on”) position for each speaker. For more information, see page 21 in this manual.

DIP switches are also used to restore factory settings. See page 30 in this manual for more information.

12.ACTIVE INPUT display – Whenever the monitor is powered on, one of these LEDs will be lit, indicating whether the speaker is reproducing signal arriving at the analog input, or one of the two digital inputs (S/DIF and AES/EBU). If one of the two digital inputs is being used, the display also shows whether the speaker is reproducing the left (Channel A) or right (Channel B) side of the incoming stereo signal. For more information, see page 23 in this manual.

13.POWER connector – Accepts the supplied IEC power cable.

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JBL LSR4328P, LSR4326P owner manual Reference Rear Panel
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LSR4326P, LSR4328P specifications

The JBL LSR4328P and LSR4326P studio monitors are part of JBL’s acclaimed professional audio lineup, known for their precision, clarity, and innovative technology. Designed for critical listening environments, these monitors are ideal for music production, broadcast, and post-production applications.

One of the standout features of the LSR4328P is its 28/26-watt bi-amplified system, which delivers powerful and detailed sound reproduction. The LSR4328P has an 8-inch woofer and a 1-inch titanium tweeter, while the LSR4326P is equipped with a 6.5-inch woofer and the same 1-inch titanium tweeter. This dual-cone design ensures that both low and high frequencies are reproduced accurately, making them suitable for a variety of musical genres.

Both models include JBL’s patented Image Control Waveguide technology. This unique design enhances the monitors’ stereo imaging and provides a wider sweet spot, allowing listeners to experience a more immersive soundstage. With precise positioning of the tweeter, the waveguide helps achieve a smooth frequency response, which is essential for accurate mixing and mastering.

Another notable feature is the integrated room control EQ, which allows users to tailor the monitors to their specific acoustic environment. This helps to counteract the effects of room acoustics, ensuring that the sound remains consistent and accurate regardless of the listening environment. Additionally, both models support various input options, including balanced XLR and TRS connections, making them versatile for different studio setups.

The LSR4328P and LSR4326P also incorporate advanced DSP technology for refined performance. This includes precise limiting and crossover functionalities that ensure optimal power distribution between the woofer and tweeter. The result is a balanced sound that does not compromise on detail or frequency response.

In terms of build quality, both models feature a sleek, professional design with a durable cabinet that minimizes resonance and distortion. They are equipped with a front-mounted volume control, making it easy to adjust levels during sessions. Together, the JBL LSR4328P and LSR4326P blend state-of-the-art technology with user-friendly features, establishing them as essential tools for professionals seeking high-fidelity sound in their recordings.
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