Reference - Performing An RMC Calibration/Equalization

The supplied calibration microphone must be connected to perform RMC. If the RMC button is pressed and held for 3 seconds or longer and no mic is connected, the meter display will flash to indicate an error condition, and all RMC settings currently in memory will be erased.

RMC error condition

To bypass the calibrated settings and compare the original, uncompensated performance with the corrected performance, press the RMC button so that it lights up. This allows you to listen to the speaker without the filter, delay, level trim and meter calibration applied during the RMC process. To restore RMC functions, press the button again. The button will no longer be illuminated.

Equalization

Equalization is provided to tailor response to preference, or acoustic conditions in the room. The LSR4300 offers two bands of onboard digital equalization (high and low frequency), with up to 2 dB of cut and boost in each band. The equalization is shelving type with centers of 500 Hz for low frequency and 2 kHz for high-frequency. Using the supplied LSR4300 Control Center software, the corner frequency for each band is adjustable from 20 Hz to 1 kHz (LF) and 1 kHz and 20 kHz (HF).

To turn equalization on, press the EQ button on any networked speaker so that it lights up. The LF and/or HF buttons immediately to the right of the EQ button will also light up if the current setting contains LF or HF boost or cut. (If the current EQ setting contains “flat” LF or HF equalization – that is, no boost or cut – the associated button will not light.)

To apply equalization, simply press the LF or HF button (it will begin blinking), followed by the +/- buttons. The meter display LEDs will light (all in green) to show you the amount of cut or boost. If only the two LEDs on either side of the center (-15) mark are lit, that is an indication that the selected equalization band is flat (i.e., no cut or boost). LEDs lit to the right of center (that is, to the right of the –15 mark) indicate the amount of equalization boost, while LEDs lit to the left of center (that is, to the left of the –15 mark) indicate the amount of equalization cut. With every 0.25 dB of equalization boost or cut, an additional two LEDs light. Thus, for example, an equalization boost of 1 dB is indicated by eight LEDs lit to the

right of the center (-15) mark.

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JBL LSR4326P, LSR4328P owner manual Reference Performing An RMC Calibration/Equalization
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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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