About the Controls

Level Knob

Setting the level too high will cause the bass to seem bloat- ed and is the single most common cause of bad sounding subwoofers. A rule of thumb is that the subwoofer should not draw attention to itself, but should simply make the sys- tems low end seem more extended and accurate.

Low Pass Filter Knob

When the Dynamo 300 is connected in multi-channel mode (via its LFE input), the low pass filter is not active and your processor handles the bass management. When connected in 2-channel mode via its line level left/right input, the low-pass filter is active.

As a general rule the low pass filter should be set equal to approximately 70% of your speaker’s lowest frequency response. Remember, this is a general rule. We advise that once you try the recommended setting using the for- mula above, you should try the surrounding settings to see which sounds best.

Phase Control Switch

The phase control is entirely dependent on the size and configuration of your listening environment, the placement of the unit, and your seating arrangement. Due to the way bass sound waves develop in different rooms, there is no rule of thumb for setting phase. For instance, if your room has a peak at the subwoofer crossover area, you may wish to set the phase so the actual acoustic outputs of the subwoofer and main speakers are out of phase. Experiment, try different settings and be patient.

Status LED

When the status LED (located on the front bottom of the subwoofer) is blue, the subwoofer is on. When the status LED is off the subwoofer is in standby mode.

Power

The Master Power switch must be set to 'Auto' or 'On' for the subwoofer to operate. When set to 'Auto' the subwoofer will automatically enter a power saving mode when no audio signal is detected. The subwoofer will automatically come out of power saving mode when a signal is detected.

Figure 1. Dynamo 300 controls.

About the Controls

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MartinLogan 300 user manual About the Controls
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300 specifications

The MartinLogan 300 is a high-performance electrostatic speaker that represents a remarkable fusion of innovative technology and sonic excellence. Designed for audiophiles and music enthusiasts alike, the 300 combines MartinLogan's signature electrostatic driver technology with advanced materials and engineering to create an immersive listening experience.

One of the standout features of the MartinLogan 300 is its electrostatic driver system. This technology utilizes a lightweight, electrically charged diaphragm suspended between two stators. When an audio signal is applied, the diaphragm moves rapidly, producing sound with astonishing clarity and precision. The result is a speaker that reproduces high frequencies with minimal distortion, allowing listeners to experience music as the artist intended.

In addition to its electrostatic technology, the MartinLogan 300 includes a sophisticated bass port design. This integration of a 10-inch, high excursion aluminum cone woofer works seamlessly with the electrostatic panel to deliver a full-range sound experience. The woofer boasts a powerful neodymium magnet structure, ensuring responsive and dynamic bass reproduction that complements the crystal-clear highs of the electrostatic driver.

The build quality of the MartinLogan 300 is equally impressive. The cabinet is constructed from high-density MDF, which minimizes resonance and cabinet coloration. The sleek design features an elegant wood veneer finish that adds a touch of sophistication to any listening space. Additionally, the removable grille can be attached or detached easily, giving users the option to showcase the stunning technology within while maintaining a streamlined appearance.

Another notable characteristic is the speaker's wide dispersion pattern. Thanks to its unique electrostatic design, the MartinLogan 300 creates a broad soundstage that immerses listeners in a lifelike sound experience. Whether placed in a small room or a large auditorium, these speakers can fill the space with engaging and detailed sound.

In summary, the MartinLogan 300 delivers outstanding performance through its advanced electrostatic technology, premium woofer, high-quality construction, and wide dispersion characteristics. This speaker is not just an audio device; it's a gateway to an unparalleled musical experience that brings every nuance of sound to life, making it a worthy investment for those serious about their audio systems. With its blend of stylish design and exceptional performance, the MartinLogan 300 stands out as a leading choice for discerning listeners seeking the ultimate in sound reproduction.
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