Hum or noise is produced by the speaker

4.Send the audio signal to another speaker to insure signal presence and that the level is within the proper range. Turn the source level down before reconnecting the audio input and increase the level slowly to avoid a sudden blast of sound.

5.Ifpossible,monitortheaudiosourcewithheadphones.

Hum or noise is produced by the speaker.

1.Disconnect the audio input. If the hum ceases, the noise originates somwhere earlier in the signal path. If the noise persists, the problem is within the UM-P. In this case return the unit to the factory or nearest authorized service center.

2.Make sure the XLR cable is securely fastened to the XLR audio input connector.

3.Send the audio signal to another speaker to insure signal presence and that the level is within the proper range. Turn the source level down before reconnecting the audio input and increase the level slowly to avoid a sudden blast of sound.

5.Hum or noise can be produced by a ground loop. Since the UM-P is effectively ground-lifted, this should not occur unless grounds are extremely different voltages.

The audio produced by the speaker is distorted or compressed but the limit light is not illuminated.

1.Make sure the XLR cable is securely fastened to the XLR audio input connector.

2.Send the audio signal to another speaker to insure that the level is within the proper range. Turn the source level down before reconnecting the audio input and increase the level slowly to avoid a sudden blast of sound.

3.Monitor the audio source with headphones.

The audio produced by the speaker is highly compressed and the limit light is constantly yellow.

1.Turn down the level of the input signal to the speaker system.

Only the high or low driver seems to pro- duce sound.

1.Make sure the audio signal is full-range and has not been filtered in a previous stage of the signal chain. If possible, monitor the audio source with high-quality headphones.

2.Send the audio signal to another speaker to insure that the signal is full-range. Turn the source level down before reconnecting the audio input and increase the level slowly to avoid a sudden blast of sound.

3.Use a sine wave and/or pink noise generator to send a variety of frequencies to the speaker.

There is some sound but the On/Temp. LED turns from green to red.

This occurs when the heatsink temperature reaches 85°C (185°F), indicating that the amplifier is thermally over- loaded. The limiter threshold has dropped to a safe level, so the audio level is probably reduced.

1.Make sure there is enough clearance above, below, and behind the unit.

2.Make sure there is sufficient air flow around the unit.

3.Avoid exposing the heatsink to direct sunlight if the ambient temperature is high.

4.If the ambient temperature is greater than 30°C and this condition occurs frequently, contact Meyer Sound to order the optional Fan Kit.

See the section Amplification, Limiting, and Cooling System on page 6 for a complete discussion about the cooling system.

There is no sound, the On/Temp. LED is dim or off, and the power supply fan is on high speed.

This extremely rare event occurs when the power supply overheats, causing a 1-2 minute interruption in operation. The unit turns on again when the power supply has cooled sufficiently.

1.Make sure there is at least six inches clearance behind the unit.

2.Make sure there is sufficient air flow around the unit.

3.Avoid exposing the unit to direct sunlight in high ambient temperature.

See the section Amplification, Limiting, and Cooling System on page 6 for a more information about the power supply’s internal fan and cooling system.

UM-100P, UM-1P specifications

Meyer Sound, a leader in professional audio technology, has produced a range of high-performance stage monitors, among which the UM-1P and UM-100P models stand out for their exceptional sound fidelity and robust design. These monitors are engineered to deliver precise audio reproduction, making them ideal for live performances, studio recordings, and various sound reinforcement applications.

The Meyer Sound UM-1P is a self-powered, wide-range stage monitor that excels in providing a stable and consistent sound quality. Its compact, low-profile design ensures that it fits well in any stage setting while also maintaining visual appeal. One of its key features is the proprietary high-frequency compression driver, which allows for incredible clarity and detail in vocal performances. The UM-1P is notable for its low distortion and extended frequency response, ensuring that artists hear themselves accurately, even in the most demanding acoustic environments.

On the other hand, the UM-100P model is slightly larger and more powerful, designed for a variety of performance settings. It features dual input connections, enabling flexible integration with different audio systems. The UM-100P utilizes Meyer Sound's patented low-frequency technology, which delivers tight and impactful bass performance without compromising clarity in the mid and high frequencies. The advanced crossover design ensures that sound remains consistent across the entire frequency range, making it a preferred choice for discerning sound engineers.

Both models incorporate Meyer Sound's legendary build quality, ensuring durability and reliability during rigorous touring schedules. The sturdy cabinets are designed to withstand the rigors of active use while minimizing unwanted resonances. Additionally, the built-in power amplifiers are optimized for each speaker, providing sufficient headroom and protection against overheating.

Another standout feature is the ease of setup and integration with other Meyer Sound products. These monitors can be seamlessly combined with Meyer Sound’s broader speaker systems, creating an integrated audio experience ideal for any venue.

In summary, the Meyer Sound UM-1P and UM-100P are indispensable tools for professional audio applications, offering unparalleled sound quality, durability, and versatility. With their innovative technologies and meticulous engineering, these stage monitors continue to elevate live performance experiences worldwide.