Meyer Sound UM-1P Speaker System Manual - Wiring, Input, and Safety Guidelines

Power Connector Wiring

Use the following AC cable wiring diagram to create international or special-purpose power connectors:

The Modular Rear Panel

blue = neutral

brown = hot

The rear panel of the UM-P has two slots for processor modules. The top slot contains the Audio Input and Control Module; the bottom slot contains the optional Remote Monitoring System™ (RMS) Module. A blank

yellow/green = earth ground (chassis)

AC cable color code

If the colors referred to in the diagram don't correspond to the terminals in your plug, use the following guide- lines:

•Connect the blue wire to the terminal marked with an N or colored black.

•Connect the brown wire to the terminal marked with an L or colored red.

•Connect the green and yellow wire to the terminal

marked with an E (or ) or colored green (or green and yellow).

Safety Issues

Do not use a ground-lifting adapter or cut the AC cable ground pin.

plate covers the bottom slot if RMS is not installed. For drawings of these modules, see page 13.

Audio Input

There are three, interchangeableAudio Input and Control Modules with optimized connectors and controls for different applications. Each module has a 24V Fan connector to power an optional fan (see page 7).

Each module uses a three-pin, female XLR audio input connector with a 10 kΩ balanced input impedance wired with the following convention:

Pin 1	—	220 kΩ to chassis and earth ground (ESD clamped)
Pin 2	—	Signal	Differential Inputs

Pin 3	—	Signal


Case	—	Earth (AC) ground and chassis

Pins 2 and 3 carry the input as a differential signal. Use standard audio cables with XLR connectors for balanced signal sources. A single audio source can drive multiple UM-Ps with a paralleled input loop, creating an unbuf- fered hardwired loop connection, with negligible loss in signal level. For example, since the input impedance of one UM-P is 10 kΩ , looping 20 UM-Ps produces a balanced input impedance of 500Ω . With a 150Ω audio source, the 500Ω load results in only a 2.28 dB loss.

Keep all liquids away from the UM-P to avoid hazards from electrical shock.

Do not operate the unit with worn or frayed cables; replace them immediately.

If the UM-P will be installed outdoors contact Meyer Sound for information about the rain hood and weather protection for the drivers and electronics.

While a single UM-P can be hung by its handle bars, do not hang any additional weight from the cabinet. UM-P handle bars are not designed to support heavy rigging loads.

Looping Audio Input Module

This standard module uses a balanced, female XLR connector for audio input and a male XLR loop connector to interconnect multiple speakers. The audio input connector is hardwired with pin 2 hot to comply with audio industry standards. The loop connector, wired in parallel to the audio input, transmits the input signal if the UM-P is turned off for any reason.

Summing Audio Input Module

This module has a balanced, female XLR connector for audio input but has, instead of a loop connector, a second female XLR connector that functions as a summing input. Applying a signal to one of the inputs results in a normal signal level. Utilizing both summing inputs creates a correctly summed mono signal with each input 6 dB below the level of a single input. This is an effective method for distributing both sides of a stereo signal to a single UM-P without requiring external level control.

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.