Meyer Sound Documentation

The UP-4slim loudspeaker uses a Phoenix 5-pin male connector to receive DC power and balanced audio. The input connector’s five pins, two for DC power (-, +) and three for balanced audio (shield/ground, -, +), are clearly labeled on the UP-4slim rear panel, as shown in the figure below.

UP-4slim Rear Panel with Phoenix 5-pin Male Connector

The UP-4slim uses the three-color LED on its rear panel to indicate the loudspeaker’s status.

When powering up the UP-4slim loudspeaker, the following startup events occur and are indicated by the LED:

The UP-4slim LED lights solid yellow to indicate limiting is engaged for the high-frequency channel. The LED flashes yellow to indicate limiting is engaged for the low-frequency channels.

The UP-4slim LED turns yellow when the loudspeaker’s signal rises 2 dB above the limiting threshold, indicating that a safe, optimal level has been exceeded. When limiting is engaged for a channel, its gain is reduced. The limiter protects the drivers and prevents signal peaks from causing excessive distortion in the amplifier, thereby preserving headroom and maintaining a smooth frequency response at high levels. When source levels return to normal below the limiter’s threshold, the LED turns green and limiting ceases.

The UP-4slim performs within its acoustical specifications at normal temperatures when the UP-4slim LED is green, or when limiting is not continuous. During continuous limiting, the loudspeaker is nearing its operational limits, resulting in the following effects:

UP-4slim Temperature and Limiting

The UP-4slim LED also lights solid yellow when its heat sink temperature reaches 65° C (145° F), indicating the unit has reached its maximum heat dissipation. Even though the UP-4slim continues to operate while the LED is yellow, the limiter threshold is lowered, causing the output level to be lowered by 3 dB, to prevent the loudspeaker from overheating. When the temperature of the heat sink cools to 50°C (122°F), the LED changes from yellow to green and the limiter threshold returns to normal.

The UP-4slim LED turns red when the loudspeaker’s input stage clips, causing the amplifier to overload. The source level must be reduced.

Cable lengths up to 150 feet between the UP-4slim and its external power supply are supported with only 1 dB of peak SPL loss using 18 AWG wire. Longer cable lengths are possible with heavier gauge wires (see the tables below).

Calculating the Maximum Cable Length

The maximum cable length for a UP-4slim can be calculated with the following formula:

maximum length = 2 Ω / (2 * cable resistance in Ω/ft)

For example, the maximum length of an 18 AWG cable with a resistance of 0.00636 Ω/ft is 157.2 feet [2 /(2 * 0.00636)].

The most convenient method of wiring UP-4slim loudspeaker cables is with a multiconductor cable such as Belden1502, which has dedicated conductors for DC power and balanced audio in a single jacket. When wiring UP-4slim loudspeaker cables with Belden1502, use the conventions illustrated and described in the figure and table below.

The thicker red and black wires (18AWG) are for DC power. Cables can be up to 150 ft with just 1dB of peak SPL loss.

The blue, white, and shield drain wires (shielded together) are for audio.

Belden 1502 Composite Cable

For installations where Belden 1502 is not feasible, or for installations that require cable runs longer than 150 ft, separate cables for DC power and balanced audio may be used: a large-gauge cable for DC and a high-quality, balanced audio cable for audio. The separate cables attach to the Phoenix connector at the loudspeaker as shown the figure below. DC power cable runs longer than 150 ft require cable gauges larger than 18 AWG; see Cable Lengths and Cable Gauges for UP-4slim Loudspeakers.

Phoenix Connector with Separate Power and Audio Cables

Separate Cables for DC Power and Balanced Audio

When installing Meyer Sound loudspeakers and subwoofers, the following precautions should always be observed:

The top and bottom plates for the UP-4slim cabinet are constructed from aluminum and include threaded metric holes (for M8 screws) for easy connection to QuickFly rigging and third-party mounting options.

UP-4slim Rigging Points

Meyer Sound offers rigging options for the UP-4slim that facilitate a variety of configurations as described in the table below. Dimensions, self-weights, and load ratings for the UP-4slim-specific accessories are in Dimensional Drawings.

It is possible to mount the UP-4slim on a 1-3/8-inch (35 mm) diameter loudspeaker stand or pole using the optional PAS-M8 (PN 40.010.975.01), as shown in the figure below.

UP-4slim with PAS-M8 Adapter

The PAS-M8 Adapter has an M8 threaded end that screws directly into the center M8 rigging point on the bottom of the UP-4slim loudspeaker. The other end slips onto a 35 mm pole and is secured with the adapter knob.

The UP-4slim may be mounted on top of an MM-10 or UMS subwoofer using the MPK-POLE-35MM-M20 Adjustable Pole Mount Kit.

The kit includes a 1-3/8 to 1-1/2 in (35-38 mm) adapter to use with the built-in 1-1/2 in pole mount integrated with the UMS subwoofer.

The MM-10 requires an external 1 3/8-inch (35 mm) stand adapter (PN 40.010.971.01).

The MYA-UP-4slim Yoke (PN 40.274.039.01) suspends a single UP-4slim loudspeaker and allows a wide range of horizontal and vertical adjustment, as shown in the figure below.

The yoke allows a single UP-4slim to be mounted:

The yoke’s bars attach to the bottom and top plate of the loudspeaker with two M8 mounting screws (included in the kit).

MYA-UP-4slim Yoke

The top bar of MYA-UP-4slim Yoke accommodates hanging clamps with up to 1/2-inch or 12-mm bolts

MYA-UP-4slim Yoke & PAS-M8 Adapter Sleeve

In addition to suspending a single UP-4slim, the yoke can also mount the UP-4slim on a 35-mm pole by using an M8 nut and washer to attach the optional PAS-M8 Adapter Sleeve into the yoke, as shown in the figure below. This configuration allows a wide range of pan and tilt adjustments.

MYA-UP-4slim Yoke and PAS-M8 Adapter Sleeve

The MM-10ACX model includes onboard DC power and audio routing for driving a single UP-4slim, enabling a compact, full-range, very easy to assemble and extremely capable loudspeaker system as shown in the figures below.

UP-4slim Mounted on an MM-10ACX Subwoofer

Yoked UP-4slim Mounted on an MM-10ACX Subwoofer

The MUB-UP-4slim U-bracket (PN 40.274.039.01) enables mounting of a single UP-4slim loudspeaker in a wide range of orientations:

Wall-Mounting with the MUB-UP-4slim

Use the MUB-UP-4slim U-bracket to mount the UP-4slim on a wall either vertically or horizontally, as shown in the figures below.

MUB-UP-4slim Mounted on Wall Vertically

MUB-UP-4slim Mounted on Wall Horizontally

Ceiling-Mounting with the MUB-UP-4slim

Use the MUB-UP-4slim U-bracket shown in the figure below to mount the UP-4slim on a ceiling, underbalcony, or canopy area.

MUB-UP-4slim Mounted on Ceiling

Floor-Mounting with the MUB-UP-4slim

Use the MUB-UP-4slim U-bracket shown in the figure below to mount the UP-4slim on a floor or stage lip for front-fill applications.

MUB-UP-4slim Mounted on Floor

The MAPP System Design Tool is a powerful, cross-platform application for accurately predicting the coverage pattern, frequency response, phase response, impulse response, and SPL capability of individual or arrayed Meyer Sound loudspeakers.

MAPP System Design Tool

Whether planning for fixed installations or for tours with multiple venues, use MAPP to accurately predict the appropriate loudspeaker deployment for each job, complete with coverage data, system delay and equalization settings, rigging information, and detailed design illustrations. MAPP’s accurate, high-resolution predictions ensure that systems will perform as intended, thereby eliminating unexpected coverage problems and minimizing onsite adjustments.

The key to the accuracy of MAPP’s predictions is MeyerSound’s exhaustive database of loudspeaker measurements. Performance predictions for each loudspeaker are based on 3-dimensional, 65,000+ 1/48th-octave-band measurements taken in the MeyerSound anechoic chamber. The extraordinary consistency between Meyer Sound loudspeakers guarantees that predictions from MAPP will closely match their actual performance.

MAPP software allows for configuration of MeyerSound loudspeaker systems and definition of the environment in which they operate, including air temperature, pressure, humidity, and the location of prediction surfaces. Importing both CAD (.DXF) and Sketchup (.SKP) files containing detailed venue information to act as an anchor model to the prediction surfaces and a visual aid to facilitate prediction data interpretation is also possible.

With MAPP, you can:

The Galileo GALAXY Network Platform is a sophisticated loudspeaker management tool for controlling all MeyerSound speaker types. The GALAXY loudspeaker processor extends a high level of audio control in driving and aligning loudspeaker systems with multiple zones. It provides a powerful tool set for corrective equalization (EQ) and creative fine-tuning for a full range of applications from touring to cinema.

Users can readily program the GALAXY processor using Compass software running on a host computer or via the Compass Go application for the iPad. Connecting MAPP to the GALAXY processor will also allow the user to push output channel settings created in MAPP as a starting point. Compass Control Software includes custom-designed settings for each family of speakers, as well as to integrate families together. For example, the Product Integration feature matches the phase characteristics between Meyer speaker families to ensure the most coherent summation.

Processing tools for inputs and outputs include delay, parametric EQ and U-Shaping EQ. Output processing also includes polarity reversal, Low-Mid Beam Control (LMBC), atmospheric correction, and All Pass filters.

The built-in summing and delay matrices allow a user to easily assign gain and delay values, respectively, at each cross point. This capability greatly facilitates using one loudspeaker to satisfy multiple purposes.

Front panel controls let a user intuitively and quickly operate a GALAXY processor without a computer during live use.

The GALAXY 408, GALAXY 816 and GALAXY 816-AES3 processor versions have the same audio processing capability with different I/O. See www.meyersound.com to locate their datasheets for more information.

Weather Protection is strongly recommended for all permanent outdoor installations where loudspeakers are directly exposed to the elements. This recommendation includes desert and semi-arid climates, where protection against dust and sand is important, and where infrequent rainstorms can contribute to deterioration of loudspeaker components.

Weather Protection is also recommended when the loudspeakers are sheltered from direct exposure to precipitation, but are nevertheless exposed to prolonged high humidity, fog or mist. Examples would be installations on covered outdoor terraces or pavilions.

Weather Protection is further advisable for portable or touring systems when any significant outdoor use is anticipated. Even though standard procedures may call for using external protective measures, these are often not implemented in time to prevent moisture intrusions that could lead to premature performance degradation of the loudspeaker.

The wear and tear on a loudspeaker will vary significantly with different climatic conditions. For example, a weather-protected loudspeaker installed in a sunlight-exposed location on an ocean pier will experience much harsher conditions than a loudspeaker in a similar installation that is shaded by trees and exposed only to rainfall. The constant exposure to direct UV radiation and a salt air environment will cause a loudspeaker to wear more quickly than one with partial UV shielding and exposed only to freshwater moisture.

Wear can eventually affect the performance of the loudspeaker. It also affects aesthetics. For example, in salt air environments, the exterior grille can quickly show signs of oxidation, causing unsightly discoloration.

Apart from selecting suitable weather protection, the progress of wear and tear on the loudspeaker can be slowed by a regular schedule of inspection and cleaning. This maintenance is particularly necessary in harsh environments. Inspection and cleaning should include routine removal of any visible oxidation or environmental particulates, as these can accelerate metal corrosion or decay of the cabinet. If installed loudspeakers are not in use for an extended period, exterior protection or temporary removal and storage of the loudspeakers should be considered.

The UPQ loudspeakers are two-way and self-powered and are available in three coverage patterns to fit any application, from FOH mains in small-to-midscale systems to fills in large systems. UPQ speakers are available in wide (UPQ-D1), narrow (UPQ-D2), and ultra-wide (UPQ-D3) coverage patterns.

Functionality — Weather Protection prolongs the service life of the loudspeaker by preventing premature degradation of internal components.

Safety — Weather Protection lessens the chance of electrical malfunctions or structural failures.

Aesthetics — Weather Protection slows wear and tear on the exterior of the loudspeaker in harsh conditions. Early signs of wear and tear on the exterior of the loudspeaker indicate over-exposure to the elements.

Standards Compliance — Weather Protection helps in meeting IP ratings for loudspeakers. IP ratings are an internationally recognized standard often used in installations involving our products. A further explanation of IP ratings is given in IP Ratings.