Dynacord Stereo System User Manual

Paging/Background Music Systems

How to Design and Sell Paging and Background Music Systems from EV & Dynacord

DISCLAIMER & COPYRIGHT

The material and instructions covered in the document are subject to change without notice. Telex Communications, Inc. does not guarantee the suitability of the material contained herein for your particular application.

Copyright © 2003 Telex Communications, Inc. All rights reserved.

Table Of Contents
Table Of Contents............................................................................................................................	3
The Business Audio “Business”.......................................................................................................	5
EV HAS ALL THE PERFECTLY POSITIONED PRODUCTS! ...............................................	5
EV Business Audio Product Guide..................................................................................................	7
EVID Surface Mount Speaker Systems ......................................................................................	7
Innovation in Design ...............................................................................................................	7
Innovation in Functionality ......................................................................................................	7
Model Summary......................................................................................................................	7
Full Range Audio Performance...............................................................................................	7
“Outdoor Ready” Construction................................................................................................	8
EVID Ceiling Mount Speaker Systems .......................................................................................	8
The EVID Ceiling Speaker Solution – Why is it Different? .....................................................	8
The EVID C8.2HC – Wide Spectrum Pattern Control in a Compact Package .......................	8
The EVID 4.2, 8.2 and 8.2L – Full Range Models with Punch ...............................................	9
The 10.1 - Finally a Compact True Ceiling Subwoofer...........................................................	9
EV Raw Frame Ceiling Speakers................................................................................................	9
EV Amplification Products .............................................................................................................	10
MA Series Mixer Amplifiers .......................................................................................................	10
Primary Features...................................................................................................................	11
EV Commercial Power Amplifiers .............................................................................................	11
CPS Series Power Amplifiers....................................................................................................	11
Key CPS Amplifier Product Features....................................................................................	12
ProAnnounce Digital Routing System ...........................................................................................	12
Overview ...................................................................................................................................	12
Basic System Components .......................................................................................................	13
Audio Routing Made Easy.........................................................................................................	13
ProAnnounce DP Series Power Amplifiers ...............................................................................	13
Basic Business Audio System Design Guide ................................................................................	14
The Basic System Components................................................................................................	14
Microphones..........................................................................................................................	14
Signal Routing and Processing.............................................................................................	14
Amplification..........................................................................................................................	14
Speakers ...............................................................................................................................	14
What to Recommend? ..............................................................................................................	14
Step 1 – Know the Job!.........................................................................................................	14
Step 2 – Determine the Acoustic Requirements...................................................................	15
Step 3 – Conduct a Preliminary Layout and “Walk Through” ...............................................	15
Step 4 – Assemble the Equipment List.................................................................................	16
Expect The Unexpected........................................................................................................	16
Standardizing for Profitability ................................................................................................	17
Speaker Selection .....................................................................................................................	17
Ceiling vs. Surface Mount Systems ......................................................................................	17
Selecting & Positioning Ceiling Loudspeakers .....................................................................	17
Ceiling Speaker Coverage ....................................................................................................	18
Converting Coverage Specs to A Layout..............................................................................	19
An Example of Coverage Pattern vs. Speaker Size .............................................................	19
When Controlled Coverage is Needed .................................................................................	20
The Use of Subwoofers ........................................................................................................	20
Positioning Subwoofer Components.....................................................................................	21
Choosing the Best Mixer/Amplifier............................................................................................	21

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Analyzing the Application......................................................................................................	21
When To Specify Mixer/Amplifiers........................................................................................	22
When the Job Calls For ProAnnounce!.....................................................................................	23
The DRM4000 vs. the DPM4000 ..............................................................................................	23
DPM4000 4x4 Matrix Router.................................................................................................	23
DRM 4000 Mixer ...................................................................................................................	23
Volume And Tone Controls / Delays.....................................................................................	24
Signal Generators / Voice Message Memory .......................................................................	24
Control Inputs And Outputs...................................................................................................	24
Clock / Calendar....................................................................................................................	25
Monitoring .............................................................................................................................	25
Macros ..................................................................................................................................	25
Interfaces ..............................................................................................................................	25
Station Control Consoles ......................................................................................................	26
Understanding DCS Expansion Options...............................................................................	26
The DCS 400 Expansion Chassis.........................................................................................	27
BGM and Paging System Designs............................................................................................	27
BGM Installations - System Examples ..........................................................................................	28
Retail Store – Single Zone ........................................................................................................	28
Office Building - 5 Zone - Simplified system .............................................................................	29
Bar-Restaurant - 2 Zone ...........................................................................................................	30
Health Club - 4 Zone .................................................................................................................	31
Retail Clothing Store -2 Zone....................................................................................................	32
Retail Book/Record Store -3 Zone ............................................................................................	33
Large Department Store - 6 Zone .............................................................................................	34
Basic Warehouse - 5 Zone........................................................................................................	35
Multi-Use Warehouse, Factory & Office Facility - 15 Zone.......................................................	36
Appendix A: Distributed Audio Systems – A Primer .................................................................	37
Why Is It Called “Constant Voltage”?....................................................................................	37
What Are the Advantages to Constant Voltage Systems? ...................................................	37
Amplifier Bridging..................................................................................................................	38
Single-Channel Direct Drive..................................................................................................	38
Use of Autotransformers .......................................................................................................	39

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The Business Audio “Business”

Business audio or “background music” has come a long way since the days of Muzak and “elevator music” systems of the 50’s – 80’s. Countless retail establishments such as clothing stores restaurants, department stores and even “drug stores” are spending money on better quality audio.

Many contractors and BGM integrators are rapidly discovering this fast growing source of business and several manufacturers have introduced products to meet these new demands. There are several at the low end of the market, some in the middle but virtually no one has ventured into the premium end of the market.

Some estimates put the size of the U.S. BGM market at over $250 million dollars. The rate of growth has been over 10% in recent years primarily due to the increased cost per installation. Including installation labor the average high quality BGM install is now over $7,500, up from less than $3,000 just a decade ago.

EV is perfectly positioned to capture a major portion of the growing business. Over the last 3 years we have made major inroads in positioning our speaker products to fit into this market. The EVID line of speakers has grown to fill virtually every segment in the middle and upper BGM market segments.

Now however we are able to complete the entire system offering in nearly every segment. The breadth of the BGM offerings is quite amazing. We can now offer complete BGM systems with equipment costs from under $1,000 to over $20,000 at dealer. NO ONE ELSE IN THE BUSINESS CAN DO THIS! EV is the only source that can offer a complete solution for a department store, restaurant, or any other retail environment.

EV HAS ALL THE PERFECTLY POSITIONED PRODUCTS!

Category	Product Range	The EV Advantage
Microphones	Telex and EV Paging Mics	Over 50 years of proven
		performance.
Audio Routers	ProAnnounce Matrix Manager	Powerful and economical. No
		system can offer this level of
		flexibility for under $1,000
System	ProAnnounce Designer Software	The most flexible and
Integration		sophisticated solution available
Speakers	EVID premium speakers and standard EV	Wide range of solutions with
	component ceiling speakers	leading edge designs
Amplification	MA Series mixer amplifiers ProAnnounce	Comprehensive and reliable
	and EV power amplifiers	product. Wide range of price
		points.

People are getting used to better quality sound in their homes, cars and entertainment spaces. Their expectations have grown for better quality sound in retail, office and other background music spaces. Using premium quality audio systems can help increase sales through improved customer perceptions of the business’s products or services. It has now been well established that the quality of music in commercial spaces greatly impacts the customer’s perceptions of the products or services of the establishment. The dollar payback is substantial. High quality music also increases the friendliness and job satisfaction of the employees.

How do you put together a top-quality business music system? It may seem easier than it really is. We can't design systems the way we used to, using obsolete rules of thumb or just substituting a louder, low-quality sound for a quieter one and calling it a job well done.

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We have to approach each design analytically. The first step is to determine what the customer wants and expects. The questions you ask up front help you decide what kind of sound system to propose.

As you start thinking about the design, you need to translate the client's requirements into terms of coverage, adequate sound levels and bandwidth. Once these requirements are identified, you can start thinking about loudspeaker and component selection, speaker layout patterns and speaker density.

Unless it's a simple “point-and-shoot” system using a single mixer/amplifier (which is often a good choice), you need to be able to correctly tune the system after it's installed, ensuring proper settings and optimal performance.

This guide is a comprehensive set of design tools and extensive product information to help you understand the world of Business Audio and the broad range of offerings EV/Dynacord makes available to you to service this dynamic and fast growing market.

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EV Business Audio Product Guide

EVID Surface Mount Speaker Systems

The “ID” in EVID is for Innovative Design of high quality foreground/background speaker systems. EVID is not just another box, or trapezoidal system, EVID is different. It’s unique design concept combines style with acoustics for several benefits.

Innovation in Design

EVID is an aesthetic design using organic curves to fit into many decors and themes, it does not look like a traditional loudspeaker. This allows better integration for a more invisible sound system, while not distracting from a commercial or theme environment. In our desire to have them blend into the background we even eliminated an EV logo on the grille!

Innovation in Functionality

EVID’s mounting system provides greater range of aiming angles in both horizontal and vertical planes than other types. Coverage options are increased by the enclosure’s ability to be mounted either “vertically”, or “horizontally” while fitting into the environment without looking awkward. The bracket’s design compliments the enclosure while helping deterring theft. The grille follows the use of curvature with designed in weather resistance and a “hidden leash” for safety. All models all available in black or white, and can easily be painted the match the décor.

Model Summary

EVID 3.2 Most compact of the EVID series, the EVID 3.2 consists of dual 3” LF drivers with a .75” Ti (titanium) direct radiator, providing high-fidelity full-range sound over an extremely wide coverage area. The EVID 3.2t includes a transformer for 70V or 100V systems.

EVID 4.2 The EVID 4.2 uses dual 4” LF drivers and a 1” Ti /waveguide tweeter, able to deliver maximum sound level over a wide coverage area. The EVID 4.2t includes a multi-tap transformer for 70V or 100V line distribution systems.

EVID 6.2 The EVID 6.2 contains dual 6.5” woofers and a 1” Ti /waveguide tweeter, designed for high performance audio over a wide coverage area. The EVID 6.2t includes a multi-tap transformer for a 70V or 100V line distribution system.

EVID 12.1 The unique 12” dual voice coil woofer design and side/front angled port system allows for powerful low-frequency reinforcement from a flexible, compact wall or ceiling mount enclosure. The EVID 12.1 is an ideal addition to any EVID system, resulting in an amazing bottom end and fullness to any program material.

Full Range Audio Performance

EVID’s rounded enclosures coupled with dual low frequency transducers endows all three models with exceptional performance. The three dimensional elliptic baffle symmetrically locates the high frequency element in front of, and between the low frequency drivers. This careful shaping, location, and 10° splaying of the LF units provides coverage control by the resulting line array. Lobing is controlled by physically “shadowing” the LF transducers from each other over the bandwidth they would normally exhibit interference. The specially designed waveguide used in EVID 6.2 and 4.2 contributes to the controlled coverage without adding distortion. It’s size, shape and depth are optimized for crossover transition, linear response on and off axis, and even coverage over a 100° x 120°.

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Dual L.F. elements extend bandwidth and increase power handling. A sophisticated network uses 2nd order filters for smooth, low distortion response, and overload protection for all transducers.

“Outdoor Ready” Construction

All EVID models except the 12.1 subwoofer are weather resistant. EVID 3.2, 4.2, and 6.2 meet IEC529 rating IP-x4 and MilSpec 810 for water and dust resistance. The attention to detail even includes weep holes to evacuate condensation. Outdoor installations should include an overhang or other protection from direct exposure.

Built-in transformer versions (3.2T, 4.2T, 6.2T) feature high quality, low distortion transformers for 70v and 100v constant voltage applications. They provide the same superior sound as the nontransformer models.

The 12.1 subwoofer uses a 12” transducer with dual voice coils to produce low frequencies to below 40Hz. Its built-in filters reduce coloration while providing a high pass output for satellites that further increases their potential output capability. The dual voice coils fully utilize a stereo amplifier for maximum sound and allow filtered stereo outputs.

All models are also available in “decorator” white

EVID Ceiling Mount Speaker Systems

The EVID ceiling system product line provides premium-level performance at a value price. Their wide coverage and high SPL capability allows the use of fewer speakers, resulting in lower system cost than the tight-spaced layout that low power narrow coverage speakers require. The overall price differential of the EVID units to commodity type speakers is actually quite small when the assembly and component costs of these standard ceiling speakers is taken into consideration. The EVID units are fully assembled and no additional installation components are generally needed. An EVID system “pays for itself” very quickly. Locations with the highest sales per square foot are the ones who are most careful about sound quality, music programming, and customer satisfaction.

The EVID Ceiling Speaker Solution – Why is it Different?

The design goal of the EVID line of ceiling speakers was to provide effective solutions to give the contractor the best range of options when specifying a job. Since the acoustic and design requirements can vary considerably from job to job, a comprehensive range of choices is needed to be a full service supplier.

The EVID C8.2HC – Wide Spectrum Pattern Control in a Compact Package

High ceilings and reverberant rooms have long been the downfall of many ceiling based distributed sound installations. The inherent desire for wide dispersion in smaller acoustically dead spaces works against the use of ceiling speakers in larger rooms with reverberant characteristics and higher ceilings. Until now there has not been a cost effective solution that combines good quality full range audio with useful pattern control. Some ceiling products attempted to have pattern control at the high frequencies but this proved largely ineffective at the critical voice spectrum of the audio range. The result was a speaker that had the same poor intelligibility problems when used in reverberant room as conventional ceiling speakers.

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The real solution to the problem requires that directionality must exist for the critical mid frequencies as well as the upper end of the spectrum. For this to happen a new approach is needed. An effective answer to this problem is the EVID C8.2HC

The EVID C8.2HC is designed to provide directionality through the critical voice spectrum by employing a unique (patent pending) ported waveguide to the entire 8” driver. The resultant package is one that is compact, easy to install and provides far more intelligibility in reverberant or high ceiling environments than any other competitive model. The C8.2HC also is designed for higher power, high SPL applications with a 60watt 70/100v transformer standard. No other ceiling speaker available offers this unique solution.

The EVID 4.2, 8.2 and 8.2L – Full Range Models with Punch

EVID C4.2 Perfect for conventional rooms. It has excellent bandwidth in an esthetically very unobtrusive installation profile. It’s compact design fits in tight areas. Fully rated for use in air handling spaces. It’s 4” woofer and waveguide coupled titanium coated dome tweeter give smooth, wide frequency response. The enclosure is ported and tuned to provide surprising bass response in such a compact package. Features an easy 3-point mounting system for quick installations. Comes complete with mounting support ring and tile rails.

No additional accessories needed for most installations. The C4.2 would be ideal for most office spaces along with smaller restaurants and retail space where lower volume levels are used. It fits in close spaces and has a wide 130degree dispersion pattern for efficient coverage.

EVID C8.2 Unique in providing extremely high fidelity in a flush mount ceiling speaker. The secret is the optimally tuned enclosure coupled to a large 8” coaxial driver. The large enclosure ensures a full bottom end while the waveguide coupled tweeter gives uniform coverage for the high frequencies.

EVID C8.2L For tight fitting spaces the 8.2L is the ideal choice. It is very close to the performance of the C8.2 but with a shallow back can for an easier fit. The primary difference is at 50 Hz where the output level is 6db lower than the standard C8.2. In many installations however this is not noticeable and the performance of the C8.2L is still far beyond that of nearly any other 8” solution in the marketplace.

The 10.1 - Finally a Compact True Ceiling Subwoofer

So often ceiling systems had to rely on expensive surface mount subwoofers or inadequate ceiling/flush mount options. In designing the 10.1 we started with a mass optimized 10” woofer and a dual ported and tuned enclosure. The internal damping provides resonance free performance down to 45Hz. The system has a true crossover to eliminate any “localization” problems and provides the proper match to the full range EVID units.

The C10.1 is also an ideal companion to the EVID surface mount speakers. The C10.1 is an especially good match to the 3.2.

EV Raw Frame Ceiling Speakers

EV has provided a wide range of component ceiling speakers for many years. Contractors have come to expect value and performance for every EV model. Component ceiling speakers are often a good solution when specific requirements of the job dictate using an unconventional

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solution. Situations where cost, tight physical spaces, audio response, local building or fire codes, etc… come into play may require a unique EV component speaker solution. The EV raw frame ceiling speaker line consists of 6 models listed below to address nearly every situation:

Model	Size	Acoustic Design
205	4”	Single Cone
405	4”	Single Cone
209	8”	Single Cone
309	8”	Coaxial
409	8”	Coaxial
Pro-8A	8”	Coaxial

Typically these speakers are installed with a transformer, grille and back box to complete the installation. Often times raw frame speakers are used when the installation calls for very unusual space constraints or where there is a desire to hold costs down to the lowest possible figure.

The installation of raw frame ceiling speakers does require more effort than the tuned sealed enclosures such as the EVID series. Keep in mind that the audio performance of even the best component models generally do not equal any of the EVID sealed units because the enclosures are not tuned and matched to the drivers used.

EV Amplification Products

MA Series Mixer Amplifiers

The MA-1200 series of professional rack mount mixer/amplifiers are designed for larger BGM/paging and public address system installations where expandability and flexibility is the ticket. These new units are exceptional values, loaded with features and are easy to install in a variety of system designs.

The MA-1206 provides a powerful 60 watts of output power into 70v/100v or 8 ohm

loads. The MA-1212 has the same feature set but supplies twice the power at 120 watts. Both models have a variety of features to enable them to be customized to a wide range of background music and paging applications.

The units feature 12 separate input channels. Input channels 1-10 are designed to be used as either balanced or unbalanced low-Z microphone inputs or they can be switched to a line level signal. Phantom power is also available on any of the 10 inputs. A signal appearing at input 1 will automatically mute the other channels unless the mute function is defeated via a switch on the front panel. Inputs 11 and 12 are for auxiliary line-level sources such as tape or CD players. Mono or stereo signals may be applied to inputs 11 or 12. The left and right components of a stereo signal can be applied to the dual RCA phono jacks of these inputs and mixed together to drive the built-in monaural power amplifier. A rear panel paging input with gain control is provided for the paging output of a telephone system. An audio signal appearing at this input automatically mutes all other inputs.

A preamplifier output jack and power amplifier input jack permit the mixed output to be fed to an external signal processor (graphic EQ or compressor), and then returned to the built-in amplifier. The preamp output may be used to drive an additional power amp with its own set of speakers without interrupting the function of the built-in amplifier.

The speaker output is available at a barrier strip which includes terminals for driving low impedance loudspeaker loads, as well as 25, 70.7 or 100 volt distributed systems.

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Primary Features

•10 balanced mic or line inputs – All available with 24v phantom power!

•2 Auxiliary stereo summing inputs with 4 level sensitivity adjustment.

•60 or 120 watt models available

•Balanced line level output for adding additional power amplifiers.

•24 volt powered operation available for emergency power requirements

•Adjustable level telephone paging input.

•Independently adjustable low power monitor output.

•Integrated ‘rack ears” allow for rack mounting without additional accessories.

EV Commercial Power Amplifiers

The 1415, 1407 and the 7100 provide the extra power often needed for small to medium installations. All the units are convection cooled for extremely quiet operation. They are perfect companions to the MA series mixer amplifiers.

1407	Delivering 75 watts at 8ohms, the 1407 delivers clean power where a small
	number of additional speakers are needed. The 1407 also provides power at 70v
	or 100v as well. The chassis is 3 rack spaces high.
1415	Similar performance and size to the 1407, the 1415 provides 150 watts at 8
	ohms. And also delivers power into 70 or 100v lines.
7100	The 7100 is a 8ohm stereo amplifier in a compact 1 RU chassis. It delivers 75
	watts x 2 into 8 ohms.

CPS Series Power Amplifiers

CPS Series high-performance power amplifiers include innovative protection/safety features and unmatched dynamic range capability that exceeds the unique usage demands for fixedinstallation applications. The exceptional reliability and five-way power protection on all CPS models provides exceptional performance over the long haul.

The five-way protection system protects both the amplifier and the speaker from damage resulting from line shorts, thermal overload, power surges, signal degradation and signal overload. The unique Nonlinear Signal monitor gives the CPS Series its outstanding dynamic range and eliminates "hard-edged" clipping which can destroy most speaker systems. CPS Series amplifiers have burst-signal output-capability headroom in excess of 130 percent over their average continuous rating. CPS amps won’t run out of steam when they’re pushed hard!

70v-capable models feature Transformer Saturation Protection (TSP) that monitors the current demands of the transformer and can protect against overload and distortion.

All models are equipped with extremely quiet fans providing front-to-rear air circulation, guaranteeing trouble-free operation even in smaller power amplifier rack systems.

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Key CPS Amplifier Product Features

	Feature	Benefit
Protection and	Over-temperature	Ensures that the amplifier will never reach a critical
Safety	protection	operating temperature thus preventing any thermal
		damage. (includes a probe at the transformer too)
	DC protection	Eliminates amplifier damage in case of direct shorts
	Excessive Back-EMF	Eliminates amplifier damage from reverse current flow
	monitor	back into amplifier due to speaker failure
	Low ac line voltage	Prevents amplifier performance problems and
	monitor	potential speaker damage in case of AC line “Brown
		Outs”
	Front-to-Rear-Cooling	Draws "cold" air from outside the rack, fan is only
	(3-step fans)	active(audible) when amp's working heavy.
Audio	Nonlinear signal monitor	Limits amplifier distortion to under 1 percent to
Performance	(Dynamic Limiter)	eliminate “hard edged” clipping and provide higher
		average volume level.
	Power Supply design	Live music and voice signals contain very high peak
	specially made to deliver	transients compared to the much lower average signal
	high peak signals	level. The CPS series have Burst signal outputs of:
		CPS1: 640W, CPS2: 880W
Reliability	Quality from Design to	3 year warranty
	manufacturing

ProAnnounce Digital Routing System

Overview

This extraordinarily flexible and versatile system allows the configuration of either small or complex installations. Most functions are realized through software modules, which - when compared to conventional PA-systems – not only reduces the amount of cabling but also the costs. Next to extensive audio signal generating and distribution functions, the ProAnnounce system provides ample control functions. On one hand, these functions offer the possibility to register and rate external events, as well as to control different external components, on the other hand. Boolean operations and relations to the internal state of the system can be programmed as well.

The digital ProAnnounce manager DPM 4000 represents the central unit of the system. It is used to control and monitor all connected components via several serial interfaces.

The kind and amount of connected audio sound sources, amplifiers, and relay board assemblies are extremely variable. This allows configuring the system to basically match any requirement. The system is capable of managing up to 16 paging stations and up to 100 output lines. More than 150 control inputs and outputs are available for controlling and monitoring purposes providing the possibility to generate and manage logic levels and analog levels as well.

Configuration and documentation of a ProAnnounce system installation is established through the use of the ProAnnounce Designer software – a comfortable graphical user interface that runs on a PC under Windows. This allows changing the system’s setup at any time to meet new requirements, without the need to alter the actual installation. The PC has to be connected to the system only when loading or changing its configuration. During normal operation, PC-interaction is not necessary. Anyway, in most cases the permanent connection of a computer bears benefits, like displaying detailed status reports or the printing of protocols. It also offers the possibility for remote diagnosis and remote maintenance via modem.

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