Harbor Springs Sound System Specs.pdf

021025 Sound Reinforcement System 274116.63-1

DD1505727 1500HD

SECTION 274116.63

SOUND REINFORCEMENT SYSTEM

PART 1 GENERAL

1.01 SUMMARY

A. This section includes all professional services, transportation services, supervision, coordination, etc., necessary to complete the installation of a high quality Audio System as specified. “Audio System” references the system and “Audio System Installer” references the installer. The Audio System Installer is responsible for sizing the sound cabinet, amplifiers, patch panels, transformers, etc. to ensure a complete and properly operating system in accordance with the performance criteria set forth in this specification. All installed equipment must be new and in unused condition. It is the intent of the specifications to indicate the quality, configuration, and performance of the Audio System. The Audio System installation includes the following:

1. Point Source Sound System

2. Audio Control System

3. Cables, connectors, plates, and wiring

4. All necessary design, fabrication, processing and amplification equipment, and installation for a complete sound system as described B. The section also includes:

1. Scope of work

2. Verification of dimensions and conditions at the job site

3. Preparation of submittal information

4. Installation in accordance with the contract documents, manufacturers recommendations, and all applicable code requirements

5. Instruction of operating personnel: provision of manuals

6. Maintenance services and warranty

1.02 REFERENCES

A. Audio System Design and Installation, G.H. Philip Giddings, 1990 B. Digital Audio Engineering - Serial Transmission Format for Two-Channel Linearly

Represented Digital Audio Data, Recommended Practice (AES-3), ANSI S4.40, 1992 C. Handbook for Sound Engineers (Third Edition) Glen M. Ballou, 2002 D. Loudspeaker Components Used in Professional Audio and Sound Reinforcement, ANSI

S4.26, 1984 (R1992) E. Sound System Engineering (Third Edition), Don Davis and Eugene Patronis, Jr., 2006 F. Standard for Safety for Audio, Video, and Similar Electronic Apparatus – Safety Requirements: IEC

60065, UL 60065, EN 60065, and CAN/CSA C22.2 #60065 G. Information Technology Equipment-Radio Disturbance Characteristics: EN 55022:2010 / AC:2011, Class A / CISPR 22 (ed.5); am1 H. Electromagnetic Compatibility: EN 61000-3-2:2006 +A1:2009 +A2:2009 / IEC 61000-3-2 (ed.3);

am1, am2 I. Electromagnetic Compatibility: EN 61000-3-3:2008 / IEC 61000-3-3 (ed.2) J. Information Technology Equipment – Immunity Characteristics: EN 55024:2010 / CISPR 24 (ed.1);

am1, am2; 47 CFR, Part 15:2010, §15.107 and §15.109, Class A; ICES-003, Issue 4:2004 K. National Electric Code

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1.03 SYSTEM DESCRIPTION

A. The following is intended to provide an overview of the design concepts and is not an exhaustive description of the Audio System.

B. The Audio System consists of a main speaker cluster that may be integrated with a display structure. It is composed of horn-loaded, three-way, full-range tri-amplified design with built-in signal processing.

C. The Audio System includes speaker amplification and signal processing components that are 100% self-contained within the control enclosure. All electronic components are to be properly housed and shielded from the elements to ensure long life. Fiber optic cable utilized to interconnect the control rack at the audio mix location to the control enclosure. Design the system to ensure that all processing and amplification equipment meets project and manufacturer’s recommendations for allowed headroom. The services of the Audio System Installer include all necessary acoustical, electrical, mechanical, and structural engineering to incorporate a complete sound system.

D. The Audio System has remote diagnostics capabilities including – temperature monitoring, amplifier status, and speaker coil impedance.

E. The audio system will incorporate an analog back-up system. In the event of a failure in the digital audio system, the operator will be able to engage a single switch to bypass all digital equipment to deliver analog audio to the power amplifiers.

F. Scope of work includes the following: fiber optic cable between the press box (designated by owner) and the control enclosure supplied by the Audio System Installer, and AC power feeds to the control enclosure and control equipment. A licensed electrician must perform all high voltage electrical work.

G. All structural components provided by the Audio System Installer must be certified by a structural engineer. Documentation of engineering reviews and structural certification of the speaker cabinet structures must be provided. Structural steel accommodations for incorporating the speaker cabinet into a complete display structure will be the responsibility of the Audio System Installer. The internal structure of the cabinet is constructed to minimize structural vibrations induced by the speaker components. Access doors on the back of the cabinet allow for easy access to internal components. The mesh on the front of the cabinet is bolted into place.

H. Provide the front of the main speaker cabinet that consists of an extruded aluminum grille frame covered with signage grade, vinyl mesh material. The vinyl material must be acoustically transparent and provide the capability of creating a speaker grille covering with custom printed graphics. The specified graphic art is printed using a large format, photographic quality, color printing process.

I. Provide external surfaces of the cabinets that are skinned with powder-coated black aluminum. Provide exterior paint which is automotive grade, resistant to fading, peeling or chipping.

J. Loudspeaker

1. Safe, secure and permanent manner in their operating position.

2. The aiming direction of the mid/high loudspeakers must be adjustable by 15 degrees vertically.

3. Rigging, mounting and support systems for loudspeakers reviewed and certified by a registered professional engineer.

4. Structural support members to have an appropriate safety factor (determined by a structural engineer). All fasteners to be graded and certified for use in the intended applications.

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5. All loudspeakers rigidly supported inside of the sound cabinet. Wire rope and/or chain suspension of loudspeaker components inside the sound cabinet is unacceptable.

K. The Audio System is to achieve the following performance standards: continuous output level of 137 dBA at 1 meter with sufficient headroom to allow for peaks. The frequency response of the sound system to be at least 50 Hz to 14 kHz, -10 dB at 1 meter.

L. The Audio System utilizes digital signal processing for all applications. All digital signal processing is contained within each amplifier. Each amplifier’s digital signal processor will provide the following signal processing capability: gain control, minimum four band filtering or equalization, delay, crossover, and limiting.

1.04 SUBMITTALS

A. Submit the following documents with bid proposal. Failure to provide a complete set of submittals will result in disqualification. Provide shop drawings and submittal data containing sufficient information to describe the work to be performed. Prepare drawings at an appropriate scale. Submit shop drawing information at one time. Provide the following information, but not necessarily limited to:

1. System description

2. Complete system equipment list, with individual specification sheets for each piece of equipment

3. Functional system block diagram showing all major equipment and signal flow

4. Basic speaker cabinet design drawings consisting of the cabinets’ overall dimensions, cabinet integration with a display structure and estimated weight of entire system with all equipment installed

5. Speaker cluster drawings showing all speakers in their installed position and estimated electrical draw of the entire system

6. Proof of performance illustrations as generated by an acoustical CAD modeling program (EASE or equivalent). Illustrations to include direct field sound pressure level performance throughout the stadium at 125 Hz, 250 Hz, 500 Hz, 1,000 Hz, 2,000 Hz and 4,000 Hz.

1.05 DELIVERY, STORAGE AND HANDLING

A. The Audio System Installer will be responsible for transporting all related audio equipment to the job site. Upon installation, audio equipment becomes the responsibility of the owner.

B. The Audio System Installer will be responsible for audio equipment once it is received at the job site. In addition, Audio System Installer will be responsible for unloading the shipment truck, providing safe storage of audio equipment, installation of audio equipment and all necessary welding of structure.

C. All transportation expenses of equipment to the job site will be the responsibility of the Audio System Installer.

1.06 PROJECT CONDITIONS

A. Audio System Installer desiring to submit a proposal are responsible for acquiring, from the owner, any plans or documentation pertaining to the audio system installation and are encouraged to perform a pre-bid site survey.

B. Confirm conditions on the jobsite pertinent to this work. Give notice to the owner in writing of discrepancies, conflict, or omissions promptly upon discovery.

1.07 QUALITY ASSURANCE

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A. Source Limitations: Obtain each type of audio equipment through one source from a single manufacturer.

B. ETL listed and conform to IEC 60065, UL 60065 and EN 60065 C. Certified to CSA C22.2 #60065 D. Carries the ETL US, ETL Canada, ETL EU, and CE marks E. Manufacturer’s qualifications: A minimum of five (5) years’ experience with the specified types of products and installation.

F. Installer’s qualification: Business familiar in the installation of systems similar in complexity to those essential for this project; and fulfillment of the following:

1. The primary business of contractor shall be in the installation of sound and video systems.

2. At least five (5) years’ experience with systems of the specified types and products included.

3. Experience with comparable scale sound reinforcement projects within the last three (3) years.

4. Retain a fully staffed and equipped service facility with fulltime field technicians.

5. Be a franchised dealer and approved service facility for all amplifiers, digital and analog signal processing equipment and loudspeaker products specified or proposed; if not, supply detailed description of how warranty service on these items will be obtained, and if any manufacturer’s warranties will become void.

6. Installer to be factory educated in the installation and maintenance of any digital signal processed based control systems.

7. At the request of the owner, the Installer must demonstrate having:

Sufficient plant and equipment to complete the work within the agreed timetable Sufficient staff with commensurate technical experience Appropriate financial status to meet the obligations of the work Capability to provide performance bonding

1.08 WARRANTY

A. Provide a complete system parts warranty for a minimum period of one year after completion and acceptance of audio system.

B. This warranty will not void specific warranties issued by manufacturers for greater periods of time. Nor will it void any rights guaranteed to the owner by law.

C. The Audio System Installer must provide the owner an opportunity to purchase a preventive maintenance inspection agreement or full service agreement. The minimum term of any maintenance or service agreement consists of one year.

D. Warranty replacement and service of equipment will not apply to any owner-furnished equipment.

PART 2 PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

A. To establish the minimum functional, aesthetic and quality standards, products and product series of the manufacturers listed below are required.

B. Substitutions: Products of other manufacturers are acceptable provided they meet the performance and reliability standards of the recommended equipment. Any substitution to this list must be submitted and approved in writing 10 days prior to the bid date.

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2.02 GENERAL

A. Regardless of the length or completeness of the descriptions below, each device shall meet published manufacturers’ specifications.

B. Equipment and materials must be new and conform to applicable UL or ANSI provision.

C. Product quantity is as required. If a quantity is given, Audio System Installer shall provide at least the given amount.

2.03 MAIN SPEAKER CLUSTER

A. Engineered speaker cluster consisting of self-powered three-way active devices

1. Frequency response (-10 dB @ 1 m): 50 Hz to 14 kHz

2. Max Continuous SPL (@ 1 m): 137 dBA

3. Overall cluster dispersion: 30 V X 120 H

4. Weather treatment: polyurea coating

5. Acceptable products:

Daktronics Sportsound® 1500HD System (@ 1)

2.04 AMPLIFIER RACK

A. Amplifier

1. 4 Channel; 700 W per channel

2. Dante™ input, DSP and monitoring for each speaker set

3. Frequency response: 20 Hz to 20 kHz +/-0.5 dB

4. Signal to noise: 105 dB (20 Hz to 20 kHz referenced to 8 Ω)

5. THD+N: 0.1% (20 Hz to 20 kHz)

6. Acceptable products:

LEA Connect Series 704D @ 2

B. Media Converter/Network Switch

1. 4-Port 10/100/1000T 802.3at PoE

2. 4-Port 10/100/1000T

3. 2-Port 100/1000X SFP

4. Managed switch with QOS and IGMP snooping

5. Acceptable products:

Planet Technology IGS-4215-4P4T2S and MGB-TSX2

2.05 FIBER CONVERSION BOX

A. Media Converter/Network Switch

1. 4-Port 10/100/1000T 802.3at PoE

2. 4-Port 10/100/1000T

3. 2-Port 100/1000X SFP

4. Managed switch with QOS and IGMP snooping

5. Acceptable products:

Planet Technology IGS-4215-4P4T2S and MGB-TSX2

B. Network Router

1. 4-Port Gigabit LAN

2. 1-Port Gigabit WAN

3. Acceptable products:

Mikrotik hEX S

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C. Dante™ Injector

1. Two channel analog input

2. POE powered two-channel analog output

3. Dante™ networking protocol

4. Frequency response: 20 Hz to 22 KHz +/-0.25 dB

5. Input impedance: >20k

6. Acceptable products:

Glensound AoIP22

2.01 AUDIO CONTROL SYSTEM

A. Equipment Rack

1. 4RU vertical rackmount

2. Rear Access Panel

3. Acceptable product:

SKB Shallow Roto Rack / 1SKB-R4S

B. Audio Mixer

1. Four mic inputs with bass cut for vocal microphones and phantom power

2. Two mic/line (XLR/TRS) switchable inputs

3. Two stereo RCA inputs

4. One 1/8" music input

5. Individual input channel metering and output meters

6. Two outputs, XLR and 1/4", each with selectable ducking and limiting functions

7. Fire Alarm interface, Normally Open (NO) or Normally Closed (NC), selectable

8. Acceptable products:

Daktronics Multimedia Mixer

C. Audio Signal Switch

1. Style: 2 Position

2. Operator action: maintained

3. 1 RU standard rack space, black

4. Laser etched text

Daktronics Signal Switch

D. Laptop Interface

1. 1/8" (3.5 mm) male input

2. Balanced XLR male output

3. Adjustable output volume control

4. Acceptable products:

LTIBLOX Laptop Interface

E. Push-to-Talk Mixer

1. One Balanced Input (XLR) with 24V phantom power

2. One Unbalanced Stereo Input (TRS)

3. One Balanced Output (XLR)

4. 1/4" Headphone Output (TRS)

5. Bluetooth® wireless music input

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6. Momentary and continuous audio output modes

7. 4-segment LED metering with Overload (OL) indication

8. Variable bass cut

9. Auto music reduction (ducking)

10. Output limiting

11. Software switchable Line to Mic Pad

12. Individual source level control

13. Acceptable product:

Daktronics SSR-DM2

F. Handheld Vocal Microphone

1. Dynamic microphone with unidirectional (cardioid) polar pattern

2. Frequency response: 50 Hz to 15 kHz

Shure SM58

G. Dynamic Headphones

1. Neodymium magnet

2. Gold 1/4" and 1/8" plug

Sony MDR7506

H. Single-Muff Headset

1. Neodymium magnet

2. Cardioid condenser microphone

Beyerdynamic DT 287

I. Wireless Microphone Receiver

1. 1/2 RU unit

2. 24 bit digital audio

3. XLR balanced mic/line outputs

4. RF Sensitivity: −97 dBm at 10−5 BER

5. Audio Frequency Response: 20 Hz to 20 kHz, +/- 1 dB

6. Audio Dynamic Range: > 120 dB (A)

7. Total Harmonic Distortion: < 0.1%

8. Acceptable products:

Electro-Voice RE3-RX

J. Wireless Handheld Transmitter

1. Microphone element: Cardioid, Dynamic Vocal Microphone

2. Working Range: 100 m (328')

3. Battery life: 9+ hours

4. RF Output: Selectable 1 mW or 10 mW

Electro-Voice RE3-HHT76

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K. Wireless Bodypack Transmitter

1. Connector: 4-pin male mini connector (TA4M) for microphone or mute switch

2. Working Range: 100 m (328')

3. Battery life: 9+ hours

4. RF output: Selectable 1 mW or 10 mW

Electro-Voice RE3-BPT

2.02 CABLE AND CONTROL WIRING

A. All cables must be installed in conduit or closed raceway areas. Use plenum cable as necessary. Exposed cable is not acceptable. Cable specifications are as follows:

1. Multi-mode fiber optic cable from audio control to sound cabinet

2. Microphone level cables: No. 22 shielded jacketed - Belden 9451 with black jacket

PART 3 EXECUTION

3.01 GENERAL

A. Coordinate work with other trades to prevent delays in the construction schedule.

B. Verify dimensions and location of equipment to be mounted.

3.02 INSTALLATION

A. Mount equipment and enclosures square and plumb. Permanently installed equipment to be held firmly and safely in place. Loudspeaker mounting systems and sound cabinet mounting systems to be approved by a structural engineer. All mounting brackets must be approved by a structural engineer.

3.03 FIELD QUALITY CONTROL

A. Upon completion of installation and initial test adjustments, the audio system installer will conduct a performance evaluation in the presence of the owner or the owner’s representative (owner’s option). The audio system installer will notify the owner or the installer’s representative of the testing schedule.

END OF SECTION