Attachment 1 - 2021 INAUGURAL CEREMONY SOUND SYSTEM SPECIFICATIONS.pdf

A/O 11/15/19 12:18 PM

Project: 2021 Inauguration Page 1 of 16

BALTZELL AUDIO DESIGN

13737 Weddington St., Sherman Oaks, CA 91401 Tel: (818) 903-6319 Email: patrickbaltzell@gmail.com

2021 INAUGURAL CEREMONY SOUND SYSTEM

SOUND SYSTEM SPECIFICATION 1.1

I. GENERAL

The vendor awarded this contract shall provide maintenance, supervision, coordination, materials, tools, test equipment and transportation services necessary to complete the installation and maintenance of the sound systems as described in these specifications and the associated drawings. The systems shall be delivered and installed to meet the performance requirement as specified in this document.

II. INSTALLATION

A. CONFORM TO CODES

1. National Fire Protection Association (N.F.P.A.).

2. National Electrical Code (N.E.C.).

3. American National Safety Institute (A.N.S.I.).

4. Electronics Industries Association (E.I.A.).

5. Sound System Engineering, Davis and Davis, Howard W. Sams, 1987.

6. ANSI S4.48-1992.

7. EIA Standard RS-160.

8. EIA Standard RS-219.

B. GENERAL

1. Coordinate work with other trades to avoid causing delays in construction schedule.

2. Mount equipment and enclosures plumb and square. Design equipment to support loads with a safety factor of at least three to one (five to one for loudspeaker mountings).

3. The process of testing the System may necessitate moving and adjusting certain component parts – e.g., loudspeakers. Provide for +/-5 degrees of adjustability from initial aiming angle and perform such adjustments without claim for additional payment.

C. CONTRACTOR TESTS, SETUPS AND ADJUSTMENTS

1. All electronic devices must be properly grounded.

2. Powered devices must have AC power from a designated circuit and hot, neutral, and ground conductors shall be connected correctly.

3. All cable is dressed, routed, and labeled; connections are consistent with regard to polarity.

mailto:patrickbaltzell@gmail.com

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D. TECHNICAL EXPERTISE

1. Product Experience – Shop personnel must have a minimum of three years experience with the installation and service of the specified types of equipment.

a) Adequate staff with commensurate technical experience. The shop personnel assigned to the fabrication and assembly of the materials, cabinets, cabling, panels and equipment racks for these sound systems must have a thorough understanding of the application, service and system interface parameters of all the products used in the installation of the sound systems as specified.

b) Experience in the installation of complete sound systems equal in complexity to those required for this project including the following:

(1) Experience with large-scale sound reinforcement project within the last five years.

(2) Experience with installation projects including line array systems and 70 volt distributed systems.

(3) Experience with radio frequency equipment including RF hearing impaired systems.

(4) Experience with fiber optic audio transmission systems.

E. SOUND SYSTEM MAINTENANCE

1. Vendor must be a franchised dealer and authorized service facility for the major products specified.

F. PROJECT CONDITIONS

1. The Drawings diagrammatically show cables, conduit, wiring, and arrangements of equipment fitting the space available without interference. If conditions exist at the job site which make it impossible to install work as shown, recommend solutions and/or submit drawings to the Architect for approval, showing how the work may be installed.

G. WARRANTY

1. Installer shall warrant equipment to be free of defects in materials and workmanship for the duration of the event. Defects occurring shall be rectified by replacement or repair within 24 hours.

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H. COMPLETION ASSURANCE

1. The Vendor shall provide adequate shop facilities, fabrication and assembly equipment as well as on-site labor to complete the installation within the specified schedule.

2. The Vendor shall have suitable financial status to purchase the custom audio equipment required to meet the performance specification and maintenance requirement described in this document.

I. PRIMARY CONTRACTOR AND SUB CONTRACTOR RESPONSIBILITY

If a portion of this scope of work is sub contracted to another vendor the “Primary Contractor” awarded the contract shall be liable for the work and materials provided by the sub-contracted company. The “Primary Sound System Contractor” shall:

1. Furnish the equipment to meet the sound system specification.

2. Fabricate the equipment racks panels and sub assemblies as required.

3. Supervise audio signal distribution and termination for each piece of equipment as required with regard to proper grounding and signal isolation.

III. SOUND SYSTEM DESCRIPTION

A. GENERAL

The sound system is designed to provide high level reinforcement for speech and entertainment. The design allows for individual sound systems to provide coverage for specific audience seating areas. These areas of coverage are:

1. Primary System – West Lawn Audience Mid & Rear Seating

Zones 3 and 4 (see drawing IC-21 2.1)

2. Primary System – West Lawn Side standing audience Zone 5 Sides (see drawing IC-21 2.1)

3. Primary System Outer Fill – West Lawn Front Seating Zone 2 (see drawing IC-21 2.1)

4. Primary System Inner Fill – Front VIP Seating

Zone 1 (see drawing IC-21 2.1, IC-21 3.1 & IC-21 4.1)

5. Delay System 1 – First Street & Northwest Standee Area

(see drawing IC-21 2.1 & IC-21 6.1 & IC-21 8.1)

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6. Delay System 2 – West of 1st Street and Reflecting Pool Standee Area A & B (see drawing IC-21 6.1 & IC-21 8.1)

7. Congressional Seating Areas – Terrace Level

(see drawing IC-21 3.1 & IC-21 5.1)

8. Upper Congressional Seating / Choir Seating

(see drawing IC-21 3.1 & IC-21 16.1)

B. PRIMARY SPEAKER SYSTEM (ZONE 3 & 4)

1. The primary speaker system shall consist of two speaker clusters flown inside speaker towers “A” and “B”. Refer to drawing IC-21 2.1 for exact location. Each cluster shall contain (14) of SPEAKER TYPE 1.

The Primary System provides coverage for the mid and rear seating areas of the West Lawn. The amplifiers for these speakers shall be located in Speaker Tower A & B. Refer to drawing IC-21 7.1 for tower/cluster build details. Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 1 – 3-Way Full Range Line Array Drivers: (2) 2 inch compression driver mounted to wave guide

(4) 7.5 inch midrange driver

(2) 15 inch low frequency driver Frequency Response: +/-3dB 50Hz – 18kHz Sensitivity: LF - 102dB w/1 watt @ 1 meter MF – 109dB w/1 watt @ 1 meter HF – 114dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 90 degrees, V - 5 degrees Array Capability: Elements couple together to form vertical line array Acceptable Products: L’ Acoustics K1 / K2

JBL VTX A12 / VTX V25

Meyer Milo / Leo Approved Equal

C. PRIMARY SPEAKER SYSTEM (ZONE 5 SIDE)

1. The primary speaker system Zone 5 side shall consist of four speaker clusters flown inside speaker towers “S1” – “S4”. Refer to drawing IC- 21 2.1 for exact location. Speaker clusters S1 and S2 shall contain (4) SPEAKER TYPE 1. Speaker clusters “S3” and “S4” shall contain (5) SPEAKER TYPE 1. The Primary System Zone 5 side provides coverage for the overflow standing attendees on the far left and right sides of the primary seated audience. The amplifiers for these speakers shall be located in Speaker Towers S1, S2, S3 and S4. Refer

Project: 2021 Inauguration Page 5 of 16 to drawing IC-21 9.1 for tower/cluster build details. Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 1 – 3-Way Full Range Line Array Drivers: (2) 2 inch compression driver mounted to wave guide

(4) 7.5 inch midrange driver

(2) 15 inch low frequency driver Frequency Response: +/-3dB 50Hz – 18kHz Sensitivity: LF - 102dB w/1 watt @ 1 meter MF – 109dB w/1 watt @ 1 meter HF – 114dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 90 degrees, V - 5 degrees Array Capability: Elements couple together to form vertical line array Acceptable Products: L’ Acoustics K1 / K2

JBL VTX A12 / VTX V25

Meyer Milo / Leo

D. PRIMARY SYSTEM – INNER FILL

1. The Primary System Inner Fill shall consist of four of SPEAKER TYPE 3 installed into the north/south presidential stand. These speakers shall be installed on shelves built into this wall structure by the construction contractor. The fiberglass insulation and the custom speaker grills / frames shall be provided by the Sound Vendor. Refer to drawing IC-21 4.1 for construction details. The amplifiers for these speakers shall be located in Speaker Tower A. Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 3 – 2-Way Full Range Drivers: (1) 1 inch compression driver

(1) 12 inch low frequency driver

Frequency Response: +/-3dB 90Hz – 18kHz Sensitivity: LF - 100dB w/1 watt @ 1 meter HF – 106dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 90 degrees, V - 40 degrees

Array Capability: None

Acceptable Products: EAW RS153

Meyer UPA1A EV Deltamax 1152

JBL AM7212

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E. DELAY SYSTEM 1

1. Delay System 1 shall be three monaural speaker towers to provide additional coverage for the audience on the west side of First Street and the Northwest Standee area. Two of the towers shall have three of SPEAKER TYPE 2 and one of the towers shall have four of SPEAKER TYPE 1. The power amplifiers for these speakers shall be located inside the delay scaffold towers. Refer to drawing IC-21

2.1 & IC-21 6.1 for locations. Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 1 – 3-Way Full Range Line Array Drivers: (2) 2 inch compression driver mounted to wave guide

(4) 7.5 inch midrange driver

(2) 15 inch low frequency driver

Frequency Response: +/-3dB 50Hz – 18kHz Sensitivity: LF - 102dB w/1 watt @ 1 meter MF – 109dB w/1 watt @ 1 meter HF – 114dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 90 degrees, V - 5 degrees

Array Capability: Elements couple together to form vertical line array Acceptable Products: L’ Acoustics K1 / K2

JBL VTX A12 / VTX V25

Meyer Milo / Leo Approved Equal

3. Specifications: SPEAKER TYPE 2 – 3-Way Full Range Drivers: (1) 2 inch compression driver mounted to wave guide

(1) 10 inch midrange driver

(1) 15 inch low frequency driver

Frequency Response: +/-3dB 80Hz – 20kHz Sensitivity: LF - 102dB w/1 watt @ 1 meter MF – 107dB w/1 watt @ 1 meter HF – 112dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 60 degrees, V - 40 degrees

Array Capability: Elements couple together horizontally Acceptable Products: EAW RS153

JBL AM7315

Meyer MSL4

F. DELAY SYSTEM 2

1. Delay System 2 shall be six monaural speaker towers to provide additional coverage for the audience area west of Third Street for Standee Areas A and B. Four of these towers shall have four of SPEAKER TYPE 1 and two of the towers shall have three of SPEAKER TYPE 2. The power amplifiers for these speakers shall be located inside the delay scaffold towers. Refer to drawing IC-21

6.1 for locations and IC-21 8.1 for tower/cluster build details.

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Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 1 – 3-Way Full Range Line Array Drivers: (2) 2 inch compression driver mounted to wave guide

(4) 7.5 inch midrange driver

(2) 15 inch low frequency driver

Frequency Response: +/-3dB 50Hz – 18kHz Sensitivity: LF - 102dB w/1 watt @ 1 meter MF – 109dB w/1 watt @ 1 meter HF – 114dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 90 degrees, V - 5 degrees

Array Capability: Elements couple together to form vertical line array Acceptable Products: L’ Acoustics VDOSC / K1

JBL VTX A12 / VTX V25

Meyer Milo / Leo Approved Equal

3. Specifications: SPEAKER TYPE 2 – 3-Way Full Range Drivers: (1) 2 inch compression driver mounted to wave guide

(1) 10 inch midrange driver

(1) 15 inch low frequency driver

Frequency Response: +/-3dB 80Hz – 20kHz

Sensitivity: LF - 102dB w/1 watt @ 1 meter MF – 107dB w/1 watt @ 1 meter HF – 112dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 60 degrees, V - 40 degrees

Array Capability: Elements couple together horizontally Acceptable Products: EAW RS153

JBL AM7315

Meyer MSL4 Approved Equal

G. CONGRESSIONAL SEATING SYSTEM

1. The Congressional Seating System shall provide coverage to the Senate and House seating areas on the presidential platform. This shall be a low level distributed 70 Volt system installed under the seats. (106) of the SPEAKER TYPE 5 shall be wired under the constructed stage floor. Refer to drawing IC-21 5.1. Four of the SPEAKER TYPE 5 shall be installed under the stage buildout for the White House Communications (WHCA) technicians. Additionally, there shall be (12) SPEAKER TYPE 6 installed on the top of the Capitol balustrade with ½” plywood covers. The amplifiers for these speakers shall be located in Speaker Towers A and B. Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 5 – 2-Way Low Profile 70 Volt Drivers: (1) .75 inch tweeter

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(1) 4 inch low frequency driver Frequency Response: +/-3dB 150Hz – 15kHz Sensitivity: 92dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 90 degrees, V - 40 degrees

Array Capability: None Transformer: 70 Volt w/ 7.5w, 15w & 30w taps Acceptable Products: JBL Control 25T

JBL Control 28T Approved Equal

3. Specifications: SPEAKER TYPE 6 – Passive 2-Way Drivers: (1) 1 inch compression driver mounted to wave guide

(2) 8 inch low frequency driver

Frequency Response: +/-3dB 90Hz – 19kHz Sensitivity: 92dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 120 degrees, V - 120 degrees

Array Capability: None Acceptable Products: EAW JF80

JBL AC15

JBL AC26

JBL MS28

H. UPPER CONGRESSIONAL SEATING / CHOIR BLEACHERS

1. This system shall provide coverage to the seating areas behind and to the left and right of the stage area. This shall be a distributed medium-level system utilizing (9) of SPEAKER TYPE 6 installed with small ratchet straps on existing cross aisle railings. The upper plaza bleacher area is covered with (8) of SPEAKER TYPE 4 on custom 2” poles that raise speakers to 8’ from bleacher deck. The amplifiers for these speakers shall be located in Speaker Tower B. Refer to drawing IC 21 14.1 & IC-21 16.1. Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 4- Passive 2-way Drivers: (1) 1 inch compression driver

(1) 12 inch woofers

Frequency Response: +/-3dB 100Hz – 15kHz Sensitivity: 95dB w/1 watt @ 1 meter Acceptable Product: JBL VRX932LA-1

JBL PRX800

Meyer UPA1A

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I. MARINE BAND FOLDBACK SYSTEM

1. This system shall provide foldback coverage to the Marine Band conductor. This system shall be (1) SPEAKER TYPE 7 wedge monitor. The amplifiers for these speakers shall be located in Speaker Tower A. Refer to drawing IC-21 13.1. Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 7- 2-way wedge monitor Drivers: (1) 1 inch compression driver

(1) 12 inch woofer

Frequency Response: +/-3dB 80Hz – 18kHz Sensitivity: 102dB w/1 watt @ 1 meter Acceptable Product: MSI Hex 12 Clair Brothers 12AM Meyer UM1

EAW 200

JBL SRX 712M

Approved Equal

J. STAGE FOLDBACK SYSTEM

1. This system shall provide foldback coverage to the stage/podium area.

This system shall one SPEAKER TYPE 7 wedge monitor placed on stage left side of the podium, and one SPEAKER TYPE 5 installed inside the podium. The amplifiers for these speakers shall be located in Speaker Tower A. Refer to drawings IC-21 16.1. Speaker connections shall be weatherproof and rated for outdoor use.

2. Specifications: SPEAKER TYPE 7- 2-way wedge monitor Drivers: (1) 1 inch compression driver

(1) 12 inch woofer

Frequency Response: +/-3dB 80Hz – 18kHz Sensitivity: 102dB w/1 watt @ 1 meter Acceptable Product: MSI Hex 12 Clair Brothers 12AM Meyer UM1

JBL SRX 712M

Approved Equal

3. Specifications: SPEAKER TYPE 5 – 2-Way Low Profile 70 Volt Drivers: (1) .75 inch tweeter

(1) 4 inch low frequency driver

Frequency Response: +/-3dB 150Hz – 15kHz Sensitivity: 92dB w/1 watt @ 1 meter Nominal Coverage Pattern: H - 90 degrees, V - 40 degrees

Array Capability: None Transformer: 70 Volt w/ 7.5w, 15w & 30w taps Acceptable Products: JBL Control 25T

JBL Control 28T

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K. MEDIA SIGNAL DISTRIBUTION

1. This system of signal distribution shall consist of (4) press mult output boxes described below. Distribution amplifiers located at the house PA mixing position shall buffer these feeds. The final location of these shall be determined on site. All connections shall be weatherproof and rated for outdoor use. The individual feeds generated at the house mix position shall be as follows:

Dialogue ISO Stereo Program Left Stereo Program Right Composite Mono Program

2. Specifications: Press mults

Input: Transformer balanced Outputs: Transformer Balanced Isolation: Minimum 50dB from output to output

3. Specifications: Audio Distribution Amplifier Input: Electronically balanced Outputs: (6) Electronically balanced +4dBm line level Isolation: Minimum 60dB from output to output Acceptable Product: Aphex 120A

L. COMMUNICATIONS

1. The communications system shall be three-channel with the power supply located in Speaker Tower A. The belt packs and speaker stations shall be two channel with the capability of injecting program audio. The final configuration and location of headsets shall be determined on site. Refer to drawing IC21 12.1 for locations and circuit configuration. All connections shall be weatherproof and rated for outdoor use.

4. Specifications:

Channels: (4) Ch1 – Production AFIC (Show Call channel) Ch2 – Production JCCIC Ch3 – Audio Ch4 – Hearing Impaired Signer Iso Beltpacks: (24) 2-Channel w/ program input Speaker Stations: (3) 2-Channel Power Supplies: (1) PS 31 Acceptable Product: RTS Clearcom

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M. VIDEO SYSTEM

1. Contractor shall provide a closed circuit video monitor system including one camera and six 13-inch video monitors. All cabling and video DA’s required to make this system work shall be provided. This system shall provide a closed circuit image of the conductor for the performer at the podium as well as the choir(s) located in the plaza level bleachers. Refer to drawing IC-21 12.1. All connections shall be weatherproof and rated for outdoor use.

N. POWER DISTRIBUTION

1. General Distribution - The Capitol Architect shall provide electrical power service to Speaker Towers A and B. The termination shall be a disconnect panel at each location. All isolation transformers, load centers and power cabling required to make the sound system operational not specified as being provided by the Capitol Architect Electrical Contractor on drawing IC-21 10.1 shall be provided by the Sound Contractor. All power cabling, disconnects, panels, load centers, junction boxes etc. shall be weatherproof and specified for outdoor use. Refer to drawing IC-21 6.1 and IC-21 10.1 for power distribution specifications. Isolation Transformers #1 & #2 provided by the Sound Contactor shall be installed on January 3rd, 2021.

Connections to the Capitol electrical service from Vault B for the Primary Sound System shall be completed by January 6th, 2021.

These services shall be metered and confirmed by January 6th, 2021.

2. Back-up UPS Truck - A backup UPS truck for the Primary Sound System shall be provided by the Sound Consultant. This unit is referred to as Back Up UPS Truck in drawing IC-21 10.1. The audio ground provided shall be a clean isolated technical ground. This ground shall be a ground rod installed at the UPS truck location. No other electrical ground connections are acceptable. The UPS Truck power service shall be:

Amperage: 75KVA Phases: 3 Phase Voltage: 208V

Termination: Camlock E1016 Noise Rating: <68dBA SPL @ 1 meter Enclosure Color: Black, Silver, Grey or Brown Outdoor Rating: UPS Truck and all connections shall be weatherproof and rated for outdoor use.

Back Up UPS Truck shall be installed on January 14th, 2021. The final location shall be determined by the Architect of the Capitol’s site supervisor with regard to refueling access and security fence issues.

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3. Delay System 1 – The power distribution for Delay System 1 shall be cabled to the existing CAPITOL POWER VAULT on the northwest end of the lawn near First Street. The Sound Contractor shall provide a load center with (3) 50 Amp breakers and all required cabling to the amplifier / equipment racks installed in speaker towers C, D and E. This Sound Contractor power distribution shall be connected by the Capitol electrician to the existing 200A isolation transformer. The load center and all cabling shall be weatherproof and rated for outdoor use. This service shall be completed and tested on January 9th, 2021.

4. Delay System 2 – Power for Delay System 2 shall be Generator S1.

This generator is provided by the Sound Contractor. Generator S1 should be delivered to the site on January 6th, 2021. All permits required by the National Park Service for the use, installation and refueling of Generator S1, shall be secured by the Sound Contractor at his expense. Scheduling for refueling of the generator shall be coordinated with the National Park Service. The audio ground provided shall be a clean isolated technical ground. This ground shall be a ground rod installed at the generator location. No other electrical ground connections are acceptable. This unit should be cabled and tested on January 8th, 2021. Generator S1 shall be:

Amperage: 45KVA Voltage: 120/208V Termination: Camlock E1016 Noise Rating: <66 dBA SPL @ 1 meter Enclosure Color: black, grey silver or brown Outdoor Rating: Unit and all connections shall be weatherproof and rated for outdoor use.

P. MIXING CONSOLE

1. The mix console shall be provided with redundant power supplies and an automatic changeover unit that will switch supplies in the event of a power supply failure.

2. Console Specifications:

Input Channels: 148 Microphone / Line Inputs.

Equivalent Noise: -78dB Outputs: 24 Matrix Outputs /12 Group Outputs /16 Auxiliary Outputs

Local I/O: 8 Analog Inputs / 8 AES Inputs / 8 Analog Outputs / 8 AES Outputs / 6 MADI Input Stream / 6 MADI Output Stream Digico SD5 / SD7 or approved equal

3. Stage Racks

(3) Digico Stage Racks shall be located at the Marine Band platform, the Upper Terrace bleacher structure and FOH. Connection shall be a redundant fiber ring.

4. Stage Rack Specifications:

Inputs: 56 Analog Outputs: 16 Analog / 8 AES

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Q. FIBER OPTIC DELAY MULT

1. The Contractor shall provide (2) 16 channel redundant ring topology type line level fiber optic transmission system. Fiber Ring #1 (Mult L) provides signal distribution to the Primary Sound System amplifiers located at Speaker Towers A and B. Nodes are located at FOH, Speaker Tower A and Speaker Tower B. Fiber Ring #2 (Mult M) provides signal distribution to all amplifiers for Delay Zone 1 and Delay Zone 2. Nodes are located at FOH, Speaker Tower C and Speaker Tower G. Refer to drawing IC-21 11.1.

2. Specifications:

Channels: (16) Line Outputs / (4) Mic Inputs

Signal to Noise Ratio: -96dB Sampling Rate: 48kHz Resolution: 24 bit Frequency Response: +/-1dB 20Hz – 20kHz Type: Optocore QSC Rave Whirlwind Approved Equal

R. TENTS AND PORTABLE STRUCTURES

1. The tent structure to protect the audio control consoles on the lawn shall be 12 ft. W by 24 ft. D by 8 ft. H. Peaked roof pole construction shall be acceptable. Unit shall include a waterproof plastic top and sides that shall be clear in color. Raised floor and stake tie-downs shall be provided by Sound Contractor. Refer to drawing IC-21 2.1 for details.

The small tent structures to protect the amplifiers and other electronics at Speaker Towers A & B shall be 10 ft. W by 10 ft. D by 8 ft. H. These tents shall include a waterproof impregnated canvas top that shall be white or pale grey in color. Refer to drawing IC-21 7.1 for details.

3. All delay speaker towers that contain amplifiers and/or electronic equipment shall have waterproof tarps securely installed so as to completely protect the equipment from any damage or malfunction due to weather. These tarps shall be white or light grey in color.

IV. PRODUCTS

A. GENERAL REQUIREMENTS

1. All line level equipment to be low impedance balanced inputs with balanced outputs.

2. Provide transformers or other devices to eliminate hum or ground loop interference for all connections that are not fiber optic.

3. Wiring and interconnections shall be arranged to minimize any interference or hum.

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4. Remove or cover manufacturer’s names or logos on components in public view.

B. ACCEPTABLE MANUFACTURERS

1. Model numbers and manufacturers included in this specification are listed as a standard quality.

2. Other qualified manufacturers will be considered subject to approval of complete technical data, samples, and results of independent testing laboratory tests of proposed equipment, submitted to design consultant.

3. If proposed system includes equipment other than specified model numbers, submit a list of major items and their quantities, with a one-line schematic diagram for review. Include a list of previously installed projects similar in nature to specified system.

C. EQUIPMENT CONDITION

1. Equipment and materials shall be new, and conform to applicable UL, CSA, or ANSI provisions.

2. Regardless of the length or completeness of the descriptive paragraph herein, each device shall meet published manufacturer’s specifications. Verify performance as required.

V. SUBMITTALS

A. COMPLETE EQUIPMENT LIST

1. Provide (4) copies of a complete inventory of equipment proposed for use on this project.

B. SUBSTITUTIONS

1. Any substitutions for specified equipment shall be submitted (10) days prior submittal deadline.

C. CONTRACT CLOSEOUT SUBMITTALS

1. Maintain complete set of Drawings on the job, note changes made during installation.

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VI SYSTEM WIRING

A. All speaker and mult connections shall be made weatherproof. All connections shall be tied up off of the ground and wrapped in clear plastic with the opening facing the ground to allow moisture to drain down and out of the connection.

B. Take precautions to prevent and guard against electromagnetic and electrostatic hum. For line level audio signals, flat cable shields at the output of source devise. Shields not connected to be folded back over cable jacket and covered with heat-shrink tubing. Do not cut off unused shields.

C. Exercise care in wiring; damaged cables or equipment will not be accepted.

Isolate cables of different signals or different levels; and separate, organize, and route to restrict channel crosstalk or feedback oscillation in any amplifier section.

Keep wiring separated into groups for microphone and line level circuits, loudspeaker circuits, and power circuits.

D. Make joints and connections with rosin-core solder or with mechanical connectors approved by the Consultant; where spade lugs are used, crimp properly with ratchet type tool. Spade lugs mounted on 22 gauge or smaller cable to be soldered after crimping.

E. Route unbroken microphone, audio line, and control wiring from receptacle plate/chassis to patch panel/rack. Remove spliced cables and replace without additional charge to the Client.

F. Connect cable to active components through screw terminal connections and spade lugs whenever available. Make connections to speaker transformers with properly sized closed end connectors crimped with factory approved ratchet type tool. Wire nut or “Scotchlock” connectors are not acceptable for splicing wires smaller than 12 gauges. Do not wrap audio cable splices or connections with adhesive backed tape.

G. Execute wiring in strict adherence to “standard broadcast practices,” as excerpted from “Recommended Wiring Practices,” Broadcast Audio Equipment for AM, FM, Television (5th Edition), Radio Corporation of America (RCA), Camden, N.J. 1962, and Appendix II, “Recommended Wiring Practices”, Sound System Engineering, (2nd Edition),D. Davis, and performed in accordance with standard professional practice.

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H. Run vertical wiring inside rack in properly sized plastic raceway with snap-on-covers (Panduit Type E series). Horizontal wiring in rack to be neatly tied in manageable bundles with cable lengths cut to minimize excess cable slack but still allow for service and testing. Provide horizontal support bars of cable bundles sag. Neatly bundled excess AC power cable from rack mounted equipment with plastic cable ties. Rack wiring to be bundled with plastic cable ties or lacing twine.

Electrical tape and adhesive backed cable tie anchors are not acceptable.

I. Connect loudspeakers electrically in phase, using the same wire color code for speaker wiring throughout the project. Verify that the acoustic polarity is maintained through the entire electronic signal path including microphones, mixing consoles, signal processing, amplifiers and loudspeakers.

J. Wiring and connections shall be completely visible and labeled in rack.

Termination resistors shall be ½ watt 5 per cent tolerance; fully visible and not concealed within equipment or connectors.

VI. EQUIPMENT CABLE AND LABELING

A. Cables and wiring shall be logically and legibly labeled for easy identification.

Wiring designations to be an alpha-numeric code that is unique for each cable.

Actual cable designation assignments to be determined by Consultant. Provide adhesive labels on the rear of equipment where cables attach to indicate the designation of the cable connected at that point.

B. In professional sound systems, it is customary to categorize circuits in the following:

1. Microphone wiring (-80 dBm to –20 dBm).

2. Line level wiring (-20 dBm to +30 dBm). To telephone engineers, this becomes a maximum level of 0 dBm.

3. High-level wiring (+30 dBm and above; i.e., all loudspeaker circuits).

4. AC power wiring.

5. DC control wiring or emergency power wiring (relays, batteries, etc.)