What must an AV project contain so it doesn’t become overpriced?

5 pillars of a complete AV project

Technical system description – defines what the system should do, which use cases it must cover, and how it should respond.

PDF and DWG drawings – precise layout of all technologies in the floor plan, usable for both the architect and the site manager.

Electrical installation scheme – requirements for power supply, circuits, sockets, and cable routes to be included in the construction preparation.

Cabling specification – type, category, length, and routing of each cable in the system, including penetrations and cable trays.

Bill of Materials (BOM) – a list of specific products and approved equivalents with exact manufacturer and model designation.

When a company is implementing AV technology for a new meeting room, training center, or control room, the first impulse is usually to send suppliers a brief description and request a quote. It is a logical step, but it leads to a situation where each supplier interprets the requirements differently and the resulting offers are based on different assumptions.

A budget created without project documentation is, in reality, just an estimate. And an estimate naturally tends to change. It usually changes upwards, when during implementation it becomes clear what still needs to be resolved.

Analogy with building a house

An AV project serves the same function as an architectural project when building a house. When someone builds a house, the first step is the architect. They prepare floor plans, sections, structural assessments, requirements for electricity, water, heating, and a bill of quantities. Only then does the investor approach construction companies. Each of them prices the same scope, the offers are comparable, and the investor has a document that allows them to control the construction process.

A meeting room or conference space is, in a way, a smaller building with electrical distribution, cabling, integration into the space, and precise requirements for how the entire system should work together. A proper project is the foundation of a reliable solution.

What is the difference between an estimate and a binding AV technology budget?

The difference between an estimate and a binding budget is not in the quality of the assignment provided.

Offer without project (estimate)Offer based on a project (binding budget)
Each supplier interprets the brief in their own wayAll suppliers price the same defined scope
Different products, approaches, and scopesSame specification, comparable line items
Only the total price is comparedItems can be compared line by line
Change orders during implementation are commonChange orders are rare and predefined
The budget typically increases during executionThe budget is binding and predictable

 

When three suppliers receive only a short description such as “we need an AV solution for a new meeting room for twenty people”, each of them interprets the assignment differently. The result is three offers with different scopes that cannot be directly compared.

What does a professional AV project design consist of?

A professional AV project is a technical document that defines what will be installed, where, how, and why. It consists of five parts, each addressing a different layer of the project.

How does the technical description of an AV system work?

The technical description is the textual part of the project that explains what the system should do and how it should do it. It is a functional document describing the logic of the design.

What the technical description includes:

  • Room usage scenarios – what activities will take place in the space
  • Video conferencing workflow – software, number of participants, display size
  • Audio control – microphones, speakers, DSP, automatic modes
  • System behavior with external presenters or connected devices
  • System response to different inputs and combinations of scenarios

When the technical description is specific, both the supplier and the client are referring to the same solution. When it is general, each party imagines something different, and alignment only happens during implementation.

Why is it necessary to map technologies into floor plans (PDF + DWG)?

A floor plan with marked technology positions defines exactly where each device will be installed. This determines whether the camera will capture the correct angle, whether the display will avoid window reflections, whether speakers will cover the entire room, and whether the control panel will be accessible where it is actually needed.

Two formats, two purposes:

PDF – visual review and approval by the client. A floor plan that anyone can view without specialized software.

DWG – coordination with the building design. Architects and site managers work directly with it, check for clashes with other systems (HVAC, lighting, furniture), and prepare the building so it is compatible with AV technology before installation begins.

Precise layout is a tool that allows all disciplines to work from the same plan and thus avoid situations where one trade complicates the work of another.

A professional AV project is a technical document that defines what will be installed, where, how, and why.

Why does unprepared electrical installation most often make projects more expensive?

AV technologies require power in precise locations and with precise parameters. A wall-mounted display, a ceiling projector, ceiling microphones, a control unit in a rack, or a control panel by the door—each device has its own power requirements, and some also require dedicated circuits.

Without AV projectWith AV project
Electrical installation is addressed only during installationElectrical installation is part of construction preparation
Cutting into finished walls and ceilingsCabling is installed during construction
Electricians return multiple timesElectricians work in a single coordinated phase with construction
Work is billed as change ordersCosts are included in the original construction budget
Schedule is delayed by days or weeksAV team installs on ready infrastructure

This is one of the most common reasons AV projects become more expensive. It happens because electrical installation was not included in the original scope.

MediaTech-logitech-meetup

What does the reliability and cost of AV cabling depend on?

Cabling is the part of an AV project that is rarely discussed, yet it determines the reliability of the entire system. Not every cable is the same, not every one works over any distance, and not every cable is sufficiently shielded against interference.

Transmission type overview

Type of transmissionCharacteristics and limits
HDMI (passive copper cable)Reliable up to ~5 m. Beyond 10–15 m there is a risk of signal loss and dropouts.
HDBaseT (shielded Cat 6A/7 twisted pair cable)Transmits video, audio, control, and PoH up to 100 m. Standard for fixed installations.
Fiber optic cableTransmission over tens to hundreds of meters. Suitable for large buildings and campuses.
USB (direct connection)Passive up to ~5 m. Requires active extenders or AV over IP for longer distances.
Audio (balanced XLR / Cat cabling)Long runs require shielding and proper grounding to avoid interference.

What a complete AV project defines for each cable:

  • Type and category (e.g., HDMI 2.1, Cat 6A, OM4 multimode)
  • Exact length including reserve
  • Route – where it runs, through which conduits, trays, or cable paths
  • Required space for routing and separation from power lines

Without this specification, cabling is usually included in the offer as a single lump-sum item. Only during installation does it become clear what the actual routing looks like, what type of cable is needed, and whether there is enough space to install it properly.

A complete project treats cabling as infrastructure—just as important as the devices themselves.

What is a Bill of Materials (BOM) and why should it be required?

A BOM (Bill of Materials), in Slovak výkaz výmer, is a complete list of all products, devices, and components included in an AV solution. It contains exact manufacturer and model designations, quantities, and in many cases also approved equivalents.

An offer stating only “75-inch display” can refer either to a professional-grade panel with built-in calibration and long lifespan for continuous operation, or to consumer electronics intended for home use that behaves very differently in a commercial environment. The difference is fundamental, but it is not visible from the wording “75-inch display.”

What the BOM enables for the client:

Independent quality verification – products can be checked directly with the manufacturer or through technical specifications.

Precise comparison of offers – when multiple suppliers bid, comparison is done item by item, not only based on total price.

Clear substitution rules – if a product becomes unavailable, approved equivalents are defined in advance within the project.

A project without a BOM is only a conceptual outline. A project with a BOM is a binding technical specification.

What are the most common problems with standard AV offers without a project?

When an AV offer is created without project documentation, four typical situations usually occur. These are not caused by bad intentions from suppliers, but by the natural result of an imprecise brief.

1. Non-comparable offers

Each supplier works with a different scope, different products, and a different approach. The only thing that can be compared is the total price—and without a consistent scope, that number does not say much.

2. Cost increases during implementation

Without a project, there are no precise requirements for electrical installation, cabling, or construction adjustments. These items appear gradually and are billed as change orders.

3. Non-optimized technology selection

Without a detailed design, suppliers tend to propose what they know best and have experience with. That is not always what best fits the specific room or use cases.

4. Lack of documentation for future use

When the system needs to be expanded later, there is no reliable documentation of what was installed, how it is connected, or what capacity reserves are available.

How to use an AV project in a tender process?

A complete AV project changes the dynamics of the procurement process.

Without a project, the client sends suppliers a description of what they want, and each supplier interprets it differently.

With a project, the same document is sent to everyone—containing the technical description, floor plans, electrical requirements, cabling specification, and Bill of Materials. Every supplier then prices the same scope.

What this gives the client:

Clear understanding of what is being compared – item by item, not just total prices.

Visibility into pricing accuracy – where an offer is overestimated or underestimated becomes clear.

A basis for targeted questions – the client can ask specific, technical questions to each supplier.

Fact-based decision making – decisions are made based on data, not presentation style.

Long-term documentation – the client retains full technical documentation even after implementation is completed.

Open approach to project independence

MediaTech is both an AV integrator and a provider of design services. In collaborations where the project is intended to serve the client for an independent tender process, we set up the cooperation so that the project is usable for any supplier from the start. This means it does not contain criteria tailored to any specific company, including us.

The client can then send the same project for pricing to three, five, or even ten integrators.

This mode of cooperation must be agreed in advance so that it is clear from the beginning what the client expects from the project and what role MediaTech plays in it.

The investment into an AV project is typically returned already in the first round of the tender process, in the form of more accurate comparison of offers and a lower risk of change orders during implementation.

CONTACT US

Contact our specialist or fill out a short form. We will contact you back.

OR FILL OUT A SHORT FORM

    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

    WordPress Lightbox