Monoprice

Monoprice 139165 Monolith 4-Tier XL Audio Stand - Open Air

4.8 (121 reviews)
75 lbs150 lbs

Organize and Display Your AV Components with Style and Stability The Monolith 4 Tier Audio Stand XL is the perfect solution for organizing and displaying your home theater or entertainment system components. With its open-air design, sturdy construction, and modular configuration, this audio sta...

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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

Organize and Display Your AV Components with Style and Stability

The Monolith 4 Tier Audio Stand XL is the perfect solution for organizing and displaying your home theater or entertainment system components. With its open-air design, sturdy construction, and modular configuration, this audio stand offers maximum airflow, easy access, and incredible support for even the heaviest AV equipment.

Specifications:

  • Brand: Monoprice
  • Model: 139165
  • Shelves: 4 Tier
  • Shelf Material: MDF
  • Frame Material: Alloy Steel
  • Weight Capacity (per Shelf): Up to 84.9 lbs (Up to 150 lbs with Support Bar)
  • Total Max Weight: 350 lbs
  • Dimensions: 18.7"D x 23.9"W x 31.5"H
  • Finish: Black Powder Coated
  • Features: Open Air Design, Modular Construction, Support Bar

Key Features

Sturdy construction: The four steel support tubes feature a scratch-resistant black powder-coated finish, while the rigid, thick MDF Shelves feature a finish that cleans easily and resists scratches and scuffs. Each shelf is acoustically Inert and can support up to 75 lbs., while the shelf with the support bar can hold up to 150 lbs

Open air design: the stand is designed with open air shelving for critical airflow, cooling, and ease of access to your components. Unlike most enclosed AV cabinets, This sturdy design will ensure your equipment receives plenty of circulating air that will keep them from overheating during use

Modular construction: The fully customizable modular design lets you build your rack exactly as tall as needed. Start with the base and add as many of the 4 shelves as you need. One set of steel support tubes are longer, allowing one tier of the stand to accommodate taller components

Additional support bar: attach the provided support bar underneath a shelf for additional structural bracing for your heaviest components

The perfect way to organize and display your AV components

Specifications

Number of Tiers
4
Shelf Material
MDF
Support Tube Material
Steel
Standard Shelf Weight Capacity
75 lbs
Reinforced Shelf Weight Capacity
150 lbs
Finish (Support Tubes)
Black powder-coated
Design
Open-air
Construction
Modular

Pros & Cons

👍 Pros

  • Features sturdy steel support tubes with a scratch-resistant black powder-coated finish for durability
  • Equipped with rigid, thick MDF shelves that are acoustically inert, minimizing unwanted vibrations
  • Each standard shelf can support up to 75 lbs, while one reinforced shelf holds up to 150 lbs
  • Open-air shelving design ensures critical airflow, cooling components, and easy access to gear
  • Modular construction allows for customizable height, accommodating taller components with longer tubes

👎 Cons

  • Assembly is required, which may be time-consuming depending on the user's experience with such furniture
  • The open-air design, while good for cooling, may expose components to more dust than enclosed cabinets
  • While customizable in height, the overall footprint may be too large for very confined studio spaces
  • The aesthetic, while functional, might not suit all studio design preferences, being utilitarian
  • Only one shelf is designed for the heaviest components (150 lbs), limiting where the heaviest gear can be placed

Frequently Asked Questions

Each standard shelf on the Monoprice Monolith audio stand can support up to 75 lbs, while one specifically reinforced shelf can hold up to 150 lbs.
The stand features steel support tubes with a scratch-resistant black powder-coated finish, and rigid, thick MDF shelves that are easy to clean and resist scratches.
Yes, the open-air design of the shelving promotes critical airflow, which helps in cooling your components and preventing overheating during use.
The stand has a modular construction, allowing you to customize the height by adding or removing shelves, and it includes longer support tubes for accommodating taller components on one tier.
Yes, an additional support bar is provided which can be attached underneath a shelf to offer extra structural bracing for your heaviest components, increasing its capacity to 150 lbs.