Solidsteel Series 3-A Amp Stand

Heavy-Duty Reference Amplifier Floor Platform | Brisbane HiFi Audio Specialist

The Solidsteel S3-A is a dedicated single-tier equipment platform designed for substantial power amplifiers, monoblock amplifiers, and heavy linear power supplies.

Handcrafted in Italy as part of Solidsteel's S3 Series, the S3-A combines a 30 mm-thick ennobled MDF platform, rigid anodised-aluminium support pillars, StratoCell damping material, stainless-steel hardware, and adjustable M8 floor spikes.

With a specified 120 kg load capacity, the S3-A provides a substantial foundation for high-mass Class A amplifiers and other large-format electronics while maintaining a compact, low-profile footprint.

At Brisbane HiFi, we recommend the S3-A for systems requiring dedicated floor-level support for heavy amplification where equipment weight, stability, ventilation, and mechanical isolation are important considerations.

Key Features & Mechanical Engineering Highlights

  • 120 kg Load Capacity: Designed to support substantial power amplifiers, monoblocks, and high-capacity linear power supplies within the specified weight limit.
  • 30 mm Heavy-Duty MDF Platform: The 430 × 580 mm shelf provides a substantial mounting surface with considerable structural mass.
  • Resonance-Damped Aluminium Pillars: Anodised-aluminium support tubes incorporate StratoCell sound-absorbing material to help control mechanical energy within the support structure.
  • Adjustable M8 Stainless-Steel Spikes: Precision-adjustable floor spikes allow accurate levelling and provide a defined mechanical interface between the platform and floor.
  • Galvanised & Stainless-Steel Hardware: Heavy-duty structural hardware provides the mechanical connections between the platform, pillars, and floor interface.
  • Protective Floor Discs: Solidsteel S Series floor pads provide a protective interface for timber, tile, laminate, and other finished flooring.
  • Low-Profile Architecture: The compact 125 mm overall height keeps large amplifiers close to the floor while providing clearance beneath the chassis.

Product Specifications

Specification Technical Detail
Platform Type Single-Tier Dedicated Power Amplifier Floor Stand
Maximum Load 120 kg / 264 lbs
Shelf Dimensions (W × D × Thickness) 430 × 580 × 30 mm
Overall Dimensions (W × D × H) 430 × 580 × 125 mm
Shelf Material Ennobled MDF with Polymer Laminate Finish
Available Finishes Black / Walnut / White
Frame Pillars Anodised Aluminium Tubes with StratoCell Fill
Hardware Galvanised Steel Components & Stainless-Steel End Pieces
Floor Coupling Adjustable Stainless-Steel Spikes + S Series Floor Pads


Designed for Heavy Amplification

The S3-A is particularly suited to large power amplifiers where conventional multi-shelf furniture may not provide the required platform dimensions or loading capacity.

Suitable applications can include:

  • High-power stereo amplifiers
  • Class A power amplifiers
  • Monoblock amplifiers
  • Large linear power supplies
  • External amplifier power supplies
  • Other heavy audio electronics within the 120 kg specification

For stereo systems using separate monoblocks, a dedicated S3-A platform can be configured for each amplifier.

Amplifier Ventilation

The low-profile platform raises the amplifier above the supporting floor while maintaining an open area around the chassis.

Adequate ventilation remains essential, particularly for high-bias Class A amplifiers that generate substantial operating heat.

Brisbane HiFi can assist with:

  • Amplifier footprint assessment
  • Platform sizing
  • Weight verification
  • Ventilation clearance
  • Equipment positioning
  • Floor protection
  • Cable routing

Manufacturer-specified ventilation clearances should always be maintained.

Mechanical Stability & Floor Coupling

The adjustable stainless-steel spikes allow the platform to be accurately levelled on the supporting floor.

The included S Series floor discs provide a protective interface for finished flooring.

For heavy amplifiers, correct levelling and load distribution are particularly important because of the considerable mass involved.

Amplifier Platform Planning

Before selecting an S3-A, Brisbane HiFi can help verify:

  • Amplifier dimensions
  • Total equipment weight
  • Platform loading
  • Cable clearance
  • Ventilation requirements
  • Floor type
  • Access and positioning requirements

This is particularly useful for large monoblock amplifiers and equipment with oversized transformers or heatsinks.

Why Choose Brisbane HiFi for Solidsteel Amplifier Platforms?

Brisbane HiFi Showroom Display:
Visit the Brisbane HiFi showroom to inspect Solidsteel's construction, finishes, platform thickness, and mechanical architecture.

Amplifier System Planning:
Our specialists can help match platform dimensions and load capacity to your specific amplifier and installation.

Australian Support:
Brisbane HiFi supplies genuine Italian Solidsteel equipment-support products throughout Queensland and Australia with specialist support and nationwide delivery.

What's Included in the Box?

  • 1 × Solidsteel S3-A amplifier stand frame and 30 mm MDF board assembly
  • 4 × Adjustable stainless-steel isolation spikes
  • 4 × Solidsteel protective floor discs
  • Assembly hardware
  • Instruction manual

Consult with the Brisbane HiFi Audio Specialists

The Solidsteel S3-A combines a 120 kg load capacity, 30 mm MDF platform, StratoCell-filled anodised-aluminium pillars, adjustable M8 stainless-steel spikes, and a compact 125 mm overall height in a purpose-built platform for substantial power amplification.

Contact Brisbane HiFi to discuss amplifier compatibility, platform sizing, load requirements, ventilation, or equipment placement.

Color: Black