Audio T Verdict
The Solidsteel S4-2 takes the basic thinking behind the popular S3 Series and stretches it sideways. At just over 1.1 metres wide, it provides considerably more room for equipment without becoming a tall tower of shelves, making it particularly useful for home cinema, AV and wider hi-fi installations.
That extra width changes what you can do with the rack. Two components can sit alongside one another where dimensions allow, a compatible television can occupy the open top, or the S4-2 can form the foundation of a low-profile hi-fi system that would otherwise require a three or four-level vertical rack.
The engineering is reassuringly substantial too. Current Solidsteel specifications give each shelf a 110kg load capacity, while anodised aluminium supports are internally filled with StratoCell damping material. Adjustable stainless-steel spikes allow the complete structure to be accurately levelled and matching floor-protection discs are included.
If you have the floor space, the S4-2 is a particularly clever alternative to building upwards. It is equally at home beneath AV equipment and a television as it is supporting a wide collection of hi-fi separates.
Measure the Available Floor Space First
The S4-2 is approximately 1114mm wide, substantially wider than a conventional hi-fi rack. Check the available room width, equipment footprint and any television stand or support-foot spacing before ordering.
Solidsteel S4-2 Two-Shelf AV and Hi-Fi Rack
The Solidsteel S4-2 is a wide, two-level equipment rack designed for hi-fi, home cinema and AV systems where conventional narrow furniture does not provide enough horizontal space.
Rather than simply adding more vertical shelves, the S4 Series expands the S3 concept sideways. This creates approximately two 500mm-wide equipment zones across a rack measuring just over 1.1 metres overall, allowing multiple components to share the same level while retaining individual space around them.
The standard S4-2 provides approximately 325mm of vertical clearance between its two levels, with a completely open top platform above.
- Wide two-level AV and hi-fi equipment rack
- Current Solidsteel S4 Series
- Designed for wider AV and home cinema systems
- Also suitable for substantial hi-fi installations
- Approximately 1114mm overall width
- Approximately 475mm overall height
- Approximately 430mm overall depth
- Approximately two 500mm-wide equipment bays
- Approximately 325mm vertical clearance
- 110kg maximum load per shelf
- Approximately 243lb maximum load per shelf
- Approximately 28kg rack weight
- Ennobled MDF equipment shelves
- Premium polymer-laminate finish
- Anodised aluminium support tubes
- StratoCell sound-absorbing material inside the supports
- Stainless-steel structural components
- ABS protective shelf interfaces
- Adjustable stainless-steel floor spikes
- Stainless-steel protective floor discs
- Modular construction
- Alternative upright heights available
- Black finish
- White finish
A Wide Rack Rather Than a Tall Rack
The defining feature of the S4 Series is its width.
Conventional hi-fi racks such as Solidsteel's S3 Series organise components vertically, usually placing one major component on each level. The S4 takes a different approach by creating significantly more horizontal equipment space.
This can be useful where:
- Two source components need to sit side by side
- Home cinema equipment needs a wider furniture footprint
- A television is positioned above the AV electronics
- Several compact components can share one level
- A low-profile furniture layout suits the room better than a tall rack
- Equipment needs additional space around it for ventilation
Approximately 1114mm Wide
At approximately 1114mm across, the S4-2 is almost twice the width of a conventional S3 rack.
This is not simply cosmetic. The additional width creates useful side-by-side equipment space that can make a large system easier to organise.
Think Horizontally
The S4-2 can sometimes accommodate the same number of components as a considerably taller conventional rack by positioning suitable equipment side by side. This can be particularly attractive beneath a television or where a lower furniture profile works better in the room.
Two Approximately 500mm Equipment Bays
The supporting structure divides the wide rack into approximately 500mm equipment zones.
This gives enough width for most conventional hi-fi and AV components, including equipment based around the familiar 430mm to 450mm chassis format.
Possible side-by-side combinations include:
- Streamer and CD player
- Blu-ray player and network streamer
- DAC and preamplifier
- Phono stage and power supply
- Two monoblock amplifiers where dimensions allow
- AV electronics and supporting source equipment
325mm Vertical Equipment Clearance
The standard S4-2 provides approximately 325mm between its lower and upper levels.
This is the same generous standard spacing used by the two-shelf S3-2 and gives substantially more vertical room than many conventional AV cabinets.
It can accommodate many:
- AV receivers
- Integrated amplifiers
- Power amplifiers
- Network players
- Blu-ray and UHD players
- Large external power supplies
- Home cinema processors
Equipment Clearance and Ventilation Are Not the Same Thing
A component being less than 325mm tall does not automatically mean it has sufficient cooling space. Always follow the amplifier or AV receiver manufacturer's recommended ventilation clearances.
Useful for Home Cinema and AV Systems
Solidsteel currently classifies the S4 as an AV rack rather than simply another conventional hi-fi rack.
The wider form makes particular sense for home cinema because AV systems commonly combine several substantial components in one area.
The S4-2 can provide space for equipment such as:
- AV receivers
- Surround processors
- Power amplifiers
- Blu-ray and UHD players
- Network streamers
- Games consoles
- Media players
- Compatible televisions
Can You Put a Television on the S4-2?
The wide open upper level can potentially support a television where its weight and stand arrangement are suitable.
Before doing so, check:
- Television weight
- Overall television width
- Distance between its support feet
- Depth of the television base
- Manufacturer requirements for furniture support
- Rear cable access
Check Television Foot Spacing
Modern televisions can use feet positioned close to the extreme edges of the screen. Do not assume that a television will fit simply because the screen itself looks proportionate to the 1114mm rack width. Measure the actual support-foot spacing first.
Equally Useful for Hi-Fi
The S4-2 is not restricted to home cinema.
A wide two-level rack can be an elegant way to organise a hi-fi system while keeping the overall furniture height low.
One possible arrangement might include:
- Turntable on the open top
- Streamer alongside another source component
- Integrated amplifier or power amplifier below
Another might use the upper level for two digital sources and the lower level for preamplifier and power amplification.
110kg Capacity Per Shelf
Solidsteel's current S4 specification rates each equipment shelf for up to 110kg.
That is approximately 243lb and gives the S4 substantially more load capacity than the conventional S3 rack shelves.
The additional capacity is useful with AV systems because large receivers, multichannel power amplifiers and multiple components can create considerable combined weight.
Do Not Treat Load Capacity as the Only Limit
A component or combination of components can remain comfortably below the 110kg rating but still be unsuitable because of dimensions, support-foot positioning, ventilation or cable clearance. Consider all of these factors together.
430mm Equipment Depth
The S4-2 is approximately 430mm deep.
This suits many source components and conventional hi-fi electronics, although some AV receivers, multichannel amplifiers and large integrated amplifiers can be similarly deep before any cables are connected.
Allow Space Behind the Rack
Rear connections can add a significant amount to the installed depth of AV equipment.
Particular attention should be paid to:
- HDMI cables
- IEC mains plugs
- Large mains cables
- Speaker binding posts
- Banana plugs and spades
- XLR connectors
- Network cables
- Aerial connections
Do Not Push an AV Receiver Hard Against the Wall
Large AV receivers can have particularly busy rear panels. Leave enough room for every cable to exit naturally without sharp bends or excessive pressure on the sockets.
Ennobled MDF Shelves
The S4 Series uses engineered MDF equipment platforms with a polymer-laminate surface.
The laminate provides a durable and consistent external finish, while the MDF beneath provides the structural platform for the equipment.
Unlike the HF Series Elite, the S4 does not use genuine decorative timber veneer.
Black and White Finishes
The current S4 Series is available in two finishes:
Black gives the rack a conventional equipment-led appearance, while White can help a substantial 1114mm-wide piece of furniture integrate more discreetly into a lighter contemporary interior.
Anodised Aluminium Support Tubes
The vertical supports use anodised aluminium tubes.
The material provides a rigid supporting structure while avoiding the extreme mass that would result from constructing a rack of this width entirely from solid steel.
StratoCell Internal Damping
Solidsteel fills the aluminium supports with StratoCell sound-absorbing material.
A hollow metal tube can exhibit resonant behaviour when exposed to mechanical energy. Internal damping helps control that behaviour while retaining the rigidity required to support heavy equipment.
What Is StratoCell?
StratoCell is the sound-absorbing material Solidsteel uses within the aluminium support tubes of its S Series furniture. It forms part of the rack's approach to controlling resonance within the supporting structure.
Stainless-Steel Structural Components
The wider S4 structure combines its aluminium tubular supports with stainless-steel components at important mechanical interfaces.
Solidsteel currently identifies stainless steel at areas including:
- Upper terminations
- Lower terminations
- Adjustable floor spikes
- Protective floor discs
ABS Shelf Interfaces
ABS protective discs are also used at the shelf interfaces.
These provide defined contact points between the equipment platforms and structural hardware rather than placing the MDF surfaces directly against bare metal.
Adjustable Floor Spikes
The S4-2 uses individually adjustable spikes at floor level.
This allows small irregularities in the floor to be compensated for so that the wide rack remains properly supported across its contact points.
Accurate Levelling Is Important
Levelling is particularly important with a rack more than a metre wide.
If the floor varies slightly from one side to the other, adjustable supports help ensure the structure remains stable rather than rocking or twisting under the weight of the equipment.
This is especially useful if a turntable occupies the upper platform.
Protective Stainless-Steel Floor Discs
Solidsteel supplies stainless-steel protective pads for use beneath the spikes on flooring that could otherwise be marked.
Position the Rack Before Fully Loading It
The S4-2 itself weighs approximately 28kg and can support very substantial equipment. Assemble, position and level the furniture before fully loading it wherever practical, particularly on hard or delicate flooring.
Why Use Dedicated AV and Hi-Fi Furniture?
Purpose-designed equipment furniture offers several advantages over general household cabinetry.
- Equipment receives dedicated mechanical support
- Open sides help airflow
- Rear connections remain accessible
- Heavy equipment is properly supported
- Components do not need to be stacked
- The rack can be accurately levelled
Does a Specialist Rack Improve Sound?
The audible effect of changing equipment support depends on the equipment, floor and room.
Turntables and other mechanically sensitive components may react more noticeably to their support than some solid-state electronics.
The practical benefits are more universal: stable positioning, individual equipment support, improved ventilation and better cable access.
Fully Modular Construction
The S4 Series is designed as a modular furniture system rather than a permanently fixed configuration.
Solidsteel currently offers alternative upright kits providing shelf spacings from approximately 145mm to 365mm.
This allows the rack to be configured around equipment that is unusually tall or particularly compact.
Standard 325mm or Something Different?
The standard S4-2 already provides a generous 325mm equipment interval. If your system would work better with another height, speak to Audio T before ordering so that the available Solidsteel upright options can be considered.
Expandable as the System Changes
The modular S4 structure also means the rack can evolve as the equipment changes.
Additional levels can be incorporated where required, potentially accommodating future additions such as:
- Additional source components
- A separate DAC
- A dedicated power amplifier
- An external power supply
- A home cinema processor
S4-2 or S3-2?
S4-2
- Wide AV and hi-fi rack
- Approximately 1114mm wide
- Approximately 475mm high
- 430mm deep
- Two approximately 500mm equipment bays
- 325mm standard clearance
- 110kg maximum load per shelf
- Approximately 28kg rack weight
S3-2
- Conventional-width hi-fi rack
- Approximately 584mm wide
- Approximately 475mm high
- 430mm deep
- Approximately 500mm usable equipment width
- 325mm standard clearance
- 60kg maximum load per shelf
- Approximately 15kg rack weight
Which Is Better for Your System?
The Solidsteel S3-2 makes more sense where equipment will be arranged one component per level and floor space is limited.
The S4-2 is the better choice where additional width is genuinely useful, particularly for AV systems, side-by-side equipment or a low-profile installation beneath a television.
S4-2 or S4-3?
S4-2
- 2 levels
- Approximately 475mm overall height
- 325mm standard clearance
- Approximately 28kg rack weight
- Lower furniture profile
- Ideal where two wide levels are enough
S4-3
- 3 levels
- Approximately 670mm overall height
- 245mm / 245mm standard clearances
- Approximately 42kg rack weight
- Additional equipment level
- Better for larger AV systems
When Should You Choose the S4-3?
The Solidsteel S4-3 becomes more useful where the system needs another full equipment level.
The trade-off is height and reduced standard vertical clearance: the S4-3 uses two 245mm equipment intervals rather than the single 325mm gap of the S4-2.
Who Is the Solidsteel S4-2 For?
- Wide AV and home cinema systems
- Low-profile hi-fi installations
- Systems with components positioned side by side
- AV receivers and source components
- Compatible television installations
- Large integrated and power amplifiers
- Systems requiring high shelf load capacity
- Turntable systems needing a wide open top platform
- Customers who prefer furniture to spread horizontally rather than vertically
- Systems likely to evolve through modular expansion
- Customers looking for Italian specialist AV furniture
Who Is It Not For?
- Rooms without approximately 1114mm of available width
- Simple systems where a conventional-width S3 rack is sufficient
- Very deep electronics that cannot work with the 430mm shelf depth
- Equipment requiring more than the standard 325mm enclosed clearance without custom uprights
- Customers needing three or more vertical equipment levels immediately
- People wanting genuine timber veneer
- Customers wanting enclosed cabinet furniture with doors
Key Features
- Solidsteel S4-2
- Two-level wide AV rack
- Suitable for hi-fi and home cinema
- Current S4 Series
- Made in Italy
- Approximately 1114mm overall width
- Approximately 475mm overall height
- Approximately 430mm depth
- Two approximately 500mm equipment bays
- 325mm standard vertical clearance
- 110kg maximum load per shelf
- Approximately 243lb shelf capacity
- Approximately 28kg rack weight
- Ennobled MDF platforms
- Premium polymer-laminate finish
- Anodised aluminium support tubes
- StratoCell internal damping
- Stainless-steel structural components
- ABS shelf interfaces
- Adjustable stainless-steel spikes
- Stainless-steel protective floor discs
- Fully modular construction
- Custom upright kits available
- Approximately 145mm to 365mm configurable shelf spacing
- Expandable with additional levels
- Black finish
- White finish
Frequently Asked Questions
What is the Solidsteel S4-2?
The Solidsteel S4-2 is a wide two-level equipment rack designed for AV, home cinema and hi-fi systems. Its 1114mm width provides significantly more side-by-side equipment space than a conventional hi-fi rack.
Is the Solidsteel S4-2 a hi-fi rack or an AV rack?
It can be used for both. Solidsteel currently classifies the S4 Series as AV furniture, but its modular open construction is equally suitable for conventional hi-fi components.
What are the dimensions of the Solidsteel S4-2?
The S4-2 measures approximately 1114mm wide, 475mm high and 430mm deep.
How much equipment space does the S4-2 provide?
The wide structure provides approximately two 500mm-wide equipment areas, with around 430mm of shelf depth.
What is the vertical clearance between the S4-2 shelves?
The standard S4-2 provides approximately 325mm of vertical equipment clearance.
How much weight can each Solidsteel S4-2 shelf support?
Solidsteel currently rates the S4 Series for up to 110kg per shelf, approximately 243lb.
How much does the Solidsteel S4-2 weigh?
The established S4-2 specification gives an approximate rack weight of 28kg.
Can I put two hi-fi components side by side on the S4-2?
Yes, where their combined dimensions and support positions are suitable. Providing wider side-by-side equipment space is one of the main reasons for choosing the S4 Series over the narrower S3 range.
Can the Solidsteel S4-2 support an AV receiver?
Yes, provided the receiver fits the available width and depth, remains within the shelf load rating and has sufficient ventilation within the 325mm standard clearance.
Can I put a television on the Solidsteel S4-2?
Potentially. Check the television's total weight, base depth and support-foot spacing against the rack before installation. Some modern televisions have feet positioned too widely for furniture narrower than the screen itself.
Is the S4-2 suitable for a turntable?
Yes. The open top level can provide a useful position for a turntable. Particularly springy suspended floors may still benefit from a dedicated wall-mounted turntable shelf.
Is the S4-2 suitable for a power amplifier?
Yes, provided the amplifier fits safely, remains within the 110kg shelf rating and has sufficient ventilation.
What is StratoCell damping?
StratoCell is the sound-absorbing material Solidsteel uses inside the S4 aluminium support tubes to help control resonance within the rack structure.
Does the Solidsteel S4-2 reduce vibration?
The S4-2 is designed to provide a stable, damped mechanical support using internally damped aluminium tubes, defined shelf interfaces and adjustable floor-contact points. The audible effect will depend on the equipment, floor and wider system.
Does a specialist AV or hi-fi rack improve sound quality?
The degree of audible change varies between systems. More universal benefits include stable equipment support, better ventilation, easier cable access and avoiding direct component stacking.
Are the S4-2 feet adjustable?
Yes. The floor spikes can be adjusted to level the rack accurately.
Can the Solidsteel S4-2 be used on wooden floors?
Yes. Stainless-steel protective floor discs are provided for use beneath the spikes on timber, laminate and other surfaces that could be marked.
Can the shelf height be changed?
Yes. The S4 is modular and Solidsteel offers alternative upright kits providing shelf spacings from approximately 145mm to 365mm.
Can extra shelves be added to the S4 Series?
Yes. The modular construction allows the rack configuration to be expanded as system requirements change.
What is the difference between Solidsteel S4 and S3 racks?
The S4 is substantially wider and designed with AV systems and side-by-side equipment in mind. The S3 is a more conventional narrow vertical hi-fi rack. The S4 also carries a higher current shelf load rating of 110kg compared with 60kg for conventional S3 rack shelves.
What is the difference between the S4-2 and S4-3?
The S4-2 has two equipment levels with a 325mm standard clearance. The S4-3 adds a third level and uses two 245mm standard equipment intervals.
What finishes are available for the Solidsteel S4-2?
The current S4 Series is available in Black and White.
Is the Solidsteel S4-2 made from real wood?
No. The equipment platforms use engineered MDF with a polymer-laminate finish rather than genuine wood veneer.
Where is the Solidsteel S4-2 made?
The S4 Series is made in Italy by Solidsteel.
Does the Solidsteel S4-2 require assembly?
Yes. The modular rack requires assembly and should be positioned and accurately levelled before heavy equipment is installed.
Related Solidsteel Products and Audio T Guides
Why Buy the Solidsteel S4-2 From Audio T?
A wide AV rack needs a little more planning than a conventional single-width hi-fi stand. Equipment width, television foot spacing, amplifier ventilation, rear cable clearance and the total available floor space all need considering.
Audio T can help check your equipment against the S4-2, compare it with the narrower S3 Series and establish whether the two-level S4-2 or a taller S4 configuration is the better fit for your system.
- Friendly specialist hi-fi and home cinema advice
- Equipment dimension checks
- AV receiver ventilation guidance
- Television support-foot checks
- S3 and S4 Series comparisons
- S4-2 and S4-3 comparisons
- Turntable placement advice
- Custom shelf-height guidance
- Future expansion planning
- Spike and levelling setup assistance
- Floor-protection advice
- Rear cable-clearance guidance
- Ongoing after-sales support
Contact your local Audio T store if you would like help planning a Solidsteel S4-2 around your hi-fi, home cinema equipment or television.