AC Infinity AIRCOM S9 17in Top-Exhaust Cooling Fan System - Quiet

Our review of the AC Infinity AIRCOM S9 finds it most useful for anyone who stacks receivers, game consoles, or AV components in a tight entertainment center and needs a low-noise way to prevent overheating. The biggest reason to buy is its balance of strong airflow and quiet operation: with 210 CFM and a rated 21 dBA noise level, the S9 keeps temperatures down without turning the living room into a server closet. Setup is straightforward and the metal housing looks at home with typical AV gear.

Key Features

• Quiet cooling: Three PWM-controlled fans deliver effective airflow while keeping noise to a minimum, so equipment remains cool without a distracting hum.
• Flexible control: Two thermal trigger modes and four speed options let users prioritize silence or maximum cooling depending on component temperature.
• Top-exhaust design: The 17in top-exhaust layout vents heat away from stacked components, helping receivers and consoles run at stable temperatures.
• Durable bearings: Dual-ball bearing fans provide longer life and steady operation for continuous use in an AV cabinet.
• Plug-and-play fit: The 17 x 13.5 x 1.5 in footprint fits standard AV gear and is quick to install without special tools.

Who It's For

The AIRCOM S9 is a good match for home theater enthusiasts, gamers, and anyone who stores AV components in enclosed cabinets and wants to avoid thermal throttling or shortened electronics lifespan. It is also suitable for small media racks where discreet, reliable airflow is preferred over noisy cooling solutions.

Users who need active cooling for large server racks, industrial equipment, or highly specialized cooling requirements should look elsewhere, since this unit is designed for consumer AV components and compact cabinet use rather than heavy-duty data center cooling.

Pros & Cons

Pros

• Works well to lower component temperatures with a measured 210 CFM airflow.
• Build quality and metal housing blend with AV setups and feel durable.
• Programmable thermal triggers and multiple speeds provide useful customization for noise versus cooling.
• Dual-ball bearing fans and PWM control reduce long-term wear and keep noise around 21 dBA.

Cons

• Top-exhaust design may not suit all cabinet layouts and requires a flat surface on top of devices for best results.
• While quiet, at higher fan speeds the noise level increases and may be noticeable in very quiet rooms.

Specifications

Dimensions	17 x 13.5 x 1.5 in
Exhaust	Top
Airflow	210 CFM
Noise Level	21 dBA
Bearings	Dual Ball
Fans	Three PWM-controlled dual-ball bearing fans

Our Verdict

The AC Infinity AIRCOM S9 is a practical, good-value cooling solution for home AV setups that need quiet, effective heat management. It offers strong airflow, thoughtful controls, and solid build quality, making it a sensible buy for anyone who wants to protect receivers and consoles without adding distracting noise.

Frequently Asked Questions

Will this fit on standard AV receivers?
Yes, the 17 x 13.5 in footprint is designed to sit atop most receivers and game consoles or inside cabinets with enough clearance.

Is it loud at full speed?
Noise is rated around 21 dBA in normal operation, but higher fan speeds can be more noticeable in very quiet rooms.

Does it require installation tools?
No special tools are required; the unit is largely plug-and-play and intended for quick placement on top of equipment.