My Denon AVC-X4700H runs hot, almost disturbingly hot. My 4 ohm speakers only deliver 87db per watt so are a tough drive, and whilst my front speakers are driven by another amp, the AV amp still drives another 4 speakers and the subwoofer.
The S9 has proved to be fantastic at reducing the running temperatures significantly and the auto temperature control function means you can leave it to its own devices which is a real plus. It turns on/off as required so no hassle there. It generally runs on setting one which is only just audible, but ramps up to setting 2 out of 3 under load.
Overall I'm very pleased with it, its built well, looks good, and is well priced for what it offers. If you own a Denon/Marantz AV amp then these things are a great addition and the temperature reduction will likely significantly increase the product life from excessive heat wear & tear.
| Manufacturer | AC Infinity |
|---|---|
| Part number | AI-ACS9 |
| Item Weight | 3.42 kg |
| Product Dimensions | 34.29 x 43.18 x 3.81 cm; 3.42 kg |
| Item model number | AI-ACS9 |
| Colour | Black |
| Material | Alloy Steel |
| Voltage | 12 Volts |
| Wattage | 35 watts |
| Item Package Quantity | 1 |
| Air Flow Capacity | 2.1E+2 Cubic Feet Per Minute |
| Noise Level | 21 dB |
| Batteries included? | No |
| Batteries Required? | No |
