When building a Dolby Atmos 9.1.4 system, the number of amplified channels required grows quickly. Below is the 9.1.4 design overview from Dolby.
Dolby Atmos 9.1.4 Structure:
- 6 channels bridged at 265w/ch @ 8 ohms || 390w/ch @ 4 ohms, or
- 12 channels not bridged at 77w/ch @ 8 ohms || 140w/ch @ 4 ohms, or
- A combination of those based on the power requirements of your atmos/in ceiling speakers
- Amplifier 1, 6 Channels Bridged : Left, Center, Right, Wide Right, Wide Left, with one bridged channel open
- Amplifier 2:
- Bridged: Left Surround, Right Surround, Rear Right, Rear Left
- Not Bridged: Front Left/Right Ceiling + Rear Left/Right Ceiling
Here is what they look like racked. While they can hold their own weight with the face, these amplifiers are way too heavy to rack without help. I installed shelves that can slide out to ease installation and support servicing. I selected Kendall Howard 20 inch vented sliding shelves. The rack holes line right up on those shelves with a thin foam spacer under the amp.