Denon

Denon makes home audio and video electronics. In installed systems, the piece most people meet is the AV receiver: it switches the video sources (streaming box, game console, cable box), sends the picture to the TV or projector, and powers the speakers.

Where Denon shows up in a home install

• Home theater and media rooms. Surround-sound AV receivers that drive the front, center, surround, height and subwoofer channels.
• Living rooms and two-channel listening. Stereo receivers and amplifiers for a pair of speakers and a subwoofer.
• Whole-home audio. Many Denon receivers and amplifiers include HEOS, Denon's multi-room streaming system, so music can play in several rooms from one app.

What to ask an installer

• Which receiver fits the number of speakers and rooms you want, and whether it needs to sit in a closet or rack with ventilation.
• How the TV, sources and speakers will be wired, and who supports the system after installation.
• Whether the installer has set up this kind of system before.