FAQ
TL;DR: For this setup, 0 audio returns over HDMI from the Optoma 27HD; “HDMI connector on the projector is an HDMI input.” [Elektroda, superdeko, post #16725434]
Why it matters: If you feed the projector directly, your Denon AVR-2113 won’t get audio; route sources through the AVR first.
Who this is for: Anyone asking how to connect a Denon AVR-2113 to an Optoma 27HD (with Chromecast, PC, or phone) so sound plays on the receiver, not the projector.
Quick Facts
- Connection path that works: source → Denon AVR-2113 (HDMI IN) → AVR HDMI OUT → Optoma 27HD HDMI IN. [Elektroda, Polon_us, post #16721318]
- Optoma 27HD’s HDMI is input-only; use its 3.5 mm audio-out if extracting analog audio. [Elektroda, superdeko, post #16721020]
- No ARC labeling or support reported on the Optoma 27HD’s connectors/manual. [Elektroda, superdeko, post #16725649]
- Casting straight to the projector yields image plus projector-speaker audio, not AVR audio. [Elektroda, superdeko, post #16725434]
How do I wire Denon AVR-2113 to Optoma 27HD so the AVR plays sound?
Connect your sources to the AVR’s HDMI inputs. Run one HDMI cable from the AVR’s HDMI MONITOR OUT to the Optoma’s HDMI IN. Set your source to output audio over HDMI. This path gives picture on the projector and audio on the AVR. [Elektroda, Polon_us, post #16721318]
Does the Optoma 27HD send audio back to the AVR over HDMI (ARC)?
No. The Optoma 27HD’s HDMI is input-only, and users reported no ARC on its connectors or in the manual. Use the projector’s 3.5 mm audio-out only if you must extract analog stereo. [Elektroda, superdeko, post #16725649]
Which HDMI ports should I actually use?
Use the Denon’s HDMI MONITOR OUT to the projector’s HDMI IN. Use any Denon HDMI IN for your sources. Follow the clear OUT/IN labeling to avoid dead audio paths. [Elektroda, 1098678, post #16717405]
Why do I get video but no AVR sound when casting with Chromecast to the projector?
Because the projector is the only HDMI sink in that chain. Audio stays with the projector’s speakers. Route Chromecast into a Denon HDMI input so the AVR decodes audio, then pass video to the projector. “No need to pull the sound out of the projector.” [Elektroda, Polon_us, post #16725453]
Can HDMI from the projector carry sound to the AVR?
No. The projector’s HDMI is not an output. As one reply summarized: “HDMI connector on the projector is an HDMI input.” Use AVR-first routing for sound. [Elektroda, superdeko, post #16725434]
How should I set my laptop’s audio so it plays through the AVR over HDMI?
Open your OS sound settings while a movie plays. Set the default playback device to your HDMI/AVR. This avoids audio staying on laptop speakers and ensures the AVR receives the stream. [Elektroda, Polon_us, post #16721318]
What does the projector’s ‘audio out (jack)’ actually give me?
It outputs analog audio derived from the HDMI input, suitable for powered speakers or an AVR’s analog input. Expect stereo, not surround formats. It’s a fallback if you can’t route through the AVR. [Elektroda, superdeko, post #16721020]
I still have no sound—what quick checks should I run?
Confirm the source’s default audio device is HDMI/AVR. Select the correct HDMI input on the Denon. Try another HDMI cable/port. Keep the source → AVR → projector chain; bypassing it strands audio at the projector. [Elektroda, Polon_us, post #16721318]
Does the Optoma 27HD support ARC at all?
Users found no ARC labeling on the chassis or in the manual, so plan as if ARC is unsupported. Run sources into the Denon to handle audio properly. [Elektroda, superdeko, post #16725649]
How do I connect Chromecast so the AVR decodes audio?
- Plug Chromecast into a Denon AVR-2113 HDMI input.
- Connect Denon HDMI MONITOR OUT to Optoma 27HD HDMI IN.
- Select that HDMI input on the Denon; cast content.
This yields AVR audio and projector video. [Elektroda, superdeko, post #16725434]
Why does everyone say not to “pull” audio from the projector?
Because the clean signal path is source → AVR for decoding, then video → projector. As one expert put it, “no need to ‘pull’ the sound out of the projector,” especially with wired connections. [Elektroda, Polon_us, post #16725453]
Will the projector’s audio-out give me surround sound on the Denon?
No. A 3.5 mm analog output carries two-channel audio. Connect sources to the AVR over HDMI to decode multichannel formats correctly and avoid quality loss. [Elektroda, superdeko, post #16721020]
