Every one of the seven HDMI inputs on this AVENTAGE-series receiver is full HDMI 2.1 with 8K@60Hz and 4K@120Hz support — no compromises on which port you plug your console or media player into. Three HDMI outputs (two main plus one dedicated zone) make multi-room or dual-display setups straightforward. Dual optical and one coaxial digital input give plenty of room for legacy sources alongside a built-in MM phono stage. Yamaha's Surround:AI technology dynamically optimizes the 7.2-channel output in real time.
7.2-channel AVENTAGE 8K AV receiver with seven HDMI 2.1 inputs and Surround:AI.
Device Information
- Manufacturer
- Yamaha
- Release Year
- 2021
- Model Number
- RX-A4A
- Category
- Audio Equipment
Available Ports
| Connector | Quantity | Label | Notes |
|---|---|---|---|
| HDMI 2.1 (Type A – Standard) | 7 | HDMI IN 1-7 | All inputs support 8K@60Hz, 4K@120Hz, VRR, ALLM |
| HDMI 2.1 (Type A – Standard) | 2 | HDMI OUT 1-2 | 8K output, HDMI OUT 1 supports eARC |
| HDMI 2.0b (Type A – Standard) | 1 | HDMI OUT 3 (ZONE) | Dedicated zone output |
| Optical TOSLINK (S/PDIF) | 2 | OPTICAL IN | Digital audio inputs, supports up to 96kHz |
| Coaxial S/PDIF (RCA Digital) | 1 | COAXIAL IN | Digital audio input, supports up to 192kHz |
| RCA Stereo Audio | 3 | ANALOG IN | Stereo analog audio inputs |
| RCA Stereo Audio | 1 | PHONO | Dedicated phono input with built-in MM phono preamp for turntable |
| USB Type-A (USB 2.0) | 1 | USB | Media playback and firmware updates |
| RJ-45 (100BASE-TX Fast Ethernet) | 1 | NETWORK | 100Base-TX/10Base-T wired network |
| 6.35mm TRS (1/4 inch Audio) | 1 | PHONES | Front-panel headphone output |
Notes & Compatibility
All 7 HDMI inputs are HDMI 2.1 (8K@60Hz, 4K@120Hz, VRR, ALLM, HDCP 2.3). HDMI OUT 1-2 support 8K, HDMI OUT 3 is dedicated zone output. eARC on HDMI OUT 1. 110W per channel. AVENTAGE anti-resonance chassis with fifth foot. Surround:AI real-time optimization. 9 pre-outs (7.2 channels). MusicCast wireless multi-room. Optical supports up to 96kHz, coaxial up to 192kHz.
Common questions
How many ports does the Yamaha RX-A4A (2021) have?
The Yamaha RX-A4A (2021) has 20 ports in total: 9 × HDMI 2.1 (Type A – Standard), 1 × HDMI 2.0b (Type A – Standard), 2 × Optical TOSLINK (S/PDIF), 1 × Coaxial S/PDIF (RCA Digital), 4 × RCA Stereo Audio, 1 × USB Type-A (USB 2.0), 1 × RJ-45 (100BASE-TX Fast Ethernet) and 1 × 6.35mm TRS (1/4 inch Audio).
What kinds of ports does the Yamaha RX-A4A (2021) have?
By connector family, the Yamaha RX-A4A (2021) has 10 HDMI, 8 Audio, 1 USB and 1 Network.
How many USB ports does the Yamaha RX-A4A (2021) have?
The Yamaha RX-A4A (2021) has 1 USB port: 1 × USB Type-A (USB 2.0).
What video connections does the Yamaha RX-A4A (2021) have?
The Yamaha RX-A4A (2021) has 10 ports that can carry video: 9 × HDMI 2.1 (Type A – Standard) and 1 × HDMI 2.0b (Type A – Standard).
Does the Yamaha RX-A4A (2021) have a headphone jack?
No. The Yamaha RX-A4A (2021) has no 3.5 mm headphone jack. It does have a 6.35 mm (1/4-inch) jack: 1 × 6.35mm TRS (1/4 inch Audio).
