It’s strongly recommended to compare different receivers if you want to choose the best one: Denon AVRS730H vs Yamaha AVENTAGE RX-A680.
AV receivers under review have the same number of channels. In terms of power, there are differences, the AVRS730H has such a ratio W/Ohm - 75/8, 110/6, while the AVENTAGE RX-A680 has a power of 115/8, 145/6. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the AVRS730H received the model 384 KHz/32-bit, but the AVENTAGE RX-A680 is equipped with Burr-Brown 384 KHz/32-bit. The Bi-amping function is implemented only in the Yamaha AVENTAGE RX-A680. The model AVENTAGE RX-A680 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. Both devices can work with such Apple Music services: AirPlay, AirPlay 2. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Denon AVRS730H works with Deezer, TIDAL, iHeart Radio, Sirius XM, Sound Cloud, Napster, but the Yamaha AVENTAGE RX-A680 works with Deezer, TIDAL, Pandora, Napster, SiriusXM, Qobuz. The quality of 4K/60Hz signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. Signaling over HDMI in standby mode can provide the AVRS730H and the AVENTAGE RX-A680. Video scaling is only possible with the AVENTAGE RX-A680. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the AVRS730H has 6/1, and the AVENTAGE RX-A680 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the AVENTAGE RX-A680. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. The AVRS730H has support for the standard HDCP 2.2, compared to the AVENTAGE RX-A680, which supports the standard HDCP 2.3. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player.
Ability to create 2 Multi zones inherent in both AV receivers. For voice control in the AVRS730H is used Amazon Alexa, Google Assistant, Siri, Josh.AI, but in the AVENTAGE RX-A680 is used Amazon Alexa, Google Assistant. There is an ECO mode in either AV receiver. The Denon AVRS730H and the Yamaha AVENTAGE RX-A680 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available both models. A DTS:X surround technology is supported by devices from our comparison.