Denon AVR-S540BT vs Yamaha RX-V677 review

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Denon AVR-S540BT vs Yamaha RX-V677 – that is a question.

Amplifier

The number of channels for receivers is different - 5.2 versus 7.2, respectively, for devices. In terms of power, there are differences, the AVR-S540BT has such a ratio W/Ohm - 70/8, 90/6, while the RX-V677 has a power of 90/8, 150/4. The value of total harmonic distortion is also different, and for the AVR-S540BT it is 0.08%, but for the RX-V677 it is 0.09%.

Audio features

The manufacturer installed different DACs, the AVR-S540BT received the model 192 KHz/32-bit, but the RX-V677 is equipped with Burr-Brown 192 KHz/24-bit. The Bi-amping function is implemented only in the Yamaha RX-V677. The model RX-V677 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.

Connectivity

Wireless Internet connection via WIFI is only possible with RX-V677. Each of the receivers has a Bluetooth connector. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Denon AVR-S540BT works with TIDAL, Pandora, but the Yamaha RX-V677 works with Pandora, Napster, JUKE.

Video features

Support for the HDR function can only boast of the AVR-S540BT. 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 AVR-S540BT and the RX-V677. Video scaling is only possible with the RX-V677. Operation with the Dolby Vision is only possible with the AVR-S540BT.

Extensive connections

The number of HDMI inputs/outputs varies depending on the receiver, the AVR-S540BT has 5/1, and the RX-V677 has 6/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the AVR-S540BT and the RX-V677. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. AVR-S540BT and RX-V677 support the standard HDCP 2.2. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in either AV receiver. The Denon AVR-S540BT and the Yamaha RX-V677 can be properly configured using the setup assistant.

Multichannel surround

Generally no support for a Dolby Atmos multichannel audio format. A DTS:X surround technology is not supported by devices from our comparison.