Denon AVR-S640H vs Sherwood RX-4508 review

Votes 1 1
Rating 5 5

AV receivers comparison chart

Overall
Denon AVR-S640H
6.2
Sherwood RX-4508
4
6
5
6
inapplicable
5
inapplicable

Denon AVR-S640H vs Sherwood RX-4508 review

Denon AVR-S640H
vs
Sherwood RX-4508

The Denon AVR-S640H vs Sherwood RX-4508 comparison will be extremely helpful for people who want to get a great, powerful receiver with many functions.

Amplifier

The number of channels for receivers is different - 5.2 versus 2.0, respectively, for devices. In terms of power, there are differences, the AVR-S640H has such a ratio W/Ohm - 75/8, 100/6, while the RX-4508 has a power of 100/8. The value of total harmonic distortion is also different, and for the AVR-S640H it is 0.08%, but for the RX-4508 it is 0.09%. None of the compared opponents supports Bi-amping. The model AVR-S640H can transmit an audio signal directly to the amplifier and bypasses any DSP processing.

Connectivity

Wireless Internet connection via WIFI is only possible with AVR-S640H. Each of the receivers has a Bluetooth connector. The AVR-S640H has access to the Spotify service.

Video features

Support for the HDR function can only boast of the AVR-S640H. HDMI signal transmission in standby mode can provide only the AVR-S640H. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the AVR-S640H. HDMI Audio Return Channel is only available on Denon AVR-S640H. HDMI eARC is not supported by the AVR-S640H and the RX-4508. When comparing receivers, it becomes clear that only the Denon AVR-S640H has HDMI CEC. Like most receivers, our models have a built-in phono stage for connecting a vinyl player. There is an ECO mode in AVR-S640H. The Denon AVR-S640H 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.

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General

Item

Denon AVR-S640H
Sherwood RX-4508

Model

AVR-S640H
RX-4508

Brand

Denon
Sherwood

Reviews

200
563

Amplifier

Channels

5.2
2.0

Stereo power (RMS), W/Ohm

75/8, 100/6
100/8

Output impedance, Ohm

8, 6
8

Frequency response

10Hz-100KHz
40Hz-20KHz

THD in stereo, %

0.08
0.09

Audio features

Digital to analog converter (DAC)

192 KHz/32-bit

Bi-amping

Pure direct (straight)

Auto speaker calibration

Audyssey MultEQ

Speaker A/B switching

Other audio features

Audyssey Dynamic Volume, Audyssey Dynamic EQ, Compressed Audio Restorer, Hi-Res audio
has not

Connectivity

Wi-Fi

USB

1 (USB 2.0)
0

Bluetooth

Ethernet (RJ45)

1

DLNA

MHL

Streaming services

Apple Music (AirPlay)

AirPlay, AirPlay 2

Amazon Music

Spotify

Other streaming services

Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud
has not

Extensive connection

HDMI input/output

5/1
0/0

HDMI ARC (Audio Return Channel)

HDMI eARC (Enhanced Audio Return Channel)

HDMI CEC

Digital content protection (HDCP)

HDCP 2.2

Subwoofer output (LFE)

2
0

Headphone output

1 x 6.3
1 x 6.3

Optical digital input

2
0

Coaxial digital input

1
0

Composite input

2
0

Component input/output

0/0
0/0

Phono (MM) input

Front panel connectors

USB, phones, setup mic
phones

Multi channel preamp output

Video features

HDR (High Dynamic Range)

4K signal pass-through

4K/60Hz

8K signal pass-through

HDMI signal pass-through

3D signal pass-through

HDMI pass-through in standby mode

Video conversion

Analog to HDMI scaling

HDMI to HDMI scaling

Dolby Vision

Other video features

BT.2020, HLG
has not

Additional features

Voice control

Amazon Alexa, Google Assistant, Siri, Josh.AI

App control

iPhone, iPad, iPod, Android

Display

colour OSD
fluorescent

Tuner

AM, FM
AM, FM

Sleep timer

Auto power off

ECO mode

Graphical user interface (GUI)

Setup assistant

Firmware update

network, USB

Other additional features

IP Control, Web Control
has not

Multi-room

Multi-room zones

has not
has not

Zone audio output

has not
has not

Zone HDMI output

has not
has not

Multi-room control

has not
has not

RS-232

0
0

Remote control input/output (IR)

0/0
0/0

DC trigger output (12V)

0
0

Multichannel surround

Dolby Atmos

Dolby TrueHD

Dolby Surround

Dolby (other)

Dolby Digital Plus, Dolby Pro Logic
has not

DTS:X

DTS HD Master

DTS Virtual:X

DTS Neural:X

DTS (other)

DTS 96/24, DTS-HD, DTS-EXPRESS, DTS-Surround, DTS Neo:6
has not

Auro-3D

IMAX Enhanced

Multichannel stereo

Audio file formats

MP3

WMA

AAC

WAV

FLAC

ALAC

Other audio file formats

has not
has not

Power

Operational power consumption, W

340
230

Standby consumption, W

0.1

Removable power cord

User manual

Manual

Dimensions

Size W x H x D, cm/inches

43.5 x 15.9 x 33/17 x 6.1 x 13
43.5 x 14.1 x 37.5/17.1 x 5.5 x 14.7

Weight, kg/lbs

7.7/17.2
7.4/16.3

Other

Release year

2018
2014
Denon AVR-S640H
Sherwood RX-4508
Denon AVR-S640H
Sherwood RX-4508

AV receivers SoundInspiration comparison rating

  • better
  • worse
  • 6.2
  • 4
  • 6.2Denon AVR-S640H
  • 4Sherwood RX-4508