| Composition | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Tuner | has a digital | has a digital |
| Cassette deck | | yes |
| CD players | yes | yes |
| MP3-players | yes | no |
| DVD-player | no | |
| Blu-ray player | no | no |
| Amplifier | yes | yes |
| Equalizer | yes | yes |
| Navigator | no | no |
| TV tuner | no | |
| General characteristics | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Nominal and maximum power | | 4x22 W/4x47 W |
| Management changer | CD | CD |
| Maximum power | 4x50 W | |
| CD-changer interface is | custom | custom |
| Size | 2 DIN | |
| Color | black | |
| Supported carriers and formats | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Formats | CD Audio, MP3, WMA, AAC | CD-Audio |
| Media | CD-R, CD-RW, iPod | cassette |
| Display | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Display type | monochrome | multicolor |
| Adjust backlight brightness | yes, automatic | yes, automatic |
| Cassette deck | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Auto tape | | yes |
| Noise reduction | | DolbyB |
| Auto reverse | | yes |
| To search for music on cassette | | yes |
| Skip pause on the tape | | yes |
| Management | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Multicolor lighting | yes | yes |
| Infrared remote | yes | yes |
| Auto plants | yes | |
| Joystick on the steering wheel | no | no |
| Pause when speaking on the phone | yes | yes |
| Memory disk names | | yes |
| Interfaces | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Inputs | USB | |
| Audio input on the front panel | yes | |
| Bluetooth Support | yes | |
| Outputs | | audio |
| Support A2DP profile | no | |
| Connecting the ISO | | yes |
| Gold-plated connectors | | yes |
| Protection | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Security codes | yes | |
| Detachable panel | | yes |
| Tuner | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Dynamic range | 93 dB | |
| Support band | FM, MW, LW | FM, MW, LW |
| RDS | RDS RDS/EON, RDS, PTY | RDS |
| Tuner with long reception | yes | |
| Number of preset FM/AM | 18 / 3 | |
| Additional information | KENWOOD DPX-503UY | KENWOOD DPX-4020 |
| Super-bass | | yes |
| Adjusting the voice | yes | yes |
| Disabling voices | | yes |
| The number of bit DAC | 24 | |
| Single-bit DAC architecture | | yes |
| Signal/noise ratio | 110 dB | |
| CD-text | yes | yes |
| ID3 tag support | yes | |
| Resampling audio | | 8 |
| Tone compensation | | yes |
| Dimensions (WxHxD) | 178x100x160 mm | 180x100x160 mm |
| Weight | 1600 g | |
| Features | | Sleep timer (20/40/60 min). Possibility to change the button illumination. Calendar with memory. System of memorizing the audio settings. Playback of CD-R/RW discs. Tape counter. |
