| Rating | Where to buy |
 | Amazon.com *Same or similar item |
Naxa NCA-683 Single Din Car Stereo is one of the cheapest mechanical head units on the market. You can play CD, AM/ FM radio, mp3 songs from your flash drive or SD/MMC card with this head unit. You can even connect an mp3 player, or mobile phone via NC-683’s Aux-in port and play songs directly from your mobile device.
What is in the box?
The box contains Naxa NCA-683 head unit, the detachable face panel, remote control, four speaker wires, and mounting accessories, and manual.
Design and features
Naxa NCA-683 has a nice design and comes in black color. It has fold-down detachable face panel and a carrying case for the face. Naxa NCA-683 sports a big multicolor display that looks cool. It has a USB port, an SD/MMC card slot, and an Aux-in port on its face panel. It features Anti-shock, and Anti-skip protection so you can listen to your CD music uninterruptedly.
Naxa NCA-683 Single Din Car Stereo features some useful options for track searching. You can search for a song either by inputting a number of the song, or by entering the first letter of the title of the song, or by switching to different folders by pressing >> or << buttons. These options make life easy especially when playing a large number of songs from a flash drive or SD card.
The navigation buttons both on the face panel and on the remote are conveniently placed. The MODE button lets you switch between sources. Naxa NCA-683 lets you choose from five sources Tuner/ Disk/ SD card/ USB/ Aux to play music. Naxa NCA-683 resumes from the last source played to save you from the hassle of choosing it again. It has four preset equalizers: Pop/ Rock/ Classic/ Flat. You can select bass/ treble/ fader and loud to optimize the output music.
Scanning and storing a radio channel is easy. Radio signal reception is great. Naxa NCA-683 lets you save up to 30 channels at a time.
NAXA NCA-683 supports ID3 Tags for Mp3 songs. When a song is being played, it shows the track title, artist, and album. The full function remote control works fine as long as you keep the remote at no more than 30-degree angle from the IR sensor on Naxa NCA-683 face panel.
The back panel of Naxa NCA-683 has an external antenna connector port for radio reception. Left/ right RCA ports, and ISO sockets.
Performance
Naxa NCA-683 Single Din Car Stereo’s CD tray opens and closes smoothly without any noise. The CD player could even read old CDs with scratches without a delay. We prefer to use the head unit and speakers of the same brand. In this case, we used, NAXA NCS-769 6×9″ 6-way car speaker and the music output was clear with deep bass and high fidelity. The music didn’t distort even when we turned the volume to highest. However, since Naxa NCA-683 can only deliver 4×40 watts of maximum power, so it was a little bit less loud than 200 watts car stereos. Yet, it produced enough sound that we could clearly hear the music 30 feet away from the car while the car windows were closed.
We also played songs from SD card, flash drive, and from the portable mp3 player via the Aux-in port. In all cases, NAXA NCA-683 performed well. The music output distorted for heavy metal tracks when the volume was set at 85 or above. There was hardly any interruption or break in Radio signal. Songs didn’t skip while playing from a CD.
| Pros | Cons |
| Nice radio reception. Clear sound, decent bass, high fidelity; Music playable via CDR/CDRW, MP3, USB, SD card, portable devices through Aux-in. Song information display. Bass and treble control. Nice remote control. | Output distorts when the volume is set above 85%, especially when a heavy metal track is played. |
Conclusion
Naxa NCA-683 Single Din Car Stereo comes with an attractive design and some appealing features for a $40 head unit. Though it is loud enough, music output gets distorted when the volume is set over 85%. In our experience, it would beat some of the $80 car stereos available on the market. It outputs clear sound with decent bass and high fidelity. We highly recommend Naxa NCA-683.
Specifications
* Dimensions: 7.25 x 7.50 x 2.40 [ L x W x H ]
* PLL Electronic Tuning Stereo AM/FM Radio Tuner
* MP3/CD/CD-R/CD-RW Playback with ID3 Text Function
* MP3 (ESP) Anti-Skip Protection
* USB / SD/MMC Card Slot
* Fold Down detachable Face Panel with Carrying Case
* Automatic Memory Preset Store
* Disc Intro/Random/Repeat/Play/Track & Search Function
* Multi-color LCD Display
* Electronic Preset Equalizer (Pop/Rock/Classic/Flat) Controls
* Electronic Encoder Audio (Volume/Bass/Treble/Balance/Fader) Control
* Night Illumination
* Pair of Low-impedance RCA Line-out Plugs
* 4 x 40 Watts High Power Output