JVC KD-G646, KD-G645 manual Specifications, FM Tuner, AM Tuner

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Specifications

AUDIO AMPLIFIER SECTION

Maximum Power Output:

Front/Rear:

50 W per channel

Continuous Power Output (RMS):

Front/Rear:

19 W per channel into 4 Ω,

 

40 Hz to 20 000 Hz at no more

 

than 0.8% total harmonic

 

distortion.

Load Impedance:

4 Ω (4 Ω to 8 Ω allowance)

Tone Control Range:

 

Bass:

±12 dB at 60 Hz

Mid-range:

±12 dB at 1 kHz

Treble:

±12 dB at 10 kHz

Frequency Response:

40 Hz to 20 000 Hz

Signal-to-Noise Ratio:

70 dB

Line-Out Level/

2.5 V/20 kΩ load (full scale)

Impedance:

 

Output Impedance:

1 kΩ

Subwoofer-Out Level/

2.5 V/20 kΩ load (full scale)

Impedance:

 

Other Terminal:

AUX (auxiliary) input jack, USB

 

input jack

TUNER SECTION

Frequency Range:

FM:

87.5 MHz to 108.0 MHz

AM:

531 kHz to 1 602 kHz

FM Tuner

Usable Sensitivity:

11.3 dBf (1.0 μV/75 Ω)

50 dB Quieting

16.3 dBf (1.8 μV/75 Ω)

Sensitivity:

 

Alternate Channel

65 dB

Selectivity (400 kHz):

 

Frequency Response:

40 Hz to 15 000 Hz

Stereo Separation:

30 dB

AM Tuner

Sensitivity/Selectivity: 20 μV/35 dB

CD PLAYER SECTION

Type:

Compact disc player

Signal Detection

Non-contact optical pickup

System:

(semiconductor laser)

Number of Channels:

2 channels (stereo)

Frequency Response:

5 Hz to 20 000 Hz

Dynamic Range:

96 dB

Signal-to-Noise Ratio:

98 dB

Wow and Flutter:

Less than measurable limit

MP3 Decoding Format: (MPEG1/2 Audio Layer 3)

Max. Bit Rate:

320 kbps

WMA (Windows Media® Audio) Decoding Format:

Max. Bit Rate:

320 kbps

USB SECTION

USB Standard:

USB 1.1, USB 2.0

Data Transfer Rate

Max. 12 Mbps

(Full Speed):

 

Storage:

Less than 8 GB (1 partition type)

Compatible Device:

Mass storage class (except HDD)

Compatible File System:

FAT 32/16/12

Playable Audio Format:

MP3/WMA

Max. Current:

500 mA

GENERAL

Power Requirement:

Operating Voltage:

DC 14.4 V

 

(11 V to 16 V allowance)

Grounding System:

Negative ground

Allowable Operating

0°C to +40°C

Temperature:

 

Dimensions (W × H × D): (approx.)

Installation Size:

182 mm × 52 mm × 160 mm

Panel Size:

188 mm × 58 mm × 6 mm

Mass:

1.3 kg (excluding accessories)

Design and specifications are subject to change without notice.

ENGLISH

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Contents Instructions How to forcibly eject a disc How to reset your unitThank you for purchasing a JVC product Possible performance from the unitContents Control panel KD-G646/KD-G645 Parts identificationDisplay window Main elements and features Installing the lithium coin battery CR2025Standby/on/attenuator button Basic operations ~ Turn on the power Basic settingsFor FM/AM tuner ⁄ Adjust the volume Getting startedRadio operations When an FM stereo broadcast is hard to receiveStoring stations in memory Start searching for a stationListening to a preset station Manual presettingPlaying a disc in the unit Playing from a USB deviceTo fast-forward or reverse the track If a USB device has been attachedTo go to the next or previous folder for MP3/WMA Prohibiting disc ejection Other main functionsChanging the display information While playing an audio CD or CD TextSound adjustments Adjusting the soundSelecting the playback modes Select a PSM item Adjust the PSM item selected Finish the procedureIndication, Range Indications Selectable settings, reference Title assignment Adjust the volumeTo erase the entire title Select FM/AM Show the title entry screenTo keep discs clean MaintenanceHow to handle discs Moisture condensationMore about this unit Playing an MP3/WMA disc General settings-PSM Changing the sourceTitle assignment Symptoms Remedies/Causes TroubleshootingHave intended Recorded Turn off the power then on againAlbum name Noise is generatedSpecifications FM TunerAM Tuner Having Trouble with operation? Parts list for installation and connection Precautions on power supply and speaker connectionsRemoving the unit When using the optional stay / 若選用支撐架Typical connections / 典型的接線方法 Electrical ConnectionsLeads of this unit unused 將L/O MODE設定

KD-G645, KD-G646 specifications

The JVC KD-G646 and KD-G645 are standout models in the realm of in-car audio systems, designed to enhance your listening experience on the road. Equipped with advanced features and user-friendly technologies, these head units bring entertainment and functionality to your vehicle.

One of the prominent features of both the KD-G646 and KD-G645 is their ability to play various audio formats. They support MP3, WMA, and WAV files, enabling users to enjoy their favorite music stored on CDs or USB drives. The inclusion of a USB port not only provides a direct connection for digital playback but also facilitates charging for compatible devices, ensuring your gadgets remain powered during long drives.

These models boast a robust 50 watts per channel output, ensuring high-quality sound reproduction that can fill any vehicle. With a built-in four-channel amplifier, the audio clarity is notably enhanced, bringing out the finer details in music. Additionally, both units offer customizable equalizer settings, allowing users to tweak sound profiles to match personal preferences or specific genres of music.

Another essential aspect of the JVC KD-G646 and KD-G645 is their compatibility with satellite radio and optional Bluetooth connectivity. When equipped with a Bluetooth adapter, users can stream music wirelessly from their smartphones and even take hands-free calls. This integration fosters a safer driving environment by minimizing distractions and keeping the driver focused on the road.

The user interface of these head units is intuitive, featuring a clear LCD display that shows track information, equalizer settings, and source selection. The easy-to-navigate controls ensure that adjustments can be made without diverting attention from driving. Moreover, the selectable button illumination adds a stylish touch that can be tailored to suit individual aesthetic preferences.

Durability is another characteristic that defines the JVC KD-G646 and KD-G645. Designed to withstand the rigors of daily use, these models are constructed with high-quality materials to ensure longevity. They also come with a detachable faceplate for added security, making it easier to protect the unit from theft when leaving the vehicle.

In summary, the JVC KD-G646 and KD-G645 are feature-rich car audio systems that prioritize sound quality, user convenience, and technological integration. With their compatibility with various audio formats, robust amplification, Bluetooth streaming options, and an intuitive interface, these head units are an excellent choice for anyone looking to elevate their in-car audio experience.