LOCATION AND FUNCTION OF CONTROLS

WIRES CONNECTION

WHITE

RCA OUTPUT

 

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648UA

 

MODE

 

 

 

 

/ PTY

7

 

 

 

BAND

RED

RCA OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

/ APS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

2 INT

 

 

 

3 RPT

 

 

 

 

 

 

4 RDM

 

 

 

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6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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1.RELEASE BUTTON

Press the REL button to release the front control panel from the unit chassis, then pull it up a little to remove from the unit chassis.

2.POWER ON/OFF & MUTE

When the unit is power off, the unit switches on by pressing any button except the EJECT and the RELEASE button.

When the unit is power on, press and hold the power button for more than 0.5 seconds, the unit goes into power off mode.

When the unit is power on, press the power to switch the MUTE state on/off.

3.CD SLOT

4.LCD Display

5.EJECT KEY

In the power on state, the loaded disc can be ejected by pressing the EJ key.

6&7. TUNE, SEEK, TRACK, SKIP UP / DOWN BUTTONS a) During RADIO mode:

Press the >> or << button briefly to manual tune up/down for the desired radio station frequency step by step.

Press and hold the >> or << button for longer 0.5 seconds, to automatically tune up/down for the radio station frequency of strong signal.

ISO SOCKET

ANTENNA JACK

ISO SOCKET SKETCH

 

 

CONNECTOR A

CONNECTOR B

1.

1. Rear Right Speaker (+)

2.

2. Rear Right Speaker (-)

3.

3. Front Right Speaker (+)

4. Memory +12V

4. Front Right Speaker (-)

5. Auto Antenna Output

5. Front Left Speaker (+)

6.

6. Front Left Speaker (-)

7. 12V (To Ignition Key)

7. Rear Left Speaker (+)

8. GROUND

8. Rear Left Speaker (-)

SPECIFICATION

 

 

GENERAL

 

 

Supply Voltage

DC 12 V. Negative Ground

Current Consumption

Max.10A

 

Power Output

4 x 60 W

 

Number of channels

2 STEREO channels.

 

Unit Dimensions

(L x W x H): 7” x 6.5” x 1.97”

 

178 x 165 x 50 (mm)

FM SECTION

 

 

Frequency range

87.5Mhz - 108Mhz

(Europe)

 

87.5 Mhz - 107.9Mhz

(U.S.A.)

Effective sensitivity

3uV.

 

I.F Frequency

10.7MHz.

 

AM SECTION

 

 

Frequency range

522Khz - 1620Khz

(Europe)

 

530khz - 1710Khz

(U.S.A.)

Effective sensitivity

40dB.

 

I.F Frequency

450KHz

 

Preamp Output

1 V Output

 

CD PLAYER

 

 

System

MP3 Audio System.

 

Suitable CDs

MP3, CD,CD-R,CD-RW Disc

Frequency characteristics

20Hz-100Hz < 5dB

 

 

10KHz-20KHz < 5dB.

 

S/N Ratio to CD

50dB [1KHz]

 

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Boss Audio Systems 648UA user manual Release Button, Power ON/OFF & Mute, CD Slot, Eject KEY

648UA specifications

Boss Audio Systems 648UA is a highly regarded car audio system designed for those seeking an impressive sound experience on the road. This model stands out with its combination of functionality, versatility, and cutting-edge technology, making it an ideal choice for both casual listeners and audio enthusiasts.

One of the primary features of the 648UA is its user-friendly interface. The system is equipped with a front USB port and an auxiliary input, allowing users to connect a wide range of devices, including smartphones and MP3 players. This connectivity ensures that you can play your favorite tunes directly from your personal library without any hassle.

The 648UA boasts Bluetooth technology, enabling wireless streaming of music and hands-free calling. This feature not only enhances the overall convenience but also facilitates safe driving by allowing you to take calls without reaching for your phone. The Bluetooth range is robust, ensuring a stable connection even when your device is in a different part of the vehicle.

In terms of audio quality, the Boss Audio Systems 648UA delivers a powerful performance with its built-in amplifier. This amplifier supports 50 watts x 4 max power output, providing clear and dynamic sound across a wide range of frequencies. The adjustable equalizer enables users to customize the audio settings, allowing for a more personalized listening experience that suits various genres of music.

Moreover, the system includes a removable front panel for added security. This feature is crucial for protecting your investment from theft, as the detachable faceplate can be easily removed when the vehicle is parked. Additionally, the LCD display is bright and easy to read, even in direct sunlight, ensuring that you can navigate through your music effortlessly.

Another noteworthy characteristic of the 648UA is its compatibility with various audio formats. It supports MP3, WMA, and WAV files, making it versatile for different audio sources. The device also features a radio tuner capable of receiving AM/FM signals, offering even more listening options.

Overall, the Boss Audio Systems 648UA combines advanced technology with practical features, making it a fantastic option for anyone looking to enhance their in-car audio experience. With its Bluetooth capability, powerful sound output, and ease of use, this car stereo system is sure to satisfy the audio needs of any driver.