ASK904B.64 - Car hands-free kit BOSS - Free user manual and instructions

Product Type	Car Hands-Free Kit with Bluetooth Amplifier
Brand	BOSS
Model	ASK904B.64
Bluetooth Version	4.0
Bluetooth Range	33 ft / 10 m (Class 2)
Bluetooth Profiles	A2DP
Amplifier Channels	4
Max Continuous Output	500W (all channels driven)
Peak Power per Channel (4Ω)	125W
RMS Total Power Output	150W
Amplifier Class	AB
Frequency Response	20-25 kHz
Input Impedance	22k Ohm
Power Supply	14.4 VDC (10.8 - 16 V allowable)
Grounding System	Negative type
Maximum Current Consumption	15 A
USB Output	5 VDC @ 1 A
Fuse Rating	15 A (ATO type)
Chassis Dimensions (H x D x W)	1.75 in x 7.8 in x 3.8 in (44.5 mm x 198 mm x 96.5 mm)
Controller Dimensions (H x D x W)	0.81 in x 3.75 in x 1.85 in (20.5 mm x 95.2 mm x 47 mm)
Controller Cable Length	20 ft / 6 m
Unit Weight	2.08 lbs / 0.94 kg
Storage Temperature	5°F to 113°F (-15°C to 45°C)
Operation Temperature	14°F to 104°F (-10°C to 40°C)
Mounting Options	Flush mount, surface mount, handlebar mount
Protection Circuitry	Thermal, overload, speaker short protection
Maintenance	Wipe with dry cloth; do not submerge; disconnect battery before installation
Safety	Use with 12V negative ground only; consult professional installer; do not operate while driving
Repairability	Refer to authorized BOSS service center; do not attempt self-service
Included Accessories	MC900B amplifier, multi-function controller, flush mount bezel, handlebar bracket & hardware kit, power harness, user manual, warranty card

Frequently Asked Questions - ASK904B.64 BOSS

How do I pair my phone with the BOSS ASK904B.64?

Press and hold the Power/Source button for 2 seconds to enter pairing mode. The blue LED will flash. On your phone, go to Bluetooth settings, search for 'MC900B', and select it. Enter passcode '0000' if prompted. A confirmation tone indicates successful pairing.

Why is there no sound from the speakers?

Check that the volume is not muted or too low. Ensure your device is playing audio and the Bluetooth connection is active. Also verify the amplifier is powered on and the speaker wires are connected correctly. If using AUX, ensure the correct source is selected (short press Power button to toggle).

Can I use the AUX input and Bluetooth at the same time?

Yes, the MC900B can have both connected. When in AUX mode (red LED), Bluetooth devices remain paired but audio will only play from the AUX source. To switch, short press the Power button.

How do I reset the Bluetooth memory to pair a new device?

Quick press the Power button twice so all blue LEDs flash. Then press and hold the Play/Pause button for 10 seconds until a confirmation tone. The unit is now ready to pair a new device as per the initial pairing steps.

What is the power requirement for the ASK904B.64?

It requires a 12V battery with negative grounding. The unit operates on 14.4 VDC (10.8-16 V allowable) and draws a maximum of 15A. Use a 15A ATO fuse for protection. Always disconnect the battery negative terminal before installation.

How do I mount the ASK904B.64?

The kit supports three mounting methods: flush mount using the provided bezel (cutout 3-3/16 x 1-11/16 inches), surface mount with screws, or handlebar mount using the stainless steel clamp. Refer to the manual for detailed instructions.

What should I do if the unit becomes unresponsive?

Disconnect power for at least 10 seconds to reset the unit. If the issue persists, check the fuse and wiring. If still not working, contact BOSS technical support at 1-800-999-1236.

Can I charge my phone using the USB port?

Yes, the USB port provides 5V DC at 1A for charging devices. Note that it is not a data connection.

Is the ASK904B.64 waterproof?

It has a weather-resistant design but should not be submerged in or under water. Avoid direct exposure to heavy rain or pressure washing.

How do I adjust the volume?

Use the Volume Up and Volume Down buttons on the multifunction controller. For best performance, set your Bluetooth device's volume to 100% and then adjust using the controller.

USER MANUAL ASK904B.64 BOSS

www.bossaudio.com | 800.999.1236

Tech Support: www.bossaudio.com/support

Red: There are a moderate or slight by regineral in the U.S. and other countries.

1. 2017年1月1日，公司与上海

0614

PRINTED IN CHINAVER:1.0 EN

USER MANUAL

QUICK INSTALLATION GUIDE

MC900B

Two electronic devices: a black rectangular device labeled 'BOSS' and a black control panel with 'BOSOCS' and 'SRC' buttons (no readable text beyond branding)

BLUETOOTH® ENABLED

4-CHANNEL AMPLIFIER

BOSS®

AUDIO SYSTEMS

FEATURING

HANDLEBAR MOUNT REMOTE CONTROLLER

TABLE OF CONTENTS

BEFORE YOU START 2

IMPORTANT SAFETY PRECAUTIONS

INSTALLATION PRECAUTIONS

WIRE DIAGRAM 3

BEFORE INSTALLING THIS PRODUCT----4

TECHNICAL SUPPORT

SUGGESTED MOUNTING METHODS----5

FLUSH MOUNT

SURFACE MOUNT

HANDLEBAR MOUNT

GETTING STARTED 6

All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of AVA Enterprises Inc.

Copyright © 2014 AVA Enterprises Inc.

BOSS®

AUDIO SYSTEMS

Thank you for purchasing this

AUDIO SYSTEMS

MC900B Bluetooth Amplifier

Please read through these instructions carefully so you will know how to operate your model properly.

After you have finished reading the instructions, keep this document in a safe place for future reference.

THIS PACKAGE CONTAINS

1- MC900B Bluetooth 4-CH Amplifier
1- Multi-Function Controller
1- Flush Mount Bezel
1- Handlebar Mounting Bracket & Hardware Kit
1- Power Harness
1- User Manual
1- Warranty Card

Bluetooth®

The Bluetooth ^* word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks is under license.

Other trademarks and trade names are those of their respective owners.

BOSS®

AUDIO SYSTEMS

BEFORE YOU START

IMPORTANT SAFETY PRECAUTIONS

■ BE SURE TO OBSERVE THE FOLLOWING GUIDELINES:
- Do not turn up the volume so high that you can't hear what's around you. - Use caution or temporarily discontinue use in potentially hazardous situations.
- Do not operate mobile video equipment while driving a motorized vehicle – safe driving and safety consideration of others should always be your highest priority. - Set your volume control at a low setting, then slowly increase the sound until you can hear it comfortably without distortion, or ear discomfort.
■ In the event you should notice smoke, strange noises or odor from this product, or any other abnormal signs, immediately turn off the power and consult your dealer or the nearest authorized BOSS AUDIO Service Center. Using this product in this condition may result in permanent damage to the system.

INSTALLATION PRECAUTIONS

WARNING - Always consult with a professional installer

■ Do not attempt to install or service this product by yourself. Installation or servicing of this product by persons without professional training and experience in electronic equipment and motorized vehicle accessories may be dangerous and could expose you to the risk of electric shock, injury or other hazards
■ Refer any repairs to a qualified BOSS AUDIO SYSTEMS Service Center
■ The MC900B should be powered directly to a vehicles battery
■ When wiring directly to the vehicles battery, be sure to disconnect the batteries negative terminal wire before starting any wiring procedures, if extending the main power wire, it is suggested that an optional fuse and fuse holder (not included) with minimum rating of 20 Amperes be in-line with the positive battery terminal
■ The ground cable length should not exceed 18-inches (See wiring diagram pg 4)
■ The MC900B has a weather resistant design, it should not be submerged in or under water under any circumstances
■ Use only the installation parts provided with the MC900B

ION!! Using other mounting methods may void this warranty

BOSS®

AUDIO SYSTEMS

WIRE DIAGRAM
ENGLISH

graph TD
    A["Pre-AMP OUTPUT"] --> B["(R) OUTPUT RED (L) OUTPUT WHITE"]
    A --> C["(R) INPUT RED (L) INPUT WHITE"]
    A --> D["AUX INPUT"]
    A --> E["USB CHARGING (1A MAX)"]
    E --> F["INSERT"]
    F --> G["ORANGE"]
    G --> H["OPTIONAL BACKLIGHTING ON/OFF CONTROL (DO NOT GROUND OR CONNECT TO +12V)"]
    H --> I["BACK"]
    I --> J["CHASSIS GROUND POINT"]
    J --> K["NETAL FRAME"]
    K --> L["PINK ANTENNA (DO NOT CUT)"]
    L --> M["+12V YELLOW BATTERY"]
    M --> N["FUSE REPLACEMENT WITH ATO TYPE ONLY"]
    N --> O["+15 AMP*"]
    O --> P["FUSE REPLACEMENT WITH ATO TYPE ONLY"]
    P --> Q["+12V RED IGNITION"]
    R["4-OHM SPEAKERS"] --> S["WHITE + LEFT CHANNEL 1"]
    R --> T["WHITE/BLK"]
    R --> U["GRAY + RIGHT CHANNEL 1"]
    R --> V["GRAY"]
    R --> W["GREEN + LEFT CHANNEL 2"]
    R --> X["GREEN/BLK"]
    R --> Y["VIOLET + RIGHT CHANNEL 2"]
    R --> Z["VIOLET/BLK"]
    S --> AA["+12V BLUE REMOTE OUT (500mA MAX)"]
    T --> AB["+12V BLUE REMOTE OUT (500mA MAX)"]
    U --> AC["+12V BLUE REMOTE OUT (500mA MAX)"]
    V --> AD["+12V BLUE REMOTE OUT (500mA MAX)"]
    W --> AE["+12V BLUE REMOTE OUT (500mA MAX)"]
    X --> AF["+12V BLUE REMOTE OUT (500mA MAX)"]
    Y --> AG["+12V BLUE REMOTE OUT (500mA MAX)"]
    Z --> AH["+12V BLUE REMOTE OUT (500mA MAX)"]

ION!! Do not ground or short the PINK antenna wire
3

AUDIO SYSTEMS

BEFORE INSTALLING THIS PRODUCT

Illustration of a hand holding a battery with an arrow pointing to its terminals (no text or symbols present)

To avoid potential shorts in the electrical system, be sure to disconnect the (−) battery cable before installation. Use this unit with a 12-volt battery and negative grounding only. Failure to do so may result in a fire or malfunction.

To avoid short-circuiting, cover any disconnected leads with insulating tape. It is especially important to insulate any unused wires, which if left uncovered may cause a short circuit. When connecting other devices to this product, refer to the manual for the product to be connected. The black cable is ground, make sure to connect the ground wire first.

Ensure that the ground cable is properly connected to metal parts of the vehicles body frame or direct to the battery if your vehicle does not have a grounded chassis frame. The ground cable of this units power amp and a second powered system must be connected to the frame separately with different screws. If the screw for the ground wire loosens or falls out, it could result in fire or malfunction.

TECHNICAL SUPPORT

1-800-999-1236

www.bossaudio.com/support

TOOLS NEEDED:

Wrench and/or Pliers

2 Phillips screwdriver

Crimp tool
Electrical tape

AUDIO SYSTEMS
4

SUGGESTED MOUNTING METHODS

The MC900B can mounted in three different configurations:

FLUSH MOUNT

The flush mount quick mount bezel requires no screws a, use cutout dimensions: 3-3/16" W x 1-11/16" H (82mm x 43mm)

SURFACE MOUNT

The flush mount bezel has two recessed screw holes to facilitate the included two oval-head screws.

HANDLEBAR MOUNT

Use provided pan-head screws and stainless steel clamp, there are three mounting variations to secure the stainless steel clamp, try the best one for your application, securely tighten the stainless clamp to fit your application.

To release the MC900B controller from the mounting bezel, insert a small jewellers screwdriver into the left / right slots of the bezel.

5

BOSS® AUDIO SYSTEMS

GETTING STARTED

GETTING TO KNOW YOUR MC900B MULTIFUNCTION CONTROLLER (MFC)

1

MFC - MULTIFUNCTION CONTROLLER

2

POWER / SOURCE - RED = AUX-IN MODE / BLUE = BT MODE

3

VOLUME UP

4

NEXT TRACK / FAST FORWARD

5

PLAY/PAUSE

6

VOLUME DOWN

7

PREVIOUS TRACK / FAST REWIND

8

BLUETOOTH PAIRING INDICATOR - BLUE COLOR

BOSS® AUDIO SYSTEMS

6

BLUETOOTH OPERATION

PAIRING & DISCOVERING A NEW BLUETOOTH CONNECTION

1) Power on the MC900B by pressing and holding down the Power ② button for 2 seconds, the Bluetooth blue LED will start to flash, and a confirmation tone will be heard from the speakers signalling that the MC900B is now ready for Bluetooth pairing.

NOTE: You have 2 minutes before you must restart this procedure over again.

2) Now that the MC900B is in pairing mode:

ANDROID users:

a. Go into the Settings Menu of your device
b. Enter the Bluetooth Menu and press SCAN
c. "MC900B" will now be display under AVAILABLE DEVICES
d. If prompted, enter passcode: "0000"

iOS users:

a. Go into the Settings Menu of your IOS device
b. Enter the Bluetooth Menu
c. "MC900B" will now be displayed
d. If prompted, enter passcode: "0000"

3) If the MC900B is not seen, repeat the above steps to refresh the "Device List"

4) When the connection is successful you will hear a confirmation tone, you are now ready to stream music from your devices favorite media player to the MC900B

To avoid battery exhaustion be sure to run the vehicles engine while using this product. Using this product without running the engine can drain the battery.

BLUETOOTH OPERATION

RECONNECTION

1) Power on the MC900B and your last paired device Bluetooth.
2) The unit will now automatically reconnect, and a confirmation tone will be heard from the speakers
3) If your device was previously paired with the BOSS AUDIO MC900B, but it wasn't the last paired device:
a. Ensure no other devices are currently paired
b. Enter the Bluetooth Menu on your device being paired
c. "MC900B" will display under AVAILABLE DEVICES
d. Choose the "MC900B" to reconnect

4) If the device is out of range from the MC900B, it will disconnect automatically:

a. To reconnect once device is back in range, press the Power ② button once b. The MC900B will now reconnect to the device, a confirmation tone will be heard from the speakers

CLEARING PREVIOUSLY PAIRED DEVICES MEMORY

1) Quick press the POWER ② button 2X, all BLUE LED's will start to flash
2) Press and hold the PLAY/PAUSE ^⑤ button for 10 seconds, a confirmation tone from the speakers will be heard, the LED's will stop flashing, now only the BT LED will flash
3) PAIR a new device as described on PG 8

STREAMING MUSIC
ENGLISH

1) Press the ⑤ PLAY/PAUSE once to start playing music or press the PLAY button from your device touch screen, press again to PAUSE
2) To skip songs or advance, press the NEXT TRACK ④ button, press and hold to FAST FORWARD
3) To select the previous song, press the PREVIOUS TRACK ⑦ button, press and hold to FAST REWIND

VOLUME CONTROL

1) To raise the VOLUME press UP ③ button
2) To lower the VOLUME press DOWN ⑥ button

Tips: Turn the BLUETOOTH volume level on your device to its 100% level

AUX-INPUT

AUX-IN OPERATION

MC900B can play audio from any device that has a 3.5mm headphone audio jack.

1) Power on the MC900B by pressing and holding down the POWER 2 button for 2 seconds
2) Short press the POWER ② button again once, the controller LED lighting will change to RED, indicating the system is in AUX-IN mode
3) Bluetooth devices will remain paired even in AUX-IN MODE

4) Connect the integrated RCA AUX-IN cable on the amplifier to a 3.5mm adaptor (3.5mm to RCA adaptor is not included)

5) Route the audio wires back to a convenient stowage place, secure your device.

VOLUME CONTROL

1) To raise the VOLUME press UP ③ button
2) To lower the VOLUME press DOWN ⑥ button
3) To MUTE / UN-MUTE the VOLUME press PLAY/PAUSE ⑤ button

Tips: Turn the HEADPHONE volume level on your device to it's 100% level

ENGLISH

INFORMATION TO THE USER

FCC COMPLIANCE STATEMENT

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired operation of this device.

This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter. The Bluetooth antenna cannot be removed (or replaced) by user. This equipment complies with FCC/ IC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency (RF) Exposure Guidelines and RSS-102 of the IC radio frequency (RF) Exposure rules. This equipment has very low levels of RF energy that it deemed to comply without maximum permissive exposure evaluation (MPE). But it is desirable that it should be installed and operated keeping the radiator at least 20 cm or more away from person's body (excluding extremities: hands, wrists, feet and ankles). Alteration or modifications carried out without appropriate authorization may invalidate the user's right to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

□ Relocate or reorient the receiving antenna.
□ Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
□ Consult the dealer or an experienced radio/TV technician for help.

CAUTION!!

ADJUSTMENT OR ALTERATIONS OF THIS DEVICE MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

AUDIO SYSTEMS

TROUBLE SHOOTING GUIDE

TROUBLE CAUSE SOLUTION
Unit will not turn on	The fuse is blown Check / replace the fuse
	Ignition not engaged Turn ignition to on position
No sound is heard	Blown speaker Replace faulty speaker
	Volume is low / muted Press the volume level up
	Device is paused or muted	Check your devices playing / volume status
Cannot pair Bluetooth	The Bluetooth function of the device is not enabled	Refer to the user manual of the device for how to enable the Bluetooth function
	The MC900B memory is full	Follow how to clear the memory on PG 8
The audio quality is poor after connection with a Bluetooth enabled device The Bluetooth reception is poor		Move the device closer to the audio system or remove any obstacle between the device and the systems antenna
Unit has become unresponsive Power glitch or interference		Disconnect power for 10 seconds to reset

SPECIFICATIONS

BLUETOOTH

• BT: 4.0
• BT Range: 33Ft / 10M (Class 2)
• BT Profiles: A2DP

AMPLIFIER

• Channels: 4
  • MAX Continuous Output: 500W
  (All channels driven)
  • PEAK Power Rating
• 4Ω: 125W /channel
  • RMS Total Power Output: 150W
  • Class: AB
  • Frequency response: 20-25kHz
• 4Ω stable
  • Input impedance: 22k Ohm

CHASSIS

• Chassis Dimensions HxDxW
1.75"x 7.8" x 3.8" / 44.5mm x 198mm x 96.5mm
- Controller Dimensions HxDxW:
0.81"x3.75"x1.85"/20.5mm×95.2mm×47mm
• Controller cable length: 20ft / 6m
• Backlight illumination control wire
- Quick connect Molex power harness

GENERAL

• Power source: 14.4VDC (10.8V \~ 16V allowable)
• Grounding System: Negative type
• Maximum Current Consumption: 15A
• 3-way protection circuitry (thermal, overload, and
speaker short protection)
• USB output voltage: 5VDC @ 1A
• Unit Weight: 2.08lbs / 0.94kg
• Storage Temperature: 5°F to 113°F / -15°C to 45°C
• Operation Temperature: 14°F to 104°F / -10°C to 40°C
• Replacement Fuse: 15A

(Replace with ATO Fuse Type Only)

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

AUDIO SYSTEMS