JOYO JBA-10 10W Practice Bass Guitar Amplifier with Bluetooth User Manual

JOYO JBA-10 10W Practice Bass Guitar Amplifier with Bluetooth

INTRODUCTION

We know that you don’t like reading user manuals, but you’ve just purchased one of the finest bass amplifiers around, we want to tell you about it! So before you plug in and start popping and slapping, we’d like to suggest you take a few moments out to scan these pages.
The JBA 10 is powerful combo amplifiers. They include a matched 8-ohm bass speaker in a specially designed cabinet which can be used either flat on the floor or on its “kickback” position for increased high end clarity on directionality. It’s the perfect system for use in small venues such as club dates
and for home recording studios. Besides, the Bluetooth and auxiliary input, headphone output makes them awesome practice amps!

The JBA10 adopts Class D power amplifier of 10-watt and a customized 8-inch speaker, lightweight and energy-saving. When you purchased this JBA10, you’re assured of the great JOYO sound system.

In these pages, you’ll find a detailed description of the many features of your JBA10 combo bass amplifier, as well as a guided tour through its front and rear panels, step-by-step instructions for setting up and using the amp. Moreover, please try to check out our website www.joyoaudio.com for
complete information about out full product line.

SPECIAL NOTE: Should your JBA 10 Combo Bass Amplifier ever require servicing, please contact your local distributors!

IMPORTANT NOTES

• Please read all instructions before operating the unit.
•  Keep these instructions for future reference.
•  Please heed all safety warnings.
•  Follow manufacturer’s instructions.
•  Do not use this unit near water or moisture.
•  Clean only with a dry cloth.
•  Do not block any ventilation openings. Install in accordance with the manufacturer’s instruction.
•  Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
• Protect the power cord from being walked on and pinched particularly at plugs, convenience receptacle and at the point at which they exist from the unit.
•  Unplug this unit during lightning storms or when unused for long periods of time.
•  Refer to qualified personnel when the unit has been damaged in any way.

JBA10 COMBO BASS AMPLIFIER FEATURES

• The JBA10 offers all the newest concepts in state-of-the-art customized bass amplification in an extremely compact size and affordable price. Here are its main features:
• The 10-watt power to its specially designed 8-inch bass driver.
•  Specially designed cabinet can be used either flat on the floor or on its” kickback” position for increased high end clarity on directionality.
•  Flexible input that accommodates a broad range of input levels, so that you can use the JBA 10 with pretty much any kind of bass, from passive modes to those with active circuitry. It is almost impossible to overload the input of a JBA 10 bass amplifier!
• Three bands of high quality equalization, allowing you to create a broad range of tonal colors for your bass instrument.
•  The Bluetooth and auxiliary input, headphone output allowing you to hook up a portable CD or MP3 player, with Bluetooth input saves the trouble of connecting cables and makes practice more convenient.
•  A separate headphone output, which automatically disconnects the speaker output allowing use as a high quality practice amp.
• Included is a matched JOYO 8-ohm speaker mounted in a specially designed cabinet for clean and crisp sound.
•  Rugged construction makes the JBA 10 eminently road-worthy.

GUIDED TOUR – FRONT PANEL

1. Input-Connect your bass guitar to this standard 1/4″ unbalanced jack. The JBA10 is designed to handle low level signals if your bass has passive electronics (that is , if it has no battery), or the signals from hotter bass pickups if your bass has active electronics (that is, if it has a battery).

2.  Bass EQ control-This control provides approximately 12dB of cut or boost at 100Hz, with a peak (bell) curve. When the knob is at the triangle “0” position (at a sticking point ), there is no boost or attenuation. As it is turned clockwise to the +12 position, the frequency area is boosted; as it is turned counterclockwise from the -12 position, the frequency area is attenuated.

3. Mid EQ control- This control provides approximately 12dB of cut or boost at B00Hz, with a peak (bell) curve. When the knob is at the triangle “0” position (at a sticking point ), there is no boost or attenuation. As it is turned clockwise to the +12 position, the frequency area is boosted; as it is turned counterclockwise from the -12 position, the frequency area is attenuated.

4. Treble EQ control- This peaking control provides approximately 12dB of cut or boost at 10 KHz, with a peak (bell) curve. When the knob is at the triangle “0” position (at a sticking point), there is no boost or attenuation. As it is turned clockwise to the +12 position, the frequency area is boosted; as it is turned counterclockwise from the -12 position, the frequency area is attenuated.

5. Volume control- This is the overall volume control. For best signal-to-noise ratio, keep the output of your bass at or near maximum and adjust the Volume to the desired level.

6.  Bluetooth indicator- Press the option switch, the Bluetooth indicator will be flashing blue, when connects to Bluetooth device, the Bluetooth indicator will be blue.

7. Option switch- AUX IN and BLUETOOTH inputs are available by pressing the option switch.

8.  Auxiliary input- JBA10 amplifier features a AUX IN input which you can use with a portable CD player, cassette, mini disc or MP3 player. You can use the CD input to jam with pre-recorded track orto learn a riff from a favorite recording.

9. Phone jack- Connect any stereo headphone (32 ohms or less) to this 3.5mm stereo jack. When a plug is inserted into the headphone jack, the speaker output is disconnected, allowing you to use your JBA10 as a practice amplifier. The level of the signals sent to the headphones is determined by the setting of the Volume knob. Recover speaker output by pull out stereo headphone.

10. Power indicator- Turn on the power switch, the indicator is on.

11. Power switch- Turn on the power switch, the power indicator is on, operate normally after 5 seconds.
    GUIDED TOUR – REAR PANEL

12. Direct lnput-15V 4Adirect input, center positive, supply power for the entire unit.

SETTING UP AND USING YOUR JBA10 COMBO BASS AMPLIFIER

SETTING UP AND USING YOUR JBA10 COMBO BASS AMPLIFIER

1. Remove all packing materials (keep them in case of future maintenance), and decide where the amplifier is to be physically placed. You may decide to use the “kickback” position for additional directionality and high frequency clarity. To avoid potential overheating problems, make sure
   that the rear panel is unobstructed and that there is good ventilation around the entire unit.

2. Before plug in the power cable, make sure the power switch is turned off. Connect the adapter output to DC IN input located on the rear panel, Then, plug the matched plug into socket, and don’t turn on the J BA 10 just yet, though.

3. Use a standard music instrument cable to connect your bass to the Input jack on the front panel.
   The JBA Input has been designed to handle the signal from almost any bass guitar. So, whether your bass has passive electronics or active electronics, plug right in. On the front panel, turn position “O” counterclockwise of Bass, Mid and Treble to triangle position
   (at a sticking point).

4. Press the front panel power switch; the power indicator is on and the unit starts to work.

5.  Set the output of your Bass to maximum and then, while playing, slowly turn the Volume control up until the desired level is achieved. It’s almost impossible to overload the JBA10 amplifier, so if you hear distortion even at low Volume settings, check up a faulty cable.

6. Adjust the three equalization controls to taste. When you get a great setting that complements your instrument and playing style, it’s a good idea to write it down for future use .
   

7. Turn the Volume control to its minimum (fully counterclockwise) position and then connect a 3.5mm stereo headphone to the front-panel Phone jack. While playing your bass, slowly turn the Volume control up- you should hear sound from the headphones and none from the connected speaker. We recommend the use of large size headphones (those with large transducers) for optimum bass reproduction.

8. If you encounter difficulty with any aspect of setting up or using your JBA10 Bass Combo Amplifier, you can call JOYO ( 0755-29765393) from 9 AM to 5 PM, or contact your local distributors.

AUX IN AND BLUETOOTH FUNCTIONS:

Your JBA10 amplifier features AUX IN and Bluetooth inputs that you can use with a portable CD player, cassette, mini disk or MP3 player to jam with pre- recorded tracks or learn a riff from a favorite tune. In fact, you can plug any line level signal into the AUX IN including the signal from a keyboard or drum machine. Connect the CD player or other Line level device to the AUX IN using standard 3.5mm cable. You will want to use the volume control on the CD player or other Line level device to set the balance between the track and your bass. So, start with the volume control all the way down and slowly raise it until you reach a good balance with your bass.

USING EQUALIZATION :
The JBA10 Bass Amplifier gives you enormous control over shaping the sound of your bass, using a process called equalization. To understand how this works, it’s important to know that every naturally occurring sound consists of a broad range of pitches, or frequencies, combined together in a unique way. This blend is what gives every sound its distinctive tonal color. The JBA EQ controls allow you to alter a sound by boosting or attenuating specific frequency areas-they operate much like the bass and treble controls on your hi-fi amp, but with much greater precision.

• Three bands of equalization, each EQ knob labeled Bass, Mid and Treble, respectively affects a different frequency area 100 Hz, 800 Hz, 1 0kHz,
  respectively and provides approximately 12 db of boost and attenuation. We carefully selected these frequency areas because they have maximum impact on bass signals.

•  When an EQ knob is in its center triangle position “0” (at a sticking point), it is having no effect.
  When it is moved right of center, the particular frequency area is being boosted; when it is moved left of center, the frequency area is being attenuated.

• Under many circumstances, the best way to deal with equalization is to think in terms of which frequency areas you need to attenuate, as opposed to which ones you need to boost. Be aware that boosting a frequency area also has the effect of boosting the overall signal; specifically, too
  much Low EQ boost can actually cause overload distortion or even harm the connected speaker

SPECIFlCATIONS

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