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JENSEN 

JASERIES 

Preparation 

Please read entire manual before installation. Due to the technical nature 

of amplifiers, it is highly recommended that your amplifier is installed by a 

professional installer or an authorized dealer. 

Before You Start 

• Disconnect negative battery terminal. (consult a qualified technician for

instructions)

• Avoid installing the amplifier where it would be subject to high temperatures, such

as from direct sunlight. or where it would be subject to dust. dirt or excessive

vibration.

• Use extreme caution when drilling holes to avoid damaging fuel lines or existing

vehicle wiring.

• All amplifier installations require power, signal and speaker wires (not included).

• An amplifier installation kit (sold separately) is highly recommended to facilitate

the installation. Consult your dealer for recommendations.

Mounting Location 

• Choose a mounting location for the amplifier. Suggested locations include under a

seat or in the trunk.

• The amplifier can be mounted horizontal (recommended) or vertical.  For optimum

performance, make sure to provide at least 1" of space around all sides. Do not

mount the amplifier under carpets or where airflow is restricted.

• Do not install the amplifier where it may be exposed to moisture.

• The optimum mounting location varies between vehicles. Remember to test all

amplifier functions before completing the final mounting procedure.

G) 

TYPICAL 

MOUNTING 

METHOD 

Summary of Contents for JA Series

Page 1: ...h SIG Inc Other trademarks and trade names are those of their respective owners Customer Support IRIII 1 888 921 4088 Monday Friday 9AM 5PM EST __ Visit https www jensenmobile com _ Designed and Engin...

Page 2: ...g All amplifier installations require power signal and speaker wires not included An amplifier installation kit sold separately is highly recommended to facilitate the installation Consult your dealer...

Page 3: ...ean unpainted section of metal or the vehicle chassis when attaching the ground connection Be sure to clean the area of any dirt or grease Remote Turn on Wire REM The remote turn on wire connects to t...

Page 4: ...lllli111 IIIH1 1ll111 JA2B 4 JENSEN JA2B i1lll 11 1l111 11l1 1 JA4B CLASS D 4CH POWER AMPLIFIER CD Line Output Line Input High Level Input Reset Do not place anything in this area that could block the...

Page 5: ...nd 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 i...

Page 6: ...thorized repair or failure to follow instructions supplied with the product or damage occurring during return shipment of the product Specific license conditions and copyright notices for the software...

Page 7: ...ng chassis ground Check for pinched wire Speaker s defective or damaged Check replace speaker s Bad ground connection Make sure amplifier is grounded to clean bare metal Signal ground loop or RFI radi...

Page 8: ...5 59 H x W x DJ JA2B Continuous Power Output Dynamic Power Maximum 95W RMS x 2 Channels at 40 105W RMS x 2 Channels at 20 225W RMS x 1 Channel at 40 BRIDGED 1 THD NJ 1DOW x 2 Channels at 1kHz at 40 11...

Page 9: ...tom EQ from EQ Presets is selected to make the customized audio settings and each gain per frequency can be adjusted at EQ Mode of the App RGB Color It allows the amp illumination to be turned off or...

Page 10: ...ot support audio streaming and hands free calls via Bluetooth 9 JENSEN JASERIES Bluetooth Pairing with App and AMP Step 1 Touch the BT iconCD Step 2 Touch the Scan icon to search the Bluetooth amp Ste...

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