Jensen JPA285 - Amplifier User Manual

1. Disconnect the negative (-) battery terminal.
NOTE: Check your vehicle's owner's manual before disconnecting the battery.
Disconnecting the battery in some vehicles may require an anti-theft code when
reconnecting for stereo operation. Some vehicles may run rough after reconnecting
the battery and require service to have the on-board computer reset. Check with
your local dealer if you are uncertain.
2. Run suitable AWG wire to where the amplifier will be mounted (run 1 foot extra than
you think you will need). Use rubber grommets where wires will pass through the
firewall or other areas of the vehicle. Make certain a fuse holder is placed within 18
inches of the vehicle battery – this is mandatory. Do not place a fuse in the fuse
holder at the battery at this time.
3. Mount the amplifier on a flat surface. Since a flat surface in a modern vehicle is often
difficult to find, an alternative is to cut a piece of 1/2 inch wood slightly larger than
the amplifier mounting area (covered with automotive type carpeting). Mount the
piece of wood, and then mount the amplifier to the carpeted wooden mount.
4. Ground the amplifier using the same AWG wire size used for the power cable. Make
sure the ground location is a clean, unpainted metal surface.
5. Run the RCA and Remote turn-on lead to the amplifier from the head unit.
6. Run speaker wires (16 AWG or larger) from your speakers to the amplifier.
7. Place a suitable size fuse in the fuse holder at the battery.
8. Ensure that the input level control is set to "MIN".
9. Turn on the head unit and make appropriate amplifier adjustments.
JPA260/JPA285 2-Channel Amp Quick Start Guide
Need help?
For technical assistance, call
the Jensen customer
support line at 1-800-323-4815.
L
R
Fuse Block or Fuse Holder
Minimum Wire Size:
+12V - 8 AWG
Ground - 8 AWG
CHASSIS GROUND
(
+
)
BATTERY
-
( )
Remote /
Power Antenna
Turn-on Wire
RCA Cable
CAR STEREO /
SOURCE UNIT
SPEAKERS
( )
( )
(
+
)
(
+
)
AMP
BRIDGED
L
R
+ -
-
+
GND
+12V
REM
JPA250
2 / 1 CHANNEL
AMPLIFIER
300 WATTS
PEAK POWER
MOSFET POWER SUPPLY

Jensen JPA285 - Amplifier Specifications

General

Channels	2
Bass Boost	0 - 12 dB
Input Sensitivity	200 mV - 4 V
Low Pass Crossover	Yes
High Pass Crossover	Yes
Bass Boost Frequency	45 Hz
Signal to Noise Ratio	90 dB
Frequency Response	20 Hz to 20 kHz
RMS Power @ 4 Ohms	85W x 2

Summary

JPA260/JPA285 2-Channel Amplifier Quick Start Guide

Disconnect Battery Terminal

Disconnect the negative battery terminal, noting potential anti-theft codes or computer resets.

Wire Routing and Fuse Placement

Route AWG wire, use grommets, and place fuse holder within 18 inches of the battery.

Mount Amplifier Securely

Mount amplifier on a flat surface, possibly using a wooden mount for carpeting.

Ensure Proper Grounding

Ensure a clean, unpainted metal surface for amplifier grounding.

Connect Audio and Remote Signals

Connect RCA and Remote turn-on leads from the head unit to the amplifier.

Connect Speaker Outputs

Connect speaker wires (16 AWG or larger) from speakers to the amplifier.

Install Fuse at Battery

Place a suitable size fuse in the fuse holder at the battery.

Set Input Level Control

Ensure the input level control is set to "MIN" before initial power-up.

Power On and Adjust

Turn on the head unit and make appropriate amplifier adjustments.