Installation; Specifications - Pioneer GM-320T Owner's Manual

Bridgeable two-channel power amplifier

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Connecting the Unit

Using the Speaker Input

Connecting the Speaker Wires

Connect the car stereo speaker output

The speaker output mode can be two-chan-

wires to the amplifier using the supplied

nel (stereo) or one-channel (mono).

speaker input connector.

Connect the speaker leads to suit the mode

• Do not connect both the RCA input and the

according to the figures shown below.

speaker input at the same time.

• Do not connect both the RCA input and the

speaker input at the same time.

7 Connections when using the speaker

Two-channel mode (stereo)

input

Car Stereo

(Left)

Speaker output

Speaker

(Right)

One-channel mode (mono)

White/black:

Gray/black:

Left ≠

Right ≠

White:

Gray:

Left +

Right +

Speaker (Mono)

Speaker input connector

To speaker input terminal of

this unit.

Installation

• Do not install the amplifier on unstable places

CAUTION

such as the spare tire board.

• The best location for installation differs with the

• Do not install in:

car model and installation location. Secure the

—Places where it could injure the driver or pas-

amplifier at a sufficiently rigid location.

sengers if the vehicle stops suddenly.

• Make temporary connections first and check that

—Places where it may interfere with the driver,

the amplifier and the system operate properly.

such as on the floor in front of the driver's

• After installing the amplifier, confirm that the

seat.

spare tire, jack and tools can be easily removed.

• Make sure that wires are not caught in the sliding

mechanism of the seats, resulting in a short-cir-

Example of installation on the floor

cuit.

• Confirm that no parts are behind the panel when

mat or on the chassis

drilling a hole for installation of the amplifier.

Protect all cables and important equipment such

as fuel lines, brake lines and electrical wiring

1. Place the amplifier where it is to be

from damage.

installed. Insert the supplied tapping

• Install tapping screws in such a way that the

screws (4 × 18 mm) into the screw

screw tip does not touch any wire. This is impor-

tant to prevent wires from being cut by vibration

holes. Push on the screws with a

of the car, which can result in fire.

screwdriver so they make marks

• DO NOT allow amplifier to come into contact

where the installation holes are to be

with liquids due to, for example, the location

where the amplifier is installed. Electrical shock

located.

could result. Also, amplifier and speaker damage,

smoke, and overheating could result from contact

2. Drill 2.5 mm (1/8 inch) diameter

with liquids. In addition, the amplifier surface and

holes at the point marked, and

the surface of any attached speakers could become

hot to the touch and minor burns could result.

install the amplifier, either on the

• To ensure proper installation, use the supplied

carpet or directly to the chassis.

parts in the manner specified. If any parts other

Tapping-screws

than the supplied ones are used, they may damage

(4 × 18 mm)

internal parts of the amplifier, or they may

become loose causing the amplifier to shut down.

• Never replace the fuse with one of greater value

or rating than the original fuse. Use of an improp-

er fuse could result in overheating and smoke and

could cause damage to the product and injury

including burns.

CAUTION:

To prevent malfunction and/or injury

• To ensure proper heat dissipation of the amplifier,

be sure of the following during installation.

Drill a 2.5 mm (1/8 inch)

—Allow adequate space above the amplifier for

diameter hole

proper ventilation.

—Do not cover the amplifier with a floor mat or

carpet.

• DO NOT allow amplifier to come into contact

with liquids due to, for example, the location

where the amplifier is installed. Electrical shock

could result. Also, amplifier and speaker damage,

smoke, and overheating could result from contact

with liquids. In addition, the amplifier surface and

the surface of any attached speakers could become

hot to the touch and minor burns could result.

Specifications

Power source .............................................................................................................. 14.4 V DC (10.8 — 15.1 V allowable)

Grounding system ............................................................................................................................................ Negative type

Current consumption ...................................................................................................... 15.0 A (at continuous power, 4 Ω)

Average current drawn* .......................................................................................................... 4.0 A (4 Ω for two channels)

Fuse .......................................................................................................................................................................... 25 A × 1

Dimensions ........................................................................................................................ 300 (W) × 61 (H) × 195 (D) mm

Weight ........................................................................................................ 2.7 kg (6.0 lbs.) (Leads for wiring not included)

Maximum power output .............................................................................................. 120 W × 2 ( 4 Ω) / 300 W × 1 ( 4 Ω)

Continuous power output .......................................................... 60 W × 2 (at 14.4 V, 4 Ω, 20 Hz — 20 kHz 0.08% THD)

150 W × 1 (at 14.4 V, 4 Ω, 20 Hz — 20 kHz 0.8% THD)

75 W × 2 (at 14.4 V, 2 Ω, 20 Hz — 20 kHz 0.8% THD)

Load impedance ............................................................................................................................ 4 Ω (2 — 8 Ω allowable)

Frequency response .......................................................................................................... 10 Hz — 50 kHz (+0 dB, –1 dB)

Signal-to-noise ratio ...................................................................................................................... 100 dB (IHF-A network)

Distortion .......................................................................................................................................... 0.008 % (10 W, 1 kHz)

Separation ........................................................................................................................................................ 70 dB (1 kHz)

Low pass filter ................................................................................................................................ Cut off frequency: 80 Hz

Gain control ...................................................................................................................................... RCA: 400 mV — 6.5 V

Maximum input level / impedance ........................................................................................................ RCA: 6.5 V / 22 kΩ

Power output ........................................................................................ 60 W RMS × 2 channels

(4 Ω and

150 W RMS × 1 channel

(4 Ω and

75 W RMS × 2 channels

(2 Ω and

Signal-to-noise ratio ............................................................ 80 dBA (Reference: 1 W into 4 Ω)

Note:

• Specifications and the design are subject to possible modification without notice

due to improvements.

*Average current drawn

• The average current drawn is nearly the maximum current drawn by this unit