Pioneer GM-3500T: Setting the unit What’s what Setting gain properly

Section

02

Setting the unit

What’s what

Setting gain properly

Front side

! Protective function included to prevent

malfunction of the unit and/or speakers

due to excessive output, improper use or

improper connection.

! When outputting high volume sound etc.,

this function cuts off the output for a few

Rear side

seconds as a normal function, but output

is restored when the volume of the head

unit is turned down.

! A cut in sound output may indicate impro-

per setting of the gain control. To ensure

continuous sound output with the head

To adjust the switch, use a flathead screwdri-

unit at a high volume, set amplifier gain

ver if needed.

control to a level appropriate for the preout

maximum output level of the head unit, so

1 LPF (low-pass filter) switch

that volume can remain unchanged and to

Switch the settings based on the connected

control excess output.

speaker.

! Despite correct volume and gain settings,

! When the Subwoofer is connected:

the unit sound still cuts out periodically. In

Select ON. This eliminates high range

such cases, please contact the nearest

frequency and outputs low range fre-

authorized Pioneer Service Station.

quency.

! When the full range speaker is con-

Gain control of this unit

nected:

Select OFF. OFF outputs the entire fre-

quency range.

Preout level: 2 V

2 GAIN (gain) control

(Standard: 500 mV)

If output remains low, even when the car

stereo volume is turned up, turn controls to

Above illustration shows NORMAL gain set-

lower level. If distortion occurs when the car

ting.

stereo volume is turned up, turn these con-

trols to higher level.

Relationship between amplifier gain

! For use with an RCA equipped car stereo

and head unit output power

(standard output of 500 mV), set to the

NORMAL position. For use with an RCA

equipped Pioneer car stereo, with max.

output of 4 V or more, adjust level to

match that of the car stereo output.

! If you hear too much noise when using

the speaker input terminals, turn the

gain control to higher level.

3 Power indicator

If amplifier gain is raised improperly, this will

The power indicator lights up to indicate

simply increase distortion, with little increase

power ON.

in power.

4

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