Pioneer PRS-D1200M owner manual Setting the Gain properly, Gain Control of This Unit

Setting the Unit

Setting the Gain properly

• This unit is equipped with a protective function to

prevent malfunction of the unit itself and speakers

from too much output, improper use or improper

Relationship between the gain of the amplifier and the output power of the head unit

connection.

• When outputting sound at high volume etc., this

function will cut off the sound output in a few

seconds. But this is not a malfunction. When you

turn down the volume of the head unit the sound

output will be restored.

• If sound output is cut, the gain control of this unit

may be improperly set. To ensure continuous

sound output at increased volume of the head unit,

set the gain control of the amplifier to a proper

Power

Normal gain

Head unit volume steps

Amplifier gain

(normal)

Power

Maximum gain

Equal power

Head unit volume steps

Amplifier gain

(maximum)

position according to the preout maximum output

level of the head unit. There is no need to

decrease the volume of the head unit and too

much output is controlled.

• If you decrease the volume of the head unit and

set the gain control of the amplifier to the proper

position but still the sound cuts out from time to

time, contact the nearest authorized PIONEER

Service Station.

Gain Control of This Unit

Preout level: 4 V
Preout level: 6.5 V	Preout level: 2 V
	(Standard: 500 mV)

•The above illustration shows the gain set to

NORMAL.

•If you raise the gain of the amplifier to an improp- er level, only distortion is increased and the power increases only slightly.

Signal waveform when outputting at high volume by the gain control of the amplifier

No rmal gai n			Maximum gai n
		we	r
Signal	Equal po
			Signal
wavefo rm			wavefo rm
Amplifier gai n			Amplifier gai n
(normal)			(maximum)

•With high output the signal waveform is distorted, if you raise the gain of the amplifier the power changes only slightly.

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