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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