4
GTA 480
Red LED:
Output stage is electronically switched off due to an
error.
Recycling and disposal
Please use the return and collection systems
available to dispose of the product.
Subject to changes.
中文
保修
我們為在歐盟內購買的產品提供製造商保修。您可以訪問
www.blaupunkt.de
查看保修條款，或從以下地址直接索
取：
Blaupunkt GmbH
Hotline
Robert-Bosch-Str. 200
D-31139 Hildesheim, Germany
建議
:
放大器的性能直接受到其安裝的影響。正確的安裝可提高您
的汽車音響系統的整體性能。
GTA
放大器應該由接受過培訓
的人員進行安裝。如果希望自己安裝，請仔細閱讀這些安裝
說明，並要用充足的時間進行安裝。
最後，我們要談談健康
保護的話題
：
在裝置中播放音樂期間，請注意聲壓級持續高於
100
分貝可
能對人耳造成永久損失甚至失聰。使用今天的高性能系統和
揚聲器配置，可將聲壓級達到
130
分貝以上。
安全說明
請在安裝和連接期間遵循以下安全說明。
-
將電池的負極斷開！
遵守裝置製造商的安全說明。
-
鑽孔時，請確保不要損壞任何裝置元件。
- 正負極連接線的交接部分面積不能小於
6
平方毫米
(5 A.W.G.)
。
- 對於具有尖銳邊緣的線孔要使用電纜襯墊。
- 安裝不正確可能導致電子車輛系統或汽車音響系統工作
不正常。
安裝與連接說明
為了防止出現意外的安全問題，必須以專業方式對
GTA 480
進行安全保護。
選擇安裝位置時，請選擇通風條件良好的乾燥位置，以冷
卻放大器。
is connected with the positive connection (+) of the
loudspeaker; the same applies to the negative (-) con-
nections. In addition, the left amplifi er channel must
be connected with the left loudspeaker and the right
amplifi er channel with the right loudspeaker.
Bridged loudspeaker connections
The GTA amplifi er can also be bridged for a mono
confi guration. This allows the amplifi er to be used for
one or several subwoofers or mid-range drivers. In this
confi guration, the amplifi er combines the right and left
channel to a single-channel output (mono output).
Note:
The amplifi er can add the right and left signal informa-
tion only if the right as well as the left RCA connection
were carried out.
Caution:
In a bridge circuit, the amplifi er load must be 4 ohm
or higher. A lower load leads to an overheating or
switch-off of the amplifi er and can cause permanent
damages.
Adjusting the type and range of the frequency
crossovers
With the GTA 480, the type of frequency crossover (i.e.
"Low Pass" or "Hi-Pass") and the desired entry frequency
can be adjusted. For example, if a pair of subwoofers is to
be connected, the low-pass settings shown are required
(Fig. 3). The entry frequency is dependent upon the
frequency range of the loudspeakers (see recommended
frequency range of the loudspeakers).
High-Pass
At a setting of 250 Hz, the amplifi er has a frequency
range of 250 Hz to 35.000 Hz.
Low-pass frequency control
This control is active if the switch is in the position
"Low-Pass", and allows for setting the desired entry
frequency.
Example:
At a setting of 150 Hz, the amplifi er has a frequency
range of 10 Hz to 150 Hz.
Bass boost
The bass boost control is used to adjust the bass re-
sponse of the amplifi er.
The adjustment range is from 0 dB to +12 dB.
Power-on indicator
(POWER / PROTECTION)
Green LED:
Output stage on, regular operating status.
GTA_480_Asien_3.indd 4
GTA_480_Asien_3.indd 4
4/6/07 12:00:01 PM
4/6/07 12:00:01 PM
