User's Manual

第 1 页
Kohler Amplifier 1 User Guide
1. The Kohler Amplifier 1 is a 2 x 15 watts audio amplifier system.
2. It is powered by a 12~24V DC power adapter.
3. There is only a 5mm LED lamp at the front end cap.
4. The rear end cap has three terminals. They are the 3.5mm stereo jack, speaker
connector and 5.5/2.1 DC power jack from left to right.
5. When powered up, the amp is in standby mode and the led turns in yellow.
6. There are two ways to make the amp turn into operation mode:
a) Plug in audio signal via 3.5mm jack, the amp will monitor the signal level. Once
reaches the threshold, it will turn into operation mode and the led will turn in green.
b) Pair and connect the on board Bluetooth module with a mobile device, it will turn into
operation mode and the led will turn in blue.
7. After turned into operation mode, the amplifier chip will amplify the signal from either
3.5mm jack or the BT module and send it to the speakers via speaker connector on the
rear end cap.
8. If both 3.5mm jack and BT device connected, the signal from BT module will override the
one from 3.5mm jack.
9. Once neither of the 3.5mm jack and BT device connected, the amp will turn back into
standby mode again and the led will turn back in yellow.