1pcs Class AB L12-2 55V 120W Single Channel Audio Power Finished Amplifier Board Amp with Heatsink
1pcs Class AB L12-2 55V 120W Single Channel Audio Power Finished Amplifier Board Amp with Heatsink
1pcs Class AB L12-2 55V 120W Single Channel Audio Power Finished Amplifier Board Amp with Heatsink
1pcs Class AB L12-2 55V 120W Single Channel Audio Power Finished Amplifier Board Amp with Heatsink
1pcs Class AB L12-2 55V 120W Single Channel Audio Power Finished Amplifier Board Amp with Heatsink
1pcs Class AB L12-2 55V 120W Single Channel Audio Power Finished Amplifier Board Amp with Heatsink

1pcs Class AB L12-2 55V 120W Single Channel Audio Power Finished Amplifier Board Amp with Heatsink

Shipping Time: 27 days Shipping cost: US $0.00 US $0.00
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Estimated Delivery Date: Saturday, Apr 8

Due to high demand, please allow at least 2-4 weeks for delivery.

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Product Details
Item Specifics
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Product Details

1PCS Audio L12-2 Power Amplifier

L12-2 Amplifier After class . The rigorously tested high-performance amplifier designed by LJM himself.
L12-2 is mainly based on monitoring, ultra-low distortion amplifier.
The first thing to note is that the lowest distortion does not mean that it may be the best speaker to listen to.
The L12-2 is more suitable for professional users who have a very high level of accuracy and detail.
Its voice tends to be colder and harder. requires attention.
Supply voltage + -55V or less.
Power = 120W /8R + -50V voltage
200W 4R + -50V voltage
THD<0.0005% 1K HZ 10W
SR = 35V/US
Damping factor >200, 8 ohm load
Input Sensitivity = 1.6V Output 120W 8R
Frequency Response Range = 15HZ-50K HZ (-3DB)
20HZ* 20K HZ =-0.02 DB
Static current = 80MA
Voltage Range = DC Positive + Negative Voltage + -12V to + -55V
Voltage magnification = 31 times
L12-2 has exceeded thousands of users since 2006, and it all reflects very good. It is a classic model of the L series.
Stable and reliable, first-class performance. L-Series amplifiers are strictly measured using a variety of instruments, not on the Internet copy of a variety of brand cottage power amplifier board similar.
The L series has undergone years of research and improvement, as well as reliability testing. Please feel free to use it.
If the user believes that they are not satisfied after purchasing, for example, the sound is not as good as a DIY kit, they can be refunded unconditionally.
This is the only one in the entire network.
The spare parts need to be welded by themselves. After the installation is completed, as shown in the figure:
Test chart:
Input signal -THD+N test
When the input voltage is 700MV, the output voltage is approximately 8V ohms at 23VPP.
Test the following picture: Use an 8-Ohm 1000W power resistor.
THD+N approximately = 0.0009%.
Frequency response:
20HZ-20KHZ < -0.02DB

In the test if you use a larger capacity of filter capacitors and transformers. There will be less low-frequency distortion.
The test transformer is a dual 24V 200VA. It is 150 yuan in the shop.
The filter capacitor is four 63V5600UF.
Larger capacitors have less low-frequency distortion. This test is for reference only. The actual production is directly related to the transformer and filter capacitor. Will affect the size of the distortion.

Package Contents

1PCS Audio L12-2 Power 2 Channel Ultra-low Distortion Amplifier Classic AMP Finished baord with heatsink



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Item Specifics
Brand Name:
Mainland China
Maximum Power Per Channel:
Model Number:
KS L12-2 120W
Home Amplifier
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