Governing Law - This contract shall be governed and construed per the laws of the People's Republic of China. Buyer agrees that competent courts in the People's Republic of China shall have exclusive jurisdiction over any legal action concerning this contract. In the event of any dispute related to this contract, the prevailing party shall be entitled to reasonable attorney's fee and costs. FAQs How can I Request a Warranty replacement or repair? You can connect a pre-amp to the LA90 and bypass the volume control of the LA90. This is especially useful when you are synchronizing the volume of two LA90 power amplifiers in mono mode via a dedicated pre-amplifier. If you want to have a headphone amplifier too in the chain, you can connect it with A90, where A90 will act as a pre-amplifier for the LA90. Price & Availability:- If you also require a headphone amplifier, it is recommended to use LA90 Discrete with A90 Discrete. They not only provide the headphone amplifier, but also can be used as a pre-amplifier for the LA90 Discrete. It is worth mentioning that, the A90 Discrete also supports remote control and input expansion.

use not following the ‘User Guide’ or any additional safety, use, or warnings included in the product materials.

Damage due to user negligence, accidents, disassembly, waterlog, misuse, abuse, alterations or vandalism.

I am thinking about doing the same as you getting a pair LA90-Ds with an A90-D to upgrade my 2 channel bookshelf system. I might even start with 1 x LA90-D as I have a small desktop setup in a small room. The LA90D comes with a 12V trigger interface, allowing it to be easily integrated into a larger audio system. This feature was not available in the LA90. Size: No Difference HereCompatible with both the XLR and the TRS interfaces, the Topping LA90 has three different input ports. These inputs can be switched easily as required. Connect your power amp to three different sources at once and switch as you require. Ultra-Solid Amplification With Two-Level Gain:- Amir has measured the A90-D and its nearly the same performance as the original A90 so it should be great match for the LA90-D The THD+N is <0.0001%@4Ω/5W, <0.0001%@8 Ω/5W. This is already as low as an excellent DAC. It means a more accurate reproduction of the music source. The LA90 Discrete has a very wide working range with low distortion under load. Even in the commonly used 4 Ω load 1W-60W output and 8 Ω load 1W-40W output, the LA90 Discrete can control the distortion around 0.0001%. High current discrete output circuit gives higher bridging power. With 4 ohms bridged, up to 180W of power is enough to make the sound more complete and fuller. LA90 Discrete comes with three sets of balanced inputs, compatible with XLR and TRS interfaces, allows 2-step Gain setting. It can be configured in the common stereo two channel mode or in high-power mono made, with a minimum load of 42 when using the mono mode.