For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.
This tuning version is a passive tuning board, the tuning board does not need power supply, which solves the problem of wanting to use it even when there is no electricity.
The principle of the tuning board is to filter the audio signal directly through the resistance capacitance component to obtain the desired high and low sounds.
The tuning board has the stability, powerful functions and reliability of a micro controller. You can be sure that the audio board works properly when connected to most audio sources.
The main function of the tuning board is to adjust the high and low sounds of the input audio signal, and then send it to the power amplifier board for amplification.
The tuning board is easy to install, and the installation of the sound board is simple, without particularly complicated operations.
