The name comes from Low Pass Filter, which we could also call a Low Cut Filter.
It only allows sounds below the selected frequency to pass through.
👉 Practical example:
If it’s set to 80 Hz, only bass sounds up to 80 Hz will reach the speaker.
This is ideal for subwoofers, which work best in the lower frequency range.
🔊 In Taramps amplifiers, the LPF can usually be adjusted within a very wide range (for example: from 90 Hz up to 10,000 Hz), which allows it to be used not only for bass but also for midrange speakers.
When you combine the LPF (which defines the upper limit of the frequencies) with an HPF (High Pass Filter, which defines the lower limit), the speaker operates in its ideal frequency range — allowing you to extract the best possible performance.
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