High level (also known as speaker level) refers to audio signals transmitted via standard speaker wire. Low level refers to audio signals transmitted via RCA or coaxial cables. High level inputs are commonly used when integrating an amplifier into a factory head unit, allowing the amplifier to receive signal directly from existing speaker outputs. Low level connections, typically used with aftermarket head units, provide a cleaner and higher-quality signal. Low level RCA connections are preferred for premium sound systems, as they offer superior signal integrity and reduced noise.
To ensure optimal system integration, we recommend enquiring with your local Focal Authorised Car Audio Australia Dealer.
