1 SHARE. There are basically two ways to set up a subwoofer crossover with your main right and left loudspeakers. Each of the two schemes has advantages and disadvantages. Which one will work best with your particular system depends on many factors, including your room, your power amplifier, your subwoofer and, lastly, your main speakers. 2 Extreme temperatures. While a house environment can be considered fairly consistent, my car could see almost -40C in the winter, and almost +40C in the summer, which is a huge variation compared to what a house speaker is used to seeing. Will this cause any issues with say brittle suspension under cold temperatures? 3. Moisture. Theseterms designate if the built-in passive crossover in the speaker is used or if an active crossover is used before the audio goes into the 2 amps. In other words, the type of crossover used determines the difference between passive and active bi-amping. Passive bi-amping involves using the speaker's internal crossover network. Subwooferin and out (LFE)- To make the active subwoofer wireless. Speaker level inputs (L/R speaker in)- For connection to the left and right speaker outputs on a receiver. Speaker level outputs (L/R speaker out)- Found on kits with built-in amplifiers for connection to a pair of passive speakers. Aux in (3.5 mm)- For connection to a 3 .

can any speaker be used as a subwoofer