Abstract: A terminal block assembly that enables multiple speakers, or woofers, to be connected in a series or parallel. In a first embodiment, the terminal block assembly has four receiving ports, two ports being formed in a first metal holder and two ports being formed in a second metal holder. The output leads from a first speaker are coupled to the two of the receiving ports; the output leads from a second speaker are coupled to the other two receiving ports. The output leads are mounted securely in the receiving ports using fastening screws. The outputs from a power amplifier are coupled to the input terminals on the terminal block. In a second embodiment, the terminal block assembly comprises two receiving ports, both port being formed in a metal holder.

Abstract: A terminal block assembly that enables multiple speakers, or woofers, to be connected in a series or parallel. In a first embodiment, the terminal block assembly has four receiving ports, two ports being formed in a first metal holder and two ports being formed in a second metal holder. The output leads from a first speaker are coupled to the two of the receiving ports; the output leads from a second speaker are coupled to the other two receiving ports. The output leads are mounted securely in the receiving ports using fastening screws. The outputs from a power amplifier are coupled to the input terminals on the terminal block. In a second embodiment, the terminal block assembly comprises two receiving ports, both port being formed in a metal holder.

Abstract: An improved vehicle speaker, or woofer, that is more durable and of a higher quality than those currently available. The speaker includes a cast or machined aluminum basket that increases the strength and rigidity along with efficient cooling required to support a high-power/high-output speaker. An aluminum ring is provided for clamping the speaker assembly in place to the speaker basket. The speaker wires are connected to the speaker using a lug-lock system and has a Faraday cage to reduce interference that otherwise would harm sensitive electronic components. In a second embodiment, a speaker is designed to utilize multiple individual magnetic coils that are stacked in a series/parallel configuration to increase gauss efficiency and voice coil cooling. In a third speaker embodiment, a multi-piece aluminum basket is provided which supports the speaker's reactive and static weight while maintaining the voice coil assembly aligned inside a precision ground gap.