What does this diagram show?

It shows an amplifier (labeled AMP with R, L, +, and - markings) wired to a subwoofer (SUB), which is then connected to a second subwoofer (sub).

How are the two subwoofers connected to the amplifier in this diagram?

A single wire runs from the amplifier to the first subwoofer, and the second subwoofer is connected off the first subwoofer (daisy-chained), rather than each sub being wired directly to the amp.

Does the diagram specify wire gauge, impedance, or polarity for the sub-to-sub connection?

No. The only markings shown are AMP, R, L, + and - at the amplifier, and the labels SUB and sub on the two speakers. No gauge, impedance, or detailed polarity for the speaker link is shown.

Is this diagram specific to a particular vehicle?

No vehicle, year, make, or model information appears in the drawing itself; it is a generic amp-to-subwoofer wiring sketch.

Home/ Registry/ Ford/ Bronco/ 1987-1991/ 1991 Ford Bronco/ Photo supermotors.net/registry/media/408212

Amp to Dual Subwoofer Wiring Sketch - Daisy-Chained Subs Diagram

Simple wiring diagram of an amplifier connected to two subwoofers

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Wiring diagram showing an amp with R and L terminals connected to a large and small subwoofer.

AI caption July 2006 · Photo 68 of 942

This is a simple, hand-drawn (MS Paint-style) diagram illustrating how to wire two subwoofers to a single amplifier. The diagram shows a rectangle labeled "AMP" with right and left channel markings ("R L") and polarity markings ("+ -") on its output. A single wire runs from the amplifier output down to the first speaker, drawn as a circle labeled "SUB." A short connecting line joins the first subwoofer to a second circle labeled "sub," indicating the two subwoofers are chained together (the second sub connected off the first) rather than each being wired separately back to the amplifier. The document contains no fuse information, wire colors, gauge specifications, impedance values, part numbers, or vehicle-specific details. It appears to be a conceptual sketch shared by a community member — likely to ask or explain how to connect dual subwoofers to one amp channel — filed in the gallery of a 1991 Ford Bronco. A reader can learn the basic topology being proposed: amplifier output to one subwoofer, then daisy-chained to the second subwoofer.

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Frequently asked questions

What does this diagram show?: It shows an amplifier (labeled AMP with R, L, +, and - markings) wired to a subwoofer (SUB), which is then connected to a second subwoofer (sub).
How are the two subwoofers connected to the amplifier in this diagram?: A single wire runs from the amplifier to the first subwoofer, and the second subwoofer is connected off the first subwoofer (daisy-chained), rather than each sub being wired directly to the amp.
Does the diagram specify wire gauge, impedance, or polarity for the sub-to-sub connection?: No. The only markings shown are AMP, R, L, + and - at the amplifier, and the labels SUB and sub on the two speakers. No gauge, impedance, or detailed polarity for the speaker link is shown.
Is this diagram specific to a particular vehicle?: No vehicle, year, make, or model information appears in the drawing itself; it is a generic amp-to-subwoofer wiring sketch.