To change the impedance of your cabinet will depend on the impedance of the individual speaker, if your 4 x 12 is fitted with four 16 ohms speakers it can be wired for 16 ohms mono, 4 ohms mono or 8 ohms stereo.
If the 4 x 12 cabinet is fitted with 8 ohms speakers this can be wired for 8 ohms mono, 2 ohms mono, 16 ohms stereo or 4 ohms stereo. If you have a 2 x 12 cabinet fitted with 16 ohms speakers this can be wired for 8 ohms mono, 16 ohms stereo or if you have a 2 x 12 fitted with 8 ohms speakers this could be wired for 4 or 16 ohms mono or 8 ohms stereo.
*All work of this nature must be carried out by a qualified engineer... MySpace Profile Editor
