The VOX Showroom - The Vox AC-50 Mk III Big Box Amp Head
The AC 50 Mk III and Mk IV amp heads would typically have black Vox grill and use the later, "three field" Vox Amplifier serial plate, as shown at right. This serial plate was installed on JMI amps produced from 1965 to 1967. It is a fairly safe bet that ...