Dating vox ac50
However, the rapid development of the Vox UL "hybrid" models during 1966 probably caused Vox to abort this plan.A common fallacy surrounding the "Big Box" amp cabinet is that it's larger size provided the chassis with better ventilation than the "Small Box" AC-50 cabinet. While the "Big Box" cabinet is indeed larger, the slider board provided a partition that made the chassis compartment of the "Big Box" cabinet the same size as the "Small Box" cabinet.It also had lower gain and higher headroom, making it the better channel for bass guitar.
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 low gain design kept the audio signal clean, minimizing the ability of the AC-50 Mk III to be overdriven.
The circuitry for the first, or "Normal" channel voiced for full range response.
The "Big Box" cabinet also allowed the chassis to be mounted to a "slider board" for ease in service.
To service the chassis, one only needed to remove six back screws, remove the rear panel and slide the chassis out of the cabinet like a drawer.