By 1969, Marshall amps had become the rage, and Vox was feeling a little left out. In response, Vox introduced their new Beatle "Power Stak" amp. The US Vox V1262 Beatle Power Stak amplifier featured two 4x12 speaker enclosures coupled to a V1143 Beatle head. Playing off a "skyscraper" high rise theme, 1969 Vox literature introducing the Power Stak series indicated that "you have to pay extra for the ladder."
The Beatle Power Stak was nothing more than a repackaging of items previously introduced by Vox. It's introduction helped Thomas Organ to move away from the use of costly chrome tubular steel swivel trolleys for their speaker cabinets.
The 4x12 enclosure used for the Beatle "Power Stak" was an adaptation of the cab introduced a year earlier as a part of the Sovereign Bass amp. The non ported speaker cabinet was constructed of 3/4" particle board. It featured four 12" 8 ohm, 25 watt Vox special design gold frame speakers with ferrite (or ceramic) magnets manufactured by the Oxford Speaker Company of Chicago IL. See a photo of these speakers at lower left.
The 120 watt, 240 watt peak power V1143 Beatle head, introduced in 1967, supplied the power. See the V1143 Beatle head owner's manual by clicking here. The V1143 was a three channel amp. Channel one (or the "Normal" Channel) featured Volume, Treble and Bass controls, a Top Boost switch, Tremolo, and foot switchable Distortion. Channel two (or the "Brilliant" channel) featured Volume, Treble and Bass controls, MRB, and "Repeat Percussion". A selector switch allowed Reverb to be assigned to either channel one or two. The third (or "Bass" channel) featured a Volume and Tone-X control.
While impressive in stature, the over six foot tall V1262 Beatle Stak had an inherent design flaw. The 11.5" deep cabinets did not provide a stable platform for stacking. Unfortunately, a toppling Vox Power Stak provided additional drama to the performance of many using this amp. A simple tug of a guitar cord was enough to start the action. The 4x12 stack cabinets supplied by Marshall were deeper and provided the stability to keep their stacked amps from falling over.
The suggested retail price of the V1262 Beatle Stak was $1195 in 1969. Adjusted for inflation to today's dollars, the Beatle Power Stak would retail today for about $7400.