Much work needs to be done to revive the VOX name, and there are many manufacturing difficulties to overcome, but at the 1980 British Music Fair, the VOX V125 is launched. This is basically a modified AC120 in the form of a head that drives 2 x 12" speaker cabinets with open backs. Soon other models appear - a V125 Bass, a V15 valve combo, and the transistor Escort 50 Lead and Escort 50 Bass. Utilizing a modified V125 chassis, a combo known as the Climax is also made.
The Vox V125 Guitar and V125 Bass stack, both introduced by Vox in 1980, were two such examples.
The electronics for the V125 were an adaptation of the circuits used in the AC-120 that Vox had introduced in 1973. Although Vox literature showcasimg this amplifier states that it had "pure valve power," that is not totally correct. Two 2N3819 transistors were used as an initial gain stage in the V125.
After the transistors, six 7025 (ECC83), one ECC81 and a quartet of EL-34s made up the tube complement.
The reverb circuit from the AC120 was not included in the V125.
The V125 amp design included Gain, Volume and Master Volume controls, as would a Marshall amp from this same period.
A five band EQ with rotary controls was featured in the V125. The EQ frequencies of the V125 Lead were 100hz, 250 hz, 500 hz, 1500 hz and 2300 hz. The EQ frequencies of the V125 Bass were 50hz, 100 hz, 250 hz, 500 hz and 1600 hz.
The V125 speaker enclosures had a large exposed bass reflex port. The V125 Lead cabinet featured two 12" 80 watt Celestion speakers, rather than the four 30 watt 12" Celestions one would expect in a Marshall 1960 cabinet. The V125 Bass had a single 15" Celestion speaker.