The VOX Showroom

The largest of the "4" series bass amplifiers, the UL4120 was produced in very small numbers as was the UL7120.

Lacking the reverb and vibrato effects of the UL7120 and with the a small change in the mixing resistor and the input capacitor in the pre-amp section, the UL4120 and the UL7120 are identical as is the rear control panel features. The "4" series mixing resistor being a 470k resistor and the input capacitor being 2.5mfd in value. The "7" series mixing resistor being 220k and the input capacitor being 2.2.mfd.

Features
Output Power	120 watts
Tube Compliment	Two ECL86's, one EL84 and a quartet of KT88's.
Channel One	Two inputs, Top boost switch, Volume, Treble, Middle, Bass.
Channel Two	Two inputs, Top boost switch, Volume, Treble, Middle, Bass.
Speaker(s)	4x12" G12H 25w Alnico Celestions + 2 Midax HF 17w Horns
Size (Head)	24" W x 10" H x11.25" D
Size (Speaker Cabinet)	27" H x 40" W x12" D
Accessories	Covers, foot pedal and chrome trolley.

Photos and editorial content courtesy Gary Hahlbeck, North Coast Music

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