FREE EBOOK - Equipping Your Home Recording Studio
uly 24, 2004
VOX introduces the VR30 Reverb and VR15 amplifiers. These 2-channel, 3-mode hybrid amps were designed for players seeking warm tube tone at an affordable price.
The 30 Watt VR30 Reverb and 15 Watt VR15 feature three selectable sounds (Clean, OD1, OD2) and custom VOX speakers (10" for VR30 Reverb; 8" for VR15). The VR30 also features spring reverb. Both amps utilize solid state technology in the preamp stage and VOX's proprietary Valve Reactor power amplifier technology (with built-in 12AX7/ECC83 tube), as found in the Valvetronix series.
VR30 Reverb and VR15:
About VR Technology
The VR series represent Vox's next generation of "hybrid" tube and solid state guitar amplifiers. The Preamp stage uses discrete transistors and integrated circuits (ICs) in the parts of the circuit where they are most effective. The discrete transistors are used for sound generation and the ICs for signal management.
The Power amp stage uses a 12AX7 vacuum tube in VOX's patented Valve Reactor circuit. This VOX technology was originally designed for the Valvetronix Modeling products, but has been further revised for use in the VR30 Reverb and VR15 amplifiers.
VR technology utilizes each half of the 12AX7 (the 12AX7 tube is actually two identical tubes in one glass tube a.k.a. dual triode) configured as a small tube power amplifier. This circuit provides the tonality and feel of an all-tube power amp. This "small" tube power amp is connected through a virtual output transformer to a larger, transparent current feedback solid-state power amplifier that is designed to not add coloration to the tube signal. The power output amplifier feeds the loudspeaker impedance information back into the tube part of the power amp in order to achieve the sound and feel of an all-tube amp.
For more information, visit their web site at www.voxamps.co.ukCome on the FREE COURSE TOUR
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