VTL Tetrode-Triode Switching Capability
The VTL range of power amplifiers offer a unique feature that makes them even more flexible: On-the-spot switching between tetrode and triode modes of operation that is easy to reach and user switchable.
At lower volume levels, and with efficient speakers, the sound of the triode mode offers a level of delicacy, liquidity, and sweetness to vocals, chamber and jazz instrumental quartets and solo instruments with 3-D imaging in the mid-range that will get you even closer to the real event.
Tetrode mode offers the detail, soundstage width and depth, and weight to the music that on large-scale orchestral or big band will transport you to the concert hall with all the visceral power and detail rendition of your favorite music.
In the current VTL Signature and Reference amplifiers, tetrode triode mode switching is a simple function accomplished by a single press of the “Mode” button on the front panel. Users no longer need to power down the amplifier before the switch over. In the Performance series amplifiers and older VTL models, a changeover switch is provided on the back of the amplifier – just power down the amplifier, flip the switch to the desired mode, and power the amplifier up again.