VHT Special 6 Ultra Head - Manual (Page 5)

CONTROL PANEL FEATURES CONTINUED
5. Depth Control: This 11-position rotary switch selects the output tube’s low-frequency roll-off point. Set fully clockwise for the deepest low-
frequency extension. Lower settings (counterclockwise) expose more midrange texture and detail; the lowest settings emphasize more pres-
ence and bite.
6. Texture Switch: This 3-position rocker switch selects the output’s high-frequency roll-off point. The middle position provides maximum
top-end extension and the most harmonically complex texture; the left position provides subtle high-frequency roll-off for a slightly smoother
texture; the right position rolls-off more high frequencies for the smoothest texture.
7. Tone Control: This control adjusts the balance of the high and low frequencies.
8. Volume Control: Turning this knob clockwise increases the preamp drive and overall sound level. The Volume control is functional when
using either Clean or Ultra inputs.
9. Pull Boost: Pull this knob to partially bypass the internal tone shaping/voicing circuitry, which boosts the preamp gain and increases the
midrange emphasis. This feature can also be accessed by the footswitch.
NOTE: THE BOOST FOOTSWITCH WILL ONLY FUNCTION WHEN THE VOLUME KNOB IS IN THE PULLED POSITION.
10. Clean Input Jack: Use this input when cleaner lower-gain tones are desired. (When using the Clean input, turn the Ultra knob off to reduce
preamp noise.)
11. Ultra Control: This control adjusts the level of the extra gain (the Ultra control only functions when using the Ultra input).
12. Ultra Input Jack: This input engages the additional Ultra gain stage for maximum overdrive.
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REAR PANEL FEATURES
1. Footswitch Jack: Plug the Boost footswitch into this jack.
NOTE: THE BOOST FOOTSWITCH WILL ONLY FUNCTION WHEN THE VOLUME KNOB IS IN THE PULLED POSITION.
s2. Effects Loop Send and Return Jacks: The post-preamp Effects Loop can accommodate a wide range of effects. The send level is depen-
dent on the preamp gain. High preamp gain levels may overdrive some sensitive guitar-level effects pedals.
3. Line Out Jack: The preamp Line Out is in parallel with the Effects Loop Send and Return jacks, it can be used to send a tube-buffered
low-impedance (unbalanced) signal to other equipment such as mixing consoles or other amplifiers. Multiple Special 6 Ultra amplifiers can be
linked by connecting the Line Out jack to the Effects Return of the second amplifier. Several Special 6 Ultras can be linked in this manner, with
the first amplifier’s preamp serving as the master preamp for all additional amplifiers.
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