Building on the success of the popular VHT Special 6 and Special 6 Ultra, the VHT Special 12/20 features increased power (with two power ranges), a unique preamp specifically designed to excel with pe... Read More
Building on the success of the popular VHT Special 6 and Special 6 Ultra, the VHT Special 12/20 features increased power (with two power ranges), a unique preamp specifically designed to excel with pedals and multi-effects units, a convenient built-in 9-volt DC pedal power supply, an all-tube buffered effects loop with send and return level controls, VHT's unique Depth and Texture controls, and variable Watts control.
To optimize the amp for a wide range of output tubes, the VHT Special 12/20 offers two output-power ranges; safely located behind the rear panel, a special voltage range switch provides the proper voltages for 6V6 or EL84 output tubes (in 12-watt low-voltage/low-power mode). The high voltage 20-watt setting provides the ideal voltages for higher-power 6L6 or EL34 output tubes. The Special 12/20 ships from the factory with a pair of 6V6 output tubes (VHT 6V6-to-EL84 socket adapters are required for operation with EL84 tubes). In addition, the Special 12/20's variable Watts control can reduce the maximum output power to less than one watt for whisper-quiet volume levels.
The Special 12/20 preamp was designed to bring the most out of every effects pedal and multi-effects unit with enhanced clarity, detail, and controlled tube compression. Its low-impedance buffered effects loop send - with variable send level - can effortlessly drive the most difficult pedals without tone or signal loss. Thanks to its variable send and return level controls, the 12/20's effects loop can accommodate a wide range of pedal or rack effects. Those seeking the shortest signal path to the output stage can plug their pedals or multi-effects units directly into to effects return jack - the 12/20's unique output stage Depth and Texture controls are post-effects loop, so the output stage characteristics can always be fine-tuned to accommodate a wide range of instruments, speakers, playing styles and environments.
As an added convenience for pedal users, the VHT Special 12/20 also features a built-in, regulated 9-volt DC pedal power supply.
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Reviewed by 1 customer
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While not perfect, it won't take much to make it great! I have been using this amp head for about 3 weeks now, 2 of those nights I was able to use it in a studio setting. I am using an existing 1 X12 close back cabinet vise the VHT chrome backs speakers. A 2 X 12 cabinet will eventually be set up for this head. As I have with several less expensive amps, I immediately ordered new tubes expecting less than quality tubes would be installed, it arrived as expected. I will also try 6L6 vise the 6V6 tubes to get a bit more clean head room. Nice feature with the selectable power settings for the tubes. The Chinese tubes were very lifeless and noisy! Even with the Chinese tubes, this amp sounds good, great after the good tubes were installed. The dynamics are clear and clean with my PRS CU24 and boutique pedals. I have been pleasantly surprised with the single tone selector, found it simple and effective. I run a clean amp and allow the pedals to go dirty so I am going directly to the input vise FX loop so I leave the gain knobs for the FX Loop at max setting, but have found them also handy for an additional volume control over the amp. There is a difference in tone with limiting the send/return gain levels. Not hearing a lot of differences in the texture switch but there are nice subtle changes with the depth knob. The gain boost option is more aggressive than I expected, I hoped it would have been more of a clean boost. I hope that can be adjusted with some later mods. The adjustable wattage selectors is a nice feature but have found it not that useful at this time. Being a hand wired amp (no circuit board), I am anxious to try modification and upgrades over the next couple of months. Looking at the solder joints, they don?t look the best I have seen, but so far no problems.