Introducing the world’s first ultracapacitor-powered, “convertible,” directly-heated triode (DHT) linestage – the Vinnie Rossi LIO DHT PRE.
Have you ever wanted to hear what Class-A, directly heated triodes really sound like? LIO DHT PRE is the only linestage to reveal the full sonic glory of DHTs by taking out of the equation the noise and distortion-producing elements commonly found in DHT amplifiers such as driver tubes, output transformers, feedback loops, cathode resistors, bypass caps and other sources of coloration. The triodes are powered by LIO’s internal ultracapacitor power supply and patented “SPVR” super-regulated filament supplies to achieve what some consider the ‘holy grail’ of DHT linestage design – the lowest possible noise, hum, and microphonics using a purist circuit topology.
When the Vinnie Rossi DHT PRE is used with any LIO configuration, you will be rewarded with the most direct and emotional engaging connection to the finest sounding 4-pin DHT triode families ever made!
“I put a spell on you…”
More than any other tubes used in a linestage, the 4-pin DHT family of tubes compatible with LIO DHT PRE offers you:
The resolution, openness, and flow to your music with LIO DHT PRE is exquisite – but most of all, you will enjoy a heightened sense of realism and emotion album after album that will leave you under a spell!
Volume Control Features (included with all DHT PRE modules)
DHT Tubestage Features
|Gain:||Approx. 6 – 9 dB (depending on tube used)|
|Frequency Response:||From 10Hz to >250kHz (+/- 0.5dB), ultra-high bandwidth design|
|External linear DC power supply dimensions:||6.5″ wide x 9.0″ deep x 3.75″ tall|