How are you going to fine-tune your sound? Buy some different cables?! What if you bought a speaker with bass that overloads the room? Or, that is too dark? Or, too bright? What if you just want to have fun trying the different colors of sound from a vast pallet of tubes? With other manufacturers' products, you're stuck. And, bass extension with so much slam, our amps are used to power subwoofers. Only PrimaLuna, through our proprietary output transformer designs, can give you E元4 midrange beauty with top-end air that goes on forever. Other amp manufacturers would love to use it.
BUT YOUR SYSTEM MAY NOT BEĪsk any seasoned tube-head what the most musical output tube is and they will most certainly declare it the E元4. Experienced audiophiles know that for the majority of listening sessions, you use maybe 10 watts of power. Do you think for a minute it will sound better than a 50 or 100 watts high end amp costing $10,000? Of course not. You can buy a 200 watt receiver for $299, and it will even have surround sound. Read this carefully: Power has nothing to do with sound quality. It requires bigger transformers, sockets, wiring, resistors, capacitors, and the tubes to do it. In fact, free. To get more power the right way is expensive. It’s a cheap way to get big power, and it’s cheap. That’s a lot of power, but the demands per tube are a fraction of some manufacturers that give you 100 watts from a pair of KT-120’s. So running a pair of them you get 42 watts. With KT-120’s as an example, a PrimaLuna will give you only 21 watts per tube. When you look at our amps, they provide less power from each tube. PrimaLuna runs their output tubes at a minimum dissipation without going into crossover distortion. But if they told you that they used 575, 600, or even 625 volts you probably wouldn’t buy. We proudly tell you our tubes run at just about 417 volts for the plates and screens. They’ll say it’s “proprietary” as if it’s some secret sauce. Manufacturers that run the hell out of tubes to pump up their power ratings will never tell you what voltages they use. If the plate and screen voltage is high, you are more likely to get tube shorts when you turn the amp on and you get cathode stripping which greatly effects the cathodes ability to spit out electrons. The life of a tube will depend on two things: Plate and screen voltage. The only way to extend tube life is to run them as close to zero as you possible can, making sure it is not so low you go into crossover distortion. Tube life is simply a matter of how hard you run the tubes. It even has a fine-tuning switch for EL-34 and KT88/KT120/KT150 tube types. The result is low to no maintenance, long tube life, and the lowest possible distortion for amazing sound.Īdaptive AutoBias also provides unparalleled flexibility by allowing use of almost any tube on the market today. Adaptive AutoBias is completely passive and NOT in the signal path. More important, it is the ONLY circuit of its kind that is truly "adaptive" by addressing "tube pinch off" at higher volumes, therefore reducing distortion by over 50% and greatly extending tube life. PrimaLuna's Adaptive AutoBias is a true, smart technology employing an array of sensors to monitor tubes and make adjustments seamlessly in real time. It reduces the available power of the amp and runs the tubes hard, meaning shorter tube life and failures via "shorts". What most companies call Auto Bias is actually "Cathode Bias"- A commonly used method that is cheap to make, and often found in guitar amps, but also $20,000 high end audio amps.
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