• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

What amp?

People allowded me to listen to this speaker.

If i go for this speaker people from KEF give me this if i want to build a good tube amplifier.

  • 75-100 Watt push-pull
  • K88-, KT90- of K150-buizen gebruiken
  • Goede stroomcapaciteit
This is from KEF regarding their Blade speakers an tubes.
 
Are you buying or building?

If building, spend the next two years reading up on high voltage safety. And researching custom transformer winders. i don’t know if any vendor who would risk the liability of making and selling a kit requiring 1kv+, particularly if you’ve never built one before. So you’ll also probably need to do some design work, even if you’re copying from a schematic.

If buying, find a vendor you trust and get them to shop for you. If the speakers are anyway $25k then you’re probably better off going this way, and this gives you some vendor or after-sale support should the amp exhibit problems. And you can probably audition several before purchase so you don’t invest time and energy into building a dud.

In the end it’s probably much less hassle and expense to adjust your expectations to either a lower wattage tube amp, or a high-quality solid-state.
 
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