What is bias a tube amp ? Is it difficult?


I am looking to purchase a Jolida 1000rc or Jolida 302b moddified and or Cayin 88t. I am new do this game and it will be my first tube amp purchase. How hard is it to Bias the tubes? What does this do? And how often do I need to do it? Also Out of these intergrated amps which will give me the most bang for the buck? I have tyler tylos . Thanks Joe
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When I was toying with the idea of moving over to the tube side, just the thought of biasing with a meter, turned me off completely to the idea of tubes. Getting down on the floor with a meter, checking, obsessing over my tubes? Forgeddabout it. So, I go for a self biasing integrated. Now, after being exposed to the beauties of tubes and becoming truly addicted to the tube sound and if I had the opportunity to purchase a tube amp (that required self biasing) to die for? I'd get down on the floor with my meter and bias away. warren:)

BTW, my SET seperates are self biasing, thank god.
I've had nothing but tube amps for 20 years. I started with the Moscode 600.Several amps latter I moved to CJ. I had the 5's for 4 years and the 8's for about the same amount of time. Both of these have the trim pots for each tube and are a breeze.--So folks don't get the wrong impression, I never did the meter thing. I would just take my amps in to have this done for me. On my Jadis, I ended up waiting till I had 2 bad tubes;then just had all the tubes replaced.---No techie,here.--
Most manufacturers whose products require user biasing, make it very simple in their current models placing biasing pots/points in convenient locations. For the most part, gone are the days where you need to remove the bottom cover and tip the unit on its' side and on and on. However, some imported products are still a PITA.

Regarding the meter, IMO everybody should own a multi-meter tubes nothwithstanding. One of the best $30-$50 investments you'll ever spend on your system.