Audio Research I/50
Guys, it’s a consumer, not an enthusiast focused product. This is a gateway drug that they’re selling to people who don’t know or care (me) and I doubt they give a crap what you think about auto bias. You’re not the target market. Not delivering what a narrow consumer base wants doesn’t make them stupid- they didn’t count on your business. At some point I may care, but I’ll trade up when I do.
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@runwell - "And I think it is pretty shorter than normal. But I do not know why." I believe the higher the bias, the shorter the tube life. All of my ARC amps had about a two-Year tube life (6550s). Carver's latest tube amps use a much lower bias and, therefore, have a 5 or 10 year tube-life (depending on model). |
@dweller You said 6550 in your amplifier last about 2 years,it is matter how long time you run the amplifier and how hard the sound make,right? If some one maintain in low sound level,the lifespan could be much longer.
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Yes. All of these factors figure into the total lifespan. Some more than other. At the time, I was playing music 4-5 hours a day (more on weekends) and got about two years from ARC factory tubes. You can probably compare tube bias to the idle speed on a car. If your idle is set to 4000 RPM, your gas won't last as long. |
