2. amps-preamps
  3. 151214-2744

Tube amp forethought

Hello, im researching my retirement two ch audio system and tube amps are in the forefront of my “wants” my plan will be a pair of QUAD ESL’s not sure which just yet

What do i need to know about maintaining a tube amp, like a AudioResearch 120 for starters or other tube amps. Biasing is totally new to me. Tube life and modes (triode, Pentode, UltraLinear) all foreign to me.

im a 40 year hobbiest so im pretty versed, this is just an unknown territory for me, thanx guys !

kgveteran

Showing 3 responses by noromance

noromance's avatar
noromance
10,054 posts
 
It seems the OP wasn't buying the tube lore - posted a few days later looking at a Krell KSA250! 
noromance's avatar
noromance
10,054 posts
 
@kgveteran So you're young enough to want the volume pretty loud! If not, the 57s will easily sound loud enough in your room, particularly if not full of soft furnishings. There's a guy in NH that will refurb a pair of 57s for a few big ones. Pros: Exquisite sounding, fast, responds to system upgrades like you wouldn't believe, louder than you might guess, what bass there is clean and fast, magical midband, transparent and sweet. Cons: May not be loud enough, needs protection circuit if you like to crank it, 7" wide sweet spot only suitable for dedicated listening. 
noromance's avatar
noromance
10,054 posts
 
Room size, music taste, budget, near field, hearing? 
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