2. amps-preamps
  3. 1072703247

300B which way to go?

Hi,

I have never heard any amp with this tube before. But I have been doing plenty of reading on tubes. So I'm curious. Can anyone give me some pointers about 300B tube amps? How many watts do I need to run a pair of 89db speakers? I'm leaning heavily in the direction of Meadolark. I'll be running a Rouge 99, or a Cary SLP-88 pre to start, and upgrading when I get rich (**)

I see these amps for sale all the time at Audiogon, with the watts ranging from 8-40. I don't know much about single-end vs. push-pull. Also is " class A " push-pull a quality way to go with a 300B amp? I am also interested in a integrated 300B amp perhaps.

Can anyone give me some ideas? I was thinking of a starter amp, but I see people dumping these things for 30 cents on the dollar, so might as well jump right in! But it does cause me some concern about the performance.
theseeker

Showing 1 response by ejliu

ejliu
109 posts
 
The impedance curve of the speaker will matter more than efficiency. Efficency determins loudness but impedance curve can determine the amount of distortion.

Most SET amp have high output impedance that will interact with speaker impedances. So you want to look for for a steady speaker impedance > 6 Ohms through out frequency range with low phase angle. Every speaker manufactor should be able to furnish you with this information.
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