Fun video on how 300B tubes are being made in the old Reflector factory by New Sensor.

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(42 votes, average: 3.83 out of 5)

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“Taller soundstage, much more air, more snap on bass, deeper soundstage, more upper frequency detail…”

(13 votes, average: 2.62 out of 5)

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“…slightly less musical, with slightly more control and better focus, and was slightly better in the bass.” Read

Older guide for 300B tubes – some tubes in the list are not produced any longer – Still worth reading. In Search of the Perfect 300B Tube

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(18 votes, average: 4.11 out of 5)
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“the Royal Princess is much better through the mid-range than the Western Electric was” Read

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(92 votes, average: 3.70 out of 5)
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(4 votes, average: 4.00 out of 5)
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“The JJ Electronic 300B seems to have all the things i love about 300B tubes! What more can i say then that? May i humbly suggest you try the JJ Electronic 300B? You too might find yourself in love while enjoying the music.” Read

“In other words, the EAT (and JJ) veered nearly too deep into transitorized sound with the kind of material that vintage lovers would likely favor. ” Read

“Sonically this valve failed to convince, sounding bright, harsh and edgy. Soundstaging was lacking too. One positive side, the bass was quite strong and well defined but the overall tonal balance was subjectively objectionable and faintly unpleasant. ” Read

“JJ tubes are probably the smoothest sounding tubes next to NOS tubes themselves.” Read

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