JeffMann's latest activity
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JeffMann replied to the thread Musician Audio Aquarius R2R DAC.I own a Musician Aquarius and a Denafrips Pontus II, and I prefer the sound quality of the Denafrips DAC. Jeff.
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).Wes, Have you ever tried using the WE300B tubes with the following driver tubes - i) KenRad 7193 tubes; ii) Russian 6C8C tubes or iii)...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).You state that you test at 150 volts, and you seem to be implying that testing at higher voltages would produce higher plate current...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).I noted that those tubes test very high with a plate current of 14 - 19.5ma. Is that possible? I have never seen such high plate...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).I have been promoting the WE300B tubes for some time now as a better sounding alternative to the Elrog 300B tubes in the Cayin HA300...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).What type of noise are you experiencing? My Cayin HA300MK2 amp is totally noise-free - despite often changing driver tubes and 300B...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).I have another question relating to tube matching of 300B tubes if one tube fails. Let's presume that one purchases a pair of WE300B...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).I do not want to debate the question as to whether non-native single triode tubes (eg. 7193, CV6, 6C8C, 6C8P tubes) used in combination...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).After reading many posts regarding 300B tube failures. I have become inspired to ask a question regarding driver tube failures. Many...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).I have had two cheap 300B tubes (Sophia Electric Mesh Plate Princess 300B tubes) fail within <3 months of use. Jeff.
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).Because the 2nd and 4th wire will be the P wires - when viewed from left-to-right from a front viewing perspective. Jeff.
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).I suspect that you will be happy with the sound of the WE300B tubes. I personally prefer them over my Elrog 300B tubes by a significant...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).I received my Deyan adapter. Only one wire of the two wires is labeled as "P". I noted that the wire labeled "P" is on the right side...
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JeffMann replied to the thread Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91).How are they labeled? Does each wire of the 4 wires have a label? Jeff.