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Re: Sylvania 5751 3 mica gray plate (different varieties?)

Thanks for the posts Steve and Mechans. I ended up thinking the Sylvania 5751 TMBPSG were better than ALL 12AX7's (Mechans description of this tube matches what I hear). Then, I tried a little something. I took the Raytheon 12AX7 (ultra detailed with lots of high end energy) and put it in the input position of my CAT JL2. I followed it (buffer stage) with the Philips (Holland) E80CC
(very tubey sounding tube with severely rolled highs and a sluggish overall presentation). Talk about synergy! This is one case where two wrongs make perfection. I think the Sylvania 5751 TMBPSG in the
JL2 is some kind of mismatch in this circuit. It doesn't do anything wrong but the Raytheon 12AX7 just opens the soundstage (depth and incredible presence) unbelievably. I still use the Sylvania 5751 TMBPSG in the CAT Ult MK2 pre. The articulation of this tube outclasses all 12AX7's. I have so many different varieties of the 6DJ8, 12AX7 and 12AU7 families that finding this magic through the process of trying these in different positions would have literally taken a lifetime. It took understanding the strengths and weaknesses of the Raytheon 12AX7 and the Philips E80CC
presentations to surmise that they may compliment each other perfectly. CAT JL2/JL3 owners really need to hear this combo.

Bart


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  • Re: Sylvania 5751 3 mica gray plate (different varieties?) - posbwp55@msn.com 04/21/0709:38:17 04/21/07 (0)

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