For the Subaru comparable tube, look for the Amperex 6922 PQ USA White label. 95% of the Amperex Pinch Waist 6922 PQ without the astronomical cost or spotty reliability.
I wonder why no one has mentioned the Siemens E188CC/7308 as an alternative. The high end is just slightly relaxed(ala the PW), but the tube still retains the liquid/3D midrange of the CCa. A slightly more controlled bottom(but no loss of extension)compared to the PW. I've a pair of these as my "back-ups".
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