Ray Tubes Select 12AT7

Using the P75 Ray tubes provided a step up in the upper low to midrange bite. A noticeable presence that I do enjoy!

Used in gallion P75 clarity but less natural

Used in gallion P75. Need 200 to 300 hours burnin. Provided a good level of clarity but lack some natural tone using all four compared to some psvane and mullards i have. Better with only 2 with 2 of other brands.

If you want more detail sound and better sound stage the Ray tubes are great for your preamplifier