User Feedback for Carbon Princess™ 300B tubes and Princess™ Rigid 274B tubes - From Charlie, New Hampshire (April 2008)
Thank you so much for recommending the 300B Carbon Plate and Princess Rigid 274B tubes. These tubes make Western Electric 300B’s and my old rectifier tube in my Emotive Audio preamp sound dull and slow.
Your new tubes have brought life and dynamics to my system. They sound natural and full range without any brightness or distortion. They took about 50 to 100 hours to break in but the wait was well worth it. Thanks again.
If you come up with any future improvements to these tubes, be sure to notify me and I will not hesitate to buy them.