Sophia ElectricRoyal Princess 300B usedSophia Electric Royal Princess 300B  matched pair tubes, best sounding 300B ever madeThis pair Sophia Electric Royal Princess 300B tubes is a light used demo pair in like new condition with 30 days warranty. No wooden box for this pair.This Royal Princess 300B tube won Positive Fe...620.00

Sophia Electric Royal Princess 300B matched pair tubes, best sounding 300B ever made

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Ships fromVienna, VA, 22182
Ships toWorldwide
Package dimensions9.0" × 9.0" × 9.0" (3.0 lbs.)
Shipping carrierUSPS
Shipping cost$20.00
AverageResearch Pricing

This pair Sophia Electric Royal Princess 300B tubes is a light used demo pair in like new condition with 30 days warranty. No wooden box for this pair.

This Royal Princess 300B tube won Positive Feedback Writers' Choice Awards:

Hands down, my favorite component of 2011 was the $1200 per pair Sophia Electric Royal Princess 300B vacuum tubes that I wrote about in Issue 57. I like the Royal Princess 300B vacuum tubes better than any other 300B I've encountered. The Royal Princess' particular combination of spectacular sonic performance and intense musicality makes it totally unique in my experience. Usually you just get one or the other: the musicality of the ye olde Western Electric benchmark, or the linear 'clean' sonics of the various neo-300B tubes on the market. With the Royal Princess you get both superior sonics and superior musicality in one package. The Royal Princess is a new production vacuum tube that has vintage-like mid-range magic comparable to the original Western Electric 300B, yet betters that fabled benchmark in the highs and lows.

The sort of musical realism and dynamic truths that the Sophia Electric Royal Princess 300B vacuum tubes brought to my Hi-Fi system always thrilled and edified me. Its overall presentation leans to the dark, warm, and musical side of life. It is also sonically very spectacular, being detailed, extremely dynamic, providing a huge sense of space, solid & vivid imaging, and a wide and deep soundstage. Usually you don't find dark, warm, and musical combined with spectacular sonics, but in the Royal Princess you do.

These sonic and musical traits combine in the Royal Princess to deliver a breathtaking musical realism to recorded performances, with instruments displaying rich and detailed timbral textures, deeply infused tonal colors, and an overall sense of drama that kept me on the edge of my seat, listening into the music with anticipation for what was to come next.

Writer Jeff Day

Terry London: As a staff reviewer for hometheaterreview.com I have been on a marathon reviewing both mono-block and integrated 300B amplifiers. Some are push/pull, single-ended and parallel designs. In any of these amps when I replaced the Full Music 300B stock tubes with the Sophia Electric Princess mesh plate 300b tube, the performance was significantly improved across ever measure. Read my prior statement here on the Sophia Electric, Inc. website for the exact specifies of why the Princess mesh plate is such a superlative sounding tube.

In that short review I stated "what the heck would their Royal Princess 300b sound like" because it was hard for me to believe that it could perform even on a higher level than the Princess mesh plate. Well, it does and at a level that is not just a touch better, but goes to a much a higher level across the total sonic spectrum. Here's what I have heard:

1) The most natural tone and timbres I have ever heard in my reference system.

2) The overall macro-dynamics/power has increased as if my system was being "turbo-charged" in its delivery.

3) More micro-dynamics and details with even a lower noise floor.

4) The high end extension and air is the best I have ever gotten out of my Lawrence Audio Cello speakers that use AMT drivers on the top end.

5) Another very special quality of the Royal Princess tube is how it brings you that much closer to the emotional content of the music you are listening to.

So, when I posed the question "what the heck would their Royal Princess 300b sound like", the answer is like beautiful/natural music floating into your listening space. Quite magical, indeed!

Terry London, Staff Reviewer for hometheaterreview.com.

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