Description
These are in beautiful condition with only minor patina on the highly polished chrome finish. They run the venerable Russian 6C33C tubes along with:
- 6H9C=6SL7
- 6H8C=6SN7
I’ve recently replaced the small tubes with NOS tubes from HiFi Town ($200).
I have spare power tubes, around a dozen in total, but they are untested, as finding a tube tester that accommodates the 6C33C tube is almost impossible. Fortunately, the amps have solid protection circuitry and the tubes are auto-bias, so you can test tube function easily with the actual amps.
NOTE! – These tubes run HOT in these amps, and I’ve lost a couple power tubes. Fortunately they go out gracefully, the amp shuts down and a red LED indicated adjacent the bad tube, or if the protection circuitry has kicked-in for any other reason.
Here’s a link to the manufacturer’s product page. These amps have been replaced with a newer design that retail for $19,000
Link to my project/review page
The Audio Mirror’s REFLECTION monoblocks are designed for speakers with a sensitivity of 88dB and above, the monoblocks can function successfully with less efficient speakers, but for optimal performance at higher volumes, speakers with 89dB sensitivity or higher are recommended. According to the manufacturer, a recent redesign of the output transformers has significantly enhanced detail and tonality, yielding improvements in low-end articulation, clearer highs, and refined midrange and vocals. (The Reflection monoblocks are currently listed as a ‘Legacy Product’ on the Audio Mirror website, and Vlad tells me that he is working on a new version of the amp.)
The amps are self-biasing and the utilization of 6C33C Russian tubes contributes to the powerful and superior sound, albeit with occasional quality control challenges. To address this, built-in protection mechanisms monitor the output tubes for over-biasing, overvoltage, arcing, and overdriving, automatically shutting down the high tension (HT) in the event of problems, and providing for a visual indication of the faulty tube.
Local pickup preferred. They sound wonderful, come take a listen.
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