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The TU-X711 is internally identical to the TU-X701 and appears to have been the last supertuner developed by Sansui. We were all waiting for a TU-X911 which never came.
I compared my TU-X711 with my TU-X1 on an excellent local station, prior to modifying them both. The TU-X1 was warmer and more involving, bringing out subtleties that were missed by the TU-X711. Nevertheless, the TU-X711 gave a very credible performance and was only marginally outclassed.
After a substantial modification of the TU-X711 and a really major enhancement of the TU-X1, the differences were LESSENED. In fact the enhanced TU-X711 bass was deeper and tighter. I found overall that the differences were so marginal, that I sold the TU-X1 and have never looked back!
After enhancement, the TU-X711 betters almost every fully analogue tuner I’ve heard, and remains one of the two or three best sounding tuners I have ever heard, blowing away tuners with $8K+ price tags! It comfortably holds court with my $6,000 digital player and my $15,000 turntable system.
I should have mentioned that:
1. The TU-X711 had the highest stereo signal-to-noise of any tuner I had ever heard, by perhaps 10 dB or more. Listening on headphones, the faintest hiss could be heard in stereo. After modification, it was even quieter.
2. Before modification, the soundstage depth was shallow, compared to the TU-X1. That changed completely after modification, with breathtaking soundstage to match its pinpoint left-to-right stereo. This was particularly evident listening to live classical broadcasts (we have two classical FM stations with minimal or no compression, so live broadcasts can be phenomenal).
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