The HW19, while an aesthetically "dated" design, is performance-wise, not a dated design at all. The Jr.'s main liability was it's inferior bearing/platter assembly. The original acrylic/lead/cork platter (not the Jr.) of the true HW19 is an excellent platter. Much superior to the Jr.'s lighter frosted acrylic platter. The bearing is also much better than the Jr.'s. While reconstructing the Jr. with a better plinth will most definitely improve the table, the improvement will not be nearly as sinificant as upgrading the original Jr. platter on the original Jr. plinth. The very best possible plinth material will do nothing to improve the Jr.'s problem with pitch instability, and PRAT as compared to the HW19 MK1,2,3,4. This problem had everything to do with the inferior platter/bearing. The upgrade to heavier TNT platter, combined with steel/acrylic plinth of the MK4 take the table to a level which makes it competive with many much higher priced tables. Not to mention additional possible improvements by way of SAMA, flywheel, SDS etc.
I started with a HW19 MK2 then upgraded the platter (very good in it's own right) to the heavier original TNT platter/bearing: tremendous improvement in solidity, pitch stability, PRAT.
Then to a full blown MK4 (acrylic plate) with the same platter/bearing and SAMA: nice improvement. Slightly faster, yet richer sound. But relatively subtle, and not nearly as great as the platter upgrade to the MK2.
Then I added a SDS: greatest improvement of all. Much better sense of control, improved soundstage.
Then to a hybrid TNT6. TNT6 plinth, Ginko ball suspension towers, TNT5 acrylic/steel platter, SAMA, single flywheel, SDS. More refined sound still. Quieter, improved soundstaging, slightly better bass extension.
The moral of the story (to me, based on my experience)is that if you accept that the VPI TNT is a contender for being one of the better tables around, a HW19 MK4 with SAMA, and ideally with SDS, when well situated and suspended, is not nearly as far behind as one would think given the price difference. BTW, tonearm was always the same ET2, and a variety of cartridges.
I started with a HW19 MK2 then upgraded the platter (very good in it's own right) to the heavier original TNT platter/bearing: tremendous improvement in solidity, pitch stability, PRAT.
Then to a full blown MK4 (acrylic plate) with the same platter/bearing and SAMA: nice improvement. Slightly faster, yet richer sound. But relatively subtle, and not nearly as great as the platter upgrade to the MK2.
Then I added a SDS: greatest improvement of all. Much better sense of control, improved soundstage.
Then to a hybrid TNT6. TNT6 plinth, Ginko ball suspension towers, TNT5 acrylic/steel platter, SAMA, single flywheel, SDS. More refined sound still. Quieter, improved soundstaging, slightly better bass extension.
The moral of the story (to me, based on my experience)is that if you accept that the VPI TNT is a contender for being one of the better tables around, a HW19 MK4 with SAMA, and ideally with SDS, when well situated and suspended, is not nearly as far behind as one would think given the price difference. BTW, tonearm was always the same ET2, and a variety of cartridges.