Good advise re upgrading the HW19. The biggest shortcoming of the HW19 Jr was the platter. It's lower weight compared to the HW-19 MK1, 2, 3, and certainly the MK 4 platters resulted in lower rotational inertia, hence poor speed stability; and also a lighter, less weighty sonic signature. The MK4 platter is definitely the ticket, but the regular acrylic/lead platters in the MK1-3 versions were also very good and a clear improvement over the Jr.'s. The MK4 platter is also more money and requires a thicker arm board, hence replacement of your Jr's arm board-less plinth.
I assume you have the Audioquest arm that was part of the Jr. "package".
Keep this in mind: the improvement of going from the Jr. platter to the regular Mk 1-3 acrylic/platter is greater than the improvement from that platter to the MK 4. The Audioquest arm (if that is what you have) was a decent arm. If your budget is a strict $1500, IMO the biggest bang for the
buck would be replacing the Jr. platter with a MK 1-3 platter, replacing your cartridge with something that grabs your attention after reading this:
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1200430667&&&/Who-needs-a-MM-cartridge-type-when-we-ha, and buying a used SDS.
Good luck.
I assume you have the Audioquest arm that was part of the Jr. "package".
Keep this in mind: the improvement of going from the Jr. platter to the regular Mk 1-3 acrylic/platter is greater than the improvement from that platter to the MK 4. The Audioquest arm (if that is what you have) was a decent arm. If your budget is a strict $1500, IMO the biggest bang for the
buck would be replacing the Jr. platter with a MK 1-3 platter, replacing your cartridge with something that grabs your attention after reading this:
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1200430667&&&/Who-needs-a-MM-cartridge-type-when-we-ha, and buying a used SDS.
Good luck.