Expressimo Audio Brass Low Profile Lock Down Record Clamp (LPLD). This is a brass 3 pound clamp that fits all standard size spindles bringing marked improvements in dynamics, clarity, detail and resolution. Retail $799.
From the Resolution Audio web site:
This is NOT a sit on record weight. This is a precision LPLD Record Clamp. Expressimo Audio leaves no gap in the music, because the vinyl becomes one with the platter. VTA becomes more accurate throughout the vinyl, because the vinyl is pushed flat to the platter. Low profile mass and screws tight for precision lock down. Made from Brass with a Delrin knob.
Expressimo Audio has researched many different styles of record clamp and found that high mass above the record tends to make it wobble around. That is why we developed a LPLD record clamp that will improve great dynamic of sound, tightens the bass, more accurate alignment of the bass, giving you more low level details and also looks great.