A High Performance Rollerblock Jr.

"Received the (HDSE) rollerblocks today and have installed them. Even with the Superplus platform under my speakers, the rollerblocks under the dvd player added yet another improvement in transient response, openness, and bass tightness.
While the dvd player was in operation, I looked at the rollerblocks to see if I could [see] any movement. If there is, I wasn't able to detect it with my naked eye. However, I could definitely hear the difference in the sound. I am still amazed how eliminating those minute vibrations can impact the sound that much. Thanks again for all your great advice and the development of these fine products. The explanation of the technology is very meaningful to me, as I am a very data oriented person, having both a scientific and statistical background."

- L.S., Hawaii

HDSE stands for "Heavy Duty Special Edition" but it could also stand for "High Definition Special Edition." HDSE is identical in size and form to standard Rollerblock Jr. but has the following enhancements:

1) Top grade 7075 "aircraft" aluminum alloy body

7075 aluminum is harder than some steels and provides superior Brinnelling capacity (resistance to denting and deformation despite extreme pressure) and superior mechanical coupling to even high quality 6061 alloy.

2) Special "Hard Coat" anodized body and cup area

Hard Coat anodizing provides a thin, precision skin of ceramic-level hardness which constrain-layer damps the HDSE body and retards wear in the cup area. This is the same coating used in the Series 2 Rollerblock body.

3) High precision Grade 10 Tungsten Carbide balls standard

Tungsten Carbide is the best material for use in ball bearing isolation devices; Grade 10 means that each ball meets or exceeds a sphericity and diameter tolerance of 10 parts per million, which is 2.5 times better than the best "off the shelf" ball bearings available. These are the same high precision balls that are supplied with Series 2+ Rollerblocks, and are bettered only by the state-of-the-art Grade 2.5 Superball (see below).

HDSE was originally developed for use with heavy loudspeakers (HDSE was first introduced in the Symposium Panorama loudspeaker), but offers higher resolution and enhanced bass performance over standard Jr. versions in non-loudspeaker applications such as digital players, analog turntables, preamps, amps, power supplies and conditioners, etc. It is second in performance only to Series 2+ Rollerblocks.

HDSE may also be ordered with State of the Art Grade 2.5 Superballs for maximum resolution.