Rockport Technologies

Sony Custom

Turntable

Main Details
Maker Rockport Technologies Brand Andy Payor Designer Demian Martin Designer
Function
Channels/Tracks
  • 2 × Channel
Form Factor Floorstanding
Signal Path Analog Hardware
Made In United States
Date Produced 1995
Weight 800lbs
Notes Custom designed and built for Sony following their acquisition of Columbia Record's back-catalog to allow transfer of pre-tape masters to and release on digital media. Based on the Sirius II, only three were built. One currently resides at Battery Mastering Studios in New York.
Additional Specifications
Speed Select 33.333 rpm
Speed Select 45 rpm
Speed Select 39 rpm For half-speed 78.26 rpm masters
Speed Select 78.26 rpm
Speed Adjust (Pitch) ±10%
Drive Type Belt Drive Kapton belt, 0.002" thickness
Platter Dimensions 10", 12", 16" Interchangeable, Vacuum hold-down
Platter Machined Aluminum Sub-Platter, Constrained-layer Damped Aluminum/Acrylic Upper Interchangeable Vacuum locked
Platter Suspension Air-bearing Radial and Axial
Plinth Constrained-layer Granite/Polymer High-hysteresis polymer between two 3" machined granite slabs
Plinth Mass 500lbs
Plinth Suspension Pneumatic
System Frequency Resonance 0.75Hz
Vibration Attenuation 12dB/oct above resonance
Tonearm Linear Tracking, Air-Bearing
Tonearm Composition Eight-ply, constrained-mode damped, Carbon Fiber/Epoxy Composite
Tonearm Wiring 99.999% copper Litz
Headshell Detachable, LEMO
Displays/Indicators
Type: LED Alphanumberic
Indication: RPM
Controls
Parameter: VTA Adjustment
Parameter: Cueing Lever

Comments

Archive6000 posted 2 weeks ago:

Hello, I am a mastering engineer that does alot of restoration of masters using records. 800 pounds? This is what I call over engineered! This would be a great piece of equipment to use to CUT a record....but really, is that necessary?

I use a PC, which is a super-computer compared to what they had in 1995. I use 192Khz stereo sample rate, and huge collection of various software. I have proprietary technique that removes surface noise and ticks and pops, but leaves guitar picks and the resonance and sharpness of brass instruments, and retains the tape hiss and noise, while removing the surface crackle and rumble. My proprietary process works so well that when I am done, I can decode Dolby A from the transfer if the Dolby was not decoded when the record was cut.

I do half-speed transfers sometimes, especially for records that are cut too loud or have phase issues. Mono records like LPs from the 50's are easy to deal with because when playing them on a stereo cartridge, the redundancy of the channels makes it easier to remove the surface noise. 78 rpm type records work the same way, though some are vertical-lateral and some are horizontal cuts, so a stereo cartridge on a big stylus obtains more sound. Further, really old mechanical recordings like those cut from an un-amplified "horn" can sometimes produce stereo sound using post transfer processing.

This isn't really needed anymore.

Archive6000 posted 2 weeks ago:

If the platter is heavy enough, you could use it to CUT records!

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