Products    VSP Cable

PBU-devs proudly presents the PBU VSP high end instrument cable.

The PBU VSP cable combines the time-honored traditions of the tube sound with modern technical solutions, with new construction materials being utilized and individual approach being taken to each aspect of soldering to ensure the identical functional characteristics of all cables. The PBU VSP cable will give you uncompromising sound quality along with unmatched reliability and elegant design.

VSP Cable in action. VSP Cable in action.

Materials


We at PBU-devs realize the importance of using components of high quality to produce top-notch products. That’s why all parts of the PBU VSP cable are produced by internationally renowned manufacturers.

Inner structure of the cable.

Sommer Cable Classique produced by a leading German company is well known among professional musicians. Its capacitance of 80pF and resistance of 40mOhm per meter enable to reproduce the whole spectrum of sound frequencies emitted by sources with wide range of output impedances, like electric guitars and other musical instruments with passive pickups. Unlike most instrument cables, Sommer Cable Classique employs braided shielding (not stranded as in most cables) which does not move or spread leaving gaps and is much more resistant to bending deformations. The second shield is made of conductive polymer; and the resulting combination completely blocks out all electromagnetic noise. A thick layer of high-quality polyethylene insulation around the central wire ensures an extremely low cable capacitance. The outer jacket is made of PVC with textile braid and guarantees high durability over a wide temperature range, which is crucial for stage performances.

Amphenol plug set on cable

Connectors for the PBU VSP cable were manufactured by Amphenol, the Australian company that produces, since 1932, top-class connectors utilized even in the aerospace industry. Robust metallic case with tight-fitting gold-plated contacts, rubber damper and unique design are the signature marks of Amphenol connectors. Among all products available, we chose the basic colletless model which enables to crimp a cable as close to the jack as possible to minimize the movement of the plug in the jack when the cable is yanked. It is also essential that the connector has a small outer diameter and can easily be inserted even into a flush-mount or closely-spaced jack.

Technologies


There’s a recent trend among the high-end cable manufacturers to use non-soldered connections (such as Planet Wave, etc.); but experts in the field know that the newest technology is not always the best. Soldering has been employed in electronics for more than a century and there’s no technique to surpass it in reliability and durability. The so-called leadless (RoHS) technology, rather popular now, does not even come close to the traditional solder alloys in a number of aspects. That is the reason why we prefer to use the conventional lead-tin-silver solder alloys to achieve the required quality of joints for the cables of this class. Special attention is paid to a cable being mechanically secured in the plug. To that end, not only we employ lamella clamping but also tie the cable with a synthetic thread, later glued into and clamped with a heat shrink tube. Thus, soldering a cable to a plug is an elaborate multistage operation, which can be illustrated by the following series of photos:

Stripping off the textile braid from a cable and tying it with a thread.

Cleaning up textile braid and winding it with the thread.

Installing a plug case and an insulation and heat shrink tubes, removing the outer jacket.

Putting on the plug's case, insulation and thermocontractable tubes, cleaning up outer insulation.

Braiding the shield, stripping off the conducting polymer and inner insulation, tinning conductor ends.

Interweaving of shield, cleaning up of conducting polymer and inner insulation, tinning conductors' endings.

Tinning the plug lamellas.

Tinning the plug's lamellas.

Soldering conductors to the lamellas, crimping the cable, additionally securing it with a thread.

Soldering conductors to lamellas, wringing out cable, additional wringing out with thread.

Shrinking the heat shrink tube and installing the insulation tube.

Thermo-tube contracting and putting the insulation tube on.

Securing the plug case.

Plug's case fixation.

Finally, we would like to warn you against using services of non-professionals that are likely to produce result like this:

Vivid example of poor-quality plug soldering.

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