Puresound is well known for its electronics but also its love for vinyl. As a replacement for there popular Rubato copper mat, they designed the Tenuto : a precision machined turntable mat made of Gunmetal (an alloy mixing copper with tin and zinc).
The Tenuto mat adopt a revised surface profile allowing an optimal platform for vinyl records. The edge of the label rebate sits 1mm lower than the outer edge of the mat and the rebate itself is less deep than on the Rubato mat. This allows records to sit much more snugly to this profile and can be played with or without clamp.
Weighting 2.2 kg and 5 mm thick, the Tenuto will require that most suspended subclasses turntable designs are readjusted to provide a level platform. This could be also the right opportunity to check out the setting of your tonearm as the vertical tracking angle (VTA) of your cartridge will have been slightly altered (as well as the VTF for a certain tonearms).
The additional mass will increase the kinetic energy stored by the platter of your turntable while affording very effective damping of the unwanted resonance that many alloy platters can contribute to the sound of vinyl playback. The Gunmetal also provides a more appropriate impedance match allowing energy imparted into the vinyl by the stylus to be dissipated harmlessly.
The Tenuto mate also makes a fine partner for the platters of powerful, high quality, direct drive turntables and has been shaped to fit the SP-10 mk2 perfectly. Lenco and Garrard users have also enjoyed good results.