The optional Basis Vacuum Record Hold-Down System applies a controlled level of negative pressure to the underside of the record guaranteeing a perfectly flat record that is so effectively coupled to the platter that record resonance is totally eliminated.  Each record becomes a twenty-pound record!  The true musical tonality and texture captured on the record are revealed, without any added coloration of vinyl resonance.  No system, other than gluing the record to the platter, can result in such perfect resonance control.  Tests of record outer rings, never considered at Basis due to resonance problems of their own as well as the danger they present to the stylus, show only a twenty percent coupling compared to the Basis Vacuum System.   

The vacuum system restores even the most warped record to exact flatness, eliminating speaker damaging and power robbing “woofer pumping” due to record warps.  Dynamics, imaging, musicality, bass power, and tracking ability are all brought to levels unreachable without the Basis Vacuum system.

The Basis conceived HFLV (high flow, limited vacuum) system combines rapid record pull-down with the gentlest possible handling of records.  The laboratory-grade vacuum regulator and the precision vacuum gauge assure the user of consistent, gentle vacuum application while allowing total adjustability and flexibility.  The remote pump allows flexibility in placement and assures silent operation of the system.