In the SA 4000, we threw in everything including the kitchen sink! Multiple selectable inputs - of which one is RIAA Equalized Phono, mic mixing, tape and headphone monitoring, record and preamp outputs, bass management ... you name it - the SA 4000 has it! We even implanted a shiny blue LED on the brushed aluminium dial so that the SA 4000 retains a classic feel. The SA 4000 performance can be expressed in a single word - smooth! It has very low crosstalk, noise and distortion and a high damping factor. Hence, musical colouration is at a minimum, and dynamics and soundstaging are brilliant. It can handle loads down to a respectable 4 Ohms while retaining total control over power, tonality and musicality ... this amp simply will not quit on you! So go ahead. Pull out your favourite LPs, CDs and tapes and let the SA 4000 work it’s musical magic.