The Access Virus TDM is a virtual analog synthesizer and multi-effects processor. It is a hardware version of the popular Access Virus software synthesizer. It features two analog oscillators, two digital oscillators, two multi-mode filters, two LFOs, two envelope generators, and a modulation matrix. It also includes a range of effects including chorus, delay, reverb, and distortion. The Virus TDM is capable of producing a wide range of sounds, from classic analog leads and basses to modern digital sounds.