Moog Spectravox Spectral Processor Spectravox, the newest member of the Moog semi-modular family, is a groundbreaking tool for sculpting soundAn analog spectral processor based around a 10-band filter bank, Spectravox creates lively drones and colorful tonal sweeps on its own and adds resonant depth and psychedelic spectral movement to any external sound. Hook up a microphone and Spectravox becomes a 10-band analog vocoder with innovative integrated modulation of all of its filters. An exploration and expansion of the topology of the vocoder and filter bank, Spectravox is a highly flexible instrument and signal processor with a comprehensive patch bay for integration into studios of all sizes. Synthesists have delighted in playing with the spectrum of sound since the Moog 907 Fixed Filter Bank appeared in the 1960s, creating lush vowel tones and multicolored timbral animation with hands-on level control of each frequency band of a sound. Unlike earlier fixed filter banks, however, the