Dynamic range limitations are removed with a sonic clarity and quietude which is palpable. Small signal circuitry is based on Spectral's proven discrete circuit multiple cascode double push-pull FET technology. This reserve is linear class A with many times greater dynamic capability than program demands. It allows high current drive for quick controlled response from the large output FET's as well as isolation from their internal electronic activity. Unhindered by interferences and slow cumbersome response of conventional practice, these parts operate with unyielding control and exacting precision.
Reproduction is clean, effortless and highly holographic.
Audio amplification paths through the DMA-150 are direct, inherently linear and simple. These minimalist configurations have always sounded and measured best but normally become ponderous and overburdened when protection and support functions are added. The DMA-150 takes a different route to solve the sonic problems of amplifier protection circuitry. To maintain the pristine signal path, a sophisticated analog computing ancillary system is thermal and opto coupled within the amplifier. It takes control without circuitous cross interfering connections to electronics in the signal path, leaving the musical signal pure and totally untouched.