ROHM Semiconductor Launches 32-bit MUS-IC Series DAC for Reference-Class Audio Equipment

Japanese electronic component manufacturer ROHM Semiconductor has a strong connection with music and audio, being the source for a wide range of audio converters, amplifiers, and processors. Recently, ROHM started a new development project for a variety of new high fidelity solutions supporting high resolution audio. First in the new MUS-IC range and now available is the ROHM BD34301EKV, a 32-bit D/A converter designed for high-end audio designs. ROHM also launched the BD34301EKV-EVK-001 evaluation board available via distributor channels.

JBL Professional introduced FIR (Finite Impulse Response) Tunings for its AE (Application Engineered) Series, providing further enhanced performance for the premium installation loudspeaker line. 70 individual AE Series FIR filter files ensure support for a wide range of configurations and applications, optimizing frequency response and phase response to a finer degree of precision than traditionally possible with standard IIR “parameter-based” filters.

This Voice Coil’s Spotlight, written by Vance Dickason with commentary from Floyd Toole, Wolfgang Klippel, Andrew Jones, and James Croft, focuses on Zero Phase in Studio Monitors. As Dickason explains, "the implication of using FIR filters to zero out the phase of a loudspeaker to improve its subjective performance seems inherently flawed given all the research done over years that concluded that the human ear is not very sensitive to phase or group delay." This article was originally published in Voice Coil, October 2019.

The K-array KH8 line array loudspeaker system has been purpose-designed for steering and coverage optimization by AFMG’s FIRmaker Technology. With this implementation, the Ahnert Feistel Media Group (AFMG) sees an ideal combination of his revolutionary sound optimization tool with the innovative K-array fully digital concept.