Asahi Kasei Microdevices to Debut AK491x Series High-Quality Audio Op-Amp ICs at HIGH END Vienna 2026

AKM Unveils AK491x Series Op-Amps for Premium Audio Systems

Asahi Kasei Microdevices Corporation (AKM) will debut its newly developed AK491x series of operational amplifiers (op-amps) for high-quality audio products at HIGH END Vienna 2026. The international audio exhibition will be held in Vienna, Austria, from June 4 to 7, 2026.

### Extending 'VELVET SOUND™' to the Analog Output Stage The AK491x series applies AKM’s proprietary 'VELVET SOUND™' philosophy—originally perfected for DACs—to the analog output stage. The series includes two models: - **AK4911**: Single-channel version - **AK4912**: Dual-channel version

### Superior Audio Specifications Designed to match the performance of high-end DACs like the AK4499EX, the AK491x series delivers industry-leading specifications: - **Ultra-low Noise Density**: Achieves 0.96 nV/√Hz to minimize signal interference. - **Excellent THD+N**: Reaches an extraordinary -150 dB at 1 kHz. - **High Output Drive Capability**: ±100 mA ensures stable sound quality even under demanding loads, such as multi-channel signal summing.

### Developer Insight from Seiko Nakamoto "We developed the AK491x series focusing on the 'listening experience' rather than just specifications," said Seiko Nakamoto, Lead Expert in High Quality Audio Product Development. "Our goal was to combine clear detail with natural spatial expansion to create a truly immersive sound world."

### Exhibition and Availability - **Venue**: HIGH END Vienna 2026, Hall X2, Booth E07 (Austria Center Vienna) - **Availability**: Samples are currently available. - **Mass Production**: Scheduled to begin in early 2027.

At the exhibition, AKM will also demonstrate sound field correction technologies for home audio. Technical briefings and listening sessions with AKM engineers will be available by prior appointment.