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Review Summary
The VA-680D Professional Digital Audio Delay for S/PDIF & Optical from Kramer Electronics is a high-performance audio delay for S/PDIF and Optical audio signals. Use this device to synchronize audio and video signals in systems with heavy digital processing or other scenarios that present sync problems.
This unit feature digital audio delay, audio format conversion and four-input switching. It will also handle multiple formats: EIAJ CP1201, IEC-60958, AES3 and S/PDIF. It will manage sampling rates from 32kHz to 96kHz and delays from 0 to 999ms in one millisecond increments.
The unit can be controlled via its front-panel interface, which also features LEDs that provide a visual indicator of line status. This model belongs to the DigiTOOLS family of products, a series noted for its compact size, making it equally well suited for standalone or rack installations.