Grandioso D1

About the Grandioso D1

The Esoteric Grandioso D1 is a flagship monaural digital-to-analog converter designed for ultimate stereo performance with separate units for left and right channels. It employs sixteen AKM top DAC chips arranged to smooth out irregularities and provide high processing power, clocked by a custom NHK unit with an oversized crystal for stability. The D1 features a dual-monoblock layout with circuit boards floating above the chassis to isolate vibrations, and uses ultra-dense, in-house formulated solder for optimal contact and corrosion prevention. It supports PCM up to 384kHz/48 bits and native DSD formats, with inputs including ES-LINK, XLR, RCA, TosLink, iLink, and USB. Outputs include XLR, RCA, and clock. The D1 delivers a maximum output level of 5.0Vrms, frequency response of 5Hz–55kHz (-3dB), signal-to-noise ratio of 113dB, and distortion of 0.0007% at 1kHz. Each unit measures approximately 17.4"W x 5.1"H x 17.5"D and weighs about 52.8 pounds. The design emphasizes no-compromise build quality with CNC-machined aluminum faceplates and a monaural configuration for ideal channel separation and power supply. The D1 is often paired with the Grandioso P1 SACD/CD transport and G-01 Master Clock Generator for a complete high-end digital front end.