D/A Converter Board


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The OP-DAC1 is an optional D/A converter board designed exclusively for ESOTERIC products that has dedicated board slots. The OP-DAC1 has x1 USB, x1 coaxial and x1 optical digital inputs. The coaxial and optical inputs are compatible with both 192kHz/24-bit PCM, while the USB port supports asynchronous transmission and native playback of 2.8/5.6/11.2MHz DSD and 384kHz/32-bit PCM. Utilizing Esoteric’s proprietary PC driver software in combination with its free HR Audio Player, the OP-DAC1 provides high-resolution playback of even studio master-quality source files.

ESOTERIC HR Audio Player

Windows/Mac application for 11.2MHz DSD and 384kHz PCM audio file playback. Available for download, free of charge.

Supported file formats
DSF DSDIFF DSD 2.8 / 5.6 / 11.2MHz
PCM(wav) FLAC 44.1k – 384kHz,16 – 32bit
ALAC AIFF 44.1k – 384kHz,16 – 32bit
[ OP-DAC1 specifications ]
Digital Audio Inputs RCA Terminals x1
Input Level 0.5Vp-p
Input Impedance 75Ω
Input Signal Formats 32 – 192kHz, 16 – 24-bit
Linear PCM (IEC 60958 format)
Optical Digital
Input Level -24.0 to -14.5dBm (peak)
Input Signal Formats 32 – 192kHz, 16 – 24-bit
Linear PCM (IEC 60958 format)
USB Port
(B Connector)
Input Signal Formats 32 – 384kHz, 16 – 32-bit, Linear PCM
2.8MHz, 5.6MHz, 11.2MHz DSD



Pending Arrivals. Pre-Order Today!

Since 1987, Esoteric has pursued a path dedicated to being a superior high-end audio/video brand focused on introducing components of the best value by merging innovative, proprietary recording and replay technologies. In order to meet the desires of musical and visual connoisseurs who are seeking new levels of excitement, Esoteric’s mission has been to continue to develop and release new products that improve upon the "state of the art", from highly acclaimed pure audio/video source devices to Super Audio CD and DVD components. Esoteric applied its no-compromise philosophy with the same intense consideration to its flagship Grandioso series to produce the next dimension of sound and audio immersion. With the Grandioso series, Esoteric sought to eradicate ANY distortions and colorations by taking a fresh look at entrenched norms and design elements, and by scrutinizing every last design detail – no matter how minute. All of the design tweaks, too numerous to elaborate here, yield an exceptional sonic purity that sweeps away distractions and enables listeners to experience an unprecedented level of musical detail and stunning visual presentation. Overture, as a provider of the “ultimate” audio/video products, is a select dealer for Esoteric and its Grandioso line. If you are interested in purchasing Esoteric or Esoteric's Grandioso components and have an electronic component or more that you would like to trade-in, please fill out Overture’s Trade-In Form.