{"id":19698,"date":"2025-09-25T13:01:06","date_gmt":"2025-09-25T13:01:06","guid":{"rendered":"https:\/\/masteringmansion.com\/pro-audio\/?post_type=product&p=19698"},"modified":"2026-06-18T07:42:30","modified_gmt":"2026-06-18T07:42:30","slug":"d-1-dac","status":"publish","type":"product","link":"https:\/\/masteringmansion.com\/pro-audio\/categorias\/interfaces-convertidores-y-relojes\/d-1-dac\/","title":{"rendered":"D-1 DAC"},"content":{"rendered":"
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HDR-A\u00ae<\/h2>\n<\/div>\n<\/div>\n
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You may be familiar with HDR or High Dynamic Range photography. This is an image process that dramatically increases the dynamic range of photographic light. See the comparison showing a traditional photograph versus an HDR photograph. The improvement in HDR low-level detail is stunning.<\/p>\n

Multi-path music processing is to audio what HDR is to photography. The analogy is so perfect that we\u2019re calling it HDR-A <\/strong>or High Dynamic Range Audio.<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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.In The image comparison is directly analogous to the improvement in low-level audio clarity and atmospheric depth experienced with<\/p>\n

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Realization<\/h2>\n<\/div>\n<\/div>\n
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Perfecting HDR-A<\/strong> took over 10 years of continuous research and development. The graph shows how it works.<\/p>\n

Path 1<\/strong> is an audio signal with 90dB of dynamic range, from 0dB to 90dB. Path 2<\/strong> is an audio signal with 100dB of dynamic range, from 80dB to 180dB. When paths 1 & 2 are combined, the resulting dynamic range is 180dB,<\/strong> from 0dB to 180dB. That\u2019s multi-path high dynamic range audio.<\/p>\n

Multi-path HDR-A<\/strong> offers two major advantages over traditional single-path methods. First, it significantly reduces noise and distortion (THD+N). The imersiv<\/strong><\/em> D-1 achieves a remarkable 40 nanovolts of broadband noise, which is around 40 dB lower \u2014 100 times quieter \u2014 than today\u2019s best DAC designs. In fact, the D-1\u2019s self-noise is 25dB below the measurement capability of today\u2019s leading test equipment, such as the APx555B (see FAQ).<\/p>\n

The second advantage is untethered headroom. HDR-A<\/strong> technology allows us to boost high-path headroom to any level<\/em> without affecting our quiescent self-noise. The D-1 provides +22dBu (10 volts) of ISO-free* headroom while maintaining its profoundly low 40nV self-noise floor. This results in a true broadband, unweighted linearity and dynamic range of 28 bits<\/strong> or 168dB.\u00a0 (*inter-sample overs or inter-sample peaks)<\/p>\n

Multi-path is the next design standard of audio architecture, from microphone to power amp, and everything in between.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Purity<\/h2>\n<\/div>\n<\/div>\n
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Acoustic recording engineers \u2014 whether in film scoring, classical music, jazz, or other genres \u2014 understand that spatial information is conveyed in the quiet moments:\u00a0 in the space between notes;\u00a0 in the subtle decay of a piano chord just before it fades from perception;\u00a0 in the brief instant a note is first struck, before it reaches its peak. Quoting one of today\u2019s top recording engineers, \u201cOn the music side, everything in the quiet neighborhood is where we get the \u2018life\u2019 and spatial cues in a recording. Distortion of lower-level partials is the very first casualty of any acoustic recording.\u201d<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Extraordinarily pure low-level<\/em> audio is a key reason why HDR-A<\/strong> topology delivers improved spatial and timbral realism compared with legacy single-path DACs. When audio levels drop below a certain threshold, HDR-A<\/strong> begins processing in a<\/strong><\/em> new DAC core<\/strong><\/em>\u00a0\u2014 with dramatically lower distortion+noise (THD+N) performance.<\/p>\n

See diagram. Compare a low-level, perceptible sine wave on the D-1 multi-path DAC versus a high quality single-path DAC. Single-path waveforms are jaggy and noisy. We hear this as poor image definition, atmospheric collapse, and a blurring of complex timbres \u2014 while HDR-A<\/strong> \u201cnew core\u201d signals remain pure and natural, even far below the limits of human hearing.<\/p>\n

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Pedigree<\/h2>\n<\/div>\n<\/div>\n
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Built upon 35 years of innovation in pro-audio design and U.S.-based manufacturing, the imersiv<\/strong><\/em> D-1 embodies a heritage of excellence that has shaped the sound of our era\u2019s most celebrated recordings. Millennia\u2019s 2019 induction into the NAMM Technology Hall of Fame acknowledges our lasting influence and commitment to redefining professional audio. We adhere to aerospace-grade design, build, and QA standards, required by our esteemed clients \u2014 ranging from classical music recording engineers, broadcast engineers for major events like the Grammys and Oscars, and film scoring stages from Hollywood to Mumbai. It\u2019s no surprise that pre-owned Millennia products consistently achieve top resale value within their professional categories.<\/p>\n

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Specifications<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Supported
\nInput
\nFormat<\/td>\n		32kHz to 384kHz
\nup to 32-bits.
\n1xDSD, 2xDSD,
\n4xDSD,\u00a0Dante<\/strong><\/td>\n<\/tr>\n
Digital
\nInputs<\/td>\n		1x USB (B) 32-bit
\n1x AES XLR
\n3x SPDIF BNC
\n1x Toslink
\n1x\u00a0Dante<\/strong>\u00a0(option)<\/td>\n<\/tr>\n
XLR Analog
\nOutputs<\/td>\n		+22dBu diff-bal
\n(9.75Vrms) max
\n@ 1.8 ohms
\nquiescent
\nsource impedance<\/td>\n<\/tr>\n
Level
\nControl<\/td>\n		0.1dB or 1.0dB per step, selectable,
\n154dB range (-130 to +24dB)<\/td>\n<\/tr>\n
Manual
\nAlignment<\/td>\n		To 0.01dB left +
\nright matching<\/td>\n<\/tr>\n
Display<\/td>\nMonochrome
\nOLED 256 x 64<\/td>\n<\/tr>\n
Front Panel
\nSwitches<\/td>\n		Input, Setup,
\nSelect, Filter, Mute<\/td>\n<\/tr>\n
Remote
\nControl<\/td>\n		IR, 27 functions, 4
\nreserved, 2 AA
\nbatteries required<\/td>\n<\/tr>\n
Powering<\/td>\n90-240V 50-60Hz<\/td>\n<\/tr>\n
Power Use<\/td>\n15 Watts nominal<\/td>\n<\/tr>\n
Chassis
\nDimensions<\/td>\n		8.6\u201dW x 16.3\u201dD x
\n3.2\u201dH (218W x
\n414D x 81H mm)<\/td>\n<\/tr>\n
Weight<\/td>\n7 pounds 7 oz
\n(3.4kg)<\/td>\n<\/tr>\n
Shipping
\nDimensions<\/td>\n		21\u201d x 21\u201d x 8\u201dH (53 x 53 x 20 cm)<\/td>\n<\/tr>\n
Shipping
\nWeight<\/td>\n		12 pounds (5.5kg)<\/td>\n<\/tr>\n
Included
\nAccessories<\/td>\n		Power Adapter,
\nIEC Power Cable,
\nRemote Control,
\n2 AA Batteries,
\nQuick Start Guide,
\nBNC to RCA
\nAdapters (3)<\/td>\n<\/tr>\n
Temperature Range<\/td>\n32\u00b0F to 104\u00b0F (0\u00b0C to 40\u00b0C)<\/td>\n<\/tr>\n
Humidity Range<\/td>\n35% to 85% RH, non-condensing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
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Frequency
\nResponse<\/td>\n		20Hz \u2013 20kHz +\/-0.1dB<\/td>\n<\/tr>\n
THD+N at
\n1kHz
\n(22kHz BW)<\/td>\n		0.0002% at +22dBu<\/td>\n<\/tr>\n
THD+N at
\n20kHz
\n(80kHz BW)<\/td>\n		0.0005% at +22dBu<\/td>\n<\/tr>\n
Self-Noise
\n20Hz-22kHz bandwidth<\/td>\n		-146dBu unweighted
\n(calculated)<\/td>\n<\/tr>\n
Dynamic
\nRange<\/td>\n		168dB (28-bits)<\/td>\n<\/tr>\n
Signal-to- Noise Ratio<\/td>\n168dB (28-bits)<\/td>\n<\/tr>\n
Linearity<\/td>\n168dB (28-bits)<\/td>\n<\/tr>\n
Crosstalk<\/td>\nBetter than -120dB at 1kHz<\/td>\n<\/tr>\n
Headphone
\nOutput<\/td>\n		32ohm to 600ohm
\n2.8W max<\/td>\n<\/tr>\n
DC Offset<\/td>\n20uV max
\nquiescent<\/td>\n<\/tr>\n
Digital
\nFilter<\/td>\n		6 selectable
\nvariations, see user
\nguide<\/td>\n<\/tr>\n
Polarity Flip<\/td>\n180 degrees<\/td>\n<\/tr>\n
Mute<\/td>\nOutput Relay<\/td>\n<\/tr>\n
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Resampling<\/td>\n192kHz<\/td>\n<\/tr>\n
Calibration<\/td>\nSee user guide<\/td>\n<\/tr>\n
NOTES<\/td>\nPerformance
\nspecifications are
\nbroadband &
\nunweighted.\u00a0 Specifications subject to change without notice,<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

HDR-A\u00ae You may be familiar with HDR or High Dynamic Range photography. This is an image process that dramatically increases the dynamic range of photographic light. See the comparison showing a traditional photograph versus an HDR photograph. The improvement in HDR low-level detail is stunning. Multi-path music processing is to audio what HDR is to […]<\/p>\n","protected":false},"featured_media":19700,"template":"","meta":[],"pwb-brand":[982],"product_brand":[],"product_cat":[1027],"product_tag":[966,984,983],"class_list":["post-19698","product","type-product","status-publish","has-post-thumbnail","pwb-brand-imersiv","product_cat-interfaces-convertidores-y-relojes","product_tag-convertidor-da","product_tag-d-1","product_tag-imersiv","first","instock","taxable","shipping-taxable","product-type-simple"],"brands":[{"id":982,"name":"IMERSIV","slug":"imersiv"}],"_links":{"self":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product\/19698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media\/19700"}],"wp:attachment":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media?parent=19698"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/pwb-brand?post=19698"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_brand?post=19698"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_cat?post=19698"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_tag?post=19698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}