{"id":11288,"date":"2021-06-27T13:42:36","date_gmt":"2021-06-27T11:42:36","guid":{"rendered":"https:\/\/magnahifi.com\/?post_type=product&#038;p=11288"},"modified":"2024-04-23T19:28:10","modified_gmt":"2024-04-23T17:28:10","slug":"holo-audio-spring-3-dac-level-2-r2r-dsd1024","status":"publish","type":"product","link":"https:\/\/magnahifi.com\/de\/holo-audio-spring-3-dac-level-2-r2r-dsd1024\/","title":{"rendered":"HoloAudio &#8211; Spring 3 DAC Level 2 (R2R &#8211; DSD1024)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/www.kitsunehifi.com\" target=\"_blank\" rel=\"noopener\">From US or Canada? You are welcome at Kitsun\u00e9<\/a><\/span><\/p>\n\t<section class=\"section dark\" id=\"section_1121987467\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" 0>\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<h2 style=\"text-align: center;\"><\/h2>\n<h2 style=\"text-align: center;\"><a id=\"DOCUMENTATION\"><\/a><div class=\"message-box relative dark\" style=\"padding-top:15px;padding-bottom:15px;\"><div class=\"message-box-bg-image bg-fill fill\" ><\/div><div class=\"message-box-bg-overlay bg-fill fill\" ><\/div><div class=\"container relative\"><div class=\"inner last-reset\"> REVIEWS <\/div><\/div><\/div><\/h2>\n<table style=\"margin-left: auto; margin-right: auto;\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><a href=\"https:\/\/www.audiosciencereview.com\/forum\/index.php?threads\/measurements-preview-of-holo-audio-spring-3-dac-wpreamp-prototype.22083\/\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1750 aligncenter\" src=\"https:\/\/magnahifi.com\/wp-content\/uploads\/2020\/05\/logo-audiosciencereview.png\" alt=\"\" width=\"294\" height=\"47\" srcset=\"https:\/\/magnahifi.com\/wp-content\/uploads\/2020\/05\/logo-audiosciencereview.png 400w, https:\/\/magnahifi.com\/wp-content\/uploads\/2020\/05\/logo-audiosciencereview-300x48.png 300w, https:\/\/magnahifi.com\/wp-content\/uploads\/2020\/05\/logo-audiosciencereview-20x3.png 20w\" sizes=\"(max-width: 294px) 100vw, 294px\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><\/td>\n<td style=\"text-align: center;\"><a href=\"https:\/\/www.the-ear.net\/review-hardware\/holoaudio-spring-3-dac-level-2-digital-analogue-converter\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11879 aligncenter\" src=\"https:\/\/magnahifi.com\/wp-content\/uploads\/2021\/08\/The-Ear-Best-Buy-e1629283620522.png\" alt=\"\" width=\"137\" height=\"78\" srcset=\"https:\/\/magnahifi.com\/wp-content\/uploads\/2021\/08\/The-Ear-Best-Buy-e1629283620522.png 100w, https:\/\/magnahifi.com\/wp-content\/uploads\/2021\/08\/The-Ear-Best-Buy-e1629283620522-20x11.png 20w\" sizes=\"(max-width: 137px) 100vw, 137px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\">\n\t\t<div class=\"tabbed-content\">\n\t\t\t<h4 class=\"uppercase text-left\">Video Reviews<\/h4>\n\t\t\t<ul class=\"nav nav-pills nav-uppercase nav-size-normal nav-left\" role=\"tablist\"><li id=\"tab-golden-sound\" class=\"tab active has-icon\" role=\"presentation\"><a href=\"#tab_golden-sound\" role=\"tab\" aria-selected=\"true\" aria-controls=\"tab_golden-sound\"><span>Golden Sound<\/span><\/a><\/li>\n<li id=\"tab-ein-britischer-audiophiler\" class=\"tab has-icon\" role=\"presentation\"><a href=\"#tab_ein-britischer-audiophiler\" tabindex=\"-1\" role=\"tab\" aria-selected=\"false\" aria-controls=\"tab_ein-britischer-audiophiler\"><span>Ein britischer Audiophiler<\/span><\/a><\/li>\n<li id=\"tab-convincemeaudio\" class=\"tab has-icon\" role=\"presentation\"><a href=\"#tab_convincemeaudio\" tabindex=\"-1\" role=\"tab\" aria-selected=\"false\" aria-controls=\"tab_convincemeaudio\"><span>ConvinceMeAudio<\/span><\/a><\/li>\n<li id=\"tab-new-record-day\" class=\"tab has-icon\" role=\"presentation\"><a href=\"#tab_new-record-day\" tabindex=\"-1\" role=\"tab\" aria-selected=\"false\" aria-controls=\"tab_new-record-day\"><span>New Record Day<\/span><\/a><\/li>\n<li id=\"tab-@modac\" class=\"tab has-icon\" role=\"presentation\"><a href=\"#tab_@modac\" tabindex=\"-1\" role=\"tab\" aria-selected=\"false\" aria-controls=\"tab_@modac\"><span>@MODAC<\/span><\/a><\/li><\/ul><div class=\"tab-panels\"><div id=\"tab_golden-sound\" class=\"panel active entry-content\" role=\"tabpanel\" aria-labelledby=\"tab-golden-sound\"><\/span><\/p>\n<p style=\"text-align: center;\"><strong>GOLDEN SOUND REVIEW &#8211; PUNCHING UP!<\/strong><\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" title=\"YouTube-Videoplayer\" src=\"https:\/\/www.youtube.com\/embed\/hhf9GpGC55w\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<p style=\"text-align: center;\"><\/div>\n<div id=\"tab_ein-britischer-audiophiler\" class=\"panel entry-content\" role=\"tabpanel\" aria-labelledby=\"tab-ein-britischer-audiophiler\">\n<p style=\"text-align: center;\"><strong><em>&#8222;I check out the, recently launched, Holo Audio Spring 3 DAC. Does it live up to the hype of being one of the finest sounding DACs for under \u00a32,500?&#8220;<\/em><\/strong><\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" title=\"YouTube-Videoplayer\" src=\"https:\/\/www.youtube.com\/embed\/StcvsN05W6c\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<p style=\"text-align: center;\"><\/div>\n<div id=\"tab_convincemeaudio\" class=\"panel entry-content\" role=\"tabpanel\" aria-labelledby=\"tab-convincemeaudio\">\n<p style=\"text-align: center;\"><strong>&#8222;Holy Trinity Of a DAC &#8211; Welcome to the flagship end of the Spectrum of a sublime DAC&#8220;<\/strong><\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" title=\"YouTube-Videoplayer\" src=\"\/\/www.youtube.com\/embed\/MdNe2kE0OqI\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<p style=\"text-align: center;\"><\/div>\n<div id=\"tab_new-record-day\" class=\"panel entry-content\" role=\"tabpanel\" aria-labelledby=\"tab-new-record-day\">\n<p style=\"text-align: center;\"><strong>DAC Shootout! Holo May VS Spring 2 VS Spring 3!<\/strong><\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" title=\"YouTube-Videoplayer\" src=\"https:\/\/www.youtube.com\/embed\/XNUsHmdOscs\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<p style=\"text-align: center;\"><\/div>\n<div id=\"tab_@modac\" class=\"panel entry-content\" role=\"tabpanel\" aria-labelledby=\"tab-@modac\">\n<p style=\"text-align: center;\"><strong>You Need This Awesome DAC! Holo Audio Spring 3 KTE Review<\/strong><\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" title=\"YouTube-Videoplayer\" src=\"https:\/\/www.youtube.com\/embed\/NZ8jXGVviL0\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><\/div><\/div><\/div>\n<h2 style=\"text-align: center;\"><a id=\"READMORE\"><\/a><div class=\"message-box relative dark\" style=\"padding-top:15px;padding-bottom:15px;\"><div class=\"message-box-bg-image bg-fill fill\" ><\/div><div class=\"message-box-bg-overlay bg-fill fill\" ><\/div><div class=\"container relative\"><div class=\"inner last-reset\"> <a href=\"#top\">SPRING 3 DETAILS<\/a> <\/div><\/div><\/div><\/h2>\n<ul>\n<li>A new generation of linear compensation technology. A better solution to the resistance, accuracy errors caused by switching components and PCB, after compensations makes the equivalent accuracy reach 0.00005%.<\/li>\n<li>The new generation of de-glitch technology can provide a full range without increasing the noise floor or other adverse effects.<\/li>\n<li>Based on this new generation of technology, \u201c\u6cc93\u201d Spring3 (non preamp model) can provide a SINAD of &gt;112dB and a dynamic range of &gt;128dB, which represents the performance limit reached by today\u2019s most advanced R2R architecture DAC.<\/li>\n<li>Using the ultimate performance of PLL+FIFO technology, provides 0.1Hz Third-Order low-pass ability to inhibit jitter. It also uses a high-performance femtosecond VCXO as the PLL clock source. Under the premise of being almost immune to the front-end jitter, it can also lock up to 1.5us-2us @ 1KHz signal with high jitter. (It can lock up to 1.5us-2us @ 1kHz signal with high jitter on the premise of almost being immune front-end jitter).<\/li>\n<li>The USB interface uses proprietary firmware with ultra-low latency, a highly reliable data transmission, ideal USB eye pattern measurements that contributes to 2-4 times higher performance than official firmware.<\/li>\n<li>A single, independent HDMI-I2S input interface is provided, which has a four-way independent circuit, as opposed to standard LVDS chip, making I2S clock signals subject to lower interference and lower jitter. In addition, the I2S input can be configured with a specific pinout configuration, making it compatible with most of the HDMI-I2S digital devices on the market.<\/li>\n<li><strong><u>Optional (Factory installed only)<\/u><\/strong>: A fully balanced, fully discrete analog pre-amplifier. Provides 84 steps, each step is 1db of volume control.<\/li>\n<\/ul>\n<hr \/>\n<h3 class=\"uppercase\">Spring Models<\/h3>\n<p>Three versions of the Spring 2 DAC. Below are the three levels, and KTE being our no compromise model with all options:<\/p>\n<p><a href=\"https:\/\/magnahifi.com\/holo-audio-spring-3-dac-level-1-r2r-dsd1024\/\"><strong>SPRING GEN 3 LEVEL 1<\/strong><\/a><\/p>\n<p><em>(The base model is quite good all by itself and priced so competitively it\u2019s impossible to beat the performance\/price ratio.) This model has basic caps for the PSU, and does not include a CNC remote. It has standard Red label 5N Copper Otype Transformer, <strong>round wire<\/strong> type copper wiring. Considered the base model however packs a mean punch for price per dollar performance ratio. (no remote control in this version)<\/em><\/p>\n<p><a href=\"https:\/\/magnahifi.com\/holo-audio-spring-iii-dac-level-2-r2r-dsd1024\/\"><strong>SPRING GEN 3 LEVEL\u00a02<\/strong><\/a><\/p>\n<p><em>(With HoloAudio caps for ultimate power filtration and improved sound quality \u2013 Sound quality is refined and more relaxed, transparent and details are more refined and clear while remaining neutral. ) It has standard Red label 5N Copper Otype Transformer, <strong>round wire<\/strong> type copper wiring. This is a popular option for those who want a little more out of their dac with improvement of sound from the caps as well as this version will include the cnc machined aluminum remote control.<\/em><\/p>\n<p><a href=\"https:\/\/magnahifi.com\/holo-audio-spring-3-dac-kte-kitsune-r2r-dsd1024\/\"><strong>SPRING GEN 3 KTE (Kitsun\u00e9 Edition)<\/strong><\/a><\/p>\n<p><em>The highest grade components are used in our very popular KTE version products. This Spring3 KTE version will include an upgraded ultra premium transformer that is 100VA O-Type f<strong>lat wire<\/strong> type .The sound improvement is not subtle, it\u2019s a night and day improvement in our opinion and many of our customers agree. Kitsune has tuned this Spring 3 DAC for no compromise performance and targeted at the enthusiast audio lover. This transformer is our finest available model and makes the Spring\u2019s sound quite elegant and improved detail. more features mentioned below.<\/em><\/p>\n<div>The following is added to KTE Spring3:<\/div>\n<div>1. 100VA O-type (NOT toroid) Flat wire type as found in the flagship May Dac L2 and KTE.<\/div>\n<div>2. All copper wire is replaced with 1.5mm pure occ silver wire<\/div>\n<div>3. Hand Selected Dac module to have best measurements compared to averages.<\/div>\n<div>4. KTE Spring3 is ONLY level to have the enhanced USB module\u00a0 as found in our L2 and KTE May dac. Has titanis 2.0 circuit.<\/div>\n<div>5. Replaced IEC inlet connectors with pure silver\/rhodium plated faston connectors at the IEC inlet<\/div>\n<div>6. HoloAudio Red Nano fuse<\/div>\n<div>7. Holo Audio Caps(we have done extensive testing and these prove to provide the very best sound quality)<\/div>\n<div>8. Special Kitsune Tuned Edition branding inside and out (pure copper Kitsune fox emblem on top panel<\/div>\n<div><\/div>\n<div>\n<hr \/>\n<p><strong>\u201dOPTIONAL upgrade \u2013 Preamp Module\u201d<\/strong> \u2013 Fully discrete and balanced relay controlled volume control. Controls all the digital inputs volume with precision. This has trickle down technology from our popular flagship Preamp the Serene. Using 4 amp modules and hundreds of transistors.<\/p>\n<div>This DAC was carefully implemented with some of the finest components.<\/div>\n<\/div>\n<address>\u00a0<\/address>\n<hr \/>\n<h2 style=\"text-align: center;\"><a id=\"Specs\"><\/a><div class=\"message-box relative dark\" style=\"padding-top:15px;padding-bottom:15px;\"><div class=\"message-box-bg-image bg-fill fill\" ><\/div><div class=\"message-box-bg-overlay bg-fill fill\" ><\/div><div class=\"container relative\"><div class=\"inner last-reset\"><a href=\"#top\"> TECHNICAL SPECIFICATIONS<\/a> <\/div><\/div><\/div><\/h2>\n<h2 style=\"text-align: left;\"><\/h2>\n<table style=\"height: 635px;\" width=\"871\">\n<tbody>\n<tr style=\"height: 62px;\">\n<td style=\"height: 62px; width: 286.875px;\">\n<h3 style=\"text-align: left;\">Digital inputs<\/h3>\n<\/td>\n<td style=\"text-align: left; height: 62px; width: 570.525px;\"><\/td>\n<\/tr>\n<tr style=\"height: 18px;\">\n<td style=\"height: 15px; width: 286.875px;\">COAXIAL1, COAXIAL2, OPTICAL, AES<\/td>\n<td style=\"text-align: left; height: 15px; width: 570.525px;\">PCM 44.1-192K (24bit)<br \/>\nDSD 64X (DOP)<\/td>\n<\/tr>\n<tr style=\"height: 18px;\">\n<td style=\"height: 54px; width: 286.875px;\">USB<\/td>\n<td style=\"text-align: left; height: 54px; width: 570.525px;\">PCM 44.1K-1.536M (32bit)<br \/>\nDSD 64-512X DOP)<br \/>\nDSD 64-1024X (Native)<\/td>\n<\/tr>\n<tr style=\"height: 18px;\">\n<td style=\"height: 36px; width: 286.875px;\">I<sup>2<\/sup>S<\/td>\n<td style=\"height: 36px; width: 570.525px;\">PCM 44.1K-1.536M (32bit)<br \/>\nDSD 64-1024X<\/td>\n<\/tr>\n<tr style=\"height: 62px;\">\n<td style=\"height: 62px; width: 286.875px;\">\n<h3>Analog Outputs<\/h3>\n<\/td>\n<td style=\"height: 62px; width: 570.525px;\"><\/td>\n<\/tr>\n<tr style=\"height: 62px;\">\n<td style=\"width: 286.875px; height: 62px;\">Single Ended (RCA)<\/td>\n<td style=\"width: 570.525px; height: 62px;\">DAC Voltage Output 2.9Vrms<br \/>\n(Optional) Pre-amplifier Voltage Output 5.8Vrms<\/td>\n<\/tr>\n<tr style=\"height: 62px;\">\n<td style=\"width: 286.875px; height: 62px;\">Balanced (XLR)<\/td>\n<td style=\"width: 570.525px; height: 62px;\">DAC Voltage Output 5.8Vrms<br \/>\n(Optional) Pre-amplifier Voltage Output 11.6Vrms<\/td>\n<\/tr>\n<tr style=\"height: 62px;\">\n<td style=\"width: 286.875px; height: 62px;\">\n<h3>Digital Specifictions<\/h3>\n<\/td>\n<td style=\"width: 570.525px; height: 62px;\"><\/td>\n<\/tr>\n<tr style=\"height: 18px;\">\n<td style=\"height: 36px; width: 286.875px;\">PCM 48K NOS<\/td>\n<td style=\"height: 18px; width: 570.525px;\">THD+N 0.00032% @1K(-110dB)<br \/>\nDNR 127dB<\/td>\n<\/tr>\n<tr style=\"height: 18px;\">\n<td style=\"height: 36px; width: 286.875px;\">DSD 128X<\/td>\n<td style=\"height: 18px; width: 570.525px;\">THD+N 0.00025% @1K(-112dB)<br \/>\nDNR 115dB<\/td>\n<\/tr>\n<tr style=\"height: 94px;\">\n<td style=\"height: 94px; width: 286.875px;\">\n<h3>Physical Characteristics<\/h3>\n<\/td>\n<td style=\"height: 94px; width: 570.525px;\"><\/td>\n<\/tr>\n<tr style=\"height: 18px;\">\n<td style=\"height: 18px; width: 286.875px;\">Size (Chassis)<\/td>\n<td style=\"height: 18px; width: 570.525px;\">430x300x55mm (W x L x H, Dimensions do not include protruding parts)<\/td>\n<\/tr>\n<tr style=\"height: 18px;\">\n<td style=\"height: 18px; width: 286.875px;\">Weight<\/td>\n<td style=\"height: 18px; width: 570.525px;\">8.5kg<\/td>\n<\/tr>\n<tr style=\"height: 18px;\">\n<td style=\"height: 18px; width: 286.875px;\">Power Specifications<\/td>\n<td style=\"height: 18px; width: 570.525px;\">110-120VAC \/ 220-240VAC 50\/60Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"text-align: left;\"><\/h2>\n<hr \/>\n<h3>DSD is natively supported for the first time on this Discrete Resistor Ladder DAC<\/h3>\n<div>\n<p>HoloAudio is the world\u2019s first to support DSD natively on Resistor Ladder DAC, so far the only one. This is not the DSD converted to PCM before digital-analog converter, but directly by the discrete components of the DSD digital to analog converter. Supported currently on MAC (DOP)and Linux (DOP), and Windows\/PC (Direct Native and DOP). <em>Please note, the word \u2018R2R\u2019 is the name of a kind of architecture of resistor ladders. This architecture requires less resistors yet still is capable to deliver more than acceptable performance. Most DACs in the industry use this architecture. The DSD module of Spring3 does not use R2R architecture for the DSD, more specifically it uses a very specific architecture which is optimized to perform DSD to analog. So to be entirely accurate the DSD part of Spring is using resistor ladders, not R2R..<\/em><\/p>\n<h3>Spring3 DAC R2R structure and design + Input\/output Stage<\/h3>\n<p>Modern and popular delta-sigma type DAC differs from R2R within one clock analog value can recover a sampling point, and the delta-sigma is used to represent an analog signal after passing through oversampling and high-speed digital switching 0 and 1. In comparison, the conversion structure of R2R is most direct and pure, but delta-sigma is essentially a digital chip, high-speed digital signals 0 and 1 switch to the low-pass filter to process the analog signal and this process is prone to various problems, produce digital sound (digititus) and\u00a0also in the super-sampling process will inevitably cause some ringing and distortion. But DAC R2R structure requires high-precision resistor network\u00a0which the cost can be very expensive. And the\u00a0digital delta-sigma DAC chip in comparison is very low cost. Patented R2R technology.\u00a0This is the first discrete\u00a0DAC\u00a0that has Linear compensation and this allows for ultimate music reproduction accuracy. Dual R2R ladder network with advanced architecture for PCM, and Dual Resistor Ladder network with optimized architecture for DSD!<\/p>\n<p><em>I\/O stages:<\/em> There is an Op Amp used for input stage and discrete component used for the output stage. The discrete output stage is working in pure class A. \u00a0The output voltage is 2.9 Vrms for single ended output and 5.8 Vrms for balanced output (dsd playback is half these voltages). The single ended is RCA. Balanced is XLR. They both use the same output stage. It\u2019s BiPolar Junction Transistors, direct coupled. The big MKP capacitor you can see in the output stage is for the power supply, not for signal coupling. And the output impedance is 200 Ohm.\u00a0<b><br \/>\n<\/b><\/p>\n<p><span lang=\"EN-US\">A common question we get\u2026\u201d Why do you use an Op amp at the input of the DAC?\u201d \u00a0<\/span><\/p>\n<p>The input stage with an opamp is a good choice. It has a paired transistor input by the nature it is manufactured. But an opamp for the output stage is limited due to it\u2019s size and the thermal capability. Also, no one will offer an opamp with class A output as it\u2019s efficiency is so low. So an opamp used as input and discrete output combined together will have an advantage. It doesn\u2019t mean that all discrete is not good. Actually, if we need to achieve enough low distortion. It needs at least 30-40 transistors. Which not only will it be huge and waste of space but it will also be too costly. I mean, to beat the opamp\u2019s performance, a simple discrete architecture is not possible, although an all discrete design looks beautiful.<\/p>\n<h3>The true balanced circuit design<\/h3>\n<p>These two pictures can explain the true balanced design quite well. The bottom side has the same resistor ladders as top side.\u00a0The dac module is a pure 24bit discrete R2R design (PCM) and discrete Ladder Dac optimized architecture (DSD).<\/p>\n<h3>What are the Spring 3\u2019s sound characteristics?<\/h3>\n<div>\n<p>One of the strong points of the spring is the spatial sounds stage presentation. It\u2019s very wide and precise. It never sounds congested like many DACs. The high end is very detailed and never harsh sounding. It has the R2R goodness that many have come to know and love. R2R has almost a cult like following and this DAC will surely become a sought after DAC. \u00a0Everything comes effortlessly for this DAC. Bass is layered and textures, quite full and present without ever masking over the sweet mid tones that are produced. One special thing about the Spring is its amazing voltage regulation circuitry that better than 0.2uV output noise! This along with the O-core transformer helps regulate the purest power which translates to audio clarity and accurate reproduction. It must be heard to appreciate and come to love its sound.<\/p>\n<h3>Jeff Zhu comment on the Spring3<\/h3>\n<p>Spring3 PLL is nearly the same design as our flagship dac, the May. The main difference between Spring3 and May is that May uses our latest technology and cost is no object, therefore has better components. For Spring3, it uses the latest technology as May. But the main goal is to get high performance at reasonable cost, and I believe we absolutely achieved this goal. Although it\u2019s price is higher than Spring2. I think the performance\/cost ratio is higher than Spring2. It\u2019s not much behind May! The pre-amp module inside is a very decent way to control volume, really one of the best ways. I think the digital volume is terrible, especially for this level of DAC. So I never added digital volume control on Spring and May, only on Cyan which is our entry level product. Digital volume is very easy and has very low cost added, albeit compromised. The reason we don\u2019t use it is that \u2018free digital volume\u2019 will lead customer to use it and not realize it is not ideal for use with our higher end dacs. I don\u2019t want misguide the user to use our DAC is that way. I think they will be most pleased with our fully balanced, discrete analog volume control for a low optional upgrade price.<\/p>\n<\/div>\n<\/div>\n<h3>Jeff Zhu \u2013 HoloAudio Explains his patented R2R technology<\/h3>\n<p>There are ways to improve the performance, the segment+R2R is one way. Trimming is another way. There is an additional R2R ladder in Spring, it compensate the main R2R ladder. It works like trimming, but trimming is to change the resistor value. This additional R2R ladder are digital controlled and is to compensate the resistor tolerance. For example, the MSB of 16 bits should have the value of 32768, but due to tolerance, it represent 32700 in real world. Then that additional R2R ladder will compensate 68 into it. Then it became 32700+68=32768.<\/p>\n<p>Actually there are other ways to improve performance, I just told you two stories. There are more stories behind the design. It is really hard. I must count every via holes in layout, every PCB wire has it\u2019s impedance and must put attention on it. A via hole can be 50 m Ohm, it is 1\/20000 of 1 kilo-ohm, and you see, it covers 32768 which is the MSB of 16bits. Also the switches has self-impedance which is about several ohms to 30 ohms. If you find this issue. Maybe you will go crazy, it seems to be an impossible mission. But a good designer will overcome all these problems. It\u2019s our value at HOLO Audio.<\/p>\n<p>All the resistor tolerance, switch impedance, line impedance, via hole impedance, finally reflect as linearity. There is a chart that shows Spring\u2019s linearity, it\u2019s excellent. But I suggest you to look at THD performance. Bad linearity must result a bad THD performance. But good linearity doesn\u2019t mean there will be good THD performance. THD is dynamic performance, more critical than linearity which is a static performance.<\/p>\n<p>If you look at the THD performance, you will find Spring to maybe the best among those competitors. I\u2019m applying a patent which contribute a lot of that performance. But I can\u2019t tell you how. It\u2019s confidential now.<\/p>\n<hr \/>\n<h3>R2R LINEAR COMPENSATION<\/h3>\n<p>There\u2019s an additional R2R ladder in the Spring DAC, it compensates the main R2R ladder. It works like trimming, but trimming is to change the resistor value. This additional R2R ladder is digitally controlled and will accurately compensate the resistor tolerance. For example, the MSB of 16 bits should have the value of 32768, but due to tolerance, it represents 32700 in real world results. Then that additional R2R ladder will compensate 68 into it. Thus it now becomes 32700 + 68 = 32768. What this means is that it\u2019s likely the most precise Discrete DAC on the market with near flawless linearity, lowest THD and highest SNR of any NOS DAC. The sound is simply something you must experience to fully realize how special this DAC is. It\u2019s a patented technology exclusive to Holo Audio.<\/p>\n<div id=\"module-videogallery-397-particle\" class=\"g-particle\">\n<div class=\"r-video-gallery-block \">\n<div id=\"r-vg-554248210\" class=\"r-video-gallery\">\n<div class=\"g-grid\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1121987467 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n  margin-bottom: 0px;\n}\n<\/style>\n\t<\/section>\n\t\n","protected":false},"excerpt":{"rendered":"<p>Dieser neue DAC &#8222;Spring3&#8220; ist das Design, das seit 2016 sehr beliebt ist. Dies ist ein weiterer Meilenstein f\u00fcr Jeff Zhu von HoloAudio. Es ist ein vollst\u00e4ndig diskreter R2R-Audiodecoder und hat keinen handels\u00fcblichen DAC-Chip! Dies ist ein ma\u00dfgeschneidertes, ma\u00dfgeschneidertes Kern-DAC-Modul und ein wirklicher Durchbruch mit technologie f\u00fcr jeden DAC-Chip heute. Trickle Down-Technologie vom Flaggschiff May Dac. Der Spring3 ist hier, um neue H\u00f6hen, neue Dynamik und einfach ein volles Spektrum an Audio zu erreichen, um die akustischen Sinne zu erfreuen.  <\/p>\n<p>DSD wird von diesem diskreten R2R-DAC nativ unterst\u00fctzt. In der Tat sind dies zwei separate DACs, noe tut DSD und ein PCM. Komplett getrennt, um h\u00f6chste Ergebnisse zu erzielen. Holo Audio unterst\u00fctzt DSD nativ auf R2R DAC. Beeindruckende Technologie, die zu einer hervorragenden Klangqualit\u00e4t f\u00fchrt, profitiert von den wahren F\u00e4higkeiten von DSD. Dabei handelt es sich nicht um die DSD, die vor dem Digital-Analog-Wandler in PCM umgewandelt wurde, sondern direkt durch die diskreten Komponenten des DSD-Digital-Analog-Wandlers. Wird derzeit unter MAC (DOP) und Linux (DOP) sowie Windows\/PC (Direct Native und DOP) unterst\u00fctzt.<\/p>\n","protected":false},"featured_media":11343,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[279],"product_tag":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>HoloAudio - Spring 3 DAC Level 2 (R2R - DSD1024) &#8226; Magna Hifi<\/title>\n<meta name=\"description\" content=\"Spring 3 ist eine neue Generation von vollst\u00e4ndig diskreten Widerstandsnetzwerken (allgemein bekannt als R2R) DAC, die von Holo Audio produziert werden. 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