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Holo Audio Spring 3 DAC KTE – L2 – L1 (R2R – DSD1024)
2.445,00 € – 4.040,00 €
The Holo Audio Spring 3 DAC epitomizes Japanese precision audio engineering with its discrete R2R architecture and advanced technologies. Featuring ultra-low jitter PLL+FIFO technology and a superior dynamic range, with support for DSD up to 1024 and multiple digital inputs this DAC delivers stunningly clear and detailed audio. Its spacious soundstage, precise imaging, and dynamic range will transport you to the heart of the music.
Enhanced with high-quality hand-selected components like pure OCC silver wiring and exclusive KTE modifications such as HoloAudio’s Red Nano Fuse, it offers unparalleled sound quality. With support for native DSD and an array of digital and analog interfaces, the Spring 3 DAC is a premier choice for audiophiles seeking extraordinary performance and craftsmanship.
Don’t just listen – feel the music with the Spring 3. Let the fox unleash it’s power and lead the way!
See the “Version Differences” tab to Understand the Differences between the models!!!
Description
Holo Audio Spring 3 DAC
This new DAC “Spring3” is the design that has been very popular since 2016. This is another milestone for HoloAudio’s own Jeff Zhu. It’s a full discrete R2R type of audio decoder and does not have off the shelf-DAC chip! This is a bespoke custom-designed core DAC module and truly a breakthrough with technology for any DAC chip today. Trickle down technology from the Flagship May Dac. The Spring3 is here to achieve new heights, new dynamics and simply a full spectrum of audio to please the aural senses.
Key Features
- 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%.
- The new generation of de-glitch technology can provide a full range without increasing the noise floor or other adverse effects.
- Based on this new generation of technology, “泉3” Spring3 (non preamp model) can provide a SINAD of >112dB and a dynamic range of >128dB, which represents the performance limit reached by today’s most advanced R2R architecture DAC.
- 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).
- 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.
- 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.
- Optional (Factory installed only): A fully balanced, fully discrete analog pre-amplifier. Provides 84 steps, each step is 1db of volume control.
This DAC was carefully implemented with some of the finest components.
The following are added to the KTE (Kitsune Edition) of Spring 3:
- 100VA O-type (NOT toroid) Flat wire type as found in the flagship May DAC L2 and KTE.
- All copper wire is replaced with 1.5mm pure OCC silver wire.
- Hand-selected DAC module to have the best measurements compared to averages.
- KTE Spring3 is the ONLY level to have the enhanced USB module as found in our L2 and KTE May DAC, featuring the Titanis 2.0 circuit.
- Replaced IEC inlet connectors with pure silver/rhodium plated faston connectors at the IEC inlet.
- HoloAudio Red Nano Fuse.
- Holo Audio Caps (extensively tested to provide the very best sound quality).
- Special Kitsune Tuned Edition branding inside and out (pure copper Kitsune fox emblem on top panel, similar to our extremely popular KTE SU2 product).
- KitsuneHiFi VIP service, English support, and manuals/software.
DSD is natively supported for the first time on this Discrete Resistor Ladder DAC
HoloAudio is the world’s 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).
Please note, the word ‘R2R’ 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..
What are the Spring 3’s sound characteristics?
One of the strong points of the spring is the spatial sounds stage presentation. It’s 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.
Everything 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.
Spring’s Input and Output Interface
- Digital input interface includes
- USB (ground isolation)
- RCA coaxial
- BNC coaxial
- AES
- optical fiber
- I2S (HDMI) – improved ultra high performance 4way custom circuit (NOT LVDS anymore)
- All digital input interface supports DSD (DOP mode).
- Analog Output interface: single-ended, balanced.
Spring 3 DAC R2R Structure and Design + Input/Output Stage
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 also in the super-sampling process will inevitably cause some ringing and distortion. But DAC R2R structure requires high-precision resistor network which the cost can be very expensive. And the digital delta-sigma DAC chip in comparison is very low cost. Patented R2R technology. This is the first discrete DAC that 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!
I/O stages: 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. The 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’s 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 Spring3 Output impedance is 27 Ohm – RCA and 54 Ohm – XLR.
A common question we get… “Why do you use an Op amp at the input of the DAC?”
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’s size and the thermal capability. Also, no one will offer an opamp with class A output as it’s efficiency is so low. So an opamp used as input and discrete output combined together will have an advantage. It doesn’t 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’s performance, a simple discrete architecture is not possible, although an all discrete design looks beautiful.
A Truly Balanced Circuit Design
These two pictures can explain the true balanced design quite well. The bottom side has the same resistor ladders as top side. The dac module is a pure 24bit discrete R2R design (PCM) and discrete Ladder Dac optimized architecture (DSD).
XLR is using all of the circuit and RCA is just using half of them. The balanced output has better performance (THD, noise) and also better common mode rejection rate. If you’re listening environment contains interference, either from AC power or from EMI/RF then you will find a full balanced system can really help significantly.
Info on Red Nano Fuse type used in KTE May Model
Single crystal nano fuse
Specification: 5X20mm @2A(220v) or 4A(110v)
Withstand voltage: 250V (T) slow speed
Features: This product is complicated in process, special materials can not be made, this fuse is 100% pure handmade!
Tip: Input in different directions, the tone is different. Can try different directions
This fuse structure is relatively complicated, it is handmade, so the cost is not cheap, the structure is crimped, the contacts are firm and reliable, plated 24K gold, non-chemical gold. The fuse is made of imported single crystal silver-copper alloy. After nano-processing, note that the fuse is directional after nano-processing. The inner filling of the quartz sand is filled with nano-graphite, and the graphite has ultra-high conductivity and high anti-interference characteristics. The sound is beautiful, soothing and strong in layering. This is the flagship product of high-end fuses so far.
Fill the fuse with 2 heads of quartz sand for good shock absorption and arc extinguishing. In the middle is graphene, which has the advantages of ultra-high conductivity and anti-interference. The fuse is a single crystal silver-copper alloy containing 10% precious metal, treated with nanographene, and stranded with a single crystal silver.
The fuse cap is stamped from 99.99% 4N copper, one end is plated with 24K gold and one end is plated with sterling silver. Increasing the conductivity and the speed of the power supply make the fuse and the socket highly accessible.
The fuse is firmly pressed by a large one and two small caps made of 4N copper. This process protects the fuse in the middle of the fuse. The fuse and the cap are in good contact and the contact is firm, which can prevent the microphone effect. Reduce the oscillation of current passing, making the sound quality more pure and the image more stable.
The inside is filled with two quartz sands, and the middle is filled with nano graphene. Graphite has super high conductivity, high anti-interference and other characteristics, and the sound is beautiful, soothing and strong. It has great benefits for sound quality and security, but it can only be handmade.
The ceramic tube has anti-resonance and eliminates the effect of the microphone sound.
The fuse is made of a single crystal silver-copper alloy, and a very fine single crystal silver wire is wound to correct the sound. After nano-treatment, it has excellent two-end extension, transient response, dynamic and musical sense.
Fuse Type for L1 and L2 May Model
Shurter Gold fuse type
2A SB 5x20mm (220v) and 4A SB 5x20mm (110V)
Specifications
Digital input |
|
COAXIAL1, COAXIAL2, OPTICAL, AES | PCM 44.1-192K (24bit) |
DSD 64X (DOP) | |
USB | PCM 44.1K-1.536M (32bit) |
DSD 64-512X (DOP) | |
DSD 64-1024X (Native) | |
I2S | PCM 44.1K-1.536M (32bit) |
DSD 64-1024X | |
Analog Output |
|
PCM 48K NOS | THD+N 0.00032% @1K(-110dB) |
DNR 127dB | |
DAC Voltage Output 2.9Vrms (RCA), 5.8Vrms (XLR)
Output Impedance RCA 27 Ohm/XLR 54 Ohm |
|
(Optional) Pre-amplifier Voltage Output 5.8Vrms (RCA), 11.6Vrms (XLR) | |
DSD 128X | THD+N 0.00025% @1K(-112dB) |
DNR 115dB | |
DAC Voltage Output 1.45Vrms (RCA), 2.9Vrms (XLR) | |
(Optional) Pre-amplifier Voltage Output 2.9Vrms (RCA), 5.8Vrms (XLR) | |
Physical Characteristics |
|
Size (Chassis) | 430x300x55mm (W x L x H, Dimensions do not include protruding parts) |
Weight | 8.5kg |
Videos
Version Differences
Kitsune HiFi provides 3 versions of the Spring 3 DAC. Below are the three levels, with the KTE being their Flagship model with all options:
The KTE (Kitsune Edition)
The highest grade components are used in our very popular KTE version products. The Spring 3 KTE version includes an upgraded ultra-premium transformer that is 100VA O-Type flat wire type. The sound improvement is not subtle; it’s a night and day enhancement in our opinion, and many customers agree. Kitsune has tuned this Spring 3 DAC for no-compromise performance, targeting the enthusiast audio lover. This transformer is our finest model, making the Spring’s sound quite elegant with improved detail. More features mentioned below.
The L2 (Level 2)
With HoloAudio caps for ultimate power filtration and improved sound quality – sound quality is refined and more relaxed. Transparency and detail are improved while remaining neutral. It features standard Red label 5N Copper Otype Transformer and round wire type copper wiring. This popular option provides a noticeable improvement in sound quality and includes a CNC machined aluminum remote control.
The L1 (Level 1)
The base model is quite good all by itself and priced so competitively it’s impossible to beat the performance/price ratio. This model has basic caps for the PSU and does not include a CNC remote. It features standard Red label 5N Copper Otype Transformer and round wire type copper wiring. Considered the base model, it still packs a mean punch for price per dollar performance ratio. (No remote control in this version)
List Style Comparison
KTE Spring Version 3
- Top Tier Model with all the options
- Hand-selected DAC modules
- KTE exclusive HoloAudio Caps
- Copper KTE “fox” logo emblem on top of the DAC
- Enhanced USB Module w/Titanis 2.0 circuit
- 4N Silver 1.5mm wire at IEC inlet
- HoloAudio Red Nano Fuse
- CNC remote control with Copper KTE “fox” logo emblem
- Silver wiring
- Many more mods/improvements
- Includes USB cable and power cable
Spring Version 3 L2 (Level 2)
- Moderate spec’d version
- Includes HoloAudio Caps
- Standard USB Module
- Copper Roundwire Otype transformer
- Schurter Gold Fuse
- CNC remote control
- Includes USB cable and power cable
Spring Version 3 L1 (Level 1)
- Base Model
- Standard USB Module
- Copper Roundwire Otype transformer
- Schurter fuse
- No remote control
- Includes USB cable and power cable
Differences in Table Format
Feature | KTE Spring Version 3 | Spring Version 3 L2 (Level 2) | Spring Version 3 L1 (Level 1) |
---|---|---|---|
Model Tier | Top Tier | Moderate Spec’d | Base Model |
Copper KTE “fox” Logo Emblem on top of DAC | Yes | No | No |
DAC Modules | Hand-selected | Standard | Standard |
KTE Exclusive HoloAudio Caps | Yes | Yes | No |
USB Module | Enhanced w/Titanis 2.0 | Standard | Standard |
Transformer | Flatwire Otype | Copper Roundwire Otype | Copper Roundwire Otype |
Wiring | 4N Silver 1.5mm | Copper | Copper |
Fuse | HoloAudio Red Nano Fuse | Schurter Gold Fuse | Schurter Fuse |
Additional Mods/Improvements | Many | None | None |
Remote Control | Included | Included | Not Included |
USB Cable | Included | Included | Included |
Power Cable | Included | Included | Included |
The following are added to the KTE (Kitsune Edition) of Spring 3:
- 100VA O-type (NOT toroid) Flat wire type as found in the flagship May DAC L2 and KTE.
- All copper wire is replaced with 1.5mm pure OCC silver wire.
- Hand-selected DAC module to have the best measurements compared to averages.
- KTE Spring3 is the ONLY level to have the enhanced USB module as found in our L2 and KTE May DAC, featuring the Titanis 2.0 circuit.
- Replaced IEC inlet connectors with pure silver/rhodium plated faston connectors at the IEC inlet.
- HoloAudio Red Nano Fuse.
- Holo Audio Caps (extensively tested to provide the very best sound quality).
- Special Kitsune Tuned Edition branding inside and out (pure copper Kitsune fox emblem on top panel, similar to our extremely popular KTE SU2 product).
- KitsuneHiFi VIP service, English support, and manuals/software.
Optional Pre-Amplifier Module for All the Models
This is an optional factory installed only addition. It is a 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. Provides 84 steps, each step is 1db of volume control.
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