【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
[Enjoy high-resolution sound sources to the fullest] This unit supports playback of linear PCM44.1k to 384kHz/16 to 32bit and DSD2.8M to 11.2MHz. The DAC is equipped with the high-performance audio DAC IC "ES9018K2M" manufactured by ESS Technology, which has a reputation for sound quality. You can enjoy high-resolution sound sources and CDs in high quality.
[Upsampling/Format Conversion Function (SRC)] This unit has a built-in SRC (sampling rate converter) that allows you to upsample the input sound source data with a single button and enjoy the changes in the sound. You can also enjoy the changes in the sound by converting the PCM data input to this unit to DSD data, and converting DSD data to PCM data. (*There are some restrictions on the sampling rates and formats that can be selected. Please see the "SRC mode compatibility table" for details.) If you want to output the input data as it is, there is also a BYPASS mode that plays through without passing through SRC. You can select your preferred sampling rate and format for each song and enjoy creating the sound of your choice.
[Can also be used as a preamplifier] Equipped with one each of USB, COAXIAL, and OPTICAL digital inputs, it can be connected to various digital devices such as PCs, CD transports, and network audio servers. Each input can be easily switched using the selector switch on the front panel. You can use this unit as an audio component positioned like a preamp. Additionally, when connected to a power amplifier with a volume, it is equipped with a circuit that skips the volume of this unit. This is a special feature designed for ease of use, where you want to reduce as much as possible the volume and other circuits that lead to sound quality deterioration.
[Commitment to Headphone Amplifiers] As a headphone manufacturer, we do not allow compromise when it comes to headphone amplifiers. For the headphone amplifier of this unit, we selected the headphone amplifier IC in accordance with the development policy of this unit: ``Output as high quality as possible without altering the information contained in the sound source.'' You can enjoy the charm of the sound source directly and in high quality with headphones.
[Compatible with the new USB data transfer method "Bulk Pet*"] Generally, USB Audio data is transferred using the "Isochronous" method. This method processes a large amount of data in a short period of time and transfers it intermittently, which places a high processing load on the CPU on the host side and the CPU on the device side. High processing load also affects sound quality. The "Bulk Pet" method makes it possible to average the amount of data to be processed by reducing the amount of data to be transferred as much as possible and making the data transfer continuous. This is an innovative transfer method that reduces fluctuations in the processing load on the host and device CPUs and improves sound quality. SWD-DA15 supports "Bulk Pet" by installing the driver on your PC. *Bulk Pet is a registered trademark of Interface Co., Ltd.
SWD-DA20 has been remodeled and now available at a new, affordable price. High-performance D/A converter direct sales limited model now available! In digital audio, the D/A converter (Digital to Analog Converter) is an important component that affects the quality of the audio set. This unit "SWD-DA15" is a direct sales limited model that is a remodeled version of the SWD-DA20, which was developed as the core model of our desktop audio series, and is priced at an affordable price. Adopting ES9018K2M as DAC IC, it supports playback of most currently available high-resolution sound sources (linear PCM 44.1k to 384kHz/32bit, DSD 2.8M to 11.2MHz). We developed this product with a focus on the basic function of a D/A converter: ``converting input sound source data to analog and outputting it in the highest possible quality.'' This unit is also equipped with functions that allow the user to enjoy a variety of sound changes according to their preference. For example, the built-in sampling rate converter (SRC) upsamples the input sound source data.
It also has a function that allows you to play back files and convert each format in real time, such as PCM to DSD and DSD to PCM. Equipped with three digital input systems: USB, coaxial (COAXIAL), and optical (OPTICAL), it can be connected not only to a PC but also to a CD transport, network audio server, etc. It's packed with features that allow you to enjoy audio to the fullest in a compact housing that can be placed comfortably on your desktop. [Product specifications] Model number: SWD-DA15 Product name: High-performance USB D/A converter JAN: 4522425050874 Manufacturer standard price: 58,909 yen + consumption tax (64,800 yen including tax) Digital input: [Terminal] USB B type (USB), RCA pin jack (COAXIAL), square optical connector/TOS-Link (OPTICAL) [Signal standard] USB2.0 (USB), S/PDIF (COAXIAL, OPTICAL) [PCM sampling frequency] COAXIAL, OPTICAL = 44.1k/48k/88.2k/96k/176.4k/192kHz USB = 44.1k/48k/88.2k/96k/176.
4k/192k/352.8k/384k/705.6k/768kHz [Quantization bit number] COAXIAL, OPTICAL = 16/20/24bit USB = 16/24/32bit [DSD sampling frequency] 2.8224M/5.6448M/11.2896MHz (only USB input supported) Analog output: [Terminal] RCA pin jack (LINE) [Maximum output] FIXED +9.0dBm (2.2Vrms) At digital input full scale VARIABLE +9.0dBm (2.2Vrms) Digital input full scale, volume at maximum Headphone output: Terminal Φ6.3mm stereo standard jack Maximum output 60mW + 60mW (at 40Ω load) Power supply: DC12V (AC adapter) Body size: Approx. W146 x H40 x D165mm (excluding protrusions), approx. 0.7kg Accessories: AC adapter x 1, protective cushion x 4, warranty, instruction manual Country of origin: Japan