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Self-developed adaptive clock system technology, built-in 4 independent ultra-low jitter audio crystal oscillators, equipped with a femtosecond-level local clock system for the USB part, the standard version of the crystal oscillator is AS-318B, and the high version is CCHD- 957. SDA-6 supports external clock input, among which USB supports 10M clock input, and other interfaces support WCK input. In USB mode, it also supports 50 and 75-ohm switchable input impedance.
High-performance digital-analog hybrid phase-locked loop, excellent clock synchronization recovery technology, can greatly filter the secondary PLL of external digital input jitter.
It adopts 4 channels of fully balanced and full DC discrete circuit output; among them, the high-end version adopts non-loop negative feedback output. It has a wealth of input and output interfaces, including standard USB2.0 input interface, SPDIF and BNC coaxial and AES balanced input, HDMI-I2S input interface, analog output including XLR balanced output and RCA single-ended output; all interfaces support DSD input.
Large-scale FPGA for digital audio signal processing, self-developed second-generation algorithm, original multi-input channel isolation technology, to ensure the purity of each input signal.
Built-in 40 watt custom O-type transformer, output 4 independent power supply windings, up to 20 groups of distributed voltage stabilized circuits; The DAC chip adopts the latest AK4499 released by AKM in 2019; DSD adopts the native direct solution mode. The DSD digital stream does not pass through the internal digital filter and works in the NOS mode, which is fully in line with the design concept of HQPlayer.
Sampling rate supported by each input interface:
PCM: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz, 352.8KHz, 384KHz
(USB and I2S support all sampling rates and S/PDIF supports up to 192KHz）
DSD: 2.8 MHz (DSD64)-DoP,native
5.6 MHz (DSD128)-DoP,native
11.2 MHz (DSD256)-DoP,native
22.5792 MHz (DSD512)-native
（USB and I2S support all DSD formats, S/PDIF, and AES/EBU support DSD64 DOP mode）
Bit width: Up to 32 bit over USB and I2S
Up to 24 bit over S/PDIF
1. The USB input socket is a standard USB-B type female socket, and the USB power supply range is 4.5V-5.1V.
2. The SPDIF interface inputs standard S/PDIF signals, the input impedance is 75 ohms, and the AES input impedance is 110 ohms.
3. The power input is 115V/230V AC, and a 40-watt customized transformer is used for power supply.
4. I2S input is the LVDS level in the form of the HDMI interface, compatible with most front-end equipment.
Output level (0dBFS):
PCM: RCA single-ended output is 2.25V RMS, XLR balanced output is 4.5V RMS
DSD: RCA single-ended output is 1.8V RMS, XLR balanced output is 3.6V RMS
Output impedance: 22 ohms (RCA single-ended) / 45 ohms (XLR balanced)
Frequency response: 20-20kHz +/-0.1dB
S/N ratio: 131dB (20-22kHz A weighting)
THD+N (1kHz, 0dBFS) 0.00012% (-118db) at fs=44.1Khz (PCM, 20Hz-22kHz A weighting))
Dynamic response (1kHz, -60dBFS) 131dB (20Hz-22kHz A weighting)
Left and right channel separation >130dB @1kHz
Linsoul Audio is the authorized distributor. All products are authentic and genuine.
We are located in china but send our products worldwide for free.
We provide 1 year warranty for the all products except the cables*.
We reply to all support inquiries within 3 working days.
If everything goes right our system will automatically generate your order and send you a confirmation email. If you don't receive the confirmation email please double-check that it wasn't automatically stored in your spam or promotions folder.
Most of the items you see are in stock and ready to be shipped after 3 working days. If you plan to order a custom (Design or Fit) product, a pre-order, or a made to order item processing times may change on item to item basis.
Standard shipping is offered free worldwide for orders under $199 USD (with some exceptions), but please consider that delivery times may vary considerably depending on your country, up to 90 Days.
All items over $200 include free express shipping (DHL or similar). If your order total is under $200 you can manually add Express Shipping during the checkout period for $15.00 USD
We are generally able to ship to most countries via DHL Express, and many countries via Standard Shipping. You may clarify with our team to see whether Standard Shipping is available to your country.
*Note: We can only do Standard Shipping for the UK, India and Russia. We can only do Express Shipping to Africa, Argentina, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few.
We have two shipping methods - Standard Shipping and Express Shipping.
Standard Shipping is free for most countries, while Express Shipping via DHL Express is 10-35USD depending on your country. If your order is over 200USD, DHL Express Shipping is free*.
*For some countries, DHL Express is only free for orders above $239USD. Large items such as headphones (e.g. HarmonicDyne Zeus, Gold Planar GL2000, and etc.) are exceptions as well.
Shipping fees exclude import taxes or processing fees that might be applicable for your country. Linsoul is not responsible for any form of such fees.
For in-stock products, your order will be shipped within 3 working days. You may check with our staff regarding the in-stock status of any products.
Customized items will take a longer time. Please contact our staff for more information.
On normal non-sale days, once your parcel has been shipped out:
*Note: Timings might be affected due to festive seasons or other unforeseen circumstances
Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.
Should you be unwilling to pay for the fees and reject the delivery of the parcel, you will still have to pay for the shipping cost. Linsoul will only refund the amount of your order after deducting the shipping cost incurred.
For faulty/missing items, please send an email to email@example.com to process warranty. In your email, please choose an appropriate Subject Title. Kindly include your Order Number, and state your issue clearly. Please also attach photographs/videos as “proof”, if any. Our team aims to review your email within 3 working days.
For other queries, the fastest way to contact us is via our website or Discord
Please kindly check the following guide first: CIEM Ordering Guide
After placing an order, you will receive the order confirmation email. After your order has been shipped out, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.
We collaborate with these courier companies:
Standard Shipping: 4PX, UBI, NinjaVan, and Yun Express
Express Shipping: DHL Express and SF Express