CS43122 DAC Card for E7 only

The "CS43122 DAC Card for E7" is the fourth interchangeable DAC card for the E7 series, featuring the Cirrus Logic CS43122. The CS43122 is known as a large, top-tier DAC chip designed for high-end audio applications of its time. It employs an oversampling 5-bit delta-sigma modulator combined with a multi-element switched-capacitor DAC/low-pass filter controlled by DEM. Unlike typical 1-bit delta-sigma DACs, its multi-bit configuration effectively suppresses out-of-band noise and jitter sensitivity. Achieving this special chip, which demands stringent implementation conditions and ample space, in a portable device was made possible by LUXURY&PRECISION (hereinafter referred to as LP) Rakuhi's extremely advanced design capabilities, which met the complex implementation requirements of previous generations.

■ Musical Naturalness from a Multi-Bit Configuration, Distinct from Modern Mainstream
The CS43122 DAC is at the opposite end of the spectrum from modern DACs chosen for design efficiency and miniaturization, boasting a robust configuration with less design flexibility. However, in addition to its 5-bit delta-sigma modulator, the CS43122 employs Dynamic Element Matching to suppress distortion caused by variations in individual elements. The unique appeal of this chip lies in its ability to produce a smooth texture and natural sound connection that cannot be fully described by mere numerical performance. At LP Rakuhi, rather than prioritizing efficiency, they pursued musicality as an art form, meticulously extracting its full potential, not only for portable devices but also as an interchangeable module.

■ A Torrent of Emotions Revived by a Classic Sound that Defined an Era
The CS43122 card is meticulously tuned to excel not only in analytical precision but also in emphasizing musical flow, emotion, and overall harmony, making it ideal for a listening style that values these aspects. It utilizes DEM (Dynamic Element Matching) intelligent technology to deliver an overwhelming sound that offers excellent analytical capabilities while maintaining a natural listening experience. Its high dynamics and magnificent sound presentation bring a new sonic axis to the E7, distinct from existing AK4497, AD1955, and PCM1792A DAC cards, achieving a rich, analog feel and a gorgeous tonal expression with flair.

■ Uncompromising High Quality Even with Single-Ended Output
While conventional DAPs often have circuit structures where single-ended output performance is compromised, this module is designed to fully utilize the CS43122 output, with all circuits operating at their full potential without compromise. Even with the 3.5mm single-ended terminal, it achieves overwhelming playback in terms of information, localization, and dynamics.

■ EA4-Specific Line-Out Design
Continuing the E7's philosophy of reproducing classic sound tuning, a dedicated line-out circuit optimized for matching with LP Rakuhi's full-analog portable amplifier "EA4" is adopted. By switching with the normal LO, it achieves a high-dimensional balance of sound thickness, subtlety, and magnificent sound image reproduction.

■ Rare Global Limited Edition of 188 Units, Meeting Strict Quality Standards
DAC chips that have been out of production for many years cannot simply be adopted as core components just because they are in stock. For this product, only extremely high-quality CS43122 chips, capable of enduring modern high-end audio implementations, were carefully selected from a reliable, long-established supplier specializing in the long-term storage of older generation semiconductors.

*Accessories and some specifications may be subject to change without notice due to firmware updates.
*This product is for the DAC card only. It can be used with both the E7 4497 PREMIUM and E7 4497 STANDARD, updated to the latest FW.
[Please note that recognition may not be possible depending on the FW version]
(CS43122 DAC card recognition is supported by the latest firmware v1.1.7)