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Willow Tree Audio (The United Kingdom)

68 Fornham Road
Bury St Edmunds
9i-92DE Media Player (Digital Output via USB Only)
An android based media player product with many funtions. It can play not only local music but also online, such as Aairplay and Tidal support.
9i-90SA Pro (“Lark” second Generation )DAC/headphone Amp/Pre Amp
. .9i-90SA Pro ("Lark" second Generation )DAC/headphone Amp/Pre Amp, It is a low-priced product and carries some high-level audio technology and practical functions. Although it is cheap but its audio performance is close to that of high end products. It is good choice for most Junior enthusiast.
DSDAC 1.0 (deluxe model)
. DSDAC 1.0 deluxe model is a new product which was developed on the basis of the standard model by optimizing the clock system and making major modifications to the circuit. It is different from the ordinary DAC. Its high-precision DSD frequency raising algorithm solves the playback problem of dsd64 perfectly.

. The synchronous direct clock technology enables the built-in femtosecond clock to be transmitted to the shift register directly without any process, so that the femtosecond performance can directly improve the analog signal quality. The clock blocking technology can isolates the clock of pre-device completely , so that the clock of the pre-device no longer becomes a factor affecting the sound quality.
DSDAC 1.0 (standard model / Super clock model)
. DSDAC1.0 is a high-performance audio DAC based on DSD theory. It is completely different from ordinary DAC because it has many original technologies. It does not use conventional chips for DA conversion but FPGA and discrete components for digital processing .

. DSDAC1.0 can increase the frequency of all input data including PCM or dsd64 to dsd1024. If the input data is higher than the dsd128, you can also output it directly without increasing. DSD frequency raising algorithm is a very complex mathematical process, DSDAC1.0 did a good job.

. One year after the standard model was launched,the super clock model was launched. Performance is futher improved
9i-AD"Black Gold Ultimate Model"
. .The 9i-AD series media player adopts the 88de3010 scheme of Marvell as the main control and has high-definition video function(2K). Because of QDEO technology and two high-end audio DSPs inside, its video quality is very good as well as audio quality. After we redesigned it, it can receive external clock. With excellent audio and video performance, 9i-ad has achieved very good market performance.
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