Evolved to Serve Pro-Audio Astell and Kern has stayed on the course, offering the truest and most natural sound possible. The new AK380 offers the most authentic sound from any digital...
Evolved to Serve Pro-Audio Astell and Kern has stayed on the course, offering the truest and most natural sound possible. The new AK380 offers the most authentic sound from any digital music format with enhanced features that are sought-after by Pro-Audio. 32bit 384kHz Bit to Bit Playback, Native DSD (up to 5.6 MHz) Playback, Parametric EQ with 20-band 0.1dB, 200 Femto Second VCXO Reference Clock, Scalable Amp, DNLA-based AK Connect App, Metal Touch Sensor Home Button Every bit of the AK380 was designed for Pro-Audio in mind. The sound that Pro-Audio people have been looking for starts with the AK380. 32-bit 384kHz bit-to-bit Playback All of the AK380's circuit design including the digital-analog converter (DAC) are ready for 32-bit processing to handle 32-bit music natively. Other products have traditionally used sample rate converter (SRC) method down sampling for playback. However, the AK380 is capable of playing back 32-bit, 384 kHz original sound without any down sampling. The result is the AK380 plays up to 32-bit, 384 kHz, any 24-bit music files, or double layer DSD 5.6MHz natively, without conversion or compression. PEQ (Parametric EQ) A parametric equalizer (PEQ) was implemented in the AK380 to deliver detailed adjustment of the original sound, and an audio digital signal processor (DSP) was added to aid in this process. This frees up CPU cycles previously needed for calculating graphic equalizers (GEQ), allowing more detailed and accurate calculations via the dedicated DSP. The audio DSP expands the existing 10-band, +/-0.5 dB graphic equalizer (GEQ) to 20-band, +/-0.1 dB to more precisely adjust the frequency and gain (dB) as well as more accurately specifying the frequency range via Q value adjustments. What is Parametric Equalization (PEQ)? Parametric equalization refers to the ability to increase or decrease the volume within the Q value range. A Q value is a frequency range relative to a selected frequency. The frequency range decreases when the Q value increases and vice versa. What is Graphic Equalization (GEQ)? Graphic equalization divides the audible frequency register into several registers and increases or decreases the level of each register with a volume slider to adjust the respective frequency's characteristics. The switches of the volume slider are connected like a graph to visually determine the frequency characteristics, hence the name graphic equalizer. Equipped With a Femto Clock to Deliver True Original Sound Astell and Kern implemented a voltage- controlled crystal oscillator (VCXO) high-precision clock with a reference jitter value of 200 femto seconds. Femto clocks are commonly used in high-end audio systems, and the clock is measured in high-precision femtosecond units (one quadrillionth of a second). What is VCXO? A VCXO, or a voltage- controlled crystal oscillator, is a type of crystal oscillation device that creates oscillation frequencies. External environmental stimuli, which in this case mean voltage inputs, influence the frequency value. Adjustments to the voltage input tunes a precise frequency value. What is Jitter? Jitter refers to the undesired deviation in time that occurs in a periodic signal. In this case, jitter is the error that occurs in the reference clock required to perform the sa