Accuphase DP-560

The technical highlights of the DP-560 are its newly developed SA-CD drive and ultra-low THD and noise performance. These are inherited from our flagship SA-CD transport, the DP-950, and digital processor, the DC-950. The DP-560 displays the sampling frequency and the number of effective bits of all input signals on the front panel. The dimensions of the DP-560 are the same as those of the DP-550. It is slightly heavier than the DP-550 due to the reinforced power supply circuit and new SA-CD drive mechanism. The bridge cover of the SA-CD drive mechanism is larger and longer than that of the DP-550. This is highly effective in reducing noise caused by the motor drive and airflow from disc rotation. This cover consists of three layers: a molded base, an iron insulator, and an aluminum cover. There are countless air gaps between each material to absorb vibration. Furthermore, the laser pickup module is mounted with vibration absorbers. These are made of silicon selected from many types of silicon materials for this mechanism. Thanks to these comprehensive techniques, the total noise level you hear has been dramatically reduced. It is less than one-third that of the DP-550. In fact, you can hear nothing. The DP-560 features a systematic layout. Each circuit block is logically placed to keep the signal path as short as possible. The digital circuit is on the right side and the analog circuit is on the left side of the rear panel. The logic control board is on the right side of the SA-CD drive mechanism, while the reinforced power supply and power transformer are installed on the left side. Ultra-low noise is one of the main technical features of the DP-560. The previous model, the DP-550, has excellent noise performance; however, the DP-560 achieves an output noise voltage 20% lower than that of the DP-550. The DP-560 guarantees a signal-to-noise ratio of 119 dB, which means an output noise voltage of 2.8 µV. For the D/A converter section, Accuphase has updated the DAC chip to ESS Technology's 32-bit Hyperstream DAC ES9018S for the DP-560. The ES9018S contains 8 DACs, and the DP-560 uses 4 DACs connected in parallel per channel with Accuphase's unique MDS+ conversion system. A fully balanced structure is employed after the D/A converter section in the DP-560. In addition, an independent low-pass filter is installed for each audio output. As a result, the audio signals from all outputs are of high quality.

The DP-560 has four digital inputs: coaxial, optical, HS-LINK, and USB. The USB input accepts 384 kHz/32-bit PCM or 11.2896 MHz DSD. DSD data can be received via both DoP DSD over PCM and ASIO2.1. HS-LINK has been upgraded to Version 2. The original HS-LINK (Ver. 1) transmits and receives only 192 kHz/24-bit PCM or 2.8224 MHz DSD, but Ver. 2 can transmit and receive 384 kHz/32-bit PCM and 5.6648 MHz DSD. The DP-560 automatically recognizes both Ver. 1 and Ver. 2 transmissions.