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Little Dot Mini-4 Combined Music Center

Posted: Jan 10th, '10, 10:43
by sword_yang
Littledot Mini-4 is a set of mini size music center. But we set every module same as the full-size system. Complete sound performance and portable size, this is the most excellent advantage of this product.

Mini-4 Music Center contains 4 devices:
  • 1. Stream Media Player (DP-4 )
    Base on Raspberry Pi 4B, DP-4 has a Quad Core 1.5Ghz 64bit ARM Cortex-A72 CPU. This powerful processor makes DP-4 readily processes all kinds HQ audio data. DP-4 has a AK4137 SRC module for PCM - DSD format conversion. The low jitter clock recovery circuit ensured clock working on a high stable condition during stream playing.DP-4 supports USB device like Flash Disk and portable hard-drive. Otherwise, DP-4 has powerful wireless function for Bluetooth, LAN, DLAN, Air-Play etc.
  • 2. Digital Decoder (DA-4)
    Decoder scheme is on AK4493 DAC, PCM support is up to 768KHz/32bit, and DSD up to 256Bit. This DAC chip is a new product belong to AKM VELVET SOUND series. By the OSRD(over sampling rate doubly) tech, AK4493 can substantially reduce interference noise support the player more clear sound performance.
  • 3. Headphone Amplifier (AM-4)
    AM-4 is designed with entire discrete symmetrical Class-A circuit without any molectron. This circuit has better Instantaneous response speed and lower crossover distortion.
  • 4. Linear Power Supply (PO-4)
    Even for a mini size music center, we added a linear power in the set. Compared to general switch power supply, linear power supply with high-power ring transformer can ensure a much stable driving power for the system.
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Accessories
  • RJ45 network cable(for I²S connect) x1
  • 3-pin power cable x1
  • Main power cable(Aviation plug) x1
  • Devices connect power cable x3
  • 3.5 to 3.5 resistance adaptor x1 (for low resistance headphones)
  • 3.5 to 6.35 adaptor x1