MicroPlayer mkIII+ - Interactive and amplified audio player

Interface and Connectivity

• Status LED
• Infrared Sensor – Protocol: Sony SIRC, 12 bits, 38 kHz carrier
• SD Card Slot
• USB 2.0 “Full Speed” Host Connector (12 Mb/s), standard “mass storage” driver, Type-A
• 2 Configurable Buttons
• Volume Wheel for the amplified speaker output
• Line Level Unbalanced Stereo Audio Output on standard RCA connectors
• Headphone Stereo Audio Output on standard 3.5 mm jack connector (TRS)
• Class D Amplified Stereo Speaker Audio Output on 3.81 mm detachable screw terminals
• 4 Configurable Combined Optocoupled Input Contacts on 3.81 mm detachable screw terminal (typical debouncing time: 25 ms)
• 2 MOSFET Outputs (500 mA per output, max 20 V) on 3.81 mm detachable screw terminal
• RS-232 Serial Link on 3.81 mm detachable screw terminal (9600, 19200, or 38400 baud)
• 2 Power Supply Outputs distributed across the 3.81 mm detachable screw terminals
• External DC Power Connector – Plug: Ø 2.1 mm / 5.5 mm

Supported Audio File Formats

• MP3 (.mp3): MPEG-1/2 Audio Layer III, mono / stereo, 16 bits, 44.1 kHz, 32 kbps to 320 kbps, CBR (Constant Bit Rate) or VBR (Variable Bit Rate), with or without ID3v1/2 metadata¹
• Proprietary Obfuscated MP3 File Format (.mp3): to protect MP3 audio content²
• WAV (.wav): mono / stereo, LPCM 16 bits, 44.1 kHz, WAVE_FORMAT_PCM or WAVE_FORMAT_EXTENSIBLE¹ Some ID3v1 and ID3v2.4 end-of-file metadata may cause unwanted noise at the end of files.² Contact Waves System for more information regarding this feature.

Other Supported File Formats

• TXT (.txt): files for serial link (serial.txt) and configuration (config.txt) in plain text format (printable 7-bit ASCII characters only) with CR / LF, LF, or CR end-of-line characters.

Storage Media

• Supports FAT32 file system (read / write)
• Supports long file names limited to a maximum of 63 characters including the extension
• Accepted Storage Media Types:
  • SDSC Cards
  • SDHC Cards
  • USB flash drives
• Supports 1000 maximum root folders, each capable of containing up to 999 files

Audio Amplifiers

• Headphone Output
  • 2 × 85 mW – 32 Ω, THD+N = 0,1 %, 1 kHz
  • 2 × 110 mW – 32 Ω, THD+N = 10 %, 1 kHz
  • 2 × 200 mW – 8 Ω, THD+N = 0,1 %, 1 kHz
  • 2 × 325 mW – 8 Ω, THD+N = 10 %, 1 kHz
• Speaker Output
  • 2 × 8 W – 8 Ω, THD+N = 1 %, 1 kHz
  • 2 × 10 W – 8 Ω, THD+N = 10 %, 1 kHz
  • 2 × 15 W – 4 Ω, THD+N = 1 %, 1 kHz
  • 2 × 19 W – 4 Ω, THD+N = 10 %, 1 kHz

 

Power Supply

• Player Power Input:
  • Nominal Voltage: 12 V DC
• Supplied AC Adapter Input:
  • Voltage: 100V to 240 V 
  • Frequency: 50 Hz to 60 Hz
• The player is protected against reverse polarity.
• Current Consumption (under 12 V
• Typical consumption when reading from SD card, without using amplified outputs: 100 mA
• Recommended power supply for full device utilisation – output current: 3.45 A
• Standby mode: less than 15mA

Thermal Information

• Operating Ambient Temperature: 0 to +60°C
• Storage Temperature: -20 to +60°C

Dimensions

• Width: 140 mm – 1/3 of a 19 inch rack
• Height: 43 mm – 1 U
• Depth (with detachable screw terminals): 107 mm

Weight

• 240g (with detachable screw terminals)