Having received the new Raspberry Pi 2 Model B I was anxious to experience the results of the Volumio version1.55 distribution. Here are some of my quick observations and setup.
Modified the /boot/config.txt file.
gpu_mem=16
hdmi_drive=2
safe_mode_gpio=4
max_usb_current=1
dtoverlay=iqaudio-dacplus
dtparam=act_led_trigger=heartbeat
By default the USB ports are limited to 600mA.
With the new option, this is increased to 1200mA.
safe_mode_gpio=4
max_usb_current=1
Heartbeat pulse on the ACT LED
dtparam=act_led_trigger=heartbeatThe setup includes the Edimax EW-7811Un wifi dongle and a USB hard drive so increased USB current was required.
Faster Music Player Daemon Database Updating as compared to the Raspberry PI Model B+ is great.
With the IQAudio Pi-Dac+ we are now able to play DSD64.dff and DSD64.dsf files 352.8kHz with no dropouts. These are Direct Stream Digital formats. Realtime on-the-fly DSD to PCM conversion is required as the IQAudio Pi-Dac+ does not support native DSD playback. MPD understands the file formats dff and dsf. This is a significant upgrade for me as it all works flawlessly over the I2S serial bus.
So far the upgrade to the Raspberry Pi2 Model B is a positive experience.