Hifiberry powers 2.1 DSP plate amplifier
Hifiberry powers 2.1 DSP plate amplifier
By Gerhard Kulzer / Website
I built a 2.1 stereo system with 2 KEF LS50 speakers and a self-built bass (LittleRoy HobbyHifi). The stands for the LS50 I built myself. Into the bass box I included a 3x500W plate amplifier PDASP2SA1 that includes a DSP and doesn’t need cooling. The RPI3 with hifiberry is directly attached to the amplifiers and feeds the DSP. The SP2SA1 can be hooked up through USB with REW software allowing for room equalisation and 2.1 crossover optimisation. The RPI runs mpd and can be controlled via mpd clients, UPnP and infrared remote control. The IR receiver works over the GPIO. We have about 5 clients in the house including android devices, iphone, ultrabooks and desktops (not Windows machine in the house). A self-built NAS supplies the music library over NFS network share. The system sounds absolutely fantastic!
Which parts where used for this project?
Raspberry 3 Hifiberry DAC+ PDASP2SA1 3x500W from www.frenexport.it based on Pascal class D module 2 x KEF LS50 Speakon connectors 4 x Wavecore SW178WA, plywood (LittleRoy monobass) IR receiver TSOP382
Anything else you like to tell us about your project?
I plan in the future to use the Hifiberry DAC+ pro board with asnchronous I2s clocks to interface with the DSP directly on an digital level.