Has anyone compared these two products? They both use the TI 5756 chip and don’t use a DAC. They feed the bit stream from the Rpi IS2 bus to an onboard class D amp. IQuadIO claim higher quality coils over the HiFiBerry product and also supports 192kbps encodes.
The IQuardIO product claims 35 watts per channel if you use a 19v DC power supply where the HiFiBerry product is 25 watts max claim with 18v power supply. The DigiAmp+ has hardware muting and volume control pins also. They also have a output gain control delector based upon which pins you select, although higher gain increases THD.
All input is welcome. Ideally someone has done a. comparison of both products. I have used several Amp+ boards and am very pleased with them. However if the DigiAmp+ has higher wattage (using 19v power supply) and similar or lower THD I may switch to their product for future builds.