MHDT Labs Havana Tube DAC Utilizes the legendary R-2R multi-bits Burr Brown PCM56P (16 bits) DAC chip. There is No differential phase shift in both channels, no digital filters, no Op-amps. More detailed yet natural and musical sounding. Tube buffered output, tube included is the GE5670. This is a DAC with non-oversampling structure. Output 2.6V, &lt; 800 ohms