Hi Bjue -
The actual measured difference is very small - the DNA-0.5 was rated at 100W into 8 ohms and would hit about 120W before clipping. The DNA-125 is rated at 125W into 8 and will hit at least 130W before clipping. The important difference (in terms of power) is that the DNA-125 has a slightly larger transformer which will deliver more current into low-impedance loads. Not that the DNA-0.5 is any slouch in this regard, but the DNA-125 is better.
With typical 4 - 8 ohm speakers in a typical room, both amps will do a fine job.
Best regards,
Steve McCormack
SMc Audio
The actual measured difference is very small - the DNA-0.5 was rated at 100W into 8 ohms and would hit about 120W before clipping. The DNA-125 is rated at 125W into 8 and will hit at least 130W before clipping. The important difference (in terms of power) is that the DNA-125 has a slightly larger transformer which will deliver more current into low-impedance loads. Not that the DNA-0.5 is any slouch in this regard, but the DNA-125 is better.
With typical 4 - 8 ohm speakers in a typical room, both amps will do a fine job.
Best regards,
Steve McCormack
SMc Audio