- Written by Jared Rachwalski
- Published on 20 November 2008
I wired the Operetta into the Front Left / Right outputs of a Rotel RSP-1069 surround processor, and then on to my Raw Acoustics OB2x Open baffle speakers. Source components included my HTPC playing lossless FLAC files via HDMI, an Oppo 981-HD for SACD, and an Onix XCD88 for CD and HDCD playback. The amplifier was given plenty of break-in time before I did any serious listening tests. For comparison, I used a Rotel RMB-1085 Class D amplifier rated at 100 watts x 5.
In these initial tests, I was very pleased with the sound. There was no lack of headroom, so the amp never broke up at high volumes. Music was very clean and slightly more dynamic in the high frequencies compared to the Rotel Class D.
Fan noise was objectionably high, but this was the only complaint I had.
The Operetta 2300a is a powerful, clean sounding amp, when the fan is not running, that is. Interesting design and use of Class A through most of the operating range provide a very nice warm sound that should work well with most speakers and electronics. I am curious as to what the new version will sound like, and will be keeping an eye on their future products. If the initial listening tests are any indication, this could be a serious contender.