Momentum HD Pre-Amp

[Still-One]

Originally Posted by zettelsm

I’m with you, Jim. Though I only had four or five hours on my HD last night when I sat down to listen, I was immediately struck by how much more tonal density and solidity the HD brings to the music in comparison to running the Vivaldi short-stack straight into the S250 amp. Vivid is a word that comes to mind.

And, the HD sounds very dynamic. In fact Dan makes a comment in the foreward to the new owners manual to exercise some caution with the level control when starting out. Some of this might be higher overall gain than the original Momentum preamp, and indeed I found myself happily listening at lower level settings than typical before the upgrade, but I also found when I tried pushing the envelope a bit that l could listen at very high levels without any hardening or congestion occurring.

So far I’m very pleased with the HD upgrade. If it continues to improve with more hours I’ll be a very happy camper.

Steve Z

Steve
You make a good point about watching the volume with the HD version. After a couple of days I decided to choose the 2V output on the Vivaldi DAC rather than the 6V I used with the original unit and when I was running direct from from the DAC to the amps. I prefer seeing the volume level around 11 o'clock withe 2 volts rather than 8:30 with 6. Much better control.