So this afternoon I demoed the AMS35i at my local dealer. A very comfortable demo room, acoustically treated, good coffee. And the dealer is a good guy. When I first mentioned the AMS35i to him a few months ago, he shook his head and sternly advised me that I had to demo a number of cheaper amps first. Good advice, which I've followed. And now, 20 amps later ...
The source was an Audio Research CD5; the speakers were the PMC Fact 8s and B&W 804s (more about those later).
First impressions: instruments seemed tonally true and immensely realistic. Piano (which is very hard for hi-fi to reproduce) was beautifully liquid, but precise too, with clear evidence of the hammer strokes and excellent bass extension. Really a joy to listen to. Strings also had a lovely realism.
The frequency range seems flat through the PMCs (less so through the B&Ws). The top end is wonderfully pure and exact, with no harshness at all. The bottom end is extraordinary: the sheer detail down there, even presenting the patterns of resonance in a kettle drum. The mid-range? Very sweet and true.
So far there wasn’t much between the AMS35i and the Devialet D-Premier, which I raved about on another thread recently. The Devialet is, in a word, perfect (and EDITED clever). It can’t really be faulted. But the AMS35i has, on the basis of my auditions, two significant advantages. Its dynamic range is very wide, and it shifts volume very smartly. It has bucket-loads of oomph, as much as the big Krell 550i I heard a couple of weeks ago. And second, it has a more 3-dimensional soundstage that the Devialet. The music extends further forward and further back.
Another characteristic it shares with other Class A amps (and the Devialet and Accuphase E350) is excellent detail retrieval at low volumes.
There’s one significant downside: volume adjustment with the remote control is a nightmare. It’s either too loud or too quiet. Argh!
Obviously the amp runs very hot. For the current production run the heatsinks have been improved; the fins are now nicely anodised, so there’s no risk of drawing blood on them.
Oh yes, the speakers. The PMCs were fine, actually very good. Nice and neutral up top, perhaps a bit light downstairs. Fortunately I used them first, because when I got on to the B&Ws, I had to switch off after 5 minutes. Horrible sibilance on vocals, nastily bright top end. Ugh.
Matt