The 3D soundstage is wide and deep and has a refreshing air that is natural. Background noise and editorializing is non-existent. Neutrality is the flavor, but not the type of neutrality one associates with sterility and flatness. Quite the contrary, the presentation is natural, tube-like. Like tubes it has excellent depth and air and like solid-state it has superb impact and bass control. Almost a hybrid of sorts in its abilty to merge what we like about tube and solid-state amplification. A great achievement indeed, but this amplifier adds spice to its hybrid-like achievement by its transparency and natural detail retrieval. Easily the best I have ever heard. My EA ZR-1600 is no slouch in detail and transparency, however, the Ref. 350A surpasses in its natural detailed expression. There are several reasons why this is so:
First, the EA ZR-1600 doesn't extend to the limits of notes like the Ref. 350A. The EA ZR-1600 has a clean natural air about it, but lacks that last bit of extension that makes everything more real. The listener can follow palpable notes as they extend and fade away.
Second, EA ZR-1600 doesn't offer a silent black background which isn't smeared by additions or deletions. The EA ZR-1600 isn't as neutral as the Ref. 350A from top to bottom. Much more information is provided by the Ref. 350A without distortion.
Third, the EA ZR-1600 lacks the width and depth of soundstage of the Ref. 350A. It also lacks the spatiality and strategic placement of performers in distinct spaces. The Ref. 350A illuminates a larger more three dismensional soundstage that is well-defined.
Finally, the EA ZR-1600 doesn't possess the effortless speed, delicacy, dynamics, and tight-fisted bass control like the Ref. 350A. The only area that the EA competes with the Ref. 350A is in declicate expression, however, that expression isn't as natural sounding as the Ref. 350A.
Everything about the Belles Reference 350A is larger and more true to life than the EA Carver ZR-1600. I hope one doesn't come away from this review thinking that the EA ZR-1600 isn't a great amplifier, because it truly is. It is just that compared to the Ref. 350A, its a class below.
How do you describe an amplfier that has a neutrally uncharacteristic sound that seems as true to the source as imaginable? Words like "natural", "real", "faithful", and "life-like" come to mind. These types of words get thrown around so much in reviews it hard to know what to believe. I have never been more confindent about using them in this review. Bottom line, hearing is believing. It is my humble opinion that the Belles Reference 350A is the finest example of an amplifier that moves us from the seats of our music rooms to front row seats at the actual performance. Bravo Dave Belles! You have lifted me higher!