Revel Salon loudspeaker Measurements 3

Vertically, the Revel's tweeter is a very high 47" from the floor, which at first worried me: Was I doing the right thing by measuring the response on the tweeter axis? (In the three-dimensional puzzle you have to solve when doing a set of speaker measurements, it helps to choose an easily repeatable axis for the microphone. In this respect, the tweeter is the best choice.) But as fig.7 reveals, the Salon's balance hardly changes over a wide window, thanks to its use of high-order crossover filters. As long as the listener's ears are between 36" and 50" from the floor, he or she will hear what the speaker is capable of doing.

Fig.7 Revel Salon, vertical response family at 50", from back to front: responses 15 degrees-5 degrees above HF axis; reference response; responses 5 degrees-15 degrees below HF axis.

However, the high-order crossover means that the Salon cannot be time-coherent, as shown by its step response on the tweeter axis (fig.8). The tweeter output arrives first at the microphone, followed by the outputs of the midrange unit, then the upper woofer, then the three lower woofers. It is arguable whether time coherence is necessary or not. Certainly, LG's very positive reaction to the Revel's resolution of detail and its imaging accuracy was not negatively affected by the speaker's time-domain behavior.

Fig.8 Revel Salon, step response on tweeter axis at 50" (5ms time window, 30kHz bandwidth).

The Salon's waterfall plot (fig.9) was not as clean as I had expected. I suspect that some of the HF hash present in the floor of this graph is due to early reflections of the tweeter's output from the tops of the speaker's side cheeks. There is a hint of delayed energy just below the on-axis notch in the presence region, but this is probably too subtle to introduce any coloration.

Fig.9 Revel Salon, cumulative spectral-decay plot at 50" (0.15ms risetime).

Another finely engineered loudspeaker design from Kevin Voecks and his team.—John Atkinson

COMMENTS
Ornello's picture

These abominations are some of the worst speakers i have ever heard. That they are sold, let alone that the 'manufacturer' asks $15,000 per pair for theses abominations, is an insult to the human race.

makrisd's picture

Are you experiencing hearing problems? Probably the best speakers in the world!

Ornello's picture

These abominations sound like crap. My hearing is exceptional.

Christopher's picture

@Ornello :
You must not be familiar with Harmon Audio Group's testing facilities and procedures, and, you also must not have heard these speakers working properly. Either you heard some bad quality clones, or there was something terribly wrong with some other piece of equipment in the chain, or, very bad source material.

Because not only do these speakers measure exceptionally well from an entirely objective perspective, they also have EXCELLENT sound quality both from my perspective as a person who listened to them while working for a COMPETITOR -and- from the perspective of a panel of expert trained listeners working at the parent company.

Even if these speakers did not suit your personal preference [for non-neutral sound], I don't believe you honestly could have listened to them and come away with an opinion that the were not at least "generally excellent"!

In 2003 I went to all the major high end audio boutiques in Manhattan and auditioned several of their finest (and some more modest) speakers at each store. The Madrigal Revel Salon Ultimas stood out as clearly superior to every other pair we heard over that period of a couple days that we spend listening to the best the competition had to offer. Every other pair had at least some minor unpleasant quality to their sound, these were the only ones where nothing stood out as an obvious imperfection to their ability to accurately and dynamically reproduce recorded music.

makrisd's picture

When and where did you hear these? What is your favourite speaker system?

Ornello's picture

I own Yamaha NS-1000M speakers. Prior to that I owned Rogers Studio 1s. Either of these trounce the Revels.