Originally Posted by ndskurfer
I guess I'll find out this week first hand. Another forum member has allowed me to audition some Sierra 1's and Sierra 2's in my home for the next few days - extremely generous! I asked about the Revel's because a pair of new in box F35's popped up in a local ad. I am buying them this afternoon at a large enough discount to justify at least giving them a try for a while... Before this, I have been using an old pair of Baby Advents that I have had since junior high along with a velodyne cht-10 sub that I found used locally. I found that I have been using the velodyne with both sets of Sierra's to help fill in the bottom end. The rest of the FR has been amazing! I am extremely curious to hear how the Revel's do full range, although I suspect that they will require the assistance of a sub as well, looking at the specs.
They will be in my home office for music only. I have my receiver set up to do some A/B listening and have been running FR as well as with sub. I'll probably only compare the Sierra 2's with the F35, that ribbon tweeter is amazing, and I'm suspecting that they will be superior to the F35's tweeter.
For movies, my media room down the hall is running JTR 8ht-lp's up front along with quad psa xs30's.
Should be a fun test
If you can, do the listening tests blind after carefully volume matching the speakers
. That last is critical, as the louder speaker almost always "wins" a listening test. It's also important to equalize room placement, as whichever speaker is closer to a wall or boundary will pick up a bass boost. Decades of research shows that sighted comparisons are inherently flawed, so it's best not to know which speaker is playing at any given time.
FWIW, the market has been flooded recently with ribbon tweeter designs. The reason? The patent on the design has run out. Like any other driver design, there are pros and cons. The research at Harman shows that flat and even on-axis
response - combined with flat and even off-axis
response - is the key to winning double blind listening tests. What the tweeter is made out of - or what design the manufacturer is using - is far less important in the overall scheme of things, as long as the design can meet that criteria.
Harman uses both compression drivers (JBL) and dome tweeters (Revel and JBL) in their designs. They have also experimented with other driver types, as Kevin Voecks discussed in this interview with HomeTheaterHiFi:
In fact, that's the only thing Dr. Harman said at the inception of the company - “Make the world's best loudspeakers.” No restrictions on the kind of technology. For example, if we had decided that electrostatics were best, even though that's a completely different kind of technology than you've seen in the Harman loudspeaker brands. There were absolutely no restrictions. We determined with double blind listening tests and engineering research that dynamic loudspeakers although refined, in numerous ways, make for the most accurate loudspeakers.
You can read the full interview here, if you like:
More in a bit (trying to be less wordy per post, lol).