The RAAL teardrop does 109dB/1w/1m unassisted. The owner of these has SA planars too but doesn't use them any more.
Romy the Cat http://www.goodsoundclub.com/Forums/...spx?ForumID=22
He's a bizzare character with very esoteric needs. His
application for his tweeters is not typical.
Romy's application is more like high pass 10khz. He doesn't like
tweeters operating at a low crossover point
and he wants the midrange driver to do all the work if
possible, but the midrange driver he uses is limited,
therefore he was seeking a 'super tweeter' for assistance.
He bought different tweeters for evaluation and in the end
he had the Raal guy custom make a tweeter for him to
satisfy that unique desire. The RAAL teardrop seems
optimized for that specific mode of operation. I get the feeling that I'd
break that tweeter playing my Slayer music
The SA is flat down to 1600hz not to mention that it's
not even a ribbon tweeter, it's a planar. No thanks to
manufacturers who spread bad information, then users
start to spread bad information too, but many planar type
drivers are labeled as ribbon drivers when it's a different
The big bonus on planars is that they are much more
robust drivers that can take abuse.
*I have tortured my $30 cheap Dayton planars and they don't blow up.
*I have tortured my SA, won't blow up.
On the other hand, people using true ribbon have reported
blown ribbon elements by doing very little to cause damage.
Even the bigger NeoPro5i [$300] got damaged when the guy was
doing a simple driver test.
But playing music, RAAL are virtually indestructible. You'll hurt your hearing with distortion and SPL before you break the element. Remember I just posted a graph showing 64w pumped into them and they're still less the 2% distortion at high SPL. They can handle short term peaks of 200w and still not break. That's why you pay $1000 a pair for these driver.
Raal is unique as it's hand crafted, people will pay the piper
to get quality and performance.
The SA is an old design, probably 20 years old. But considering that the
overal tweeter market has been stale forever, it's easy for this driver to
stay in elite status, plus it's 13 ohms which makes it line array friendly and
tube geeks [not me] might like the higher impedance. What I really like about the planar concept
is the transformerless design. I think it's a nice bonus to remove 'stuff' from the signal
I hate the SA mechanical design, it's now obsolete and a PITA.
If it wasn't for this, I might have a function line array by now
They can handle short term peaks of 200w and still not break.
The Raal is interesting but I wonder what the breaking point is? The SA is ancient,
yet rated for 1000 watt peak (200mS).
The PLX3402 amp was tested at 5.7kw, 50mS burst @ 20khz @ 4 ohms bridged.
I can easily connect the SA to this amplifier and hit clipping with no issues
[the 13 ohm design helps with this]
Very few people in DIY home audio
will buy the
exotic tweeters, due to cost. I can count on 1/2 of one
hand on SA users and perhaps the same for Raal users
that I have seen in forums. I'm being generous when
I say 1/2 of one hand.
These threads of detailed and complex information regarding these unique drivers is moot,
who's gonna buy a pair?