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Old 10th January 2003, 08:41 AM   #11
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Quote:
Originally posted by GRollins
The 11" will fill up to, let's say... 250Hz?
18" puts the baffle step -3dB at a nominal 253 Hz. An ideal place to put the XO.

dave
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Old 10th January 2003, 08:57 AM   #12
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The mids are 5", not 6". The lit give an 8kHz xover for the tweeter, but nothing on the xover points. The bass AX is 80Watts, not 40Watts. The front (baffle), top, and bottom are granite. The sides are made with piano building techniques (Layers of laminates vacuum formed).

I would expect the lit to be on the forum very soon.

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Old 10th January 2003, 02:17 PM   #13
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Hey Kent,

Is that the 11" Eaton driver?
We need more pics. Closeups.


Russ
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Old 10th January 2003, 02:23 PM   #14
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Regarding that 15"...after resting on it, I'll say that a Q-bump on the low end could do the job without further EQ.
Interesting about the bottom amp being 80W. That means it can run off the same power supply as the 20W amps for the other drivers. Roughly 20V rails, assuming that the drivers are nominal 8 ohms. Now we're down to one power supply with a 300VA transformer. Nice and tidy.
8kHz for the tweeter doesn't bother me, but it's a bit of a stretch for a 5" in terms of dispersion.

Grey
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Old 10th January 2003, 02:32 PM   #15
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Unfortunately Ravens need that high crossover. I'm running mine at 7kHz third order and from time to time the aluminum element just melts (but only when playing industrial music ).
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Old 10th January 2003, 03:59 PM   #16
BrianGT is offline BrianGT  United States
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Quote:
Originally posted by russbryant
Hey Kent,

Is that the 11" Eaton driver?
We need more pics. Closeups.

Looks like it could be the Eton 11-581

--
Brian
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File Type: jpg 11_581.jpg (24.7 KB, 1301 views)
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Old 10th January 2003, 04:01 PM   #17
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Peter,

The lit says:

"For best transient and phase response, the mid-bass and mid-range bandpass filters are single-pole types, while the bass driver sees a 2 pole low pass filter (?) at 22Hz and the ribbon tweeter is crossed with 2 poles at 8kHz."

Gray,

The plate amp is one single 4ft tall heat sink. Kent says that it gets too hot at the top and may have re-distribute the devices.

Russ,

I don't know if Kent want this out. He really didn't say it was a secret. All the cone drivers are PSL drivers. I will ask him about the 11" again today because I'm interested in that one myself.

File transfer over hotel phone lines are a real PITA, and not cheap. I will get some photos transfered, but the bulk will come when I get back home on Sunday.

Rodd Yamashita
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Old 10th January 2003, 04:59 PM   #18
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Considering Pass' taste and loudspeaker's look I'm almost sure that these are PHL drivers.
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Old 10th January 2003, 05:19 PM   #19
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Vuki,

You may very well be right. I may have misunderstood Kent. I verify that today.

Rodd Yamashita
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Old 10th January 2003, 05:35 PM   #20
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Default They don't look like PHL

PHL drivers don't have round frames and don't come in 11" sizes. Could be a custom PHL for Pass Labs though.

PSL is Phillips Sound Labs and if Kent said PSL then that's probably what they are. Still probably custom versions of thier commercial driver.

I'll keep looking around. So far I can't find any pics of PSL drivers.

I'll post a link in a few minutes if I find one.

Russ
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