Just got my 2235H's back from being reconed and I've always heard they need a certain amount of "break-in" time.
Any ideas how long that is? Also, does it require a test signal or is normal use fine?
TIA
This message comes from JBL Dog
Just got my 2235H's back from being reconed and I've always heard they need a certain amount of "break-in" time.
Any ideas how long that is? Also, does it require a test signal or is normal use fine?
TIA
This message comes from JBL Dog
I'm certain you'll get a "smarter" response from Giskard, but in the past, I believe he's advised something on the order of say, +48-hrs, continuous play, with normal source (i.e., music) and nominal/soft volume.
bo
"Indeed, not!!"
That was for these goofy super-duper capacitors they sell nowadays Bo
You can run those 2235H's for a few hours at 20 Hz to get them softened up. I think it's 7 volts or 10 volts in at 20 Hz but I can't remember which. I'd have to look it up. Oh, and that's out of the enclosure too. If you wait for them to break in normally you'll be waiting a long time.
How can I generate a 20hz signal? I don't have any test equipment or a signal generator, etc.Originally posted by Giskard
That was for these goofy super-duper capacitors they sell nowadays Bo
You can run those 2235H's for a few hours at 20 Hz to get them softened up. I think it's 7 volts or 10 volts in at 20 Hz but I can't remember which.
Can I, maybe, uh.... play some rap music laced with profanity for an hour or so and get the same result?
This message comes from JBL Dog
Last edited by JBL Dog; 11-06-2003 at 10:08 AM.
I haven't tried this, but give it a look: http://www.esser.u-net.com/ttg.htmOriginally posted by JBL Dog
How can I generate a 20hz signal? I don't have any test equipment or a signal generator, etc.
And, gimme a minute, I've got something that Rick Cobb had suggested for centering cones on resurrounds. Be right back...
bo
"Indeed, not!!"
OK, a few Links from the trustworthy Rick Cobb, aka Mr. Surround, that he reports provide good source material for test tones:
http://users.swing.be/hdepra/home/P22/E-sounds.html
and,
http://www.audioease.com/Pages/Free/MATTMain.html (Mac compatible)
I've not tried these, but Rick has never steered me wrong...
bo
"Indeed, not!!"
Hey, Giskard…
I was just thinking back to a warning you posted awhile ago. When you break-in the drivers, what do you mount them on so the vents aren’t flat on the bench?
Last edited by Daniel B; 11-06-2003 at 11:02 AM.
I have a super high tech pair of 2x4's that I sit them on while they break in.
Hey! That 20Hz test clip doesn't work! I played it over my computer speakers and it was just silence.....
I have used pink noise at a level of 1 watt output for a 24 hour minimum. I would place the speakers face to face and throw a blanket over them and let them go. . .This was recomended to my by Paridigm once when I bought some of their speakers. . .I will say it does loosen things up or so I thought at the time. . .
Hey! We all hope that this is a joke.Originally posted by JeffW
Hey! That 20Hz test clip doesn't work! I played it over my computer speakers and it was just silence.....
You once posted 20Hz for 4 hours with 10 Volt.Originally posted by Giskard
That was for these goofy super-duper capacitors they sell nowadays Bo
You can run those 2235H's for a few hours at 20 Hz to get them softened up. I think it's 7 volts or 10 volts in at 20 Hz but I can't remember which. I'd have to look it up. Oh, and that's out of the enclosure too. If you wait for them to break in normally you'll be waiting a long time.
Oh, and the driver should sit on the high tech pair of 2x4's for ventilation
You got it Guido!
Yes, a joke...I have my PC set up as a source for my entertainment center as well. I don't think my PC speakers have much frequency response at 20Hz... I could barely hear it if I turned it up pretty high.Originally posted by Guido
Hey! We all hope that this is a joke.
I guess my didn't get the point across...
Whoa... That's amazing! If a manufacturer, you could advertise they work to 20Hz (@ -120 dB)...Originally posted by JeffW
Hey! That 20Hz test clip doesn't work! I played it over my computer speakers and it was just silence.....
[Yea, your did work great - pretty hilarious. Just that I was sleeping through it all.]
bo
"Indeed, not!!"
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