Gibsonian's Cherry Pl 700 Ser I, soon to be a PLWO-1000

laatsch55

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Seems to be that way Jer. PM your address again would you and I'll, get those boxed up tonight. I'll e-mail the wiring instructions for the PCB.
 
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laatsch55 said:
Seems to be that way Jer. PM your address again would you and I'll, get those boxed up tonight. I'll e-mail the wiring instructions for the PCB.
Click to expand...
Sounds like a plan! Yeah, I need them watts man... (tapping vein like a junkie.. tap tap tap tap.. ) :cheers: Anything ya need in return, just yell!
 
laatsch55

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Kinda been dithering about which way to jump on this unit. I was thinking I was going a little overboard by moving the input for the AC and fuseholder to the left side of the chassis away from the low level inputs. BUT, there was something WAY different about the OERW of Suttons and this was one of the changes, so I'm sticking with it. Course Joe said it's always a good idea to have the AC as far away as possible from low signal inputs. That's all the confirmation I need. If these are racked and you blow an AC main fuse it sure is gonna be a PITA to change. Hence my hesitation to move it, but there have been bigger sacrifices for more modest returns, and we must stay true to the music.
 
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Scott,
Been thinkin on how to do the inputs with the options you wanted. Took a couple days of letting it ruminate here and there and a few e-mails to Joe, but I think I have it worked out. It will be more like the 700B than anything except you WILL be able to bypass the pots entirely without changing RCA jacks as this will only need one set and you wont have to change em. No need to cap couple Joe's board so it will be direct with no pots in circuit, or direct with pots in circuit.
Is that Ok with you??/
 
Gibsonian

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Lee,

I think that sounds fine. If it is easier, the amp could be permanently wired to bypass the pots, as I don't ever envision using/needing them, and don't care about what the next guy who has it might want in it cause I'll be dead!

Thanks,
Scott
 
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If the DC protects did not have on/off muting I would say that was a bad idea, but they do so I will bypass everything permanently then. And let the heirs whin e about it as we check out the PLWO one million in the great soundroom in the sky!!!
 
laatsch55

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Gibsonian said:
As you likely know the drivers begin to compress the waveform well before their max output. With the power you are throwing at these drivers, the compression that is occurring is part driver compression for sure. Any idea of the wattage or voltage you are throwing at them when you are maxing them out?
Click to expand...

No Scott, I had no idea compression started way before max output. Why?? The sluggish response of the voice coils??
I've seen peaks of 85 volts Scott, a lot of stuff in the 65-70 volt region.
 
Gibsonian

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Heat in the voice coil is the main culprit. If you start to approach the X max of the driver, the suspension will also begin to behave a little differently, contributing to the compression. Most all is simple heat though.

On your speakers, what is the rated power? I'm guessing you may be exceeding it.
 
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The K-Horns in totality are rated for 100 watts continuous. After the driver upgrades I have no idea Scott. the woofs were changed to Crites 1526S, the mid horn to a B&C DCM-50 2" throat driver in a Martelli "Tractix" horn and the B&C dc 10 tweet.
 
laatsch55

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Gibsonian said:
Heat in the voice coil is the main culprit. If you start to approach the X max of the driver, the suspension will also begin to behave a little differently, contributing to the compression. Most all is simple heat though.

On your speakers, what is the rated power? I'm guessing you may be exceeding it.
Click to expand...

I'm visualizing something more like "
congestion" , at certain power levels to reproduce the input the speaker can not act fast eough or far enough??
 
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