#16
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Thanks for the reply sdelsolray. Looking forward to hear what is Wayne's experience using the trinity with his PMB.
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In the end it is about who you love above yourself and what you have stood for and lived for that make the difference... |
#17
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I found this on the k & k website on their trinity pro preamp:-
"Trinity Pro Preamp Features The Trinity Pro Preamp allows for perfect balancing of a microphone and a pickup/transducer. Channel 2 is a designated mic channel with phase switch and supplies 9-volts to a lavalier type microphone. Each individual channel features volume, gain, +/- 20 dB bass, midrange, and treble filters. The EQ is accessible inside the box with trimpots. A convenient belt clip is included with this compact preamp, which weighs a mere ten ounces with the battery installed." http://kksound.com/products/trinitypropreamp.php From this, it looks like as long as your third party preamp supplies 9 volts DC to the microphone, it should be the same as the k & k preamp.
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In the end it is about who you love above yourself and what you have stood for and lived for that make the difference... |
#18
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I've gotten some strange responses from K&K when inquiring about using different preamps with the Trinity system. Usually some form of "why don't you use OUR preamps?". I think the only way we're going to settle this is to have someone brave enough give it a try on one of the "new" Trinity systems.
I was hoping to install a Trinity system in my Lowden to use with my Felix preamp, but that supplies 12v for the mic. Seems less likely that this would work compared to something like the Raven PMB if they have installed some kind of voltage protection. |
#19
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I'll be picking my guitar up this weekend and will check it out then and post back.
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Martin OM-1GT with K&K Trinity Recording King ROS-627 with K&K Trinity Epiphone EJ200CE with K&K Trinity Fender GDP100 Parlor Fishman Loudbox Mini |
#20
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Quote:
You need a DC voltage divider. Simple to build. Two resistors in series, size depends on how much current the mic draws. Let's simplify and say it is 1 A. Wire a 5 ohm and 4 ohm resistor in series. Connect the 9 VDC input across the series pair. Tap your output across the 5 ohm resistor. If the load is pulling 1 A, then the 5 ohm resistor is dropping 5 volts. Note you can use a 50 ohm and a 40 ohm, 500 ohm and 400 ohm, etc. so long as the ratio remains the same. But you do need to know how much current the mic draws, because you also need to size the resistors for power (1/8 watt, 1/4 W, etc.). This stuff is pretty easy for a guy with many years of training and experience as an electronics tech for the USN. But if this is not understandable to the reader I would not recommend trying to build and use your own power supply. Its impossible to put the smoke back into these components after you let it out. |
#21
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K & k has been very.fast in replying to my queries and so has John of Shoreline Music. It seems that the microphone's maximum voltage is 10v so the preamp that feeds it cannot exceed 10v.
__________________
In the end it is about who you love above yourself and what you have stood for and lived for that make the difference... |
#22
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Quote:
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#23
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Paging wayne8! Did you have a chance to test your newly installed Trinity system with your Raven PMB?
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#24
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Sorry! I had to go out of town. Will be back in a day or so with an update.
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Martin OM-1GT with K&K Trinity Recording King ROS-627 with K&K Trinity Epiphone EJ200CE with K&K Trinity Fender GDP100 Parlor Fishman Loudbox Mini |
#25
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Finally was able to try this thing out. Tried the PMB with the AC adapter first. Worked fine on the pickup channel, nothing but hiss on the mic channel. Tried batteries instead of AC adapter and both channels worked fine. Main reason I was hoping to use the PMB instead of my K&K preamp was so I could eliminate the batteries. Oh well.
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Martin OM-1GT with K&K Trinity Recording King ROS-627 with K&K Trinity Epiphone EJ200CE with K&K Trinity Fender GDP100 Parlor Fishman Loudbox Mini |
#26
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Quote:
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#27
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I'll try that. Thanks!
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Martin OM-1GT with K&K Trinity Recording King ROS-627 with K&K Trinity Epiphone EJ200CE with K&K Trinity Fender GDP100 Parlor Fishman Loudbox Mini |
#28
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I just checked the power supply. It says output 9VDCx2 300mA.
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Martin OM-1GT with K&K Trinity Recording King ROS-627 with K&K Trinity Epiphone EJ200CE with K&K Trinity Fender GDP100 Parlor Fishman Loudbox Mini |
#29
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Interesting. Sounds like the correct supply. I wonder if the Raven is generating 9v for the mic on battery power and more than 10v when operated via adapter?
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#30
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Well, according to the PMB manual, it says it puts out slightly more than 9 volts when using the adapter but doesn't say how much. I guess one 9 volt supplies the phantom and the other 9 volts supply power to the rest of the unit. The PMB uses two nine volt batteries if you don't use the adapter. In researching, trying to find a replacement, which I guess just isn't possible, I've read that it's fairly common for these adapters to be fried, something about unplugging them while the unit is on or something. Anyway, I'll either use it with batteries or continue to use the K&K belt pack preamp. Interesting that the K&K only uses one 9 volt battery and it, too, supplies phantom for the mic.
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Martin OM-1GT with K&K Trinity Recording King ROS-627 with K&K Trinity Epiphone EJ200CE with K&K Trinity Fender GDP100 Parlor Fishman Loudbox Mini |