Racking Langevin Am16

fraka2000 · 9th April 2004, 03:33 AM

I just buy 2 Langevin Am-16
I have no information at all
I`m looking for pinout infos,which kind and where should i buy the power supply,how to reslove the famous *too much input issue*
Everything!!
Help!!!

MJGreene Audio · 9th April 2004, 05:58 AM

Check out this web site.

http://www.geocities.com/ciminosound...vin-am-16.html

It has the brochure and the schematic. I don't remember if the schematic covers the jumpers that you need to do on the module. If not then email me and I wll see if I can find my sheet that has all the jumpers and pin-outs on it. Also do a google search for Langevin AM-16 and you may find more info. I have 4 of them and they are great. Very sweet. I would suggest a Power One 24Volt supply. I think you can order them from either www.newark.com or www.mouser.com Find the one that has a fair amount of amperage but is only 24 volts dc. The only other problem you are going to have is that they are fixed gain. Meaning they are wide open all the time. I use them on drums all the time and would first suggest that you wire a 10 or 20 DB pad into your unit even before you hit the pre. Kick and snare will send this thing into overload. Then the hard part. You need to wire in an attenuator on the output so that you have fine control to tape. I would use a Daven balanced attenuator (Used on Ebay. Not cheap but very good) Or you build a step attenuator with switches and resistors. More complicated but also works great. Check out http://www.rollmusic.com/projects/3125.shtml to get some great ideas or order their kit. With some modifications could be used with the Langevin. Don't forget to wire in some phase and possibly a phantom power switch. I am going off memory from what I did with mine about 5 years ago but feel free to ask me any questions.
Keep in mind once you get these wired up that they only have 45 db of gain. It is great sounding gain, but it sometimes won't be quite enough for some vocals or instruments. I have had good luck with adding an extra 10db of gain with a good compressor.
Good luck and you are going to love them,
Michael Greene

MJGreene Audio · 9th April 2004, 06:12 AM

Also I forgot to mention. If your not as in to the DIY route. Then I would highly recommend JLM audio www.jlmaudio.com as a great alternative. They make a great package and also to a transistor mod to give you 50 db of gain, plus they go thru everything in the modules except the transformers and bring it up to spec if it is out. Joe is a great guy and very very helpful to talk with. There racks are very reasonable and ultra pro.

Michael Greene

fraka2000 · 9th April 2004, 12:41 PM

Thanks a lot!!
Now it give good me really good place to start!!
It will be a little bit more complicated than i taught,but i think it worth the effort!!
thanks!!

fraka2000 · 15th April 2004, 03:59 PM

**** and would first suggest that you wire a 10 or 20 DB pad into your unit even before you hit the pre.***

Would you wire a 10db or a 20 db pad?
And how do i wire a pad? Do you have schematics or i can buy one already done and just solder it

Thanks

MJGreene Audio · 15th April 2004, 05:09 PM

I believe that I wired a 10 db pad into mine. It seems like it is more than enough even for drums. I wired mine to a switch on the front panel and I am sorry but I don't remember the values. I have this link that tells you a couple of ways to wire a pad and I would go with that. I think the Sure in line pads are great. Kind of inexpensive and very transparent. If you went that route the only thing you would sacrifice is not being able to control it from the front panel.

http://www.ethanwiner.com/gadgets.html

Check it out. I seem to remember somebody gave me the values and I don't recall what they were. Sorry. You might check out that Roll music site I think I gave you, they have a great set up for power, phase, and pad that looks very very cool. Much better than what I have. Plus their power supply looks better than mine. I have been thinking about re-racking mine better than I did before now that I have more knowledge of the units and racking gear.

Good luck and feel free to ask any questions.
Michael Greene

fatty · 16th April 2004, 01:01 AM

http://www2.yamaha.co.jp/manual/engl...a&lang=english

type in pm1000 in the model number box. near the end of the document you'll find a table with resistor values for pads from as low as 1db to as high as 40db or so. there's also a schematic and a photo of a "H" pad. very easy to wire onto a dpdt switch too.

MJGreene Audio · 16th April 2004, 04:34 AM

Thanks so much for that. Couldn't have asked for a more concise description of values and diagrams. I will keep that PDF in my file.

Thanks again,
Michael Greene

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9th April 2004, 03:33 AM	#1
fraka2000 Gear nut Join Date: Apr 2004 Location: Montréal Posts: 81	Racking Langevin Am16 I just buy 2 Langevin Am-16 I have no information at all I`m looking for pinout infos,which kind and where should i buy the power supply,how to reslove the famous too much input issue Everything!! Help!!!

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9th April 2004, 05:58 AM	#2
MJGreene Audio Lives for gear Join Date: Mar 2004 Location: The Land Behind The Zion Curtain Posts: 1,031	Check out this web site. http://www.geocities.com/ciminosound...vin-am-16.html It has the brochure and the schematic. I don't remember if the schematic covers the jumpers that you need to do on the module. If not then email me and I wll see if I can find my sheet that has all the jumpers and pin-outs on it. Also do a google search for Langevin AM-16 and you may find more info. I have 4 of them and they are great. Very sweet. I would suggest a Power One 24Volt supply. I think you can order them from either www.newark.com or www.mouser.com Find the one that has a fair amount of amperage but is only 24 volts dc. The only other problem you are going to have is that they are fixed gain. Meaning they are wide open all the time. I use them on drums all the time and would first suggest that you wire a 10 or 20 DB pad into your unit even before you hit the pre. Kick and snare will send this thing into overload. Then the hard part. You need to wire in an attenuator on the output so that you have fine control to tape. I would use a Daven balanced attenuator (Used on Ebay. Not cheap but very good) Or you build a step attenuator with switches and resistors. More complicated but also works great. Check out http://www.rollmusic.com/projects/3125.shtml to get some great ideas or order their kit. With some modifications could be used with the Langevin. Don't forget to wire in some phase and possibly a phantom power switch. I am going off memory from what I did with mine about 5 years ago but feel free to ask me any questions. Keep in mind once you get these wired up that they only have 45 db of gain. It is great sounding gain, but it sometimes won't be quite enough for some vocals or instruments. I have had good luck with adding an extra 10db of gain with a good compressor. Good luck and you are going to love them, Michael Greene

9th April 2004, 06:12 AM	#3
MJGreene Audio Lives for gear Join Date: Mar 2004 Location: The Land Behind The Zion Curtain Posts: 1,031	Also I forgot to mention. If your not as in to the DIY route. Then I would highly recommend JLM audio www.jlmaudio.com as a great alternative. They make a great package and also to a transistor mod to give you 50 db of gain, plus they go thru everything in the modules except the transformers and bring it up to spec if it is out. Joe is a great guy and very very helpful to talk with. There racks are very reasonable and ultra pro. Michael Greene

9th April 2004, 12:41 PM	#4
fraka2000 Gear nut Join Date: Apr 2004 Location: Montréal Posts: 81	Thanks a lot!! Now it give good me really good place to start!! It will be a little bit more complicated than i taught,but i think it worth the effort!! thanks!!

15th April 2004, 03:59 PM	#5
fraka2000 Gear nut Join Date: Apr 2004 Location: Montréal Posts: 81	** and would first suggest that you wire a 10 or 20 DB pad into your unit even before you hit the pre.* Would you wire a 10db or a 20 db pad? And how do i wire a pad? Do you have schematics or i can buy one already done and just solder it Thanks

15th April 2004, 05:09 PM	#6
MJGreene Audio Lives for gear Join Date: Mar 2004 Location: The Land Behind The Zion Curtain Posts: 1,031	I believe that I wired a 10 db pad into mine. It seems like it is more than enough even for drums. I wired mine to a switch on the front panel and I am sorry but I don't remember the values. I have this link that tells you a couple of ways to wire a pad and I would go with that. I think the Sure in line pads are great. Kind of inexpensive and very transparent. If you went that route the only thing you would sacrifice is not being able to control it from the front panel. http://www.ethanwiner.com/gadgets.html Check it out. I seem to remember somebody gave me the values and I don't recall what they were. Sorry. You might check out that Roll music site I think I gave you, they have a great set up for power, phase, and pad that looks very very cool. Much better than what I have. Plus their power supply looks better than mine. I have been thinking about re-racking mine better than I did before now that I have more knowledge of the units and racking gear. Good luck and feel free to ask any questions. Michael Greene

16th April 2004, 01:01 AM	#7
fatty Gear addict Join Date: Jul 2002 Location: Melbourne Posts: 349	http://www2.yamaha.co.jp/manual/engl...a&lang=english type in pm1000 in the model number box. near the end of the document you'll find a table with resistor values for pads from as low as 1db to as high as 40db or so. there's also a schematic and a photo of a "H" pad. very easy to wire onto a dpdt switch too.

16th April 2004, 04:34 AM	#8
MJGreene Audio Lives for gear Join Date: Mar 2004 Location: The Land Behind The Zion Curtain Posts: 1,031	Thanks so much for that. Couldn't have asked for a more concise description of values and diagrams. I will keep that PDF in my file. Thanks again, Michael Greene