AUDIO IMPUTS for CANON XL1 at DVinfo.net

June 18th, 2002, 06:11 PM

Dear friends:
I send to you an electronic circuit , that allows to connect a microphone with connection Canon connections in the RCA imputs of the Canon XL1.
I hope that it is useful to them.

http://www.gratisweb.com/pixelmultimedia/circuitodibujo.jpg

http://www.gratisweb.com/pixelmultimedia/circuitofinal.jpg

Veronica

Rik Sanchez · June 18th, 2002, 07:26 PM

Thank you for the plans for the RCA connectors, I'll go buy the parts and try to make one next week.

Steve Savanyu · June 19th, 2002, 07:21 AM

Andreveroli,

Electrically, your circuit and connections should work. However, you may experience noise on your mic line especially if you are using long cables from the mic to the XL1s. The noise could be hums, buzzes, etc casued by other electrical equipments in the vacinity of the mic line.

Why? Becasue the XLR mic output is a very low level balanced type circuit which is designed to cancel out induced noise. (I just saw an article in a video magazine on this very subject.) When the line is unbalanced, it becomes more suceptible to noise pickup as the "cancellation feature" is defeated.

The MA100, MA200, Beachtek adapters, and other devices contain transformers or circuitry to properly interface the balanced mic line with the XL1s. If you want to build you own device, I would suggest a microphone matching transformer (Audio-Technica CP8201 or equivilent) and a cable to convert the 1/4" plug to two RCA's.

This should give you better results when using microphones with XLR connectors.

Cheers... BTH

PS. I work for a major microphone manufacturer and get this question quite regularly.

June 19th, 2002, 07:37 AM

Ok, the circuit is a single simple circuit, it does not try to compete with MA100 or 200. But it works very well.
I have not noticed noise, hums or buzzes using a microphone of 600 ohms of impedance and like the Shure Betagreen or MA 52
I use short wire ( Belden ) only 3 o 4 meters long.
Thanks for the commentaries

Veronica

June 18th, 2002, 06:11 PM	#1
Andreveroli Posts: n/a	AUDIO IMPUTS for CANON XL1 Dear friends: I send to you an electronic circuit , that allows to connect a microphone with connection Canon connections in the RCA imputs of the Canon XL1. I hope that it is useful to them. http://www.gratisweb.com/pixelmultimedia/circuitodibujo.jpg http://www.gratisweb.com/pixelmultimedia/circuitofinal.jpg Veronica

June 18th, 2002, 07:26 PM	#2
Rik Sanchez ChorizoSmells Join Date: Apr 2002 Location: Osaka, Japan Posts: 424	Thank you for the plans for the RCA connectors, I'll go buy the parts and try to make one next week. __________________ ChorizoSmells Video Barrio Tamatsukuri, Osaka, JAPAN

June 19th, 2002, 07:21 AM	#3
Steve Savanyu Boss Hog Join Date: May 2002 Location: Hudson, Ohio Posts: 51	Andreveroli, Electrically, your circuit and connections should work. However, you may experience noise on your mic line especially if you are using long cables from the mic to the XL1s. The noise could be hums, buzzes, etc casued by other electrical equipments in the vacinity of the mic line. Why? Becasue the XLR mic output is a very low level balanced type circuit which is designed to cancel out induced noise. (I just saw an article in a video magazine on this very subject.) When the line is unbalanced, it becomes more suceptible to noise pickup as the "cancellation feature" is defeated. The MA100, MA200, Beachtek adapters, and other devices contain transformers or circuitry to properly interface the balanced mic line with the XL1s. If you want to build you own device, I would suggest a microphone matching transformer (Audio-Technica CP8201 or equivilent) and a cable to convert the 1/4" plug to two RCA's. This should give you better results when using microphones with XLR connectors. Cheers... BTH PS. I work for a major microphone manufacturer and get this question quite regularly. __________________ "Film is Art; Theatre is Life; Television is Furniture!"

June 19th, 2002, 07:37 AM	#4
Andreveroli Posts: n/a	Ok, the circuit is a single simple circuit, it does not try to compete with MA100 or 200. But it works very well. I have not noticed noise, hums or buzzes using a microphone of 600 ohms of impedance and like the Shure Betagreen or MA 52 I use short wire ( Belden ) only 3 o 4 meters long. Thanks for the commentaries Veronica