problems with ma-100, low sound level at DVinfo.net

Josema Herraiz · June 25th, 2004, 03:08 AM

My problems started when I bought things without having enough information. I didn´t know about this forum yet! But it´s my fault.
I have a good shotgun mic, sony C-74, and I bought the ma-100 adapter for my xl-1. I tried to get batteries for this mic but I learnt they were too expensive and hard to obtain. I looked for phantom suppliers in my city and I found a cheap one that I thought it was enough.
Result: with my xl-1, this mic, the ma 100 and the phantom supplier the input sound level is very low. I think everything is ok with my camera configuration.
What is wrong? preamp is the problem? (my ignorance about sound is remarkable but I want to learn!) Reading through the forums I have learnt about mm-1 sound device, beachtek products and so on. What can i do? Throwing away all what I bought (and the money with it)? Is there any solution?
Thank you for your patience to read this

Hsien Yong · June 25th, 2004, 06:35 PM

I'm curious, what sort of phantom power supply are you using?

Josema Herraiz · June 26th, 2004, 03:39 AM

It´s a black box, XLR input output connections, fed by a 9V battery, 12-15V AC/DC supply....
as I am reading...perhaps my mic needs higher power than 12-15V?
Another question: I have used the mic twice. The first time I used it, it was fed by a mixer with phantom power. The sound level was acceptable. The problems came when I used this phantom power supplier.
The power or the preamp? The mixer had preamp for the mic I guess. Maybe the preamp of the camera is not enough for my mic?
Sorry if I am saying nonsense. Thank you for your patience

Oleg Kaizerman · June 26th, 2004, 12:39 PM

its not good, the 74 need 48v ph , you cant work with that box

Hsien Yong · June 27th, 2004, 01:31 AM

Yeah you probably need a phantom power supply that supplies
48V... AKG & Shure have models that run off a 9V battery.

June 25th, 2004, 03:08 AM	#1
Josema Herraiz New Boot Join Date: May 2004 Location: Zaragoza, Spain Posts: 17	problems with ma-100, low sound level My problems started when I bought things without having enough information. I didn´t know about this forum yet! But it´s my fault. I have a good shotgun mic, sony C-74, and I bought the ma-100 adapter for my xl-1. I tried to get batteries for this mic but I learnt they were too expensive and hard to obtain. I looked for phantom suppliers in my city and I found a cheap one that I thought it was enough. Result: with my xl-1, this mic, the ma 100 and the phantom supplier the input sound level is very low. I think everything is ok with my camera configuration. What is wrong? preamp is the problem? (my ignorance about sound is remarkable but I want to learn!) Reading through the forums I have learnt about mm-1 sound device, beachtek products and so on. What can i do? Throwing away all what I bought (and the money with it)? Is there any solution? Thank you for your patience to read this

June 25th, 2004, 06:35 PM	#2
Hsien Yong Regular Crew Join Date: May 2004 Location: Singapore Posts: 111	I'm curious, what sort of phantom power supply are you using?

June 26th, 2004, 03:39 AM	#3
Josema Herraiz New Boot Join Date: May 2004 Location: Zaragoza, Spain Posts: 17	It´s a black box, XLR input output connections, fed by a 9V battery, 12-15V AC/DC supply.... as I am reading...perhaps my mic needs higher power than 12-15V? Another question: I have used the mic twice. The first time I used it, it was fed by a mixer with phantom power. The sound level was acceptable. The problems came when I used this phantom power supplier. The power or the preamp? The mixer had preamp for the mic I guess. Maybe the preamp of the camera is not enough for my mic? Sorry if I am saying nonsense. Thank you for your patience

June 26th, 2004, 12:39 PM	#4
Oleg Kaizerman Major Player Join Date: Dec 2003 Location: israel Posts: 296	its not good, the 74 need 48v ph , you cant work with that box

June 27th, 2004, 01:31 AM	#5
Hsien Yong Regular Crew Join Date: May 2004 Location: Singapore Posts: 111	Yeah you probably need a phantom power supply that supplies 48V... AKG & Shure have models that run off a 9V battery.