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Gear / Technical Help => Battery Boxes, Preamps, Mixers, ADCs, and Processors => Topic started by: Kindguy on July 12, 2009, 03:48:15 AM

Title: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: Kindguy on July 12, 2009, 03:48:15 AM: My church omnis > Mod SBM-1 are working on a voice/check test. It it really providing enough power to the mics? Anyone know what voltage plug in power provides?

Also it's a oade 24 bit mod. Is Running mic in plug in power bypassing the mod? Does the mod only work line in?

I'm building a small rig to loan to a friend with my extra stuff. Church omnis> Mod SBM-1> JB3 / iriver

I also have a AT822 I could give him instead of the omnis. I've only used the 822 in a film project. So I don't know what it sounds like recording music. let me know your thoughts if you have any.

Thanks
Jeff
Title: Re: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: guysonic on July 12, 2009, 06:06:41 AM: Generally Sony's mic input design is quite good and mostly supplies ~2.5 volt mic power.

For what it's worth, I never liked what SBM did to sounds suggesting not using this if natural sound is important to you.

Some mod'd SBM-1 may have allowed 24 bit output not using SBM process.

Maybe better to upgrade to 24 bit recording depth featured on many newer flash recorders like Edirol R-09HR or Sony's D50.

More TS thread links to more recent PCM-D50 deck model (which has SBM optional mode!) technical posts/deck review info is at top of my tips page at www.sonicstudios.com (http://www.sonicstudios.com)
Title: Re: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: Kindguy on July 12, 2009, 06:46:59 AM: Yea, I'm trying to piece someone a FREE rig together with what I have. Do I need a battery box?

Hopefully Chris will pop in here.
Title: Re: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: Kindguy on July 13, 2009, 03:09:59 PM: I've always like the SBM-1. Ran it 480>m-148>sbm-1 you a long time, But I always ran it line in. I'm pretty sure running the SBM-1 mic in through the mini plug bypasses the mod. But wanted to ask if anyone was sure.
Title: Re: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: fmaderjr on September 04, 2009, 11:48:41 AM: 2.5 volts will not power Church omni's properly (unless special ordered with a different resistor to run on plug in power). Most of Chris' mics need a minimum of 5 volts to run properly.
Title: Re: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: Kindguy on September 11, 2009, 07:18:07 PM: Well mine powered the church mics just fine.

So I called Doug with my serial # He said the unit had both mods done. Line & mic in.

;D
Title: Re: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: Kindguy on September 11, 2009, 07:23:00 PM: Wish it had the coax mod on it. If anyone is willing to do one please PM me.

For stealth use I'm afraid to use the oade 7 pin. Guess I could gaffer tape it down.
Title: Re: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: fmaderjr on September 11, 2009, 08:23:12 PM: Quote from: Kindguy on September 11, 2009, 07:18:07 PM
Well mine powered the church mics just fine.

Chris says ST-11's require 4-12 volts
http://taperssection.com/index.php/topic,84929.msg1131405.html#msg1131405

I guess either the SBM-1 provides at least 4 volts or you didn't record anything sufficiently loud to run into a problem. The mics will operate at a lower voltage than Chris recommends, just not optimally.
Title: Re: Plug in power Sony SBM-1. What voltage? Mod question. Mic advice.
Post by: yug du nord on September 16, 2009, 07:55:50 PM: I've recorded some acoustic and mellow electric stuff with good success running CA mics > stock plug-in SBM-1.... if the spl's get to high though, the mics will probably start to overload. I also have an Oade Line-Stage mod SBM-1, but the 1/8" mic input is disabled.