Trim levels

Rick Reineke · May 28th, 2013, 12:24 PM

It varies by model, as I recall the EX1 does not have a switchable limiter. The EX1R and EX3 does have a switchable limiter.
Not to be confused with AGC, which most audio people DO NOT LIKE.. OR USE.

Josh Bass · May 28th, 2013, 12:40 PM

Oh ok. So "R" and 3 only. I have a client who has the original EX1. So I guess no worries then.

Daniel Epstein · May 29th, 2013, 08:32 AM

Hey Roger,
Hope you figured this out before your trip. Trim in this case is allowing you to match your microphones output to a range where the input knobs will work well for you. -41DB is not unusual for a mic so if you like the range you are getting you are good to go. Professional Line Level is usually +4DBU, Consumer Line level is -10DBU and Mic Level can be anywhere from -30DBU to -60DBU so the trim would give you the opportunity to cover a wide range of outputs from various devices if used properly. When using a 416 Phantom power on my HPX 2000 I have to set the mic level trim to -40 instead of its usual -50 to avoid distortion on the peaks even using Auto gain. This is probably the case with what you are doing. Since you had too little signal at 0DB setting the trim to -40 increased the inputs sensitivity. If you hear the sound clipping on input decreasing the sensitivity by setting the trim to -30db might help.

May 28th, 2013, 12:24 PM	#16
Rick Reineke Inner Circle Join Date: Aug 2008 Location: New York Posts: 2,039	Re: Trim levels It varies by model, as I recall the EX1 does not have a switchable limiter. The EX1R and EX3 does have a switchable limiter. Not to be confused with AGC, which most audio people DO NOT LIKE.. OR USE.

May 28th, 2013, 12:40 PM	#17
Josh Bass Slash Rules! Join Date: Apr 2002 Location: Houston, Texas Posts: 5,472	Re: Trim levels Oh ok. So "R" and 3 only. I have a client who has the original EX1. So I guess no worries then. __________________ The Bass' camerawork The Bass on IMDB

May 29th, 2013, 08:32 AM	#18
Daniel Epstein Trustee Join Date: Jan 2006 Location: New York, NY Posts: 1,267	Re: Trim levels Hey Roger, Hope you figured this out before your trip. Trim in this case is allowing you to match your microphones output to a range where the input knobs will work well for you. -41DB is not unusual for a mic so if you like the range you are getting you are good to go. Professional Line Level is usually +4DBU, Consumer Line level is -10DBU and Mic Level can be anywhere from -30DBU to -60DBU so the trim would give you the opportunity to cover a wide range of outputs from various devices if used properly. When using a 416 Phantom power on my HPX 2000 I have to set the mic level trim to -40 instead of its usual -50 to avoid distortion on the peaks even using Auto gain. This is probably the case with what you are doing. Since you had too little signal at 0DB setting the trim to -40 increased the inputs sensitivity. If you hear the sound clipping on input decreasing the sensitivity by setting the trim to -30db might help.