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Author Topic: DBX RTA-M microphone for RTA....any thoughts? Josh Jones Redhat Posts: 1207 From: Plano, TX Registered: Apr 2000 posted 05-17-2008 04:25 PM                        Looking for a relatively inexpensive RTA mic for use with my neptune audio RTA. I see these DBX mics everywhere for around $100. Has anyone used them or have any suggestions for something else? Thanks, JJ  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 05-17-2008 06:41 PM                     Seems that are good piece of equipment review I can't find it on the dbx website. Keep in mind that even the best measurement microphone needs to be individually calibrated. If DBX will not provide an individual calibration, think to have it calibrated from someone. I'm using behringers at the moment. Not the best in reliability. Marco  |  IP: Logged Michael Moore Expert Film Handler Posts: 188 From: Dover, DE / USA Registered: Jun 2006 posted 05-17-2008 09:31 PM                        I use this very mic for my RTA. It gives a relatively good flat response. It is not found on the web-site, this is true, however when I contact DBX about it, they email me a spec sheet on it in pdf format. I use with the built in RTA that is in the USL JSD-80D and get great response. It is phantom powered, I got an ART box 48 V phantom power for it. I have also used it on our audiocontrol SA-305 and compared it with the mic it comes with, and it compared well. I can not say it is the best or the worst, it is one of the only mics I have ever used with an RTA. I'm sure their are others mics out there that beat the pants off this mic. I use it in the same house over and over again. Also I am not an expert on B-chain alignments. I do our in house teching for projection and live sound. I have used it with the DBX driverack RTA with our live system and it works great. Mike  |  IP: Logged Tristan Lane Master Film Handler Posts: 444 From: Nampa, Idaho Registered: Feb 2002 posted 05-18-2008 01:51 AM                     I know that price probably plays into it, but the Countryman EMW and B3 mics are less than 200 dollars. These would probably be the best suited for the job. The R2 analyzer uses EMW mics, whereas the USL MMP-10 uses B6's. I'm not sure what mic the D2 uses.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 05-18-2008 07:07 AM                     R2 uses levalier microphones! I really didn't know. EMW datasheet I'm really curious to know which microphones D2 uses. Marco  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 05-18-2008 08:02 AM                     D-2 uses the same mics the R2 uses. MArk  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 05-18-2008 10:24 AM                     So curious, they're not listed for sound measurements! They must be very good microphones.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 05-18-2008 12:49 PM                     The D2 now uses a microphone made for Acoustx. They are German made. http://www.acoustx.us/am1_microphone.html They still offer the countryman version though. Steve  |  IP: Logged Tristan Lane Master Film Handler Posts: 444 From: Nampa, Idaho Registered: Feb 2002 posted 05-18-2008 01:54 PM                     AcoustX website states that the microphone is calibrated against a lab mic. How much calibration can be done to the actual mic? Can they tweak it in some way to achieve a flat response? I like the fact that they offer it with the stand I wish the USL kit came with stands, the seat straps and alligator clips aren't the best.  |  IP: Logged Josh Jones Redhat Posts: 1207 From: Plano, TX Registered: Apr 2000 posted 05-18-2008 04:54 PM                        I decided to try the DBX. In the end the analyzer isnt all that cutting edge anyway so it should work fine. Unfortunately I will either have to modify my RTA for phantom power or buy a phantom supply. JJ  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 05-18-2008 05:17 PM                     quote: Tristan Lane AcoustX website states that the microphone is calibrated against a lab mic. How much calibration can be done to the actual mic? Can they tweak it in some way to achieve a flat response? They create an offset file for the R2 or D2...that is the calibration they refer to. They don't actually do anything to the microphone. An R2 or D2 applies this offset file whenever you are looking at the response from the microphone. So, in essence, all of the mics are precisely calibrated as needed (within 1/4 dB), including wideband SPL response. If you haven't tried one of these systems, you should. Steve  |  IP: Logged

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