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I saw your DSM-9Ms and was interested in finding out more about them...Do they use a battery box like the other DSMs...I would be using them to tape rock concerts (thru the PA) using a Sony PCM M1...Also what is the difference between yours and Core Sounds HEBs (Also uses DPA4061s) Thank you >> The DSM-9M model is quite suitable for PA'd sounds and has a battery module (it's not really a box at all) with 15 db attenuation and 45cycle bass rolloff switches........... powered by two 3.6 volt lithium cells for about 350 hours. The differnences in the mic capsule is the modification of the basic mic to be neutral without the frequency dips and peaks of the stock capsule as Core sells this set. Mounting is also different and most suitable for secure eyeglasses or hat sweatband type mounting........... as you can see in the image. Sound quality will be much more natural with the modified set and easier reliable mounting with the <strong>Sonic</strong> <strong>Studios</strong> adjustable loops. The cost indicates just a little of the extra care put into this special model. If only recording PA'd type rock music, the quality aspect of the mic might be reduced to it's overall ability to handle loud sounds without strain. The normalized smoother response of the modified DSM-9M capsules may not be such a great advantage to spending the extra money for these types of refinements or enhancements to the stock microphone. There is a Jazz recording using this modified DSM-9M type set on my web site if you'd like to take a listen to a semi-acoustic venue (it's dixieland type jazz) that's not Rock. Best Regards in Sound & Music Recording, Leonard Lombardo ============================== Subj: Re: [ProAud] Panasonic capsules Date: 9/7/98 To: pro-audio@pgm.com In a message dated 9/7/98 1:20:28 PM Pacific Daylight Time, david@ writes: I'm not sure of the response to the lower frequencies with the stock 63/60 > capsule, but when properly sealed as with my company's DSM mic products, the > lower response seems consistent to below 5 cycles! A true pressure mic for > sure. This also varies from lot to lot. Sometimes even with sealing the rolloff starts around 30 Hz, due to variations in crimping (and the resultant air leak toward the front). >> The only word I could get (in 1990?) from the Japanese engineering manager of the 060 production line on differences between the
discontinued 063 and the current 060 capsule, is that the 060 "is a more rational design" ........ whatever that means, but he said the 060 does use the same FET transistor as was in the 063. After testing many thousands of both models, the 060 does seem much more consistent in low end frequency response; probably due to a better diaphragm to inside case perimeter seal ....... and/or increased precision on the small pressure equalization mechanism on the diaphragm frame. The 060 is also much more consistent in overall frequency response. The wideband frequency matching necessary for an ultraprecision matched stereo pair has been made a lot easier to find with the newer capsules. This would suggest better overall controls on mechanical tolerances. On the other hand, the newest 061 capsule, with its lower tensioned diaphragm, currently has looser end tolerance or precision that is showing up in a much harder to wideband match capsule. Making the precision match (the DSM-1) product more expensive to produce and is priced higher as a result of this (temporary?) lack of OEM capsule production control. I've noticed some of the 061 capsules have diaphragms that are so 'floppy,' that they are visually 'NOT stretched flat on the diaphragm frame as would be normally expected; some of these capsules have diaphragm tensioning that visibly changes with ambient temperature! Maybe this observation was on a few poor runs; time will tell for sure about this. This lack of tolerance control is probably just normal for being a very new (and low cost) capsule product that's going through a quality control learning curve; seeking a stabile refinement? ....... or less likely, be a basic mechanical design flaw that will never have the excellent consistency I now find in the 060. Lower noise capsule operation seems to be realized by greatly increasing the self-biased operating current of the internal FET buffer. Best Regards in Sound & Music Recording, Leonard Lombardo ---------------------------------------- Subj: Re: [ProAud] Panasonic capsules Date: 9/4/98 To: pro-audio@pgm.com CC: boyk@ When working as the component Engineering manager of the telecommunications department at Atari Corp in 1981, I had a very complete Bruel & Kjaer acoustic acoustic test system for doing measurements on the older models of these capsules (were the WM- 63A, now replaced by WM-60A). The capsules of my (and not Atari's) primary interest were the ones that had the 20-20,000 specifications; back-electrets with thinner diaphragms than the general purpose lower cost capsules. Measured with this equipment, the Fr response looked like a strait ruler line right to 20,000 (matching the mfg. spec. & graphs), but really extended far beyond the range of the B & K test equipment. Earthworks is using these basic capsules and produces mics tested to over 30,000 and 40,000 cycles of measurable bandwidth! They are known to use spark-gap measurement methods for transient/hi-frequency measurements. I'm not sure of the response to the lower frequencies with the stock 63/60 capsule, but when properly sealed as with my company's DSM mic products, the lower response seems consistent to below 5 cycles! A true pressure mic for sure.
Page 1 and 2: Sonic Studios OTHER MICS VERSES DSM
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Page 23 and 24: afford" Starting with the best know
Page 25 and 26: Leonard Lombardo ------------------
Page 27 and 28: pipes. I thought maybe a binaural a
Page 29 and 30: guitarist actually hears from the a
Page 31 and 32: practical and performance issues...
Page 33 and 34: use the omni set in a specific way
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Page 39 and 40: almost anyone in respect to input p
Page 41 and 42: http://www.tapetrading.com/ "It see
Page 43 and 44: Best Regards in Sound & Music Recor
Page 45 and 46: available microphone experts. As fa
Page 47 and 48: I'm currently shopping for a pair o
Page 49 and 50: manufacturers to offer and very dif
Page 51 and 52: What is the best single-point stere
Page 53 and 54: http://www.sonicstudios.com/mp3.htm
Page 55 and 56: My site has 'too high a quality for
Page 57 and 58: eception. Without the HRTF receptio
Page 59 and 60: the way big--time. The need to reco
Page 61 and 62: motions to check the deck's VU are
Page 63 and 64: I will gladly admit that this $7000
Page 65 and 66: LAPEL MIC Stereo Mics for MiniDISC,
Page 67: Avoiding Input Distortion DAT Deck

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