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Author Topic: decent low-power (PIP) 2 wire mics  (Read 1323 times)

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Online jerryfreak

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Re: decent low-power (PIP) 2 wire mics
« Reply #15 on: May 11, 2019, 09:50:01 PM »
Well i was experimenting with my 4061 and measured the voltage of my DAD6001 and DAD4099 phantom>microdot (latter is the same functionally but has a rolloff) with and without a mic attached. Both were 8.1V with no load, but much lower with mic attached. i tested 3 of the "legacy" 4061s and 2 of the "CORE" 4061s. Voltage under load was 2.4-2.5V with the legacy mics and 2.65-2.75 with the CORE series

I also tested my d:vice, which is ~4.95V with no load, but was  ~2.5V under load of legacy 4061s, ~2.725V under load of CORE 4061s.


hmmm. so i decided to try to power CORE 4061s with my A10 on PIP

A10 voltage with no load ~2.8V
with one mic ~2.4V
with 2 mics 2.2-2.3V (for both CORE and legacy 4061s)

i dunno, voltage is a little lower than the official DPA solutions, but sounds fine to me. here is a sample of me holding the two CORE 4061s about 8-12" in front of a monitor played at moderately loud volume (takes a few seconds to get into position, end of track i back up a bit)

https://soundcloud.com/user-760596491/4061-a10

I cant imagine that not working at your average rock show. noise floor might be perceptibly higher, or max SPL might be limited a bit, but again not an issue in many cases. and its perhaps the most diminutive rig out there

further testing:
Tested with Roland R07, 2.4V with legacy 4061 connected:
https://soundcloud.com/user-760596491/4061-r07
(R07 is 2.7-2.8V with CORE 4061s connected)

Tested with Microtrack II, 2.45V with legacy 4061 connected:
https://soundcloud.com/user-760596491/4061-mtii
(MTII is 2.75-2.85V with CORE 4061s connected)


the A10 sample above was with a CORE pair of 4061s, the R07 and MTII tests above were with the legacy versions of the 4061. Im not a huge fan of the MTII (reliability) but both the R07 and MTII seem like a safe bet with voltage very similar to the official DPA powering options

apparently the MMP-G cables that run the full size caps, should work fine with either the microdot adapters and d:vice, ergo, they may also be able to be run from PIP handhelds as well... will know soon. Specs say they only draw 1mA (as opposed to 1.5mA for 406x) so thats a good sign

it seems like the 4061 CORE versions have a slightly lower current draw compared to the legacy versions on every device tested apart from the A10. maybe the A10 has a different voltage/current control strategy and has a more constant voltage over a wider current draw range.
« Last Edit: May 13, 2019, 04:50:38 AM by jerryfreak »
in:
small: MK4/4V > CMR > V3 or J.Williams Mod MicMan Jr or no pre at all >AD2K/R07/PCM-A10/Oade Warm 661/DR100-MKIII

smaller: 4061/4099 CORE> d:vice MMAs

new kid on the block: 4011/4018 > MMP-G actives > d:vice

out:
home:Benchmark DAC1 HGC > Dynaudio BM15A active monitors
shop: Musical Fidelity VLink 192 Asynchronyous> coax> DAC1 > Rokit RP8 active monitors

Offline Gil

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Re: decent low-power (PIP) 2 wire mics
« Reply #16 on: May 15, 2019, 04:08:23 PM »

https://archive.org/details/cts2019-05-09.flac16

AT943 hypers> DR-2d PIP. You be the judge.
"Let's go do some crimes."

"To his mind, an opportunity to insult a successful ape came from the hand of Providence."

Teac ME-80(cards & omnis), AT943(hypers)>Tascam DR-2d

Offline Gutbucket

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Re: decent low-power (PIP) 2 wire mics
« Reply #17 on: May 16, 2019, 10:54:29 AM »
Well i was experimenting..

Betty betty interesting, thanks for this!
musical volition > vibrations > voltages > numeric values > voltages > vibrations> virtual teleportation time-machine experience
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Online jerryfreak

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Re: decent low-power (PIP) 2 wire mics
« Reply #18 on: May 16, 2019, 11:09:19 AM »
in:
small: MK4/4V > CMR > V3 or J.Williams Mod MicMan Jr or no pre at all >AD2K/R07/PCM-A10/Oade Warm 661/DR100-MKIII

smaller: 4061/4099 CORE> d:vice MMAs

new kid on the block: 4011/4018 > MMP-G actives > d:vice

out:
home:Benchmark DAC1 HGC > Dynaudio BM15A active monitors
shop: Musical Fidelity VLink 192 Asynchronyous> coax> DAC1 > Rokit RP8 active monitors

 

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