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Author Topic: Help/recommendations for Omni microphones  (Read 11393 times)

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Offline thomasdk7

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Re: Help/recommendations for Omni microphones
« Reply #15 on: January 15, 2024, 03:20:00 PM »
Voltronic might be right, but wanted to add that I've been running my 4061 for 18 years using 9v, still works. Came with the DPA MPS6030 but have also used standard church audio battery boxes and preamps. Microdot to 3.5mm cable gives you a lot of powering options.
Would also second AT853, then you can switch between omni or cardioid

Offline voltronic

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Re: Help/recommendations for Omni microphones
« Reply #16 on: January 15, 2024, 03:21:51 PM »
Voltronic might be right, but wanted to add that I've been running my 4061 for 18 years using 9v, still works. Came with the DPA MPS6030 but have also used standard church audio battery boxes and preamps. Microdot to 3.5mm cable gives you a lot of powering options.
Would also second AT853, then you can switch between omni or cardioid

I might be totally off base about that, but I remember reading it somewhere a long time ago.
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Offline aaronji

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Re: Help/recommendations for Omni microphones
« Reply #17 on: January 15, 2024, 03:52:31 PM »
^ This topic has been discussed many times here over the years. It is all a little murky, but I have never seen a definitive answer. Like thomasdk7, I have powered mine with an off-the-shelf 9V battery box from Sound Professionals. I have also used an MPS6030 and an MMA6000, both of which also use 9V batteries.

At some point, Jon from Naiant posted (now gone or, at least, not easily findable) that the DPA phantom adaptors had an 8.2V zener in them, which suggests that 8.2V is no problem. Additionally, the MPS6030 manual states, "The DPA MPS series is designed to work as battery power supplies for the entire range of DPA Miniature Microphones. Furthermore, the MPS6001 and MPS6010 will work as 48 V phantom power adapters. The MPS6001 delivers 5 Volts to the microphone voltage supply while the 2-channel power supplies deliver 9 Volts."

I have also asked DPA directly; the service manager in Longmont at the time (2013), said:

Quote from: DPA Service Manager
These are very good questions, the mic ideally like 8-12V to run. I have seen people use as high as 18V with no problems and as low as 5V.  If you get lower than that the mic gets really noisy. Most of our little power supplies put out around 7-8V.  Hopes this helps.

On the other hand, Len from Core Sound (I think) said 9V will fry the capsules.

So, in my opinion, 5 - 8.2V sounds like it should be OK. Maybe higher, maybe not...

Offline voltronic

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Re: Help/recommendations for Omni microphones
« Reply #18 on: January 15, 2024, 05:09:12 PM »
Wow, I would have never expected they could handle 12V, let alone 18V! I think it's worth another email to DPA to verify that info, and to see if it's any different for the newer CORE models
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Offline aaronji

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Re: Help/recommendations for Omni microphones
« Reply #19 on: January 15, 2024, 07:18:10 PM »
Lots of mixed messages. I think I would try one of those 12V Sound Pros boxes, but 18V would scare me. A lot.

Maybe try Danish DPA, if you e-mail them.

Offline SMsound

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Re: Help/recommendations for Omni microphones
« Reply #20 on: January 15, 2024, 09:10:32 PM »
Danish and American dpa service emails respond in hours with detailed technical info from their engineers in my  experience...they're amazing.
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Offline voltronic

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Re: Help/recommendations for Omni microphones
« Reply #21 on: January 15, 2024, 09:26:09 PM »
I just emailed the Danish head office. Besides asking about the optimal and safe maximum voltages, also asked if there was any difference in voltage handling for the CORE versions.
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Offline blee421

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Re: Help/recommendations for Omni microphones
« Reply #22 on: January 15, 2024, 11:42:45 PM »
reportedly 9Vs arent the problem, *fresh/hot* 9Vs or "9.6V" nimh. the former can top 10 V and the latter 11V

it is also dependent on the details of the battery box's internal circuitry.

Len has more experience with these than anyone and i trust his rec.

Their customer support has been spotty since Bruce Myers left years ago. Seems they relay what they are told, not what they have learned from cooking capsules inadvertently

9V alkalines run from 9V down to 6 or so. put them in another device to take the surface charge off to be safe
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Offline kuba e

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Re: Help/recommendations for Omni microphones
« Reply #23 on: January 16, 2024, 04:07:48 AM »
it is also dependent on the details of the battery box's internal circuitry.

The battery box has a resistor in its circuit. And both values, battery voltage and a resistor value are important for assessment. A higher voltage does not necessarily mean that the microphones will be burned. It would be better to contact the manufacturer of the battery box instead Dpa. I think Chris Church designed the battery box and preamp so they can power the dpa4061. I use dpa4061 with his preamp and battery box without problems. But who wants to be sure, write to Chris or search the forum here.

Offline voltronic

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Re: Help/recommendations for Omni microphones
« Reply #24 on: January 16, 2024, 06:18:09 AM »
I received a response:
Quote
Please find these data on our website – at the Explore specs. section - applicable to both legacy and core

https://www.dpamicrophones.com/lavalier/4060-series-miniature-omnidirectional-microphone

The relevant spec from the website:
Quote
Power supply (for full performance)
For wireless systems: Min. 5 V - max. 10 V through DPA adapter
With DAD6001-BC: P48 (Phantom Power). Will work from 12 V

So there you have it: 10V max.
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Offline DavidPuddy

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Re: Help/recommendations for Omni microphones
« Reply #25 on: January 16, 2024, 11:39:00 AM »
reportedly 9Vs arent the problem, *fresh/hot* 9Vs or "9.6V" nimh. the former can top 10 V and the latter 11V

it is also dependent on the details of the battery box's internal circuitry.

Len has more experience with these than anyone and i trust his rec.

Their customer support has been spotty since Bruce Myers left years ago. Seems they relay what they are told, not what they have learned from cooking capsules inadvertently

9V alkalines run from 9V down to 6 or so. put them in another device to take the surface charge off to be safe

Powerex sells an 8.4v battery I have been using with my 4061 non-CORE heavy duty mics.
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Offline u2_fly_2

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Re: Help/recommendations for Omni microphones
« Reply #26 on: January 17, 2024, 10:26:06 AM »
Thank you all for all the info :-)
Soundprofessionals Audio Technica AT 943 (SP-CMC-8) External Stereo Microphones > SP-SPSB-10-80020
Sound Professionals Micro-mini microphone power supply with mini 12vdc battery and 24 inch hardwired output cable Soundprofessionals Batterybox >> Olympus Ls-10 Linear Recorder > 4 GB > 24 Bit / 48 Khz  > 24 Bit / 96 Khz

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