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Author Topic: Microdot to 1/8" adapters  (Read 1032 times)

Justice C. Bigler

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Microdot to 1/8" adapters
« on: May 18, 2021, 06:39:09 PM »

Is there any reason that the Microdot to 1/8" adapter from Tentacle Sync Systems would have a different output level than the same one from DPA?


I have a DPA 4099S for my saxophone, connected to my Rode Wireless Go II for my camera. Even at the lowest gain level (-30db) and with the pad engaged on the transmitter, I'm still blowing out the input and hard clipping the signal. I'm not even playing that loud. I have the Tentacle Sync version because it was $70 less expensive than the DPA one.


But, there's no active electronics or pads built into those adapters are there? Just a straight through wiring? Or are there?
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Helge A Bentsen

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Re: Microdot to 1/8" adapters
« Reply #1 on: May 18, 2021, 07:36:56 PM »

Is there any reason that the Microdot to 1/8" adapter from Tentacle Sync Systems would have a different output level than the same one from DPA?


I have a DPA 4099S for my saxophone, connected to my Rode Wireless Go II for my camera. Even at the lowest gain level (-30db) and with the pad engaged on the transmitter, I'm still blowing out the input and hard clipping the signal. I'm not even playing that loud. I have the Tentacle Sync version because it was $70 less expensive than the DPA one.


But, there's no active electronics or pads built into those adapters are there? Just a straight through wiring? Or are there?

Depends on the adapter.
DPA have resistors in some and different pinout/wiring in all models. They are custom designed to the listed WL system.

My experience is that buying the correct adapter from DPA for your wireless is the easiest and safest solution.


Edit: If you look at DPAs homepage you'll find three different 1/8" to microdot adapters. They are not interchangeable.
« Last Edit: May 18, 2021, 07:39:45 PM by Helge A Bentsen »
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Russell Ault

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Re: Microdot to 1/8" adapters
« Reply #2 on: May 18, 2021, 07:56:03 PM »

Without knowing either the TRACK E Timecode Audio Recorder's or the Wireless Go II's input wiring (and neither Tentacle Sync Systems nor Rode seem to publish that information) it's difficult to say for sure what you have or what you need. A multimetre might tell you how your current adapter is wired (the most common addition to these adapters is tying things to ground through a resistor). DPA does publish wiring diagrams for their 1/8" adapters (some of which have resistors built in, others not) if you can figure out which one you need.

That said, if my math is right, even wired correctly you'd only need about 118 dB SPL at the microphone for the 4099 to produce -20 dBV, which is the stated maximum input for the Wireless Go II. Padding the signal down passively might be a challenge because the you're already under-powering the microphone slightly with only 4V plug-in power.

-Russ
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Scott Holtzman

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Re: Microdot to 1/8" adapters
« Reply #3 on: May 19, 2021, 10:42:07 PM »

Is there any reason that the Microdot to 1/8" adapter from Tentacle Sync Systems would have a different output level than the same one from DPA?


I have a DPA 4099S for my saxophone, connected to my Rode Wireless Go II for my camera. Even at the lowest gain level (-30db) and with the pad engaged on the transmitter, I'm still blowing out the input and hard clipping the signal. I'm not even playing that loud. I have the Tentacle Sync version because it was $70 less expensive than the DPA one.


But, there's no active electronics or pads built into those adapters are there? Just a straight through wiring? Or are there?


Can I make a purple microdot joke?  I guess I already did.  I had never heard of that connector.
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Scott AKA "Skyking" Holtzman

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Justice C. Bigler

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Re: Microdot to 1/8" adapters
« Reply #4 on: May 20, 2021, 02:53:29 PM »


Can I make a purple microdot joke?  I guess I already did.  I had never heard of that connector.
You've never used DPA lavalier or instrument mics?
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Justice C. Bigler
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Scott Holtzman

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Re: Microdot to 1/8" adapters
« Reply #5 on: May 20, 2021, 04:56:35 PM »

You've never used DPA lavalier or instrument mics?


Sure, didn't know that's what they are called!



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Scott AKA "Skyking" Holtzman

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Russell Ault

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Re: Microdot to 1/8" adapters
« Reply #6 on: May 20, 2021, 05:37:33 PM »

You've never used DPA lavalier or instrument mics?

In fairness, DPA does offer their lavs with other connectors, although I think the 4099 is Microdot only.

{...} I have a DPA 4099S for my saxophone {...}

Something just dawned one me: is this the 4099 Loud SPL (with the red marking) or the 4099 Extreme SPL (with the yellow marking)? The Extreme SPL version is 10 dB less sensitive, which might help your problem?

-Russ
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Scott Holtzman

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Re: Microdot to 1/8" adapters
« Reply #7 on: May 20, 2021, 06:19:25 PM »

In fairness, DPA does offer their lavs with other connectors, although I think the 4099 is Microdot only.

Something just dawned one me: is this the 4099 Loud SPL (with the red marking) or the 4099 Extreme SPL (with the yellow marking)? The Extreme SPL version is 10 dB less sensitive, which might help your problem?

-Russ


I don't actually have any instrument or LAV, just the headworn models

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Scott AKA "Skyking" Holtzman

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Justice C. Bigler

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Re: Microdot to 1/8" adapters
« Reply #8 on: May 20, 2021, 09:48:45 PM »

Something just dawned one me: is this the 4099 Loud SPL (with the red marking) or the 4099 Extreme SPL (with the yellow marking)? The Extreme SPL version is 10 dB less sensitive, which might help your problem?
Mine is the loud version, with the red band. Don't think I'm going to go out and buy another $600 mic for this one transmitter.
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Justice C. Bigler
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Chris Hindle

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Re: Microdot to 1/8" adapters
« Reply #9 on: May 21, 2021, 08:48:18 AM »

Mine is the loud version, with the red band. Don't think I'm going to go out and buy another $600 mic for this one transmitter.
Although it might be the "Right Tool For The Job".........
Chris.
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Re: Microdot to 1/8" adapters
« Reply #9 on: May 21, 2021, 08:48:18 AM »


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