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Inline Devices for 2018
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Jon O'Neil
Kill Devil Hills, NC
13 Posts
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January 30, 2018 - 5:04 PM

Some of these changes were held over from 2017, as I just couldn’t quite get the time to bring them to market! Some are ready to go now, some will be soon, and some still on the drawing board will have significant revisions from the 2017 planned updates:

Coming for inline devices in 2017:

Already released:

– First, the VPD highpass (low cut) filter is available now in the selection menu. There are several versions, covering both microphone and line as well as balanced and unbalanced applications.

– Next, there are some new options in the MPD menu for 3.5mm miniplug to male XLR attenuators, both mono and stereo. Like other unbalanced to balanced MPDs, the stereo version is impedance-balanced to provide a balun function.

Coming soon:

– The long-delayed VPD midrange passive notch filter, in February!

– An 5V-12V converter cable that enables use of 5V USB battery packs with the original IPA version will be made available–it’s already been tested and is just waiting for a PCB order for a final prototype. This function, which will be internal to the upcoming IPA version, will thus be extended to earlier versions as well.

On the drawing board for the year:

– The 2017 planned but unreleased IPA update has been expanded extra features: the 2018 power circuit revision not only reduces voltage drop for phantom powering, it also has an internal converter circuit so that the IPA can run on 5V external batteries, and has a charge regulation circuit so an internal 3.6V NiMH (or customer-sourced Li-ion) battery pack will be options instead of the standard A23 battery provision. Even more exciting, the IPA can now support one, two, or four channels, with the output connector being XLR-3-M (mono or stereo) or XLR-5-M (stereo or four-channel)! Four-channel gain will be set with a hex switch, which yields two fully selectable gain levels per channel. Mono versions will use a six-position switch, and the stereo version will continue to use a three-position switch. All new versions of IPA will now use the extended case (most early ones did already, due to connector requirements).

– The “channel strip” IPA has been revised from an all-analog to a digital version. Let’s call it the IPD! It will have onboard DSP as well as options for a USB transceiver or AES/SPDIF transmitter for maximum flexibility in output configuration. There will be adaptor cables for various options from the main XLR-3-M output–AES42, SPDIF coaxial or optical, and phantom-powered analog. Yes, all from the same box! It will run from analog or AES42 phantom power, USB power, or external 5V power. I am very excited about the onboard DSP; there will be stock programs for live sound or recording settings, manually selectable via a hex switch. A further planned feature is for USB control of the DSP so that every setting (gain, EQ, feedback rejection, compression, matrixing, gating, delays, etc.) is fully configurable via a Windows and hopefully also Android application!

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Jon O'Neil
Kill Devil Hills, NC
13 Posts
(Offline)
2
February 9, 2018 - 5:51 PM

The MPD attenuators now have an option for right-angle connectors in the menu. That includes a right-angle XLR adaptor, which may be ordered as an attenuator, polarity inverter, or simply as a pass-through.

https://naiant.com/wp-content/u…..171534.jpg

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