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#333832 - 01/28/16 03:51 PM [Recording, Mixing, Performance and Production] Does a +24 volt device work with a +48 volt powered mixer
PeterGannon Offline
PG Music Staff

Registered: 05/29/00
Posts: 13422
My son has an AER pocket tools Colorizer preamp. It doesn't provide its own power but it says it accepts +24 V of phantom power I've heard that mixers differ in the amount of phantom power that they provide for example it's common for them to provide +48 V of phantom power. Would that work with his +24 V device or would it damage it?
Have Fun!
Peter Gannon
PG Music Inc.

#333857 - 01/28/16 06:55 PM [Recording, Mixing, Performance and Production] Re: Does a +24 volt device work with a +48 volt powered mixer [Re: PeterGannon]
Brian Hughes Offline

Registered: 06/10/08
Posts: 281
Loc: Jonesboro Arkansas
Peter I just read the manual for this preamp. It is supposed to have a 24v DC power supply to power the device. The power supply jack is the small one on the rear. It also can provide 24v phantom power available at the XLR socket on the input. There is a button on the rear that turns on this phantom power. There are 3 types of phantom power specs which are 48v, 24v, 12v. The 24v is not a very popular one at all. What you would usually plug in here is a condenser mic with the phantom power turned on. This should work ok for even 48v models. Might try it on a inexpensive condenser first though.

Below is from your user manual.

Use of 24V- rsp. 48V-Phantom-Power
(Phantom power = remote supply, here: powering an audio device via the connected audio line) Turn on the phantom power only if the unit connected to the XLR socket is designed to handle it! In general, suitable units are e.g. condenser microphones, active DI boxes and other special audio devices, whose power supply is drawn from the phantom power. Such devices are also labelled accordingly; please heed the permissible power consumption (max.10mA). High-quality dynamic microphones with a balanced signal need no phantom power, but can handle it anyway. Other devices which have not been designed explicitly for phantom power operation can suffer from considerable malfunctions, and damage may result as well. Examples of devices that may be damaged by incorrect application of phantom power include: Low-cost dynamic microphones with a mono jack plug (unbalanced signal) that were fitted afterwards with an XLR connector. Audio devices with a balanced XLR output (e.g. DI boxes, effects devices, instrument preamps with a DI output etc.) which are not protected against phantom power applied to their XLR output. (The DI connectors on AER products are protected against applied phantom power.) Other audio devices (such as preamps, effects pedals etc.) whose unbalanced line output was replaced by an XLR socket. If in doubt please consult the manufacturer of the device you are using.

Edited by Brian Hughes (01/28/16 06:59 PM)
BIAB 2018 Ultrapack-Studio One Pro-Presonus Faderport-Presonus AudioBox iTwo
Windows 10 64bit 8gb

#333900 - 01/29/16 05:54 AM [Recording, Mixing, Performance and Production] Re: Does a +24 volt device work with a +48 volt powered mixer [Re: PeterGannon]
Guitarhacker Offline

Registered: 04/03/09
Posts: 5402
Looking at the website for this preamp, there are front and back views...

BACK VIEW: click on the "back view" button

It clearly says 24 vdc with the center pin positive and the shield/chassis ground negative. If you feed anything else to this power input, you risk sever damage to the unit faster than you can pull the plug back out. The 24v phantom power input means 24 volts...not 48 volts. If a mixer delivers 48v, do not use it. You will damage the preamp.

For this preamp, you will need to get the proper power supply to ensure it works properly and doesn't sustain damage from the wrong supply voltages.

It needs 24vdc to work properly....Applying the wrong voltage of 48 volts is twice as much as it needs. 10% or so is generally acceptable but not a 100% increase. I would wager money that applying 48vdc will damage the preamp.

Another reason to get the correct power supply is it will provide not only the correct voltage, but will also have the capacity to deliver the current needed by the preamp and very importantly.... the correct polarity. Throwing the proper voltage of 24vdc but in reverse polarity can also cause substantial damage to the components on it's circuit board.

Yes... you will sustain damage with the wrong voltage.

Since you're asking this, my assumption is you do not have the power supply with this preamp. In that case, I would find and purchase the proper plug in power supply to use with it. Contact the mfgr and buy it from them.... that way, you're assured of getting the right one to make things work properly.

EDIT TO ADD: You could use this preamp with any a preamp, but do not use the 48v phantom power of any mixer or interface to provide the power for it to operate.

Edited by Guitarhacker (01/29/16 10:10 AM)
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RealBand 2018 Build 5 Update Available!

RealBand 2018 customers can download the latest free patch update here:

Summary of Changes for Build 5
Added: When generating the input file for saving as an MGU/SGU SongMode128= is saved to the input file.
Added: Localization support for 2018.
Added: flyby hints to new dialogs.
Fixed: Save As with a filename greater than 128 chars could cause an error 123 plus access violation.
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Fixed: Pressing the Change button in the Event List Window could result in an access violation if an event was not a Note event.
Fixed: When running in Win 10, and using BBW or PT to generate audio harmonies, an error would occur saying that you need BB 2011 or PT 12 to generate audio harmonies.
Fixed: Midi Thru Method was not being saved to the .INI file. It always reverting to Track-Specific when booting up RealBand, even if the user manually changed the setting to Global in the Midi Thru Settings dialog.
Fixed: Delete All Notes on This Peg menu item in notation window right-click menu was missing.
Fixed: Potential crash on exit (having to do with the DLL attempting to free up a dynamic array that was passed to it).

Band-in-a-Box® 2018 Build 512 Update Available!

Band-in-a-Box® 2018 for Windows customers can download the latest free patch update here:

Summary of changes for Build 512 since 510 (Feb 15 2018):
Fixed: "Load SoundTrack Song" and "Load song with RealDrums Audio" buttons in the Sound Track dialog were not working.
Fixed: After returning Band-in-a-Box to factory settings the File Open dialog would default to the bb\Data\Lib directory.
Fixed: Choosing a custom chord sheet font would ignore any color choice made in the font selection dialog.
Fixed: Drum names were sometimes truncated in the RealDrums MultiDrums and Quicklist dialogs.
Fixed: Exporting a MIDI file might cause the error, "MIDIConv.exe no found".
Fixed: Mixer changes were not undoable, and would not cause user to be prompted to save their song when exiting.
Fixed: Static in RT2438 and other various RealTracks fixes.
Fixed: StylePicker database various updates. Some styles were displaying the wrong feel (swing/even) in notation. A few styles incorrectly showed missing Drums.
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PowerTracks Pro Audio 2018 is Here!

PowerTracks Pro Audio 2018 is here! PowerTracks Pro Audio 2018 includes many new features and enhancements:

Windows Audio (WASAPI) driver support. This allows for low latency audio recording/playback without requiring ASIO. Note that this supports 1 stereo input plus 1 stereo output at a time. For multiple inputs/outputs, you should continue to use either MME or ASIO.

ABC Notation format support. You can save a track of notation in a popular ASCII text format to import into other programs, or you can paste this format into a user forum as a way of sending the track (usually the melody and chord symbols) to other users without having to attach a file.

The built-in Audio Chord Wizard detection in the Chords window automatically detects the chords of the song, based on the audio data from all non-muted audio tracks. This works similar to the standalone Audio Chord Wizard, except that it uses the current bar lines of the existing song.

Notation Enhancements:
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-The Duplicate previous chord in notation right-click menu lets you quickly duplicate the previous chord (group of notes on same peg) without having to reenter it.
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...a full list of the new features in PowerTracks Pro Audio 2018 is available at

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We released the much-loved Xtra Styles PAKs in August 2016! This release included 164 RealStyles for Jazz, Country, Rock-Pop, and Singer/Songwriter and worked with any Band-in-a-Box® 2016 or higher UltraPlusPAK, EverythingPAK, or Audiophile Edition!

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Want to hear what other program users are doing with their Xtra Styles? Visit our Xtra STyles Contests forum to hear all the songs submitted during previous song contest we've had:

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"I bought my first version in 1994 and have progressed to 2018 version. I use it to create backing tracks for live music performance. I currently have over 2,000 songs performance ready. If you can and type, and use mouse it will work for you."
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"The premiere reason for me for buying this program; it has given me the freedom to fully complete the foundation for my songs without the confinement of limited minded musicians. After the song concept is complete, it can then be presented those musicians to play as a cover song. Also writing a song with a band gives them partial ownership of your idea... not cool... especially since they may have fought your idea every step of the way.. Every member of an organized band should own a copy of this program to compose or to even give legitimate composition alternatives to the original songwriter."
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Thanks everyone!

Support for ABC Notation Format in Band-in-a-Box® 2018 for Windows!

ABC notation is the simple text-based notation system used by musicians worldwide to store chords, melody, and lyrics of songs. Now with Band-in-a-Box® 2018 for Windows you can open and save songs in ABC notation format!

To save the song in ABC notation format, press the [Save As] toolbar button and choose Save as ABC notation file from the menu. Once opened, select a track that you want to save and choose your other criteria - The [Copy to clipboard] button will copy the file to the clipboard (that you can then paste it into other programs). The [Save as File] button will let you type a name and select the destination in your hard drive.

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