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The connected device requires too much power
Hi,
if I connect a PreSonus AudioBox 1818VSL to my iPad 2, iOS 9.3.5, the message "Cannot use Device AudioBox 1818VSL : The connected device requires too much power." appears.
Before I send the audio interface back to the dealer and order a device from another vendor, I want to know, if this issue could be fixed.
I already opened a PreSonus support ticket.
Is there any audio interface providing ADAT I/Os known to work with an iPad 2?
Regards,
Ralf
Comments
You can try going through a powered USB hub, but that looks like way too much interface for any iPad.
This is the model that PreSonus makes for iDevices:
https://shop.presonus.com/products/hardware/recording-systems/AudioBox-iOne
@telecharge is right about the powered USB hub but that may not even get it powered up fully.
I noticed when shopping around for interfaces last year that companies were getting hip to label their single & double input interfaces as iOS compatible whether 100% true or not. Some will work off iPad bus power, some may not get all the juice it needs, compromising tone, headroom etc and some will not work period causing that error message you are getting.
My opinion is get an interface that has it's own power supply. Yes its not as portable but if you set up your stuff in regular studio area it is the way to go. I know there's a few companies making decent priced multiple input/out interfaces...
Hope you find the one that works for you man...
I have a 44 vsl that works, the 44vsl and up have a power supply that has to be plugged in and you shouldn't need a powered USB.
Ralf
That box requires an 18V 2.4A wall adapter - whether used with an iPad or laptop. Are you getting this message with it plugged to the wall?
You could try running it through unpowered USB hub.
Is this interface supposed to be supported by IOS?
It has to have the power supply plugged in to work powered USB will work for adding other hardware but will not power the vsl series with the exception of the 22. It's is bus powered. They are all iOS compatable
Sure, the 1818 is powered by it's external power supply when connected to the iPad. I already was thinking about a powered USB hub, too. Unfortunately I don't have one at hand, but will get one after Christmas.
The audio interface doesn't need to be portable, but it must provide ADAT and MIDI. I'm neither interested in pro-sumer analog I/Os, nor in S/PDIF. All I want, is to be able to connect the iPad by ADAT out to a PC's audio interface ADAT in. Sometimes I might want to connect the ADAT in of the iPad's interface with an ADAT device, that has got professional grade analog inputs.
Assuming a device should provide anlog I/Os, resp. a headphone output, this could be handy, but isn't necessarily needed, IOW any recommended audio interface without ADAT, doesn't fit to my needs.
I just tried my 44 into my iPad 2 8.4.1 and it worked perfectly. I thought maybe yours wasn't working do to the iPad or iOS version. Are you using an official apple cck?
The 1818 is the same unit Rim used to show what could be done when the original Auria came out! I also have the focusrite 18i8 which has adat but only input..
I tested a very expensive iConnectivity cable, 30 pin dock to USB B, as well as a Chinese elCheapo cck. The quality of the Chinese elCheapo adapter not necessarily is less good than an original Apple cable. At least the iConnectivity cable shouldn't be a poor-quality cable and apart from this, other than a cck, it directly connects iPad and 1818.
I seem to remember iOS 9 breaking some interfaces. Might want to update. I think everyone is pretty happy with iOS 10
There's no upgrade available for the iPad 2, https://en.wikipedia.org/wiki/IPad#IPad_series .
"Back in 2011, with the release of iOS 4.2, Apple crippled the CameraConnectionKit by implementing a software limitation that dropped the power output of the CCK to 20mA from 100mA.
That ended up crippling the use of USB headphones, microphones, midi controllers, usb flash drives, most cameras, keyboards, audio interfaces, etc. without the use of an external powered USB hub.
It was discovered however that using an unpowered hub restores the functionality on the iPad (not sure about the iPhone), confirming that the limitation is lifted when any hub is connected to the iDevice (possible due to the iPad having native support for the Hubs)." - https://www.reddit.com/r/jailbreak/comments/1v3ur8/request_remove_the_20ma_usb_software_limitation/
Dunno. It's class compliant. You seem to be right with the unpowered USB hub, but to use less current from the battery, I'll buy a powered USB hub.
You've got to try different things. The new akai mpk mini works with passive USB hub but that's that particular case.
If you have an iConnectivity device, can't you use that as an intermediary?
No, I only bought an iConnectivity cable. Btw. I can return the cable and the PreSonus. I ordered it for testing purpose, to find out if the device works with a Linux PC, as well as with an iPad. For the Linux PC I already use a RME PCIe card, but I want to migrate to USB devices for the PC, too. I don't want any audio device mounted inside the computer, excepted of devices for the MIDI I/Os, since USB MIDI devices tend to cause too much MIDI jitter. I chose ADAT for galvanic isolation between ADCs/DACs and computer. The BNC WC might render the galvanic isolation by ADAT useless, but assuming it should cause issues, it would be possible to use ADAT without WC.
@Unknown_Crewman Let us know how/if the powered USB hub works. I'd be interested to hear how well it works in Linux, too
I'll report back.
Some tests were already done with a Linux PC. I guess this are the only interesting mails until now.
http://lists.linuxaudio.org/pipermail/linux-audio-user/2016-December/106991.html
http://lists.linuxaudio.org/pipermail/linux-audio-user/2016-December/107003.html
I believe that the iConnect cable is really designed to work with their interfaces; part of the cost as I understand it is in regulating the voltage (as the iC boxes support charging) as well reducing any interference with the data signal.
In terms of connecting to a a standard (non iC) class compliant interface you need a CCK - and as inferred above there really does seem to be a difference between "real" Apples and knock offs when it comes to audio interfaces working nicely...
Intermediate result
The powered USB hub is delivered, connecting to an iPad works.
At the moment I have no time to test it, however, Music Studio 2 shows
For recoding audio Music Studio 2 offers to select between
but I didn't test recording audio or MIDI yet.
Audiobus doesn't stop "Refreshing...", if I want to select an input or output. Perhaps I didn't wait long enough.
Even without launching Audiobus I can't hear an audio signal on any of the 18 channels (8 analog, 8 ADAT, 2 S/PDIF), when playing an instrument with Music Studio 2 or Animoog.
Thank you for this tip! It just saved me $16 and another cord..
AUM offers all 18 inputs and outputs. I don't have time to test it right now. Any ideas how to get access to all channels using Audiobus?
@Unknown_Crewman Look into MiMix. http://audiob.us/get/804/MiMiX
https://iconnectivity.com/vanilla-forum/discussion/231/no-channel-selection-in-audiobus-system-audio-output
https://forum.audiob.us/discussion/8760/two-audio-interfaces
I connected CrystalSynth to port 1 of MiMix. MiMix shows 18 outputs. The only available output fader works for the stereo output pair channel 1 and 2. The meters show an audio signal, but it's not audible. If I select any other stereo output, the fader doesn't work, even MiMix's meters don't show an audio signal.
I dunno. If it was me, I would see if I could get any audio at all, and then see about routing channels.
PreSonus says your interface is a 'fully class-compliant Core Audio device and can be used on Mac OS X without the AudioBox VSL software installed," but iOS in not listed as a supported OS.
In my post from 12:09PM UTC I already mentioned that using Animoog as well as Music Studio 2, without using Audiobus and without using MiMix, gives no audio output. As soon as MiMix is involved, routing is involved, too. The default routing for port 1 are output channels 1 and 2, the only channels affected by the fader are channels 1 and 2, but as already pointed out, only the meters and the waveform graph show a signal, all you could hear is silence.
Many times it is the order of how you connect things.
Meaning power cords usb, midi etc.
Each MIDI hardware may have its own little proclivities.
That recording didn't work was a user error, I didn't care about the line level. Recording a track works. MIDI in and out works, too, this most likely was another user error. Audio out still doesn't work.
Sometimes my iPads stop sounding, and I can bring the sound back by plugging and unplugging headphones..., did you try if you have sound without the interface?
And are you sure, you are listening in on those channels, that give you viewable level meters?
Hope you can resolve this, cheers, t
Yes, without the PreSonus audio out works.
Yes, I'm sure that I listen to the correct channels.
This is an ASCII diagram of my test setup that works with Linux:
http://lists.linuxaudio.org/pipermail/linux-audio-user/2016-December/106991.html
I only reconnect the USB cable from the Linux host to the iPad host, anything else remains the same.
I know this is an old thread, but I just want people reading this thread to be aware (I wasn’t until today!) that the new lightning to USB 3 camera adapter takes a lightning connector... as well as providing a USB socket... and can power pretty much anything if you use the power plug that came with the iPad (jury is still out on iPhone though).
It alleviates the annoying connected usb device requires too much power message.