 Connectivity problems when using Mbox 2 on certain PowerBook G4's. Pro ...
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| Connectivity problems when using Mbox 2 on certain PowerBook G4's. Pro Tools can't locate the Digidesign Hardware. |
Available for download (and in the Additional Files folder on Pro Tools LE 7.0 CDs) in a new category in the Support/Downloads area:
Mbox 2 Downloads:
http://www.digidesign.com/download/mbox2/
Mbox 2 Beta Firmware & Driver Update Kit v1.38
For Select PowerBook G4s Only
For more information on this issue, please see Mbox 2 Compatibility Information with PowerBook G4
http://www.digidesign.com/compato/osx/mbox2/pb.cfm
From the Mbox 2 Firmware v1.38.pdf Read Me document, included with both downloads:
We have identified a potential problem with some aluminum Apple PowerBook G4 models. These laptops may not provide sufficient power from one or both of their built-in USB ports.
Digidesign is providing a beta firmware and driver update to help counteract these issues. Only users experiencing a lack or loss of communication with Mbox 2 and a PowerBook G4 should use this update. If you do not have a PowerBook G4, there is no need to update your Mbox 2 firmware with this version.
Macintosh users that update to this firmware will not have their Mbox 2 recognized on a Windows-based PC unless they also update the Mbox 2 drivers on that Windows machine. Note that you only need to do the following if you have updated your Mbox 2 firmware as above, and want to use your Mbox 2 on both a Macintosh and a Windows computer.
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Mbox 2 inputs do not show up on a new track in a Pro Tools session or ...
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| Mbox 2 inputs do not show up on a new track in a Pro Tools session or are greyed out, even though I/O setup looks normal. |
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Specifications for Mbox 2.
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| Specifications for Mbox 2. |
Analog Inputs — 2
Separate source selection and gain control per channel
Mic: XLR with 48V phantom power
Mic preamp: >120 db EIN @ > 40 dB gain
Line: 1/4" TRS
DI: 1/4"
Maximum Input: 8.7 V RMS (balanced), or +21 dBu
Analog Line Outputs — 2
Maximum Output: +4 dBV into 1 kohm
Unbalanced output connectors
Headphone Output
Separate volume control—1/4" output
> 6 mW into 50 ohm
Digital I/O
S/PDIF (24-bit)
RCA jacks
Misc.
24-bit clean to/from the computer
USB type B socket (v. 1.1); cable included (does not support passive USB hubs)
Dimensions — measured with Mbox 2 in horizontal (handle-down) configuration
Height, box: 4.9cm; with handle: 7.7cm; with handle cover: 5.6cm
Width: 22.4cm
Depth: 18.4cm (includes knobs)
Weight: 1.23 kg.
A/D
Sample Rate: 44.1, 48 kHz
Dynamic Range: 106 dB (A-weighted), 103 dB (unweighted) 1,2
THD+N (line input): 0.00079% (-102 dB) @ 1 kHz 1,3
THD+N @ 40 dB gain (mic input): 0.006% (-84 dB) @ 1 kHz 1
Mic EIN (unweighted): -120 dB @ 40 dB gain, 150 ohm source
Frequency Response: +0/-0.5 dB, 20 Hz – 20 kHz3
Maximum Input: +21 dBu
Input Impedance (pad off): Mic=3.5 kOhm; Line=10 kOhm; DI= >1 MOhm.
D/A
Sample Rate: 44.1, 48 kHz
Dynamic Range: 106 dB (A-weighted), 103 dB (unweighted) 1,4
THD+N: 0.003% (-90.4 dB); -1 dBFS @ 1 kHz 1,3
Frequency Response: +/-0.5 dB, 20 Hz – 20 kHz 3
Power Consumption
360 mA from the USB power pin (1.8 W), phantom power off or phantom power on and unloaded. The power consumption will increase slightly depending on the device(s) plugged in, but it is self-limiting and will never be more than 500 mA (2.5 W).
notes:
1 Measurement made using balanced connectors
2 ADC measured -60 dBFS method with minimum gain setting
3 Measured relative to level at 1 kHz
4 Measured with digital input at -60 dBFS @ 1 kHz
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DAE error -6085 and -6086 with an Mbox 2 on a Powerbook.
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| DAE error -6085 and -6086 with an Mbox 2 on a Powerbook. |
If "Allow Processor Cycling" is enabled in the Energy Saver control panel, The Pro Tools transport is subject to very poor performance and will throw -60xx errors. Always disable "Allow Processor Cycling" for best performance.
If you have a "Processor Performance" drop down menu, select the "Highest" setting. Also, make sure Airport and Bluetooth services are disabled.
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What happens if my Mbox/Mbox 2 gets unplugged while I am recording?
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| What happens if my Mbox/Mbox 2 gets unplugged while I am recording? |
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Pro Tools will stop recording and show an alert letting you that this has happened. If you reconnect the USB cable you should be able to resume recording (once you clear the error message by clicking OK).
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Attaching Mbox 2 to computer while Digi 002 is also connected and a session ...
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| Attaching Mbox 2 to computer while Digi 002 is also connected and a session is open, or while using Core Audio may cause kernel panics or SWOD. |
This is a known issue in Pro Tools LE 8 (Mac OS X).
You should never connect another interface while the current interface is being used by Pro Tools or another application via Core Audio.
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Sessions that previously played fine in 7.4 are encountering 9073 errors ...
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| Sessions that previously played fine in 7.4 are encountering 9073 errors in Pro Tools 8 with an Mbox 2 and audio played from SATA drives. |
On certain systems you may see a reduction in the number of total tracks of playback you can get from a SATA drive in Pro Tools 8 vs. Pro Tools 7.x.
The workaround is to split the number of audio tracks between 2 or more drives.
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DAE Error 6101 occurs immediately upon playback in a 48KHz 24 bit session ...
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| DAE Error 6101 occurs immediately upon playback in a 48KHz 24 bit session when the H/W Buffer is set to 64 samples |
This is a known issue in Pro Tools LE 8 (Mac OS X with PPC).
There is no workaround.
This does not occur on Intel-basedMacs.
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Blue screen with Mbox 2 & Disabling DEP (Data Execution Prevention) on ...
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| Blue screen with Mbox 2 & Disabling DEP (Data Execution Prevention) on Windows Vista. |
If you are getting a blue screen when you connect your Mbox 2 (Mbox, Mbox 2 Micro, Mbox 2 Mini, or Mbox 2 Pro) to your Windows Vista computer, disabling DEP (Data Exectution Prevention) will resolve that problem. Follow the instructions below to disable DEP.
1. Click on the Start menu.
2. In the Start menu's search box, type in "cmd" (without the quotation marks). The result you get should be "cmd.exe".
3. Right-click on "cmd.exe" and choose "Run as administrator".
3a. Click the Allow button if it asks you for permission.
4. Type or copy & paste this into the command prompt window:
bcdedit.exe /set {current} nx AlwaysOff
5. Hit enter and you should see the confirmation: Operation Completed Successfully.
6. Restart the computer and DEP should be off.
If you would like to re-enable DEP enter the following into the command prompt window:
bcdedit.exe /set {current} nx OptIn
Hit enter and you should see the confirmation: Operation Completed Successfully. After restarting the computer, DEP will be re-enabled. If you are experiencing this problem and re-enable DEP, please be aware that the blue screen problem may return.
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System sounds loop repeatedly when played through the Mbox 2.
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| System sounds loop repeatedly when played through the Mbox 2. |
In one case, the user had the Mbox 2 connected to a USB hub on a MacBook Pro.
The Mbox 2 must be connected directly into a USB port on the computer. Hubs are not supported.
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