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Revolution 5.1 PCI Audio Card reportsReturn to News Page

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Reader Feedback on Revolution 5.1 PCI Audio Card in Macs
Reports Last Updated: Feb. 2, 2009 (v1.6 non-beta 10.5.x drivers)



This page has reader feedback and tips on the M-Audio Revolution 5.1 PCI audio card and drivers. (There's also a page here on Revolution 7.1 card reports.)

Reader Reports: (most recent first)
I welcome other revolution 5.1 card reports or tips (please include your mac model/OS version and driver version used in reports.) Thanks.

Updated Drivers for OS X 10.5.6: (2/2/2009)

" I wrote you before (Jan. 26th post below) about new revolution 5.1 and 7.1 beta drivers for Leopard. I just wanted to let you know that m-audio released the stable (non-beta) version, downloadable from their site.
(Here's a link to the M-Audio v1.6 Drivers (10.5.6 noted) for Revolution 5.1 card.)
I've still not installed those for my 5.1 (had installed the 1.6 Beta release) ... I'll let you know if i find any issues.
regards, Eugenio"

His earlier report on previous 1.6 Beta Leopard driver update is below.


(added 1/26/2009)
"Hi Mike, some days ago m-audio released new beta drivers for revolution 5.1 and 7.1 working on leopard. Rev. 5.1 had support for leopard since may 2008 (noted here below back in May 2008), while 7.1 got updated this month.

I've just installed the new 1.6.3 beta for my revo5.1, and there are less glitches and mixer is more responsive.

I have no more kernel panics (I had a lot of KP's before when waking from sleep or when it had to play 2 sounds at once.)

I suggest all revo users to upgrade their firmware. New version is downloadable from m-audio forum (not the homepage!) in the section "Beta Drivers".
(I checked the M-audio drivers page and as of this morning (Jan. 26, 2009) the Revolution 5.1 OS X Leopard beta there was still v1.6 (listed under 10.5.4 beta - dated 5/6/2008) and I didn't see anything for the Revolution 7.1 card later than the 10.4.6 driver there (from 5/20/2005). Got a link to the new beta drivers?-Mike)
You hard to watch inside forums. i dunno if you must be registered (for free) to download the package. Anyway, this is the link to the "home page" of beta drivers.
http://forums.m-audio.com/announcement.php?f=37 (has links to "New Revolution 5.1 & 7.1 Public Beta Drivers Available" for OS X 10.5.5. Not tested w/OS X 10.5.6? Are you using them with 10.5.6?-Mike)
I can confirm you that it works on 10.5.6 - Very satisfied with this new release.
Best Regards
Eugenio G."

I'm not a member of the forum but you can still access the page above which has links to these releases (from last month).


(added 10/24/2008)
"Successfully installed the Revolution 5.1 sound card in my PPC Power Mac G5 Dual 1.8. Running Mac OSX 10.4.11. After loading the driver, sound quality is good, surround seems to work. (driver version 1.6 used?)

After a couple days of use, the control panel looks really wonky, with icons splayed everywhere, not where they were upon initially installing the panel. Still works fine, just looks terrible, like beta software (which it is). (If that happened only after a couple days of use, could some file have gotten corrupted? (prefs file?)-Mike)

However, the driver seems to have trouble handling sound from different sources. For instance, when watching video using VLC and using Safari, when a website outputs sound, my audio gets really choppy. Solutions to this include opening the M-Audio control panel (sometimes thats all it takes), changing the surround mode to None/OpenAL, and changing it back (to Stereo x3, in my case).

Bass handling also seems poor when using iTunes, though this might just be my speaker setup. It sounds as if the software is clipping the low frequencies and passing them upwards. It sounds like the speakers just can't handle it, but I don't think that this is the case.
-Ben H."


"If anyone is interested, here's a conversation with an M-Audio tech about some problems with the Revolution 5.1:

Kernel Panics and no Audio on Games

Date: 05/22/2008 10:02 AM
I have 2 games that I play but since I've installed the 5.1 and the beta release, I either have no audio or the game crashes before it starts: Doom 3 and Quake 4.

With Doom 4 I get NO audio at all. I have the graphics at it's lowest setting and tried to enable surround and the "EAX" feature. ("EAX" is Environmental Audio, originally coined by Creative Labs (for PCs/Windows) way back when) When I try to set the audio settings, it says it doesn't recognize the hardware. With Quake 4 I'll get sound, but I'll get "popping" or the sound will go on and off at small intervals. It too doesn't recognize the hardware. I've tried the setting from both the 5.1 software and Apples Audio Midi as well and get the same results. Could it be that the games don't support the 5.1 through the Apple hardware?

Date: 05/28/2008 2:06 PM (M-Audio Support Reply)
I recommend a clean install of the driver.
First uninstall the past version you had installed using that drivers uninstaller.
Then uninstall the BETA driver using its uninstaller.
After uninstalling all previously installed drivers go ahead and repair disk permissions on you system drive.
Applications > Utilities > Disk Utility > Select your system drive on the top left and "repair disk permissions". Then go ahead and install the BETA driver only.

Please let me know how this works out. I will pass this information to our verifications department. Also please keep in mind that this is a BETA driver and we are working on releasing a fully supported driver.

Date: 05/29/2008 1:03 AM
I followed your steps. I had set the speakers to 5.1 and it has the same results, but 1: Quake 4 plays but only in stereo and in only 1 SIDE (left side of the speakers). Just to remind you, I'm using LOGITECH Z-5500 Digital Audio. 1 last thing in Quake 4 when I tried to set up an audio configuration it says that I don't have "OPEN AL". I did some homework and downloaded an OPEN AL for MAC and still the same results.

Date: 06/02/2008 1:00 PM (M-Audio Support Reply)
The problem you are experiencing is a known issue, on other games you can install the "OPEN AL" file just by clicking on the file provided by the games. With quake the "OPEN AL" has been problematic.
Have you tested the card with other games?

Date: 06/04/2008 8:49 AM
No problems with Call Of Duty, Return to Castle Wolfenstien, ROTC: Enemy Territory, Quake 3 Arena, and Medal Of Honor. The sound comes out great, but I have the same problem like with all the games, not recognizing the required hardware for the EAX HD sound format.

It seems that the older games that require 10.2.X and above give me no hassle. It's only the current games like Quake 4 and Doom 3 give me the most problems. I hear that Quake 4 for the MAC is running on a "virtual Program" to run on a MAC as opposed to natively run. Does that sound weird?

Date: 06/11/2008 7:18 PM (M-Audio Support Reply)
EAX is not supported on the driver you are using.
----------------------------------------------------

(System/OS Details)
Powermac G5 Dual 2GHz (June 2003), 8GB Ram
Nvidia 6800 ULTRA DDL 265MB
M-Audio Revolution 5.1
Two 500GB Seagate Barracuda HDs (7200rpm/32MB cache)
OS X Leopard 10.5.5
-Ron V."


Revolution 5.1 Audio Card Beta driver for OS X 10.5.2/10.4.11: (from 5/7/2008 news page)

"Hi Mike! At last they did it! M-Audio has relased a (beta) version for Revolution 5.1 driver working on OS X Leopard!
I was going to buy another soundcard!! but they did the miracle this morning! :)

The driver is working quite well on my Dual G5 2.5Ghz.. it has still the pops and glitch issue, which shows really OFTEN: adjusting volume, running 2 sounds at once, pausing iTunes, and so on.. but as they say it's still Beta! (and it shows!)
Anyway, my rear speaker goes back to play! :)

The new driver allows my mac to go to sleep with the Revo 5.1 card installed - (it did not work on 10.5 and caused kernel panics in 10.4), but after wake from sleep the sound card does not load 3d environment settings (must load the Application Panel to get it back)

Even if the sound card is not 100% working properly, I can say I'm happy to know that m-audio still remembers Revolution 5.1 users ;) I'll keep in touch for updates
-Eugenio"

The new driver is available at M-Audio's drivers page - here's the info on the (beta) Revolution 5.1 version 1.6 for OS X page which also has a user feedback form:

"Operating System(s): Mac OS 10.4.11 (BETA), Mac OS 10.5.2 (BETA)

Release Notes: ==This driver is released as a BETA candidate ==
Changes made in this driver release include:

  • Added support for Mac OS X 10.5.
  • Fixed delay processing, which did not work in previous versions of the driver. Please check that the delay settings are accurate for your speaker setup, or set all the delays to the same distance to disable delay processing.
  • Improved control panel responsiveness when dragging sliders.
  • Fixed peak meters to erase the background correctly.
  • Removed system-wide controls for the individual output channels. Please use the Revolution 5.1 control panel instead. This works around a problem where the first two channels (front left and right) would be reset incorrectly by the system UI server when using the system-wide volume control menu or volume keys on the keyboard. Master volume control is still available system-wide.
  • Fixed possible kernel panics on sleep/wake.
  • Inflated the package version number to match the control panel version.

    Known Issues:

  • DTS pass-through is not supported
  • Changing Surround Sound settings while streaming audio may result in distorted audio Workaround is to stop audio, make your desired setting changes, and restart audio.
  • Slower systems may experience performance issues during DVD Playback."
  • As of 9AM (Eastern) this morning I didn't see any updated OS X drivers for the Revolution 7.1 card (last update was v1.4.1 from May 2005)


    M-Audio Revolution 5.1 Driver Update Coming Soon? (See above for beta release info)

    "I contacted M-Audio recently about the lack of updates on the M-Audio Revolution 5.1 driver updates for over 2 years. I got an interesting response saying I should be on the lookout for updated drivers around the end of this Month (March 2008)... I personally won't hold my breath with their current track record on the subject.
    -Bryan

    Begin forwarded message:
    From: M-Audio Feedback (feedback@m-audio.com)
    Date: March 19, 2008 10:09:15 PM CDT
    Subject: RE: Lack of Driver updates for Revolution 5.1 Mac

    Hi Bryan, Thanks for reaching out and sorry about the delay. We are working on Leopard drivers for Revolution. There are still some significant issues that we struggle with, which is why you have not seen us launch beta versions like we did with the rest of our product line. I believe we are pretty close though and the target is to publish the drivers by month end.
    Hope you can wait for that and sorry about the delay.
    (M-Audio support)"


    (added 1/22/2007)
    "okay,time to do this up right. I have a Dual Processor 2.5 Ghz G5, with 1.5 gig ram, OS10.4.8 and the Revo 5.1 card. Works okay most of the time, but... occasionally sound drops out (won't play)....Google Video/on Internet and I have to switch over to built in sound. Now sampling rate stuck at 192 khz and I can't change it at all... still waiting for the updated driver ( for 10.4.2). I have driver version 1.4.1 and by mistake, downloaded and installed the Revo 7.1 drivers (maybe that explains the inability to change sampling rate?)
    (can you remove that driver/reinstall the 5.1 driver?)
    m-audio tech support is almost non-existant. WE are STILL WAITING for updated driver. Apple has updated their stuff, so Why not you?? As someone else said, what happens when Apple releases 10.5? will we still be waiting for this driver.
    Still much better card than Creative's Mac card. Although I haven't used OS 9 in a long time, I do remember that that card fought with the Sound manager and slowed your CPU down by 10-15% when using that card, so no good. Haven't tested the M-audio with internal DVD playback.
    -John B."


    (added 1/5/2007)
    "I have a Quicksilver 2002 933MHz / 768 MB / OS 10.3.9. I had trouble with the 1.0.0 drivers that came with the Revo 5.1, getting kernel freezes every time the computer tried to make a sound. But I downloaded the 1.1.017 version from their website and that straightened everything out, even though the update only notes compatibility with OS 10.3.8. The card appears to be working fine now, and the sound is much improved over the built-in speaker output.

    As it happens, I'll be receiving a copy of Tiger tomorrow. Reading the other posts in this collection, I am leery of making the upgrade. But I want to use Front Row to run my A/V system, so I think I will need to try. It appears that others have had some success with 10.4.2. I hope that others who have this setup actually working will write in to report on successful hardware/software combinations.
    Best regards, Bob S."

    You might also want to write M-Audio tech support on the state of current Tiger support based on some previous Tiger user comments here. (I don't own one of these cards personally.)


    (added 12/6/2006)
    just saw your thread about the Revolution 5.1.
    I must say that like many others, I was quite pleased with the card until I decided it was time to move on to Tiger. (I asked if he ever ran it with 10.3.9, as m-audio listed no 10.3.9 driver, although there was one for 10.3.8. See his reply below-Mike)
    But of course, their drivers has never been updated for Tiger even now that Tiger has been out for almost 2 years. (there was a 'beta' from about a year ago - see reports below)
    I own a 1.42Ghz Firewire 800 G4 with 2GB of ram and I installed the beta drivers back when they appeared in september 2005 and my main gripe has been with the DVD Player.
    Randomly but quite often, when returning to normal play after fast forwarding or backwinding ended in a Kernel Panic.
    Otherwise, I also had times where the outputs would simply not work until a restart or until I switched from digital out to the analog 5.1 outputs.

    I've raised the issue a couple of times with M-Audio support, providing KP logs showing clearly that the Revolution driver was the culprit, but I've never had an answer. I tried once with the French support and they sent me a reply stating that they were waiting for new drivers for months.

    So I finally gave up... the card is currently waiting for me to find the time to sell it on ebay. (Well I'm also thinking of simply sending it back to M-Audio with a nice letter stating how disapointed I was with their support...).
    Very bad customer relationship.
    (he later replied to the question of using it in 10.3.9, even though they list no 10.3.9 compatible drivers)
    I installed the card with 10.3.7 and upgraded all the way up to 10.3.9 before finally switching to 10.4.
    Since there was no drivers available for 10.4, not even the beta version, for a few months I used the card in 10.3.9 for quite some time. As far as I can remember I did have minor issues with outputs that weren't always available, but otherwise it seems to me that things got really wrong when I was running Tiger.
    Regards, Francois"


    10.3.9 User notes no Driver Support: (updated with comments on Tiger)

    (added 12/4/2006)
    "Hey, just saw the bit about M-Audio's Revolution 7.1. (recent update to Rev. 7.1 reports page) I've got their 5.1, so I figured I'd give my loose change worth. I'm on a Power Mac Quicksilver 867 Mhz, 640 megs RAM.

    The card should be good. Really, when I got it almost two years ago I was really happy with it. But OS X moves on, and M-Audio have the worst software updates I've ever seen. I believe their BETA software still isn't promised to work with 10.4. I've had numerous problems with the card's software - it randomly resets my settings - and it also seems to mess with OS X's MIDI Setup panel...every so often I'll lose all sound, and must open that panel and re-select the card and the proper frequency (44kHz) in order to get it back.

    Furthermore, I get a TON of audio feedback when playing sound and working in any program. For example, while playing iTunes I may scroll down in FireFox - and get a short blast of static. Sometimes even happens in iTunes when I'm scrolling through my songs. It seems like the sound often craps out whenever I suddenly do something processor-intensive (to a degree).

    Finally, while my computer is supported it could be because it's a little older...but I wouldn't know. Why? Because M-Audio's tech support is one of the worst I've ever seen. Well over a year ago I emailed them with all my problems. After a week, I got a 2-line reply:

    "10.3.9 is not currently a supported OS with the Revo driver (which is why the website doesn't display an available driver for 10.3.9). This may be causing the problems with his card"

    That's it...not even a period. This sums up the Revolution, and M- Audio, perfectly. I'm STILL waiting for software that actually works. They don't seem to care, and as far as I can tell have no intentions of updating any time soon.
    (Their Drivers search page has a 10.3.8 driver listed, although the last part of the info on it mentions it was tested/certified with 10.3.7 (typo?).)
    (He later wrote)
    They aren't focusing on Tiger at all! They have never released "final" drivers for Tiger; in fact all they've released for 10.4 are buggy "test" versions. Their last update was January 18th of 2006, for Tiger 10.4.4...they have a download option for 10.4, 10.4.2, and 10.4.4...but nothing for after that. On every version of the 10.4 driver they say:

      We are currently verifying compatibility of our hardware with Apple's new Tiger operating system revision 10.4.4. (Corresponding numbers on the earlier versions-Greg) No device manufacturer can predict the compatibility of their hardware with a new OS until the final version has been released. We value your time and user experience, and want to ensure that our Tiger drivers are as robust as possible before providing them for download. We thank you for your patience while we verify these drivers, and we will post them shortly.

    So they haven't released "non-test"Tiger drivers yet, but they haven't had an update in almost a year! There has never been any "verification" of Tiger drivers, and from talking on various forums with any other Revolution owners I could find, there has never been a more-or-less bug-free version for Tiger.
    Thanks, Greg J."


    Beta Driver Reports (from fall 2005)

    (added 9/26/2005)
    "I have a severe problem here with the latest drivers for this card. I am running 10.4.2 on my Quicksilver G4/933.
    I installed the beta driver, and everything was fine so far, but I noticed that the microphone input level is, even if turned up fully, way too quiet to be useful. Normal talking is at about -30 dB, it's ridiculous.

    So, I tried an older 10.3.8 driver, but it made everything go colorwheel. I uninstalled it, and installed the beta again.
    Here started the real problem. I can't even access the control panel anymore now, since it just jumps and quits again then. I can't launch the control panel app, and uninstalling doesn't work anymore, because the uninstaller reports a very clever "Error 13" :-(

    I uninstalled all components manually:
    - the kernel extension
    - device helper
    - prefs pane
    - control panel app
    I even deleted the prefs file and the receipts for the install. NADA!
    The problem after installing the beta driver (1.1.1) still persists, control panel always quits. I don't know what to do anymore... Help!
    (Update - he later wrote)
    Here is an update:
    Finally I made it to have the current beta drivers (1.1.1) run again (reinstalling OS X!!) but the problem of the low mic input level still persists. I wonder if the mic input is defective, I will try the line-in-port as well soon. I got myself a pre-amplifier today to have a possible workaround. I also wrote to M-Audio support, no response yet. Will keep you updated.
    -Chris "

    I wondered if reapplying a 10.4.2 combo update would have helped. (I also suggested writing M-Audio tech support.) If anyone knows of any fix for the low mic volume, let me know.


    (added 9/7/2005)
    "Hi Mike,
    Hooray, finally we have the revised driver (beta at http://www.m-audio.com/index.php?do=support.drivers) and it works 100% for me even as beta, on G5 dual 2.5 with 10.4.2 in iTunes, DVD, Finder, QT, HijackPro, GarageBand. No problems that I can discern and sound quality better than the 1.0 driver (a past tip from Tiger users was to run the v1.0 driver-Mike) and at least as good as it's ever been, which is to say superb. Plenty of level, very clear, excellent sound stage. Better late than never, thanks M-Audio ... and to Xlr8yourMac for the timely info.
    Cheers, Peter "


    (added 9/7/2005)
    "Hi Mike, From previous posting Update: 07-13-05 + 10.4.2 (see older report below for base system info)
    Downloaded new BETA driver today. So far DVD player works without distortions. Will try other apps tomorrow. Let see - how long has Tiger been out? M-audio speed of updating their driver truly deserves some sort of "time warp award" and still only a beta version!
    Jerry
    http://www.m-audio.com/index.php?do=support.drivers"

    If any other 5.1 card/Tiger users find the beta helps, let me know.


    (added 8/31/2005) "I am running a Revolution 5.1 card in my Dual 1.25GHz MDD. I have had some of the problems discussed with the Tiger owners, pop, hiss, snap etc., but my main problem is that every time I go to open up iTunes I get the bug report screen. I can cancel up to several times and it will finally open. This only happens with the owners desktop, the other accounts are just fine. I'm guessing I have something corrupted in my library, but can't seem to put my finger on it. (almost sounds like a corrupted prefs file but then the iTunes library is also stored in the user directory usually-Mike)
    M-Audio has no updated drivers posted, and the ones that are mentioned in the articles v1.5 and driver v 1.1.0 do not exist on the site any longer. Tech support is of no help either. Can anyone help?
    Jim "

    A past Tiger/OS X 10.4 tip (see below) was to use an old driver (but it won't help the iTunes problem if there's a corrupted pref/lib problem) - I just tried the link posted here in the past (below) http://www.m-audio.com/index.php?do=support.driverdownload&ID=454 (their site used to require cookies enabled in the browser) and it still shows the 1.0.0 driver link there.


    Tiger Tip (using old driver): (see below for updates/feedback)

    (added 8/8/2005)
    Hi there tiger owners,
    I recently bought myself a mac G5 and Revolution 5.1 card and I've found the only way to get around the popping/cracking etc is to install the 1.0.0 version. (see below for link) That works for me, it does for the time being while we're all waiting for the (updated) tiger driver. good luck!
    -Lewey
    Specs of my G5:
    Dual 2GHz, 1GB RAM
    ATI Radeon 9650 XT 256MB
    Superdrive"

    I don't own this card but if anyone else that reported problems in tiger with later drivers finds this helps let me know.
    Update - I was a little skeptical at first but a reader said the above tip did help.

    (added 8/8/2005)
    "Hi - thanks for your continued Revolution 5.1 reports. Your site is an invaluable resource!
    I tried your reader Lewey's tip of replacing the driver with the original 1.0 version, found on the M-Audio site at this location http://www.m-audio.com/index.php?do=support.driverdownload&ID=454
    Praise the Lord, it works! Problems have disappeared. Sounds great, such a boost from the inbuilt audio!

    I remember when they updated that driver before to 1.1 and it sounded even better, though it doesn't work now, so I'll still be on the lookout for the eventual 10.4.2 driver update, hopefully before Christmas.

    (I asked Peter if there were any downsides to using the 1.0 driver-Mike)
    Hi Mike
    Small downside is that opening the control panel application and switching between functions gives a short cut-off and pop to currently playing sound. This is was corrected in the 1.1 driver, and a subtle refinement of the sound quality, but still, the 1.0 version functions OK in 10.4 and it's a relief to get my SoundSticks sounding great again.
    Cheers, Peter"


    (added 7/20/2005 - updated 7/21/2005)
    "I'm very disappointed with my M-Audio Revolution 5.1 under Tiger. (running 10.4.2?-Mike)
    The card will randomly drop audio, and hisses/pops/skips constantly. On many occasions, the only fix (if opening the control panel to reset the sound doesn't work) is to restart.

    Applications also seem to have to "catch" the card, or the audio will skip/pop/etc or simply not WORK.

    On iTunes, I constantly have to press play/pause to get the audio to work.

    It's really a crapshoot on my system as to whether or not I will get usable audio.. or if any at all.

    System:
    Dual 2.0 GHz G5 (new model), 1.5GB RAM
    Radeon 9800 Pro
    Generic Firewire 400 3-port PCI card
    AlchemyTV DVR PCI
    SATA 160GB Hard Drive

    Drivers:
    Version 1.5
    Driver Version 1.1.0
    -Stephen A.
    (he later wrote in reply to questions about driver/os versions, if other PCI cards affected this, etc.-Mike)
    I knew I left something out.. Mac OS X 10.4.2
    In the about box of the M-Audio Control Panel, it lists the Version as 1.5, and Driver Version as 1.1.0.

    The AlchemyTV DVR version is 2.2.1 as nothing above that seems to work well enough for me (the Miglia people are absolutely great about helping, and took my 2.4 [newest version] crash log and handed it to the programmers).

    The only card that seems to cause noticeable (ie, not random) interference with the M-Audio is the Firewire 400 card when copying a large file to my external HDD. It basically just slows the audio to a crawl while it skips and pops.

    I have, however, tried the M-Audio by itself and the problems still persist. I have also played the PCI slot shuffle, but it didn't help my problems at all.
    Hope this helps. "


    (added 7/20/2005)
    "PowerMac G4 MDD 1.25 Dually, 1.5 Gig RAM, OS 10.4.2, Nvidia GeForce 4600 TI 128 MB, M-Audio Revolution 5.1 PCI card
    Card worked well with Panther, since upgrading to Tiger audio from this card has been very flaky (on and off). I am using the latest driver from M-Audio version 1.1.0. (the report below mentioned driver 1.1.17 ?-Mike) Pulled PCI card from machine awaiting new drivers.
    I received the same response from M-Audio's tech support as Jerry (see earlier post below). Just bought a set of Logitech Z-5500D 5.1 speakers for my setup, hope the updated driver arrives soon.
    -Ronald
    (he later wrote)
    That is correct Mike.... The previous driver is 1.0.0.0 and is for 10.2.8 or higher according to their site. Driver 1.1.0.17 is the latest driver and is for 10.3.6 thru 10.3.8 and the one I am using. Sorry for leaving out the .17 on my driver version. "


    (added 7/20/2005)
    "I too am patiently waiting for a Tiger driver for my 5.1 Revolution card. I'm not impressed by M-Audio's statement that it is only after an OS is released that they can prepare a new driver; obviously that's absurd, as developer versions of the beta OS were released throughout the year before Tiger's release.

    Anyway, after 10.4 was released, I noticed the sound became distorted and weak. That's with driver 1.1.17 for OS 10.3.8, the last version of the OS they qualified it for. I'm using a dual 2.5 G5 machine. I use only analogue stereo output and bought the card for its high quality digital converters and a good quality headphone sound output. It was great... superb sound quality! Not now though. The last 2 months I've had to use the Mac's standard audio I/O sockets, not so bad actually but certainly not great.

    After removing the driver from my system with 10.4.1 because of the bad sound, I tried again with the new 10.4.2 version of the OS, and now the existing driver will not even install! (God knows what new buyers of the card think - especially as it's sold through the Apple Store!)

    I'm very disappointed with M-Audio's effort. I guess eventually there will be a driver for 10.4.2, I check every day online (gets boring), but what happens after 10.5.0, or even when 10.4.3 comes out?
    They are either short-staffed or incompetent; either way, it's not good enough from a top company in Mac audio equipment.
    Best regards, Peter "


    (added 7/19/2005)
    "Hi Mike, Just wonder if you could post my problems with my revolution 5.1 board. It seems not many people with Macs have them and since tiger with the garbled 5.1 audio, it remains useless for DVD playback. It still works great under panther and a friend's xp system. it would be nice to see if anyone else out there has issues with this card under tiger-Jerry.

    Update: 07-13-05 + 10.4.2
    I sent this a couple of days ago. Didn't see anything posted, as there are so many updates, only so much one person can do. Anyways I tried playing some 5.1/DTS discs today after upgrading to 10.4.2 and nothing has change. Also M-audio site hasn't changed either: no updates. Thanks
    (earlier comments on 10.4.1 follow)

    I thought I would pass along these frustrating problems with Revolution 5.1 card (v1.1 driver) under Tiger 10.4.1:
    Base machine:
    Machine Name: Power Mac G4
    Machine Model: PowerMac3,5
    CPU Type: PowerPC G4 (2.0)
    Number Of CPUs: 1
    CPU Speed: 733 MHz
    L2 Cache (per CPU): 256 KB
    Memory: 1.12 GB
    Bus Speed: 133 MHz
    Boot ROM Version: 4.2.1f2
    ATI Radeon 8500:
    Chipset Model: ATY,R200
    Type: Display
    Bus: AGP
    Slot: SLOT-1
    VRAM (Total): 64 MB
    Vendor: ATI (0x1002)
    Device ID: 0x514c
    Revision ID: 0x0000
    ROM Revision: 113-85710-227

    pci1412,3631:
    Type: Audio
    Bus: PCI
    Slot: SLOT-4
    Vendor ID: 0x1412
    Device ID: 0x1724
    Subsystem Vendor ID: 0x1412
    Subsystem ID: 0x3631
    Revision ID: 0x0001

    Problems: DVD Player: 4.6 & 4.6.1
    Panther Dolby 5.1 out: Normal
    Tiger - Dolby 5.1 out: Warbled and distorted audio
    I contacted M-Audio on April 27th 2005:
    Here is their response:

      " Tiger has not been released yet; we are always in the process of developing new drivers for M-Audio devices. However we cannot say exactly when a new driver will be released because of confidentiality issues"

    (mail to them on May 23th 2005:)
    Hello,
    Any ETA on the Revolution5.1/10.4.1 fix? As it is, the card is useless for 5.1 sound (the whole reason for it's existence). Thanks.
    Jerry
    On May 23, 2005, at 1:22 02PM, techsupt wrote:

      "Thank you for contacting M-Audio Tech Support.Sorry for the delay. We have released Tiger-compatible drivers for many of our audio and MIDI devices already, and drivers for the rest of our product line will be out ASAP. This is our top priority at the moment, however we cannot rush the testing process."

    (mail to them on June 6th 2005)
    Hello John,
    Any idea when a new driver will be released? I'll even test beta one, anything is better than the current one under 10.4.1
    Jerry
    techsupt wrote: June 7, 2005 1:17:06 PM PDT

      "Sorry for the delay. We have released Tiger-compatible drivers for many of our audio and MIDI devices already, and drivers for the rest of our product line will be out ASAP. This is our top priority at the moment, however we cannot rush the testing process."

    (Mail to them on June 18, 2005)
    Hi John,
    Just a thought: I have had the retail Tiger since May 2nd and the various developer's version many months before that (All didn't work with the Revolution 5.1 board) certainly plenty of time for QA to crank out a driver. It seems everywhere I read M-audio QA went down hill since the avid acquisition. So I thought why don't you folks swap a 7.1 board for my 5.1, as apparently you have drivers for although not without problems: http://www.xlr8yourmac.com/audio/revolution7.1_reports.html#reports
    So what do you think? A swap and than you don't have to hear from me about 5.1 drivers and all will be well?
    Jerry
    On Jun 24, 2005, at 3:48 58PM, techsupt wrote:

      " Hello Jerry --I have checked on this for you but we cannot offer you a trade like this. I understand your frustration, but we will get the driver out as soon as we can."

    (mail to them on July 5, 2005)
    Hello John,
    Any idea when a new driver will be released? I'll even test beta one, anything is better than the current one under 10.4.1
    Jerry

      " (July 7th reply)
      There is no beta driver, when the new driver is released it will be posted to the m-audio website"

    So as of 7/11/05 the Revolution 5.1 card does not work with the Apple's DVD player and M-Audio appears to have put this on low priority. It is quite silly of tech support to say there is no beta (meaning of course any public beta), so unless it is is still in Alpha state this simply isn't true. For owner's of older macs without 5.1 output (which is the majority of machines out there) this really looks bad. My take is if M-audio cannot produce a driver this long after 10.4's release (not to mentioned it never worked properly on any of the developer's releases) what could ever happen after the intel switch, where much more changes take place in the OS for Avid/M-audio products . Thanks and I would love to hear any feedback from other Tiger/Revolution 5.1 owners.
    Jerry "

    I welcome other revolution 5.1 card reports or tips (please include your mac model/OS version and driver version used in reports.) Thanks.


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