Results 1 to 10 of 10

Thread: Anyone here own a Presonus Audiobox USB?

  1. #1
    Join Date
    May 2000
    Location
    Royal Oak, MI, USA
    Age
    58
    Posts
    1,757
    Thanks
    0
    Thanked 5 Times in 4 Posts
    Rep Power
    7871769

    Anyone here own a Presonus Audiobox USB?

    Sign in to disable this ad
    I recently bought a Presonus Audiobox USB interface. Two inputs, which are a universal XLR / 1/4" type. I had planned on using it both with two microphones and also with a small 8 channel mixer, plugging the line level outputs of the mixer into the inputs of the interface to do some live 2 channel recording.

    Now that I've actually read the manual (note to self: always download and read the manual before buying) it seems to say that these inputs are for microphones or guitars ONLY, not line level devices such as mixers or keyboards. The specific text:

    Instrument Inputs (Channels 1 and 2). The TS connector on channels 1 and 2 are for
    use with an instrument (guitar, bass, etc.). When an instrument is plugged into the
    instrument input, the mic preamp is bypassed, and the AudioBox USB becomes an active
    instrument preamplifier.
    NOTE: Active instruments are those that have an internal preamp or a line level output.
    Active instruments should be plugged into a line input rather than into an instrument input.
    Plugging a line level source into the instrument inputs on the front of the AudioBox USB
    not only risks damage to these inputs but also results in a very loud and often distorted
    audio signal.
    (In other words, donít plug a line level source into the combo jacks of channel 1 or 2.)


    Needless to say this sucks, and it looks like I wasted some cash. I was wondering if anyone here had tried using a mixer or keyboard or other such device in their Audiobox USB?
    Computer High Priest

  2. #2
    Join Date
    May 2000
    Location
    Royal Oak, MI, USA
    Age
    58
    Posts
    1,757
    Thanks
    0
    Thanked 5 Times in 4 Posts
    Rep Power
    7871769
    No surprise, Guitar Center wont take the unit back, as it is a "non-returnable item". Bummer.... works great with mics for sure, but that's it. Not the unit I was led to believe. Any recommendations on a USB 2.0 interface that does BOTH 2 mics or 2 line inputs?
    Computer High Priest

  3. #3
    Join Date
    Apr 2003
    Location
    CT.
    Age
    52
    Posts
    642
    Thanks
    0
    Thanked 6 Times in 6 Posts
    Rep Power
    297212
    This might work for you, it should allow you to use your mixer's line outs into the mic inputs on the AudioBox.

    Whirlwind Direct2 | Sweetwater.com

  4. #4
    Join Date
    Feb 2012
    Posts
    14
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    that interface is strange. what if you had a mic that did not use phantom power? I have a few friends who use Presonus interfaces and love them and use them strictly as line level devices.

  5. #5
    Join Date
    May 2000
    Location
    Royal Oak, MI, USA
    Age
    58
    Posts
    1,757
    Thanks
    0
    Thanked 5 Times in 4 Posts
    Rep Power
    7871769
    Quote Originally Posted by KevWestbeats View Post
    that interface is strange. what if you had a mic that did not use phantom power? I have a few friends who use Presonus interfaces and love them and use them strictly as line level devices.
    I've been using it with two Shure SM-57 mics, that don't require Phantom power. It works fine. Phantom power is a seperate switch that can be turned on or off.

    My original post could have been worded better. The manual for the Presonus flatly says it is not for use with Line Level devices, and that it will distort - or damage the unit - if you do. When I look at Guitar Center's page I see several comments from users complaining about the unit distorting. My guess is that plenty of people were also told by G.C. salesmen that it worked at line level and they never bothered to read the manual. So my question was to see if anyone who owned one had actually tried it at line level and got it to work OK. Now that I know I can't return the unit, I'll probably try that experiment myself.
    Computer High Priest

  6. #6
    Join Date
    May 2000
    Location
    Royal Oak, MI, USA
    Age
    58
    Posts
    1,757
    Thanks
    0
    Thanked 5 Times in 4 Posts
    Rep Power
    7871769
    Quote Originally Posted by Strryder View Post
    This might work for you, it should allow you to use your mixer's line outs into the mic inputs on the AudioBox.

    Whirlwind Direct2 | Sweetwater.com
    Thanks for the suggestion, that does indeed look like it would work. But I hate to throw another $120 at the problem, I don't want to get stuck again if it doesn't work. I'll have to check and see if I can return it first.

    If I had not been a dumbass and had done more research I might have gone with the Alesis 102 Express or the Tascam US-144, both of which seem to have the ability to switch between line and mic levels.
    Computer High Priest

  7. #7
    Join Date
    Jan 2006
    Location
    Fremantle, Australia
    Age
    60
    Posts
    5,268
    Thanks
    0
    Thanked 143 Times in 126 Posts
    Rep Power
    11360171
    Just connect the mixer line outs to the mic inputs using XLR plugs. Make sure the mic pre level is turned down and watch the line output level of the mixer is not too high, if fact you should be able to calibrate the input using the mic pre volume knobs on the front.

    Also ensure that the phantom is never on so that the fantom does not damage the line outs of the mixer.

    This is not perfect but it will work and if you watch the levels there will be no distortion or damage caused.

    Alan.

  8. #8
    Join Date
    Aug 2005
    Location
    U.K.
    Age
    32
    Posts
    18,161
    Thanks
    937
    Thanked 788 Times in 701 Posts
    Rep Power
    1000000
    Quote Originally Posted by witzendoz View Post
    Just connect the mixer line outs to the mic inputs using XLR plugs. Make sure the mic pre level is turned down and watch the line output level of the mixer is not too high, if fact you should be able to calibrate the input using the mic pre volume knobs on the front.

    Also ensure that the phantom is never on so that the fantom does not damage the line outs of the mixer.

    This is not perfect but it will work and if you watch the levels there will be no distortion or damage caused.

    Alan.
    I wouldn't recommend this. Level is one thing and you might get close but impedance is another. The line out and mic in just aren't gonna work (properly) without some kind of transformation.

    I know Alan mentioned checking phantom power but all it takes is one mistake and you've potentially ballsed all your gear.
    Quote Originally Posted by Grawlf View Post
    That's a tad too much terminology. What do you mean by 'mix'?
    Quote Originally Posted by Steenamaroo View Post
    No VST can emulate that smell.

  9. #9
    Join Date
    May 2011
    Location
    Leeds, England
    Age
    25
    Posts
    462
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    1245767
    Could get yourself a DI box, which can turn line level or instrument level into mic level, then just plug into your XLR mic inputs on the interface. You can go as cheap as you need with those things too. I have a cheap £30 thing in case I ever need it.
    3.8GHz i5 760/8GB RAM/Samsung 1TB Spinpoint F3s.
    Shine WEB45, Vintage Metal Axxe Wraith, Stagg, Aria Pro II JS, Yamaha PSR-275, EKO Acoustic.
    GK 1001RB-II.
    Studio Projects B1.
    Firestudio Project.
    Studio One, Reaper.
    Metal, Jazz, Ambient, Trance.

  10. #10
    Join Date
    Dec 2004
    Location
    Sunnyvale, CA
    Age
    41
    Posts
    5,743
    Thanks
    0
    Thanked 5 Times in 5 Posts
    Rep Power
    3408649
    Quote Originally Posted by Steenamaroo View Post
    I wouldn't recommend this. Level is one thing and you might get close but impedance is another. The line out and mic in just aren't gonna work (properly) without some kind of transformation.

    I know Alan mentioned checking phantom power but all it takes is one mistake and you've potentially ballsed all your gear.
    An instrument preamp is a relatively high impedance input, so you should be fine running a line output into it once you match the levels. (A line input usually is somewhere around 10k input impedance; an instrument pre can be anywhere from 100k to two or three megohms. Translation: you won't load down the output too much.) For this reason, I would use the instrument input coupled with a pad (which is basically just a pair of resistors wired such that the signal splits two ways, with one resistor sending the output to ground and the other resistor sending the output towards your audio interface.

    http://www.uneeda-audio.com/pads/ tells how to design a pad circuit. It's pretty trivial and consists of about a dollar worth of parts, not including the cost of the cable that you have to cut in half.
    Quote Originally Posted by Obi-Wan
    If you mod me down, I will only grow stronger.

  11. The Following User Says Thank You to dgatwood For This Useful Post:


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. For Sales: PreSonus AudioBox USB
    By sajs in forum Free Ads for Music/Recording Equipment
    Replies: 6
    Last Post: 01-15-2012, 11:08
  2. Tascam us-122mkll or Presonus Audiobox USB?
    By Blueeyedgirl in forum Digital Recording & Computers
    Replies: 1
    Last Post: 09-26-2011, 07:35
  3. presonus audiobox usb or m-audio fasttrack pro
    By willydoit in forum Digital Recording & Computers
    Replies: 2
    Last Post: 09-15-2011, 01:17
  4. Presonus Audiobox USB + Windows 7 x64?
    By mikeramey in forum Digital Recording & Computers
    Replies: 1
    Last Post: 12-09-2010, 11:16
  5. Static in my recordings [Presonus USB Audiobox]
    By Dorian Mode in forum Recording Techniques
    Replies: 6
    Last Post: 11-25-2008, 13:25

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •