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Connecting GuitarPort to an iMac
by scottymalotty2 on 2009-08-11 12:05:47.6750


I have recently changed from being a PC user to buying a new iMac. I wanted to use my guitarport and gearbox software on my new iMac but although it installs fine and appears to be working I get no sound when I plug my guitar in and play.

On my old Dell PC I had the guitar connected to the USB and then the R and L connectors hooked into the speaker system. On iMac I can see no way of connecting these cables to it. I then thought I would use the single black mini-jack cable between the guitarport and the mac. I changed the settings on the iMac to make the input and output use the guitarport and not the internal iMac defaults. Still no sound. Am I missing something?

The GuitarPort light is green it says its connected etc and GuitarPort and Line6 Monkey can see it...what am I missing?

All the drivers and compatibilities are fine and details of the iMac are listed below.

Help, I love my new iMac but I can't live without my Gearbox!!

Thanks for any help.



  Model Name: iMac

  Model Identifier: iMac9,1

  Processor Name: Intel Core 2 Duo

  Processor Speed: 2.93 GHz

  Number Of Processors: 1

  Total Number Of Cores: 2

  L2 Cache: 6 MB

  Memory: 4 GB

  Bus Speed: 1.07 GHz

Re: Connecting GuitarPort to an iMac
by ChaChing on 2009-08-12 12:17:11.8890


First, remember that the GuitarPort is now your sound card if the drivers are installed correctly, so all audio outputs from there, not your iMac's sound card/speakers. For this reason you must connect your monitors directly to it's outputs, whether they are phones or other speakers.

With this being the case, you will not easily be able to use the iMac's built in speakers for the GuitarPort since those are hardwired to your iMac's sound card - you will not be able to disconnect this and connect to the GuitarPort.

So you will need to get some other monitors - you should be able to use the same stereo system you used on the PC (if you have it) or can use computer speakers, a guitar amp (with the right adapter), etc.



Re: Connecting GuitarPort to an iMac
by scottymalotty2 on 2009-08-13 13:51:13.9490


Many thanks for you response. I guess I was just being dumb and hoped my iMac would just work with the GuitarPort plugged in (duh). I have ordered my external JBL speakers from amazon who have promised they will be here tomorrow.

So just to be clear I will connect the speakers to the GuitarPort as this will now be the sound card of the iMac once I change the Input and Output settings in the system Preferences?



Re: Connecting GuitarPort to an iMac
by scottymalotty2 on 2009-08-14 10:20:43.0840

Hi Line6Sach,

I am still stuck...I have my new Karman / Kardon powered speakers - SoundStick II's. Very nice.

They have a single cable going from the subwoofer to the headphone input of the iMac.

What do I plug into the GuitarPort besides the USB cable? I have tried taking the cable from the back of the iMac and plugging it into the headphone jack at the back of the GP but still no sound. I have changed the System Pref to use the GP as both input and output.

Any help/diagrams most welcome!!



Re: Connecting GuitarPort to an iMac
by xdirtnapx on 2009-08-14 14:58:27.9840

You have to plug the speakers DIRECTLY to the headphone OUT or the line OUT on the GUITAR-PORT.

Re: Connecting GuitarPort to an iMac
by scottymalotty2 on 2009-08-15 07:15:38.7120

Hi xdirtnapx,

Ok. So I plugged the cable coming from the subwoofer of the SoundSticks into the head phone jack on the back of the GP. I changed the System Preferences, even installed a new driver that line6Monkey had alerted me to. Re-started the iMac and.....still no sound. (

I can see when I strum the guitar that the Gearbox dials move so the input appears to be working fine. Do I need a cable from the GP "In" socket into the iMac also?

I have attached some pictures to show the connections I have made.

Any help most appreciated.



Re: Connecting GuitarPort to an iMac
by scottymalotty2 on 2009-08-15 08:16:35.5290

Pictures of GuitarPort and connections.


Back of GuitarPort showing USB connection and cable from speaker into headphone Jack


Harman / Kardon Subwoofer


Back of iMac showing connections


Gearbox running and connected to GuitarPort


System Preferences changed to Guitarport


Line6 Monkey showing driver status


Line6 Monkey compatibility check


Still not working!! Aaargh!!!! 

Re: Connecting GuitarPort to an iMac
by scottymalotty2 on 2009-08-25 00:00:41.1940


Any further thoughts on this from anyone? I am still not able to get any sound out of my Guitarport. Since this post I have linked my PODXT Live to the iMac, (with the sound coming out of my guitar amp), and I have been able to edit tones and make adjustments via the Line6 Edit and Gearbox software.

But I do miss my GuitarPort as I use it for general jamming along or when I am teaching guitar.



Re: Connecting GuitarPort to an iMac
by scottymalotty2 on 2009-08-31 15:09:28.1380

Ok I fixed it...after a visit to Maplin I tried one last thing. I bought a Stereo 3.5mm Jack to Twin Phono Lead.

I also bought a male-to-male connector called a Stereo coupler which allowed me to connect the 3.5mm jack from the Subwoofer that went into the iMac into this connector with the other side coming from the GuitarPort...viola it works!!

So I guess the mistake I made was when switching from the PC I had these cables connected to the GuitarPort, but when I re-assembled the Dell PC and reconnected everything I connected these back to the DELL'S SOUND CARD whereas before they connected to the GuitarPort. As I was explaining this to the dude in Maplin I realised my mistake.

Anyway all working now and many thanks for your help on this.



Re: Connecting GuitarPort to an iMac
by keeganreed on 2012-09-07 17:13:25.0210

Is Guitarport compatable with Reason 6?

The information above may not be current, and you should direct questions to the current forum or review the manual.