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Total Posts: 47
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Comments: 20

SC-1 Mic Preamp NOW ON SALE!!!!

After many months of development, testing, troubleshooting, frustration, problems, and accomplishments... the SC-1 mic preamp kit, PSU-1848 power supply kit and power transformer kits are now available for sale!

Click here to ORDER

Photo of a finished SC-1 mic preamp kit!  (Note: XLR jacks and wires shown on picture not included in the kit.)

Features:
- Low-Noise, transformerless, High-Quality Mic Preamp
- All solid-state design, using chipsets from THAT Corp and Burr-Brown
- Soft-start, slow ramp-on +48V phantom power
- Crystal clear Red LED indicator for phantom power
- Electronically balanced input and output stages
- 12-position Grayhill gain selector switch
- Gain range from +6 to +72dB, in 6dB increments
- Input RFI protection
- Input clamping protection
- Output surge protection circuit
- Output RFI protection
... read more...

Download PDF file of Assembly Guide/Kit Instructions

Related products like the PSU-1848 Power Supply Kit, Power Transformer Kit, Power Control Kit are also available for sale. Click here.

 Sunday, January 07, 2007
Sunday, January 07, 2007 9:16:19 PM (Central Standard Time, UTC-06:00) (  |  |  )
I noticed a lot of people asking this question "How do I setup MIDI on my Mac OSX computer (Macbook, Mac Pro, or PowerPC)" so I hope to write a simple and short tutorial for this.

This procedure or steps has been tested on OSX running on PowerPC and Intel chips. It has worked from a simple 2x2 interface to a full-blown 8x8 midi router/merger interface.

1. Connect your midi interface to your Mac computer. Most probably, this will be done via USB. Some models are connected via firewire, but usually, these are combo units. i.e. audio interface and midi interface.

If you need to install drivers for your midi device, go ahead and install it and follow the manufacturer's direction. Depending on the manufacturer, it could be a simple click on a Setup program, or manually copying files to your hard drive.

2. Open up Applications > Utilities




3. Click on Audio Midi Setup.



4. Click on Midi Devices



5. At this point, if the device driver was installed successfully, (and the device is powered on), you will see it represented on your Audio Midi Setup screen.  You can change the icon representation by double-clicking on the device, and selecting a photo from the list of options provided.

Note: If you want "custom" icons for your Audio Midi Setup, I'll show that to you on another lesson.



On the above screenshot, you can see my Edirol 8x8 midi interface, and my MOTU 828mk2 audio/midi interface. For this setup, we'll just the midi ports on the Edirol 8x8 unit.

Click on "Add Device"



A new icon appears on the workspace.


You'll notice there are 2 arrows on the device.  These represents the MIDI IN and OUT jacks or ports.



The "RULE" is, the MIDI OUT from a device goes to the MIDI IN of another device. 

MIDI OUT does NOT go to the MIDI OUT of another device. Don't make this common mistake.

The first thing we're adding is our midi controller.  So let's change the label from "new external device" to "My MIDI Controller" or "My keyboards" or whatever you want.

Double-click on the icon. A new window pops-up.



So just change the Device Name, and if you want, you may also type in the "Manufacturer" name and "Model number" or select it from the lis. You may also select a different icon. This is what our icon now looks like.


Next, we need to connect the MIDI OUT of "My Keyboard" to the MIDI IN of the Midi interface (in this case, my Edirol UM-880). The UM-880 is an 8x8 interface, so you'll see 8 pairs of MIDI IN/OUT ports.

I want to connect my keyboard controller to the first port, so I need to connect it to the first port on the diagram.

On this diagram, you can see that I connected the MIDI OUT of the keyboard controller to the MIDI IN of the Edirol UM-880.

Just place your mouse on the arrow, click, and drag the mouse. You'd see a "flexible wire" that you can move around and connect to other midi devices.


Now, let's do the same for the MIDI OUT of the Edirol UM-880 going to the MIDI IN of the keyboard.




And we're done! 

Good... but I also have other midi devices. I have a Roland XV-5080 synth, and an AKAI S6000 sampler, and a Novation analog synth,  so let's connect them all using the same procedures I outlined above.

So you click on "Add Device", then enter the device name, manufacturer, model #, change the icon, and wire the MIDI IN and OUT wires to the midi interface.

And here's the finished setup.



You probably noticed something odd. The USB Trigger Finger is showing as "faded." Why?

At one time, I had this device connected to my computer. But since it's not connected when I took the screenshots, it's showing "Grayed out" because OSX could not find the device.

An interesting icon is the Network Icon. 

Did you know that you can setup different computers and hook them up using MIDI over LAN? Click here for detailed instructions.


Friday, March 14, 2008 12:20:06 PM (Central Standard Time, UTC-06:00)
Thank you very much!
64er
Monday, March 16, 2009 11:26:46 AM (Central Standard Time, UTC-06:00)
Hi, I've got an UM 880 connected to my Mac book pro. It works well and I can use midi with no problem. BUT, as soon as I connect my UM880 to the usb port, it makes some uggly noises in the audio output !!! Even if the midi interface is truned off! Any idea where this can come from and how to get ride of it???
Eric
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