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d.4 Pro DJ Production Console
d.4 Pro 4-channel DJ Production Console
Appendix E: FireWire
System Requirements
These are the minimum requirements for your com-
puter system to use the d.4 Pro FireWire interface.
For the PC:
• Windows XP (service pack 2)
• Pentium 4 or Athlon XP processor
• 256 MB RAM
For the Mac:
• OS X (10.3.9 or higher)
• G4 processor
• 256 MB RAM
The internal FireWire interface will:
• Allow multiple streams of digital audio to be
sent bi-directionally between the d.4 Pro and a
Mac or PC computer.
• With all of the streaming choices available, it
is possible to make a true multitrack record-
ing of ALL the different inputs coming into the
mixer’s channels, as well as any audio coming
into either of the mic inputs, and keep all of it
separate for a later mixdown. In addition, with
the aux and main outputs also going to their
own tracks, you can have a completed main or
alternate mix go to the computer, ready for CD
burning or conversion to MP3s.
• Send MIDI continuous controller and note-on
messages to the host computer from the cross-
fader.
To Computer From
Input 1 PGM 1 L (Line/Phono, or Post-EQ)
Input 2 PGM 1 R (Line/Phono, or Post-EQ)
Input 3 PGM 2 L (Line/Phono, or Post-EQ)
Input 4 PGM 2 R (Line/Phono, or Post-EQ)
Input 5 PGM 3 L (Line/Phono, or Post-EQ)
Input 6 PGM 3 R (Line/Phono, or Post-EQ)
Input 7 PGM 4 L (Line/Phono, or Post-EQ)
Input 8 PGM 4 R (Line/Phono, or Post-EQ)
Input 9 MIC 1
Input 10 MIC 2
Input 11 AUX Send L
Input 12 AUX Send R
Input 13 MAIN Out L
Input 14 MAIN Out R
FireWire stream to computer
The following table shows the outputs to your com-
puter from the FireWire interface inside the d.4 Pro:
Each channel of analog audio from the d.4 Pro is
converted to digital signals by the FireWire interface’s
splendid A/D converters. (The block diagram on page 24
shows the location of the FireWire inputs and outputs.)
Program channel outputs
For the program channels, the point where the
FireWire is tapped off, varies with the position of the FW
out switch [7]. Refer to figure 1 opposite.
If an FW out switch is in the post-EQ position (out),
the computer receives the stereo program pair, post-
EQ, and pre-fader. This is a good position to record your
vinyl onto the computer, as the levels and EQ can be
adjusted for optimal recording levels. The source switch
[30] affects what is playing the program channel and
the FireWire output.
If an FW out switch is in the line/phono position (in),
the computer receives the stereo program pair, pre-EQ,
and pre-fader, independent of the position of the pro-
gram source switch [30].
Figure 1 on the next page shows a partial block
diagram of the signal flow when the switches are set like
this:
• FW Out set to line/phono
• Line/Phono switch set to phono
• Source Switch set to FireWire
With the switches set this way, the RIAA phono
preamplifier stage re-equalizes and boosts the phono-
level signals to line-level, and the routing through the
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