Owner manual

3 - PCIe Card & Interfaces
The MicroDock
E-MU PCIe Digital Audio Systems 25
Rear Panel Connections
EDI
In
1L
1R
2L
2R
3L
3R
2L 2R
Out
1L
1R
Phono
Gnd
2L
2R
1
2
Out
48
VDC
+
-
MIDI Cable
3
4 Balanced Line Level Inputs
(configured as 2 stereo pairs)
Turntable Inputs
(tied to line input 2)
Turntable
Ground
Alternate Outputs6 Balanced Line Level Outputs
(configured as 3 stereo pairs)
MIDI Port
Connector
48 Volt DC
Power Input
Connect to
E-MU 1010 PCI
e Card
(same as outputs 1-3)
Line Level Analog Inputs
4 balanced 24-bit, line-level, analog inputs are provided (1L-1R, 2L-2R). These can be
used to input any line level signal from keyboards, CD-players, cassette decks, etc. The
analog inputs are assigned to mixer strips in the mixer application. The line level inputs
can be set to accommodate the consumer -10dBV standard, or the pro audio +4 dBu
standard in the I/O screen of the Session Settings dialog box. See “I/O Settings”.
The maximum input level is 18dBV (=20.2dBu).
Either TRS balanced or TS unbalanced cables can be used. The line-level inputs are all
servo-balanced, enabling them to convert unbalanced signals to balanced signals
internally to reduce noise. See page 115
for additional information about unbalanced
cables and connectors.
Phono Inputs & Ground Lug
 Important!
It’s a good idea to MUTE
the Dock In strip 2L/2R in
the PatchMix DSP mixer if
nothing is plugged in to
these jacks. The turntable
preamp has a very high
gain (60dB) and can add
extra noise to your mix/
monitor bus.
The RCA Phono inputs feed an RIAA equalized preamp designed for moving magnet
type phono cartridges with 60 dB of gain. Connect the ground lead from your turntable
to the ground lug to prevent hum.
The phono inputs SHARE line level inputs 2L and 2R. Inserting a plug into Line Input 2
disconnects the turntable preamp from that channel. Do NOT leave your turntable
connected when using inputs 2L and 2R, since this can cause a ground loop.
Important: Do NOT plug in line level signals to the turntable inputs. The turntable
inputs are designed to accept the extremely low-level signal from a phonograph
cartridge. Use RCA to 1/4” adapters to connect line level signals to the line level analog
inputs.
Line Level Analog Outputs
 Balanced Cables:
You should ONLY use
balanced (TRS) cables if
BOTH pieces of
equipment use balanced
connections. Connecting
balanced cables between
balanced outputs and
unbalanced inputs can
actually increase noise
and introduce hum.
Six balanced 24-bit, line-level, analog outputs are provided (1-3). Output pair 1 is
designated as the Monitor Output and is fed by the monitor bus of the PatchMix DSP
mixer application. We suggest that you plug your speakers in here. Special anti-pop
circuitry mutes the analog outputs when power is turned on or off.
Like the analog line inputs, either TRS balanced or TS unbalanced cables can be used.
Balanced cables provide better noise immunity and +6dB higher signal level. The
output line level can be set to accommodate the consumer -10dBV standard, or the pro
audio +4 dBu standard in the I/O screen of the Session Settings dialog box. See “I/O
Settings”.
The maximum input and output line levels are matched when the input and output
settings are set to the same mode (pro or consumer) in the I/O preferences screen.