2
OPERATION
PrecisionPower's DAC-348 processes the digital signal directly from
the CD player, changer or other digital source. All digital to analog
conversion as well as the subsequent filtering and analog treatment
of the signal by the stock source unit is replaced by the superior digital
signal processing, digital to analog conversion and fully discrete Class
A analog circuitry of the
DAC-348.
Because most digital head units are in fact combined with analog AM/
FM and Cassette players,
PrecisionPower engineers have included
analog inputs as well as a Smart Input Selector that monitors the
Digital inputs and automatically chooses the appropriate source. To
take advantage of this feature you must connect both the Digital
(coaxial or optical) and the analog (RCA) outputs to the
DAC-348.
As you have now bypassed the stock circuitry, the volume control on
your head unit will no longer affect the digital signal. You will need to
use a preamp or line driver (such as the
PAR-245) as the master
volume control for your system. Refer to the diagram below.
System Diagram
PAR-245
Preamp/Equalizer
Rear Output
Front Output
Source Unit
POWER
CLASS
™
Amplifier
Volume
Fader
Defeat
Sub
Low
Low-Mid
High-Mid
Treble
PAR-245
Power
In-Clip
+
+
+
+
+
R
F
Precision
Power
PAR-245
Made in USA
Power
LED Select
Input
Output
Output
Rear
Front
R
L
Input Sensitivity
1
3
2
4
Sub
Low
Low-Mid
Treble
Frequency Adjust
High-Mid
R
L
R
L
DAC-348
Digital to Analog
Convertor
eject
VOLUME
BASS
TREBLE
RIGHT
LEFT
BALANCE
TRACK
REVERSE
FOWARD
1
2
3
4
8
7
6
5
PPI
MAR
KET
ING
DPT
Trk 1
Analog RCA
Digital
Coaxial RCA
Or Optical
BACK TO CONTENTS
