PROFESSIONAL AUDIO & SOUND
®
TM
DIGITAL MUSIC SERIES
DIGITAL MUSIC AMPLIFIERS
INSTALLATION AND WIRING
PROGRAM INPUT (2)
The PROGRAM input is provided for high level pro-
gram source. The output from a Satellite Receiver
Tuner, Tape Cassette Deck, CD Player or other high
level program source may be directly connected to
this input.
PROGRAM INPUT SENSITIVITY ATTENUATOR
The PROG Input is equipped with a Sensitivity
Attenuator that allows the interface of the PROG
Input with Devices having a wide range of Output
Levels.
TYPICAL OUTPUT LEVEL OF MUSIC DEVICES:
Satellite Receivers
= 1 to 5 Volt
Digital Tuners/Receivers = 100 to 300 Mv
CD Players/Changers
= 2 to 3 Volt
Tape Decks
= 500 to 700 Mv
By adjusting the PROG Input Sensitivity to the level
that matches the device used the correct interface
with the Amplifier is achieved resulting in lower over-
all distortion and better frequency response charac-
teristics.
STEREO SUMMING
Since most Music Source Devices provide a Stereo
Output the Amplifier is equipped with two Jacks for
the PROG Input (L and R). The two Inputs are inter-
nally buffered and electronically mixed to Mono. This
system ensures that the Music Device is properly
loaded and that the Stereo Signals are correctly
summed (L+R) to Mono without distortion.
CABLE
To connect the music source devices to the PROG
Input use two single conductor shielded audio cable
terminated in a single prong phono plug on both
ends.
SATELLITE RECEIVER
paso
TRACK
0 1
AM/FM TUNER
CD PLAYER
CD
TAPE DECK
MUSIC OUTPUT
L
L
R
R
L
INPUT 2
MIC/PROG
BALANCED
MUTE
MUTE
COM
G
HOT
ATTENUATOR
INPUT 2
PROG
R
R
L
INPUT 2
PROGRAM
UNBALANCED
Switch Settings
I
N
P
U
T
1
TEL
Prog
CD
Off
Off
Off
MIC
MIC
I
N
P
U
T
2
I
N
P
U
T
3
I
N
P
U
T
1
I
N
P
U
T
2
I
N
P
U
T
2
Z
O
N
E
1
Z
O
N
E
2
E
Q
L
I
N
K
Off
Vox
On
Mute
On
Vox
On
Aux
INPUT
3
INPUT
2
On
Switchset01
3015B Prog
Fig. 12 - Rear Panel PROG Input Diagram
INPUT 2 (PROGRAM)
PROGRAM INPUT MUTING
L
INPUT 2
MIC/PROG
BALANCED
MUTE
MUTE
COM
G
HOT
ATTENUATOR
INPUT 2
PROG
R
R
L
INPUT 2
PROGRAM
UNBALANCED
B A
LEVEL ADJUST
L
R
L
INPUT 2
MIC/PROG
BALANCED
MUTE
MUTE
COM
G
HOT
ATTENUATOR
INPUT 2
PROG
R
R
L
INPUT 2
PROGRAM
UNBALANCED
3015B Stersumm
MUSIC OUTPUT
Fig. 12B - Rear Panel PROG Input Sensitivity Attenuator
Fig. 12C - Rear Panel PROG Stereo Summing Inputs
MUTING - The PROGRAM Input can be Muted or
not when the VOX is activated by Paging from the
MIC Input (1) or the Phone Input when set as TEL.
The same occurs when the Direct Muting is applied.
For location and Setting of the VOX and MUTING
SWITCHES see the proper section in this manual.
PAGE 12
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
T3015/3030DMA
INPUT 2 SETTING AS A PROGRAM INPUT
SET INPUT 2 SWITCH TO
PROG
INPUT SWITCH SETTING
CAUTION:
TO PREVENT POSSIBLE DAMAGE TO
SPEAKERS OR THE AMPLIFIER ALL INPUT CONNEC-
TIONS MUST BE MADE WITH THE AMPLIFIER OFF
(POWER OFF).