7
P O W E R
P O W E R
P R O T E C T
P R O T E C T
L P F
L P F
4 0 - 2 4 0
4 0 - 2 4 0
B A S S - B O O S T
B A S S - B O O S T
O N O F F
O N O F F
2.2 Operation- Built-in Crossovers
CROSSOVER FILTER SELECTION
The
TA
TA
series amplifiers have built-in low-pass and
high-pass crossover filters for bi-amplifying your
system. Select
" LPF, FULL or HPF"
by moving
the position of the slide switch for each pair of
channels.
"LPF"
selects the low pass filter.
"HPF"
selects the high pass filter. Selecting
"FULL"
defeats the crossover
functions
FREQUENCY ADJUSTMENT
After selecting the crossover function
,
adjust the low pass or
high pass frequency control with a small screwdriver through
the opening marked
“LP/FREQ.” or "HP/FREQ."
. Turn
CW
to set to a higher frequency,
CCW
to set to a lower
frequency.
Turning the
“BASS BOOST”
switch to
“ON”
increases the level
of frequencies around 45Hz by 12dB.
2.3 Operation- Protection Circuits and
L.E.D. Indicators
“POWER.” L.E.D. INDICATOR-
Provides a visual indication
that the amplifier is turned on.
“PROTECT” L.E.D. INDICATOR-
Provides a visual
indication that a problem exists and the protection circuitry has
protected the amplifier by shutting it down. Turn the system
off and correct the problem before turning the system on.
THERMAL PROTECTION-
The amplifier will shut down if its
temperature exceeds a safe operating level. The amplifier will remain off
until it cools to a safe operating temperature. Exercise care, the exterior of
the amplifier may get uncomfortably hot to the touch before shutting
down.
X - O V E R
X - O V E R
L P F - F U L L - H P F
L P F - F U L L - H P F
8
F U S E
F U S E
15 A
15 A
15A
OVERLOAD AND SHORT CIRCUIT PROTECTION-
The amplifier
will shut down if a short circuit condition exists, or if electrical current
demands exceed safe levels.
FUSE PROTECTION-
A blown fuse indicates a problem that
should be corrected before the fuse is replaced. Always replace
with the same value fuse. Never substitute a larger value fuse.
2.4 Operation- Location of Terminals,
Controls and LED indicators
TA4600, TA4320
TA4600, TA4320
1. RCA input jacks 2. High level input 3. Input level adjust
4. Crossover select 5. Low pass freq. 6. High pass freq.
7. Bass boost 8. Mode 9. Power L.E.D.
10. Protection L.E.D.
1. Power terminals 2. Fuse(s) 3. Speaker terminals
A / B C H A N N E L S
I N P U T
L E V E L
H P F
L P F
M I N
M A X
4 0
2 4 0
40
2 4 0
A
B
X - O V E R
B A S S - B O O S T
M O D E
L P F
FULL
H P F
POWER
O N
O F F
H I G H L E V E L
2 C H
4 C H
3 C H
B A S S - B O O S T
O N
O F F
4 0
2 4 0
L P F
H P F
4 0
2 4 0
X - O V E R
L P F
F U L L
H P F
L E V E L
M I N
M A X
I N P U T
P R O T E C T
C
D
C / D C H A N N E L
4
7
8
1
2
3
5
6
9
10
5
6
3
1
7
4
F U S E
3 0 A
3 0 A
P O W E R
S P E A K E R
S P E A K E R
B R I D G E D
B R I D G E D
+ 1 2 V
R M T
GND
( A + )
( A- )
( B - )
( B + )
( + )
( - )
( C + )
( C - )
( D- )
( D + )
( + )
( - )
1
3
3
2