Crossfire TEK50.4 - Monoblock Amplifier Operation; TEK400.1 Monoblock Specifics; Monoblock Load Requirements

MODELS
TEK35.4
TEK50.4
LOW IN
R
L
LEVEL
HPF FULL LPF
FREQ
LEVEL
FREQ
HPF FULL LPF
POWER
LOW IN
50Hz 150Hz
50Hz 150Hz
R
L
HIGH IN
HIGH IN
L R
L R
LOW IN
LOW IN
R
L
LEVEL
LEVEL
ON OFF
ON OFF
FREQ
FREQ
HPF FULL LPF
HPF FULL LPF
POWER
POWER
50Hz 150Hz
50Hz 150Hz
HIGH IN
HIGH IN
L R
L R
CROSSOVER
CROSSOVER
BOOST
BOOST
MODELS
TEK35.2
TEK50.2
TEK75.2
TEK100.2
TEK150.2
Crossover Selector Switch
HPF: Highpass Filter
FULL: Fullrange
LPF: Lowpass Filter
Crossover
Frequency
Selector
Front Crossover Selector
HPF: Highpass Filter
FULL: Fullrange
LPF: Lowpass Filter
Crossover
Frequency
Selector
Rear Crossover Selector
HPF: Highpass Filter
FULL: Fullrange
LPF: Lowpass Filter
Crossover
Frequency
Selector
CROSSOVER
LOW IN
LOW IN
R
L
LEVEL
LEVEL
ON OFF
ON OFF
FREQ
FREQ
HPF FULL LPF
HPF FULL LPF
POWER
POWER
50Hz 150Hz
50Hz 150Hz
HIGH IN
HIGH IN
L R
L R
CROSSOVER
CROSSOVER
BOOST
BOOST
MODELS
TEK35.2
TEK50.2
TEK75.2
TEK100.2
TEK150.2
Switchable +6dB
Boost at 45Hz
BOOST
OPERATION
The Crossfire TEK400.1 is a mono-block amplifier. Unlike other Crossfire TEK amplifiers, this amplifier operates as a single channel, therefore the amplifier cannot be
bridged. Do not be fooled by the two sets of speaker outputs. Two outputs are provided strictly for convenience and are paralleled internally on the circuit board of
the amplifier. This means that if both outputs are used with one driver each, the amplifier sees the same load as if the same two drivers are connected to only one
output terminal. See diagram below.
LOAD
The TEK400.1 will reach its potential output into a 2ohm load. However, the TEK400.1 requires a minimum impedance of 2 ohms to operate trouble free. Any
impedance lower than 2 ohms can send the amplifier into current protection and possibly damage the circuitry. Please use the chart on page 8 for furmulas to achieve
a 2ohm load.
TEK400.1 MONOBLOCK
TEK400.1 MONOBLOCK
1
2
FUSE
FUSE
+12V REM GND
POWER
SPEAKER
1
2
FUSEFUSE
+12V REM GND
POWER
SPEAKER
-
+
-
+
-
+
Single
speaker
operation
Two
speaker
operation
7