Low pass filter front panel (mono output)
Circuit board size: 168*50MM
Reverse height of the circuit: 10MM
Front height of the circuit: 35MM (installation of parallel surface 10MM)
Working voltage: DC+/-12V---+/-15V (DC plus minus 12 volts - DC plus 15 volts)
Low pass frequency: 5-150Hz
Input mode: high voltage input of external connection block, input of lotus block circuit, balanced transmission.
Enter (only one of its input modes)
Low pass output mode: line output and balanced output.
VR2 total volume adjustment.
VR1 frequency division point adjustment, upper frequency adjustable button 35-150Hz, used to match the lower limit frequency of the main box.
SW SPOT phase adjustment, positive phase 0 degree and reverse 180 degree switch, convenient to be consistent with the main box phase, otherwise the bass will be weakened.
IN is a pair of lotus receptacles for low level input, suitable for pre signal input, and other heavy bass in the channel.
Input (with independent SUB bass output, just insert one L or R).
OUT is a pair of lotus receptacles for low level output. Its function is to separate signals above 100Hz from the source signal.
This output port can be connected to other power amplifier input terminals as the main box to make the above 100Hz sound, and the J2 port of this board outputs the bass signal.
SP1 (SPEAKER LEVEL IN) high level input Red + black, two pairs of terminals are left and right high level input (main power amplifier).
The output of the horn is high level signal, which can facilitate the output of the power amplifier without independent bass signal, and output the output to this port.
Easy to output bass
DIY(1)
Please read the instructions carefully and mark the connection according to the above illustration.
Note: + output refers to the signal in phase output, the output is the signal inverting output, (the output signal is only connected to it.
One phase to the power amplifier panel, the phase can be adjusted by PHASE.
The ground is the common end (the power input point, the signal output point to one point).