KV2 Audio JKP - Manual (Page 10)

GND
RC
GND
LIFT
LINE OUT MONITOR OUT
PARALLEL INPUT
PHANTOM
THROUGH
JKP
JKP - Passive DI BOX -
Transformer balanced
Features
10
S P L I T T E R
M I C R O P H O N E
M A D E I N C Z E C H R E P U B L I C
JKP Block diagram
JKP - Passive DI BOX - Transformer Balanced
The JKP is a universal passive DI box with low output impedance. The JKP features
one XLR input and two 1/4” jack inputs in parallel. The JKP is dedicated for multiple
instruments connection such as keyboards, guitars or instrument amplifiers
output conditioning. The JKP also features phantom power supply transmission
for condenser microphone connection and output signal conditioning.
1. Phantom Power Through
The JKP DOES NOT REQUIRE PHANTOM POWER TO OPERATE. When using a
condenser microphone that requires a phantom power from the mixing desk, turn
the PHANTOM THROUGH switch selector to the ON position and the RATIO switch
selector to the 1:4 position, (so that both switch selectors are in the top position).
In position 1:2, no phantom power will be passed through the unit to the
microphone.
2. Monitor and Line Outputs
The symmetrical LINE OUT output works with an impedance of 100Ω and with a
ratio of 1:2 or 1:4. The adjacent MONITOR OUT output has an output impedance of
600Ω and a level 6dB higher than the LINE OUT output. The ratio of the monitor
output is half that of the line output. (1:2 LINE = 1:1 MONITOR OUTPUT)
3. XLR and Jack Inputs
The JKP features two inputs with the XLR and 1/4” jack connector
connected in parallel. Both outputs are connected symmetrically.
When using a mono jack, the relevant input is switched automatically
into the asymmetrical mode. To split a microphone signal to different
sources simply plug it into the XLR input. The JKP has the ability to
send high quality microphone signal long distances (Up to 300m).
4. RATIO Switch Selector 1:2 / 1:4
This is intended for changing the voltage and impedance ratio. For
example, a condenser microphone's impedance can be decreased 16
times (1:4 position) which will improve the sound quality and
capability of the microphone to drive long cables. The 1:2 position can
also be used to improve the sound quality on dynamic microphones.
Both inputs can be disconnected from the ground. The 1:4 ratio is for
use with high impedance sources and the 1:2 ratio is for lower
impedance sources.
5. GND Ground Switch Selectors
This ground-lift switch breaks the ground between the input & the
output to eliminate hum and noise caused by ground loops.
The GND position - the grounds for the input and output are
interconnected. It is used if the signal source is not grounded.
The LIFT position - the grounds for the input and the output are disconnected.
It is used if the signal source is grounded. Interruption of the ground loop.
The RC position - the grounds for the input and the output are interconnected via a parallel RC combination.
It is used to suppress static disturbance.
JKP - FRONT PANEL
JKP - REAR PANEL
JKP, PASSIVE DI BOX
Product number:
KVV 987 201
3 3 4 1
5 5 2 2
2
3
1
2
3
1
LINE OUT
LOW Z, 100Ω INPUT
XLR / JACK 1/4
COMBINED
PHANTOM THROUGH
2
3
1
MONITOR OUT
600Ω
RATIO
1:2
1:4
RC
LIFT
GND
GND
PARALLEL INPUT
JACK 1/4
RC
LIFT
GND