Kicker ZXSUM8 User Manual

LIVIN’ LOUD

ZXSUM8

SUMMING INTERFACE

for OEM Audio Integration

English Version

Versión Español

Interfaz Sumadora para integración de audio OEM

Deutsche Version

Summing Mixer für OEM-Audiointegration

Version Francaise

Interface Sommateur pour intégration audio du
fabricant de l’équipement d’origine

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ZXSUM8 SUMMING INTERFACE
Owner’s Manual

Authorized KICKER Dealer:

Purchase Date:

The ZXSUM8 is a unique interface with the ability to sum (or mix) multiple high-level/speaker-level signals together
to a single, low-level RCA output. The ZXSUM8 greatly simplifi es upgrading or adding an amplifi er (or amplifi ers)
to your factory source unit. Channels 1–4 can be independently switched internally to function as stereo line
output converters (LOCs) instead of the summing function.

Features

• 4 stereo speaker-level inputs

• 4 line-level stereo RCA outputs

• 1 stereo RCA aux-input

• Balance levels from multiple speaker-level sources

• Sums up to four speaker-level stereo pairs down to a single stereo RCA low-level output

• Each stereo channel is capable of both summing and line-output conversion; switched internally

• Integrates portable media direct to your amp using aux-in and level control

PERFORMANCE

Max Voltage In 40V RMS

Max Aux-In Voltage 40V RMS

Max Voltage Out (Channel 1–3) 9V RMS

Max Voltage Out (Channel 4) 6V RMS

Signal-to-Noise Ratio (Channel 1–3) 90dB (ref. 1V)

Signal-to-Noise Ratio (Channel 4) 90dB (ref. 1V < 200Hz)

Remote Attenuation Range 0dB to -27dB

Frequency Response +0 / -1 20Hz–22kHz

Gain Range (Channel 1, 2, 3, 4) -30dB to +4dB

Gain Range (Aux-In) -65dB to +18dB

Fuse 2 Amperes

Width 10-1/2” (265mm)

Depth 5-3/4” (146mm)

Height 1-3/8” (35mm)

2

ZXSUM8

Pro Tip: To get the best
performance from your new
KICKER gear, use genuine
KICKER accessories and
wiring.

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ZXSUM8 FUNCTIONAL EXAMPLE

Factory source unit speaker outputs [frequency response]*

SUB Channel

KICKER ZXSUM8

GND

+12V

REMOTE IN

REMOTE OUT

POWER MAXIMUM CONNECTED

MID Channel TWEETER Channel

– + – +

– + – +

– + – +

RIGHT LEFT

CHANNEL 3 INPUT

CHANNEL 3 LEVEL

CONNECTED
TO CHANNEL 1

– + – +

CHANNEL 4

RIGHT LEFT

RIGHT LEFT

CHANNEL 2 INPUT

CHANNEL 2 LEVEL

CONNECTED

TO CHANNEL 1

CH2

R L

REMOTE

CHANNEL 1 INPUT

AUX LEVEL

CHANNEL 1 LEVEL

CH1

AUX

R L

R L

2A FUSE

RIGHT LEFT

CHANNEL 4 INPUT

CHANNEL 4 LEVEL

TO CHANNEL 1

CH4

CH3

R L

R L

Summed & Balanced
Low-Level Output

AMPLIFIER

* Your source unit may have similar, but not totally identical, performance.

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CONFIGURATION

Internal Mode Switches: Change the mode of channels 2–4 between summing plus line-output conversion
(LOC) and line-output-conversion-only by fl ipping the internal switches, accessible by removing the cover of the
ZXSUM8.

Use LOC-ONLY mode to convert a channel’s input from high-level (speaker-level) to a low-level signal suitable for
connection to an amplifi er.

Use SUM+LOC mode to mix the channel in question with Channel 1. The mixed signal appears on the Channel
1 output at low-level suitable for connection to an amplifi er. The channel’s original signal is also converted to low­level then passed through to its corresponding output.

inputs

CH4 CH3 CH2

mode
switches

ZXSUM8
with cover removed

RCA outputs

ground
isolation
jumper

LOC-ONLY mode

SUM+LOC mode

If you experience noise after installing the ZXSUM8, try

200 Ω

ground

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adjusting the ground isolation jumper to the position that
provides the least amount of noise.

isolated

ZXSUM8

INSTALLATION

remote out

+12V

remote in

ground

Use 18 gauge or larger wire for
these four connections.

8-Channel Sum with full-range
and subwoofer amplifi ers

To vehicle
+12V constant

remote
in & out

L+

L–

high-level /

speaker-level

audio signals

mid-bass
channel

mid channel

subwoofer channel

R+

R–

factory source unit /
factory amplifi er

tweeter channel

ZXSUM8 audio inputsZXSUM8 power input

X 4

bare-metal
chassis ground

subwoofer
amplifi er

ZXSUM8

CH4
output

CH1
output

full-range
amplifi er

ZXSUM8
remote

portable
media player

ZXSUM8 internal
switch settings

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6-Channel Sum with
full-range amplifi er

ZXSUM8 internal
switch settings

factory source unit /
factory amplifi er

mid channel

tweeter channel

subwoofer channel

ZXSUM8

full-range
amplifi er

ZXSUM8 Remote Installation

2. slide the housing
until it snaps into the

1. mount the metal
bracket

metal bracket

ZXSUM8
remote

channel 1
output

portable
media player

back view

6

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ZXSUM8

8-Channel LOC

ZXSUM8 internal
switch settings

factory source unit /
factory amplifi er

mid-bass
channel

mid channel

tweeter channel

subwoofer channel

ZXSUM8
remote

low-level signal
to amplifi ers

portable
media player

OPERATION

Maximum LED: This LED will illuminate when the signal level is slightly below clipping. When the ZXSUM8 input
levels are properly set, this LED will fl icker when your stereo is operating at full volume.

Channel Sum LED: This LED will illuminate when the corresponding channel is being summed to Channel 1.
See the CONFIGURATION section for further details.

Level Adjustment: Turn the gain on your amplifi ers to the lowest setting and disconnect them from the
ZXSUM8. Turn your source unit to approximately 3/4 volume. Adjust the level controls on the ZXSUM8 until the
MAXIMUM LED is fl ickering. Turn your source unit to minimum volume. Reconnect your amplifi ers and test your
system. You may wish to readjust the levels on the ZXSUM8 to taste.

Remote Turn-on: Connect the remote turn-on lead from your source unit to the REMOTE IN terminal on the
power connector. If a remote turn-on lead is not available, a 6V DC offset from Channel 1 will be detected when
your source unit has been turned on. The REMOTE OUT terminal will then have +12V out for turning on other
devices. Use 18 gauge or larger wire.

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power/ground/
remote turn-on
input and output

2A fuse

high-level inputs

remote input

level adjustments

power LED

– + – +

2A FUSE

GND

+12V

REMOTE IN

REMOTE OUT

POWER MAXIMUM CONNECTED

RIGHT LEFT

CHANNEL 4 INPUT

CHANNEL 4 LEVEL

TO CHANNEL 1

– + – +
RIGHT LEFT

CHANNEL 3 INPUT

CHANNEL 3 LEVEL

CONNECTED

TO CHANNEL 1

– + – +
RIGHT LEFT

CHANNEL 2 INPUT

CHANNEL 2 LEVEL

CONNECTED

TO CHANNEL 1

– + – +
RIGHT LEFT

CHANNEL 1 INPUT

CHANNEL 1 LEVEL

CHANNEL 4

REMOTE

AUX LEVEL

maximum LED

channel sum
LEDs

CH4

R L

CH3

R L

CH2

R L

low-level RCA outputs

CH1

R L

R L

low-level RCA AUX input

AUX

Channel 3 Signal Sense: If no signal is present at the Channel 4 input, the signal connected to the Channel 3
input will be routed to both the Channel 3 and Channel 4 outputs.

ZXSUM8 Remote: The remote provides
level control of the output of Channel 4.
As shown in the installation diagrams, we
recommend always using Channel 4 as your
subwoofer channel so that you can control
the bass level with this remote. When the
AUX-IN switch is depressed the Aux-In LED
will illuminate, and the ZXSUM8 source will
be switched from the high-level inputs to the

ZXSUM8

OFF

ON

AUX-IN

011

CHANNEL 4
OUTPUT

AUX-IN

low-level AUX input.

Aux-In on/off switch Aux-In LED

Channel 4 remote level knob

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ZXSUM8

INTERFAZ SUMADORA ZXSUM8
Manual del propietario

Distribuidor autorizado de KICKER:

Fecha de compra:

El ZXSUM8 es una interfaz única con la capacidad de suma (o mezcla) de múltiples señales de alto nivel,
junto a un solo de bajo nivel de salida RCA. El ZXSUM8 simplifi ca en gran medida la actualización o adición
de un amplifi cador (o amplifi cadores) a su unidad de fábrica de origen. Los canales 1–4 se pueden cambiar
internamente de forma independiente para funcionar como convertidores de salida estéreo de línea (LOC) en
lugar de la función de síntesis.

Características

• 4 entradas estéreo de nivel de bocina

• 4 salidas RCA estéreo de nivel de línea

• 1 entrada RCA estéreo auxiliar

• Balancea los niveles de múltiples fuentes de nivel de bocina

• Añade hasta cuatro pares estéreo de nivel de bocina a una sola salida RCA estéreo de nivel bajo

• Cada canal estéreo es capaz de añadir y de realizar la conversión de salida de línea, con conmutación
interna

• Integra medios portátiles directamente al amplifi cador utilizando el control de entrada auxiliar y de nivel

RENDIMIENTO

Voltaje máximo de entrada 40V RMS

Voltaje máximo auxiliar-entrada 40V RMS

Voltaje máximo de salida (Canal 1–3) 9V RMS

Voltaje máximo de salida (Canal 4) 6V RMS

Relación de señal a ruido (Canal 1–3) 90dB (ref. 1V)

Relación de señal a ruido (Canal 4) 90dB (ref. 1V < 200Hz)

Rango de atenuación remota 0dB to -27dB

Respuesta de frecuencias +0 / -1 20Hz–22kHz

Rango de ganancia (Canal 1, 2, 3, 4) -30dB to +4dB

Rango de ganancia (auxiliar-entrada) -65dB to +18dB

Fusible 2 Amperios

Ancho 10-1/2” (265mm)

Largo 5-3/4” (146mm)

Altura 1-3/8” (35mm)

Nota: Para obtener el
mejor rendimiento de sus
nuevos amplifi cadores
KICKER, le recomendamos
que use accesorios
y cableado KICKER
auténticos.

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ZXSUM8 EJEMPLO FUNCIONAL

las salidas de altavoces de la sistema de audio de fábrica
[respuesta de frecuencias]*

Canal de SUBWOOFER

KICKER ZXSUM8

La Salida de Bajo
Nivel es Mixta y
Equilibrada

Canal de MEDIO Canal de TWEETER

– + – +

– + – +

– + – +

– + – +

2A FUSE

RIGHT LEFT

GND

+12V

CHANNEL 4 INPUT

REMOTE IN

REMOTE OUT

CHANNEL 4 LEVEL

POWER MAXIMUM CONNECTED

TO CHANNEL 1

CH4

R L

R L

RIGHT LEFT

CHANNEL 3 INPUT

CHANNEL 3 LEVEL

CONNECTED
TO CHANNEL 1

TO CHANNEL 1

CH3

CH2

R L

RIGHT LEFT

CHANNEL 2 INPUT

CHANNEL 2 LEVEL

CONNECTED

CHANNEL 4

RIGHT LEFT

REMOTE

CHANNEL 1 INPUT

AUX LEVEL

CHANNEL 1 LEVEL

CH1

AUX

R L

R L

AMPLIFICADOR

* Su sistema de sonido puede tener similares (pero no totalmente idénticos) de rendimiento.

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ZXSUM8