
OWNER'S MANUAL
G410H
Congratulations on the purchase of your new Kustom bass guitar speaker cabinet!
Your new G410H has been designed to offer exceptional sound quality and longterm performance reliability. Inside this manual you’ll find detailed information
regarding the cabinet’s features. We wish you many years of enjoyment with your
Kustom G410H.

Product Contents
These items are included with your G410H speaker cabinet.
Be sure to contact your dealer if any items are missing.
Speaker Cable
KAC-GRVSCC
G410H
Warranty Card
2

8
10
Rear Panel
2
MODEL: G410H
IMPEDANCE:8 OHMS
POWER: 1000 WATTS RMS
SENSITIVITY:95dB 1W/1M
4
5
6
7
12
16
3
2
1
0
+1 tip, -1 sleeve
INPUT/OUTPUT
+1 and -1 used
HORN ATTENUATION dB
Designed by Kustom Inc. Cincinnati, Ohio
MADE IN CHINA
1
XXXX-XXXXXX
3
1Horn Attenuator: 3Speaker Input/Output:
This is a “volume” control for the These jacks can be used as an input
horn. To disable the horn, turn the and/or output. They accept standard
knob counter clockwise until the Speakond type speaker cables. To
indicator reaches :. To set the horn
for maximum output, turn the knob
clockwise until the indicator reaches 0.
2 Speaker Input/Output:
These jacks can be used as an input
and/or output. The jacks accept a
standard ¼” cable. Note: When using
these jacks as an output to another
cabinet, refer to the Amplifier Loading
Chart (page 4) for important amplifier
loading information.
connect a cable: Insert and twist one
quarter turn clockwise until the release
button locks. To remove a cable: Pull
back release button on cable connector,
twist connector counter clockwise one
quarter turn, and pull out connector.
Note: When using these jacks as an
output to another cabinet, refer to the
Amplifier Loading Chart (page 4) for
important amplifier loading information.
3

Speaker Connection Diagram
(Shown using the Kustom GROOVE 1200 amplifier)
TUNER OUT
PRE EQ
GROUND
LIFT
DIRECT OUTPUT
EFFECTS LOOP
SEND
RETURN
POST EQ
FOOTSWITCH
BREAKER
1
5
A
A
5
1
MODEL : GROOVE 120 0
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
SERIAL NUMBER
DESIGNED IN USA
MADE IN CHINA
200112 4
CAUTION
CHASSIS SURFACE HOT
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
SPEAKER OUTPUT
Cabinet
A
Cabinet
B
Amplifier Loading Chart
Speaker cabinet
loads (ohms) applied
to the amplifier
open 16 8 5.33 4 3.20 2.67 2
open open 16 8 5.33 4 3.2 2.67 2
16 16 8.00 5.33 4.00 3.20 2.67 2.29 1.78
8 8 5.33 4.00 3.20 2.67 2.29 2.00 1.60
Cabinet
B’s
Impedance
5.33 5.33 4.00 3.20 2.67 2.29 2.00 1.78 1.45
4 4 3.20 2.67 2.29 2.00 1.78 1.60 1.33
3.20 3.2 2.67 2.29 2.00 1.78 1.60 1.46 1.23
2.67 2.67 2.29 2.00 1.78 1.60 1.46 1.34 1.14
2 2 1.78 1.60 1.45 1.33 1.23 1.14 1.00
Total load on amplifier Note: Refer to amplifier specifications for proper loading
This chart can help you determine what load (ohms) is present on the amplifier when using multiple cabinets.
- To use this chart with two cabinets (A and B), find cabinet A’s impedance (ohms) column and cabinet B’s
impedance row on the chart. The total load on the amplifier is shown in the box where they meet. For example: If
cabinet A’s impedance is 8 ohms and cabinet B’s impedance is 4 ohms, the total load on the amplifier would be 2.67
ohms.
- To use this chart with three or more cabinets, find the total load for two cabinets and then use the result for
cabinet A’s impedance column. The third cabinet will then be used for cabinet B’s impedance row on the chart.
Find the total load on the amplifier and repeat if more cabinets are used. For example (using 3 cabinets): If the first
cabinet (cabinet A) has an impedance of 16 ohms and the second (cabinet B) has an impedance of 8 ohms, the
total load would be 5.33 ohms. Using this load (5.33) as cabinet A’s impedance and a third cabinet’s (new cabinet
B) impedance of 4 ohms, you would find that the total load on the amplifier is 2.29 ohms. Note: It is not
recommended to use any combination of cabinets that has a resulting load in a shaded area of the chart.
Cabinet A’s Impedance (ohms)
information.
Alternate Connection Diagrams
1
5
A
A
5
1
MODEL: GROOVE 1 200
BREAKER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
2001124
SERIAL NUMBER
CAUTION
CHASSIS SURFACE HOT
DESIGNED IN USA
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
SPEAKER OUTPUT
MADE IN CHINA
8 Ohms
8 Ohms
Total Load On Amplifier = 2 Ohms
GROUND
LIFT
8 Ohms
8 Ohms
DIRECT OUTPUT
EFFECTS LOOP
SEND
TUNER OUT
PRE EQ
POST EQ
FOOTSWITCH
RETURN
1
5
A
A
5
1
MODEL: GROOVE 1 200
BREAKER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
2001124
SERIAL NUMBER
CAUTION
CHASSIS SURFACE HOT
DESIGNED IN USA
ATTENTION
SUPERFICE DE CHASSIS CHAUDE
SPEAKER OUTPUT
MADE IN CHINA
8 Ohms
GROUND
LIFT
8 Ohms
DIRECT OUTPUT
EFFECTS LOOP
SEND
TUNER OUT
PRE EQ
POST EQ
FOOTSWITCH
RETURN
=
8 Ohms
Total Load On Amplifier = 2 Ohms
4
8 Ohms

G410H
Model Groove 410H Bass guitar speaker cabinet
Input Power 1000 Watts RMS
Impedence 8 Ohms
Speakers 4 X 10" Specially Designed Eminence Speakers
Sensitivity per speaker 95dB 1W at 1 meter Average sensitivity 35-5Khz using factory test conditions
mm/kg 820 (Height) x 617 (Width) x 510 (Depth), 46.4 kg
Inches/Pounds 32.25 (Height) x 24.25 (Width) x 20.125 (Depth), 102.3 lbs
Accessories Included
System Response
Dimensions
Frequency Response 40HZ-15kHz
Speakon Cable 3 meter Speakon speaker cable
Specifications
5

®
Kustom Amplification Inc., PO BOX 568, Hebron, KY • USA
888-4-KUSTOM (888-458-7866) Web: www.kustom.com