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Speaker Connection Diagram
(Shown using the Kustom GROOVE 1300 amplifier)
Speaker cabinet
loads (ohms) applied
to the amplifier
open
16
8
Cabinet
5.33
B's
4
Impedance
3.20
2.67
2
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.
BREAKER
MODEL: GROOVE 1300
BREAKER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
2001124
SERIAL NUMBER
CAUTION
CHASSIS SURFACE HOT
ATTENTION
DESIGNED IN USA
MADE IN CHINA
SUPERFICE DE CHASSIS CHAUDE
Cabinet
A
Amplifier Loading Chart
open
16
open
16
16
8.00
8
5.33
5.33
4.00
4
3.20
3.2
2.67
2.67
2.29
2
1.78
Total load on amplifier
Alternate Connection Diagrams
TUNER OUT
GROUND
PRE EQ
MODEL: GROOVE 1300
LIFT
POST EQ
RISK OF ELECTRIC SHOCK
DIRECT OUTPUT
DO NOT OPEN
ATTENTION
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
EFFECTS LOOP
2001124
SERIAL NUMBER
CAUTION
CHASSIS SURFACE HOT
DESIGNED IN USA
ATTENTION
MADE IN CHINA
SUPERFICE DE CHASSIS CHAUDE
SPEAKER OUTPUT
SEND
RETURN
FOOTSWITCH
8 Ohms
8 Ohms
8 Ohms
8 Ohms
Total Load On Amplifier = 2 Ohms
GROUND
LIFT
DIRECT OUTPUT
EFFECTS LOOP
SPEAKER OUTPUT
SEND
Cabinet
B
Cabinet A's Impedance (ohms)
8
5.33
4
8
5.33
5.33
4.00
3.20
4.00
3.20
2.67
3.20
2.67
2.29
2.67
2.29
2.00
2.29
2.00
1.78
2.00
1.78
1.60
1.60
1.45
1.33
Note: Refer to amplifier specifications for proper loading
information.
MODEL: GROOVE 1300
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
MADE IN CHINA
SUPERFICE DE CHASSIS CHAUDE
8 Ohms
=
8 Ohms
Total Load On Amplifier = 2 Ohms
4
TUNER OUT
PRE EQ
POST EQ
RETURN
FOOTSWITCH
3.20
2.67
4
3.2
2.67
2.67
2.29
2.29
2.00
2.00
1.78
1.78
1.60
1.60
1.46
1.46
1.34
1.23
1.14
TUNER OUT
GROUND
PRE EQ
POST EQ
LIFT
DIRECT OUTPUT
EFFECTS LOOP
SPEAKER OUTPUT
SEND
RETURN
FOOTSWITCH
8 Ohms
8 Ohms
2
2
1.78
1.60
1.45
1.33
1.23
1.14
1.00
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