Kustom GROOVE 1300 Owner's Manual page 8

Speaker Connection Diagram
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.
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
DESIGNED IN USA ATTENTION
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
not use any combination of cabinets that results in a box that is shaded.
Alternate Connection Diagrams
TUNER OUT
GROUND PRE EQ
MODEL: GROOVE 1300™
LIFT POST EQ
RISK OF ELECTRIC SHOCK RISK OF ELECTRIC SHOCK DIRECT OUTPUT
DO NOT OPEN 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: To prevent overheating and possible loss of signal, do
MODEL: GROOVE 1300™
BREAKER
RISK OF ELECTRIC SHOCK RISK OF ELECTRIC SHOCK
DO NOT OPEN 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
Note: Efficiency is reduced due to line loss using this method
8
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
Note: It is not
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