Input circuit board – Krell Industries KAV 3250 User Manual
Page 21
KAV–2250
Two-channel
Power Amplifier
KRELL INDUSTRIES, INC.
45 CONNAIR ROAD
ORANGE, CT 06477-3650
USA
MADE IN USA
NO USER SERVICEABLE PARTS INSIDE
12VDC
30 mA max. OUT
50/60 Hz
AGC-12
AGC-12
IN
INPUT 2
INPUT 1
OUTPUT 2
OUTPUT 1
BRIDGE
8
6
4
11
12
10
8
10
14
13
Figure 3 The KAV–2250 Back Panel
Figure 4 The KAV–3250 Back Panel
KAV–3250
Three-channel
Power Amplifier
KRELL INDUSTRIES, INC.
45 CONNAIR ROAD
ORANGE, CT 06477-3650
USA
MADE IN USA
NO USER SERVICEABLE PARTS INSIDE
12VDC
30 mA max. OUT
50/60 Hz
IN
AGC-12
AGC-12
INPUT 2
INPUT 1
OUTPUT 2
AGC-12
INPUT 3
OUTPUT 3
OUTPUT 1
BRIDGE
9
9
7
5
10
10
9
10
11
12
14
13
8
Krell KAV–2250 and KAV–3250
Balanced Inputs
4 Inputs
1-2
5 Inputs
1-3
Single-Ended Inputs
6 Inputs
1-2
7 Inputs
1-3
Amplifier Channel
Outputs
8 Outputs
1-2
9 Outputs
1-3
Fuses
10 AGC-12
Fuses
Remote Connections
11 12 VDC Remote Power Out
12 12 VDC Remote Power In
Power
13 IEC Power Connector
14 Back Panel Power Switch
Figure 6 Reconfiguring the KAV–2250 for MAT Operation
1
2
O
N
1
2
O
N
1
S3
S1
Bridge
Channel 1 Input
Channel 2 Input
MT1
J5
J6
S2
Input Circuit Board
Figure 7 Reconfiguring the KAV–3250 for MAT Operation
3
1
2
O
N
3
1
2
O
N
3
1
2
O
N
1
S4
S1
Bridge
Channel 1 Input
Channel 2 Input
Channel 3 Input
MT1
J7
J8
J9
S3
S2
Input Circuit Board
1
2
O
N
Switch Up (On)
Switch Down (Off)
Bridge Switch Up (On)
Bridge Switch Down (Off)
1
2
3
O
N
KAV–3250 Input Switch Bank
KAV–2250 Input Switch Bank
Krell KAV–2250 and KAV–3250
17
Send One Input Signal
to Both Output Channels via Input 1
Send One Input Signal
to All Three Output Channels via Input 1