Rear Panel
Technical Data
Caution: Replace fuses only with others of the same rating
Rated power
Tube array
2x50 Watt (model 830.50)
2x30 Watt (model 830.30)
GAIN Lo: -15 dB max. 15 dB
GAIN Hi: -30 dB max. 0 dB
830.50:
V4,V5,V6,V7-> EL84, matched set
V8,V9,V10,V11-> EL84, matched set
830.50
Outlet each channel
Input level
Tubes
1x8 Z , 1x16 Z
Fuses
app.12 kg
830.30:
V4,V6-> EL34, matched set
V9,V11-> EL34, matched set
V1-> ECC83/12AX7 selected
V2,V3-> ECC83/12AX7 standard
Power Amp (ECS): 4x160m AM
100V und 120V
5 AM medium
6,3 AT slow
AC Mains
external
internal
230V
2,5 AM
3,15 AT
830.30
100V und 120V
2,5 AM
3,15 AT
230V
1,25 AM
1,6 AT
Power Amp (ECS): 2x160mAM
Dimensions
Weight
19', 2 rack spaces, depth: 300mm (not including handles),
Fan
Po
wer
T
ransformer
Internal Fuse
V4 V5 V6 V7
V8 V9 V10 V11
Left Side
Right Side
V1
V2
V3
V4
+
V5
V6
+
V7
V8
+
V9
V10
+
V11
V4
+
V6
V9
+
V11
Power Tube Fuses
(ECS)
830.30
830.50
Left Output
Transformer
Right Output
Transformer
Front Panel
Left
Right
BIAS
AC Mains
external
internal
Footswitch Presence A/B
1/4" footswitch jack for PRESENCE A/B
switching between PRESENCE A and PRESENCE
B
T I P
3
AC Socket
connect AC cord here
ATTENTION: Ensure you use an intact AC cord
with an insulated plug only! Before you power the
amp up, ensure the voltage value printed above
the AC socket corresponds to the available current.
Fan Shaft
ultra-quiet fan ensures your amp remains
cool; hot air escapes via this shaft.
ATTENTION: Install the amp in a 19" rack
in such a manner as to ensure air
circulation is not impeded. Do not block or
cover the fan shaft and side coolant vents.
Speaker Output 16 Ohm, Right
16Z right channel speaker output jack;
connect 16Z speaker cabinet here
Speaker Output 8 Ohm, Right
8Z right channel speaker output jack;
connect 8Z speaker cabinet here
Speaker Output 16 Ohm, Left
16Z left channel speaker output jack;
connect 16Z speaker cabinet here
Speaker Output 8 Ohm, Left
8Z left channel speaker output jack; connect 8Z
speaker cabinet here
IMPORTANT: If you choose to use just one power
amp channel, ensure you switch the other channel's
STANDBY switch off. Never operate an active stereo
channel without a connected speaker, you may
destroy the power amp!
AC Fuse Box
contains mains fuse (rear chamber) and spare
fuse (front chamber) NOTE: Ensure replacement
fuses bear identical ratings (refer to the table)!
20
16
17
18
19
23
24
25
21
22
Input Right
Signal input to right power amp
16 17
18 19
20 21
22
23 24 25
Input Left
Signal input to left power amp
T I P
2
