6. Technische Daten/Technical Data
Technical data
Inputs
channel one,
High impedance, unbalanced instrument or
channel four
line inputs
Mono jack socket, ¼" (6.35 mm)
Min. input voltage: 21 mV (–34 dBV)
Max. input voltage: 4 V (+12 dBV)
Input impedance: 2.2 M || 150 pF
Equivalent input noise voltage (A-weighted):
1.7 μV (–115 dBV)
Attenuator switch: –10 dB
Phantom power: Optional, see notes.
clip indicator
Headroom: min. 6 dB
channel
Switchable line / microphone inputs
two,
Combo socket, XLR + jack ¼" (6.35 mm)
channel
line mode (via jack input only)
three
High impedance, unbalanced instrument or
line input
Min. input voltage: 25 mV (–32 dBV)
Max. input voltage: 2.8 V (+8 dBV)
Input impedance: 1 M || 200 pF
Equivalent input noise voltage (A-weighted):
2.6 μV (–112 dBV)
mic mode
Microphone input, XLR (balanced), stereo
jack (balanced), or mono jack (unbalanced)
1 / sleeve = ground,
2 / tip = positive (+),
3 / ring = negative (–)
Min. input voltage: 2 mV (–55 dBV)
Max. input voltage: 250 mV (–12 dBV)
Input impedance (balanced): 1.1 k
Input impedance (unbalanced): 4 k
Voice filter:
–10 dB at 270 Hz referred to 10 kHz
Equivalent input noise voltage (A-weighted):
2.4 μV (–112 dBV)
Phantom power: 48 V, XLR only, switchable,
R = 6.8 k per terminal, max. 10 mA per
input, short-circuit protected.
clip indicator
Headroom: min. 6 dB
aux in
Auxiliary stereo input, e.g. for CD player
Cinch (RCA) sockets, L / R
Level adjustable by aux return
Min. input voltage: 125 mV (–18 dBV)
Max. input voltage: 10 V (+20 dBV)
Input impedance: min. 3.7 k
(varies with level setting)
ext. effect
Input from external parallel effect loop, or
return
supplementary input
Mono jack, ¼" (6.35 mm)
Level adjustable by effect 2 return
Min. input voltage: 410 mV (–9 dBV)
Max. input voltage: 10 V (+20 dBV)
Input impedance: min. 8 k
(varies with level and footswitch setting)
Outputs
rec out
Stereo line output
Cinch (RCA) sockets, L / R
For more specs see L-out, R-out
headphones
Stereo headphones output
Stereo jack socket, ¼" (6.35 mm)
When plugged in, internal speakers are
muted.
Output power at rated conditions:
2 x 24 mW / 32
Max. output power: 2 x 160 mW / 16
Min. load impedance: 8
Caution:
Suitable for stereo headphones
only. Connecting a mono jack or
connecting to other devices may cause
malfunction or damage.
20
tuner
Tuner output, before tone controls and
effects, not affected by mute
Mono jack, ¼" (6.35 mm)
Output voltage: 330 mV (–10 dBV)
Output impedance: 47
Min. load impedance: 2 k
L-out, R-out
Stereo line output after tone controls,
adjustable by pre master, with switchable
stereo simulation, aux in, and effects
2 mono jack sockets, ¼" (6.35 mm), L / R
Output voltage: 0...1 V (0 dBV),
adjustable by pre master
Output impedance: max. 15 k
(varies with level setting)
Min. load impedance: 2 k
Residual noise (A-weighted):
< 1 μV (–120 dBV)
line out
Mono line output after master, with aux in
and effects, and after insert
Mono jack, ¼" (6.35 mm)
Output voltage: 460 mV (–7 dBV)
Output impedance: 100 (but depends on
external device if insert is also used)
Min. load impedance: 2 k
Residual noise (A-weighted):
4.5 μV (–107 dBV)
DI-out
Balanced, non-isolated XLR output, before
tone controls, with aux in, without effects
1 = ground,
2 = positive (+),
3 = negative (–)
Output voltage (differential):
68 mV (–23 dBV)
Output impedance: 100 , each terminal to
ground
Min. load impedance (differential): 1 k
ext. effect
Output for external parallel effect loop,
send
before master, after tone controls
Independent on send controls (see notes)
Mono jack, ¼" (6.35 mm)
Output voltage: 1 V (0 dBV)
Min. load impedance: 2 k
Insert connector
insert
Connector for serial insert loop, after master
but before line out.
Interrupts the direct signal path when used.
Stereo jack, ¼" (6.35 mm),
tip = send, ring = return
Output and input voltage: 460 mV (–7 dBV)
Output impedance (send): 47
Min. load impedance (send): 2 k
Input impedance (return): 22 k (but
depends on external device if line out is
also used)
Footswitch connectors
footswitch
Connector for a dual footwitch
effect int/ext
Stereo jack, ¼" (6.35 mm)
Tip = internal effect on/off
Ring = external effect on/off
Sleeve = common (ground)
Function: Switch ON = effect muted
footswitch
Connectors for dual footwitches
mute ch 1/2,
Stereo jack, ¼" (6.35 mm)
footswitch
Tip = muting ch. 1 (3)
mute ch 3/4
Ring = muting ch. 2 (4)
Sleeve = common (ground)
Function: Switch ON = channel muted
When plugged in, the respective mute
buttons of the amp are disabled.