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6. Technische Daten
Inputs
channel 1 Line / instrument input, high impedance,
unbalanced
Stereo jack socket, ¼" (6.35 mm)
Nom. input voltage: 100 mV (–20 dBV)
High / low (attenuator) switch: –10 dB
Min. input voltage:
high: 46 mV (–27 dBV)
low: 140 mV (–17 dBV)
Max. input voltage (THD < 1%):
high: 3 V (+14 dBV)
low: 7 V (+17 dBV)
Input impedance: 2.2 MΩ || 300 pF
Signal/noise ratio (A-weighted): 89 dB
Equivalent input noise (A-weighted):
3.5 µV (–109 dBV)
Phantom power: Switchable, 9 V DC / max. 100 mA, on
ring of input jack, short circuit protected
External equipment may be damaged by inappropriate
use of phantom power. In case of doubt keep the 9 V
switch off (not pushed).
channel 2 Switchable input with line mode and
microphone mode
Combo socket, XLR + jack ¼" (6.35 mm)
line mode (jack connector only)
Line / instrument input, high impedance, unbalanced
Nom. input voltage: 100 mV (–20 dBV)
Min. input voltage: 46 mV (–27 dBV)
Max. input voltage: 5 V (+14 dBV)
Input impedance: 2.2 MΩ || 300 pF
Signal/noise ratio (A-weighted): 87 dB
Equivalent input noise (A-weighted):
4.6 µV (–107 dBV)
mic mode (jack or XLR)
Microphone input, XLR (balanced), stereo jack (balanced),
or mono jack (unbalanced)
1 / sleeve = ground,
2 / tip = positive (+),
3 / ring = negative (–)
Nom. input voltage: 10 mV (–40 dBV)
Min. input voltage: 8 mV (–42 dBV)
with option: 15 mV (–37 dBV)
Max. input voltage: 1 V (0 dBV)
with option: 1.6 V (+4 dBV)
Input impedance (balanced): 1.2 kΩ
Input impedance (unbalanced): 2.7 kΩ
Voice filter:
–10 dB at 260 Hz referred to 10 kHz
Signal/noise ratio (A-weighted): 74 dB
Equivalent input noise voltage (A-weighted):
1.9 µV (–122 dBV)
Phantom power: 48 V, XLR only, R = 6.8 k per terminal,
max. 10 mA total, short-circuit protected (see notes)
Clip indicators
Headroom: min. 6 dB (both channels)
aux in
Auxiliary stereo input (mono mixed),
e.g. for CD player
Cinch
(RCA) sockets
Level control
Nom. input voltage: 2 x 500 mV (–6 dBV)
Min. input voltage: 2 x 120 mV (–18 dBV)
Max. input voltage: 4 V (+12 dBV)
Input impedance: 22 k
Signal/noise ratio (A-weighted): 91 dB
8
return
Input (return) for external parallel effect loop
Mono jack, ¼" (6.35 mm)
Nom. input voltage: 300 mV (–10 dBV)
Max. input voltage: 10 V (+20 dBV)
Input impedance: min. 10 k
Outputs
line out
Preamplifier output after master volume
Mono jack, ¼" (6.35 mm)
Nom. output voltage: 1 V (0 dBV)
Output impedance: 47 Ω
Min. load impedance: 2 kΩ
Residual noise voltage (A-weighted):
4.5 µV (–107 dBV)
send
Output (send) for parallel effect loop,
after tone controls, before master
Mono jack, ¼" (6.35 mm)
Nom. output voltage: 630 mV (–4 dBV)
Output impedance: 47 Ω
Min. load impedance: 2 kΩ
headphones
Headphones output.
When plugged in, the internal speakers are
switched off.
Stereo jack, ¼" (6.35 mm)
Nominal, no-load output voltage
(with master set accordingly): 1.6 V (+4 dBV)
Output impedance (1 kHz): ± 1Ω
Min. load impedance: 32 Ω
Nom. output power (THD < 0.1%):
2 x 80 mW / 32 Ω
2 x 1.3 mW / 2000 Ω
Residual noise voltage (A-weighted):
10 µV (–100 dBV)
For headphones with stereo (TRS) jack only. Connecting
a mono jack may cause malfunction or damage.
sub out
Output without filter for an active subwoofer
Mono jack, ¼" (6.35 mm)
Nom. output voltage: 1 V (0 dBV)
Output impedance: 47 Ω
Min. load impedance: 2 kΩ
tuner
Tuner output (not affected by mute switch)
Mono jack, ¼" (6.35 mm)
Nom. output voltage: 310 mV (–10 dBV)
Output impedance: 2 kΩ
DI-out
Balanced, non-isolated XLR output, after tone controls,
without effects, with aux (optional without aux)
1 = ground,
2 = positive (+),
3 = negative (–)
Switchable before or after tone controls
Nom. output voltage (differential):
13...130 mV (–38...–18 dBV), adjustable
Output impedance per terminal referred to ground: 47 Ω
Insert point
Serial insert point after master volume
Stereo jack, ¼" (6.35 mm)
Tip = output
Ring = input
Output voltage: 1 V (0 dBV)
Output impedance: 47 Ω
Min. load impedance: 2 kΩ
Input impedance: 10 k
Footswitch connectors
footswitch (1)
Connector for footswitch switching external effect loop
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