Technische Daten; Footswitch - AER Alpha Plus Mode D'emploi

6. Technische Daten

input 1
Switchable input with line mode and
microphone mode
Combo socket, XLR + jack ¼" (6.35 mm)
line mode (jack input only)
Line / instrument input, high impedance,
unbalanced
Nom. input voltage: 100 mV (–20 dBV)
Min. input voltage: 16 mV (–36 dBV)
Max. input voltage: 7 V (+17 dBV)
Input impedance: 2 MW || 300 pF
Signal/noise ratio (A-weighted): 92 dB
Equivalent input noise, A-weighted:
μV (–112 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
Min. input voltage: 2 mV (–54 dBV)
with option: 3.5 mV (–49 dBV) (see notes)
Max. input voltage: 1 V (0 dBV)
with option: 1.6 V (+4 dBV)
Input impedance (balanced): 1.2 kW
Input impedance (unbalanced): 2.7 kW
Voice filter:
–10 dB at 260 Hz referred to 10 kHz
Signal/noise ratio (A-weighted): 79 dB
Equivalent input noise, A-weighted:
1.1 μV (–119 dBV)
Phantom power: 48 V, XLR only,
R = 6.8 kW per terminal,
max. 10 mA total, short-circuit protected
input 2 Line / instrument input, high impedance,
unbalanced
Mono jack, ¼" (6.35 mm)
Nom. input voltage: 100 mV (–20 dBV)
High / low switch (attenuator): –10 dB
Min. input voltage:
high: 14 mV (–37 dBV)
low: 43 mV (–27 dBV)
Max. input voltage (THD = 1%)
high: 3.5 V (+11 dBV)
low: 5 V (+14 dBV)
Input impedance: 2.2 MW || 300 pF
Signal/noise ratio (A-weighted): 92 dB
Equivalent input noise,
A-weighted: 2.4 μV (–112 dBV)
Phantom power: Optional (see notes),
9 V DC / max. 100 mA, on ring of input
jack, short circuit protected
clip indicator Headroom: -6 dB
return Return (input) from external parallel
effect loop, or supplementary input
Mono jack, ¼" (6.35 mm)
Nom. input voltage: 145 mV (–17 dBV)
Max. input voltage 5 V (+14 dBV)
Input impedance: 20 kΩ
8
line out
Preamplifier output after master,
tone controls, and effects
Mono jack, ¼" (6.35 mm)
Nom. output voltage: 470 mV (–7 dBV)
Output impedance: 100 Ω
Min. load impedance: 2 kΩ
Residual noise (A-weighted):
5 μV (–106 dBV)
headphones Headphones output. When plugged in,
the internal speaker is switched off.
Stereo jack, ¼" (6.35 mm)
2.4 Nominal, no-load, output voltage:
12.7 V (+22 dBV)
Output impedance (per channel): 940 W
Load impedance: 8...2000 W
Nom. output power (THD < 1%):
2 x 1.4 mW / 8 W
2 x 35 mW / 2000 W
Residual noise (A-weighted):
2.4 μV / 8 W (–112 dBV)
190 μV / 2000 W (–74 dBV)
Note: For headphones with stereo (TRS)
jack only. Not functional with mono
jacks.
send
Send (output) for effect loop, before
master, after tone controls
Mono jack, ¼" (6.35 mm)
Output voltage: 145 mV (–17 dBV)
Output impedance: 47 Ω
Min. load impedance: 2 kΩ
tuner
Tuner output
Mono jack, ¼" (6.35 mm)
Nom. output voltage: 145 mV (–17 dBV)
Output impedance: 47 W
Min. load impedance: 2 kΩ
DI-out
Balanced, non-isolated XLR output, after
tone controls, without effects
1 = ground,
2 = positive (+),
3 = negative (–)
Nom. output voltage (differential):
60 mV (–24 dBV)
Output impedance per terminal referred
to ground: 47 W
Min. load impedance (differential): 1 kΩ

footswitch

Connector for a dual footswitch
Stereo jack, ¼" (6.35 mm)
tip = internal effect on/off
ring = external effect on/off
sleeve = common (ground)
Function: Switch ON = effect OFF
Tone controls
colour –3 dB at 700 Hz, +10 dB at 8 kHz,
(input 2) switchable
bass ±8 dB at 100 Hz, shelf type
middle ±6 dB at 800 Hz
treble ±8 dB at 10 kHz, shelf type