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5. Technical Data
Inputs (notes 1, 2)
Inputs, channels Combo socket, XLR + jack ¼" (6.35 mm)
1 – 4
Line mode
High impedance, unbalanced jack input for instru-
ments (pick-ups) and line-level sources
Sensitivity: 26 mV (–32 dBV)
Pad switch (attenuator): –10 dB
Impedance: 1 Meg
Equivalent input noise,
A-weighted: 1.6 µV (–116 dBV)
Phantom power: +9 V DC at ring of jack sockets
in Ch. 1 and Ch. 3, switchable per channel (note
4), max. 100 mA (all channels total), overload
protected
Mic mode
XLR (balanced), stereo jack (balanced),
or mono jack (unbalanced) input
Sensitivity: 7.5 mV (–43 dBV)
Pad switch (attenuator): –19 dB
Impedance (balanced): 1.7 k
Equivalent input noise,
A-weighted: 0.3 µV (–130 dBV)
Voice filter: –4 dB at 450 Hz (referred to 10 kHz)
Phantom power: 48 V, with common on/off
switch for all four channels (note 4)
Clip indicator: Headroom 6 dB
Return
Stereo return from external parallel effect loop
2 x mono jack, ¼" (6.35 mm, left/right)
Sensitivity: 375 mV
Routing: stereo to speakers, headphones, rec out,
and L/R-out; mono (L+R) to DI out
Aux in
Auxiliary stereo input (e.g., for CD player)
Level adjustable
Cinch (RCA) sockets (left/right)
Sensitivity: 375 mV
Routing: stereo to speakers, headphones, rec out,
and L/R out; mono (L+R) to DI out
Outputs (note 3)
Tuner
Tuner output, not affected by mute switch
Mono jack, ¼" (6.35 mm)
Output voltage: 360 mV
Headphones
Headphones output. When connected, internal
speakers are muted.
Stereo jack, ¼" (6.35 mm)
Output power: max. 2 x 100 mW / 32 ohms
Input sensitivity for 2 x 50 mW / 32 ohms:
30 mV at line input (any channel)
Caution: For stereo headphones with stereo jack
plug only. Do not connect mono plugs.
Active speaker Mono (L+R) output post-master, suitable for
active extension speaker
Mono jack, ¼" (6.35 mm)
Output voltage: 1.4 V
Activates 100 Hz low-cut filter for internal speaker
if plugged in.
L/R-out
Stereo line output after tone controls,
with aux in and effects
Level adjustable by pre out
2 x mono jack, ¼" (6.35 mm, left/right)
Output voltage: 0...1.4 V
Rec out
Recording output after tone controls,
with aux in and effects
Cinch (RCA) sockets (left/right)
Output voltage: 1.4 V (note 4)
6
DI
Balanced XLR output before master, after tone
controls, with aux in and effects (note 4)
Level adjustable
Output voltage: 0...145 mV
Send
Send for parallel effect loop
Mono jack, ¼" (6.35 mm)
Output voltage: 710 mV (note 4)
USB lamp
DC output for a lamp
Data lines are not connected.
Output voltage: 5 V DC, max. 200 mA
Insert points
Insert L/R
Stereo insert point after master volume
2 x stereo jack (L/R), ¼" (6.35 mm)
Tip = send, ring = return
Output voltage: 1.4 V
Tone controls (all channels)
colour
+10 dB at 8 kHz, –3 dB at 700 Hz
bass
±8 dB at 100 Hz, shelf type
middle
±4 dB at 650 Hz
treble
±9 dB at 10 kHz, shelf type
Effects
Internal effect
AER 32-bit digital effect processor
with 16 factory presets
Two independent, simultaneous effects (one for
channels 1 and 2, and one for channels 3 and 4).
USB interface and PC software for creating user-
defined settings
External effect
Parallel effect loop (see send and return)
Power
Power amp
2 x 100 W / 4 ohms,
discrete bipolar transistor design
Dynamic range: 100 dB (A-weighted, see note 2)
Limiter threshold 2 x 85 W
Analog signal
Subsonic filter, low distortion RMS limiter
processing
Speaker system Two 8" (200 mm) twin cone full-range speakers,
bass reflex enclosure
Mains power
Mains voltage (depending on model):
100, 120, 230, or 240 V AC, 50–60 Hz.
Power consumption: max. 420 W
Mains fuse
5 x 20 mm
Slow 3.15 A for 230 and 240 V models
Slow 6.3 A for 100 and 120 V models
General
Cabinet
15 mm (0.6") finnish birch plywood
Finish
Waterbased acrylic, black spatter finish
Dimensions
365 mm (14.37") high
420 mm (16.54") wide
300 mm (11.81") deep
Weight
16 kg (35.3 lbs)
Notes:
1. Input sensitivity
Input sensitivities refer to 2 x 85 watts into 4 ohms, full gain and master settings, neutral tone
control settings, and 1 kHz sine-wave test signal.
2. Noise and dynamic range
Equivalent input noise voltage was obtained by measuring noise voltage at speaker output and
dividing by the effective voltage gain of the amplifier. Full gain and master settings, neutral tone
control settings, input shorted, measuring bandwidth 20 Hz – 20 kHz.
Dynamic range: Range between output signal at limiter threshold and A-weighted output noise
with master volume in zero position.
3. Output levels
Output levels refer to 50 mV / 1 kHz sine-wave test signal at channel 1 input in line mode, full gain
and master settings, and neutral tone control settings.
4. Options
The following options can be activated by jumper settings.
9 V phantom power can be enabled for channels 2 and 4 if required. (Not recommended generally,
because only a common switch will be available for channels 1/2, and channels 3/4 respectively)
48 V phantom power can be disabled for each of the four channels.
DI output can be changed from post-equalizer to pre-equalizer (tone controls) for each channel,
and disconncted from aux in, internal, and external effects.
Send level can be made dependent on eff. send controls for each channel.
Rec out level can be made dependent on pre out control.
0 dBV = 1 V
Specifications and appearance subject to change without notice.