Lexicon ALEX - REV 1 User Manual

A dual-function footswitch is provided with
your unit, along with a set of labels to identify
footswitch functionality.
BYPASSSTEP
Footswitch Connections
A footswitch connected via the rear-panel
footswitch jack allows you to perform register
STEP and BYPASS functions. Two
footswitches can be wired to a tip-ring-sleeve
connector, or a single, mono connector can
be used. (With a single connector, insert half-
way in for register step, all the way in for
bypass.) A stereo Y-connector allows two
identical single switches to be used.
When shipped, Alex is configured to use
push on/push off type switches. You can
change this configuration to allow the use of
momentary contact switches by performing
the following procedure:
1. Power up Alex while holding in both the STORE/
CLEAR and the PARAMETER buttons. (This
will put the unit into Diagnostic mode with a "d"
displayed.)
2. Press STORE/CLEAR, then turn the REGIS-
TER/PRESET knob until the display reads "0"
(push on/push off) or "1" (momentary contact).
3. Press STORE/CLEAR to enter the change. The
display will show "+", and then the number you
have selected.
4. Power the unit off, then on again to restore
normal operation with the selected configura-
tion.
TIP
RING
SLEEVE
Tip Sleeve
Ring
Bypass
Step
or
TIP
RING
SLEEVE
Tip Sleeve
Ring
Bypass
5

Lexicon ALEX - REV 1 Specifications

Audio

audio input level	-30 dBu minimum
audio input impedance (stereo)	50 kΩ unbalanced
audio input impedance (mono)	25 kΩ unbalanced
audio output level (nominal)	-2 dBu
audio output level (maximum)	+8 dBu
audio output impedance	600 Ω unbalanced

Frequency Response and THD+N

frequency response (wet)	20 Hz - 15 kHz, +1 dB to -3 dB
frequency response (dry)	20 Hz - 20 kHz, +0.5 dB
THD+N (wet)	<0.05% @ 1 kHz
THD+N (dry)	<0.025% @ 1 kHz

Dynamic Range and Conversion

dynamic range	85 dB, typical, 20 Hz - 20 kHz bandwidth
conversion	16 bit linear PCM encoding
sampling rate	31.25 kHz

Power

power requirements	9 VAC, 1 A wall transformer provided

Operating Environment

operating temperature	32° to 104°F (0° to 40°C)
storage temperature	-20° to 170° F (-30° to 75°C)
relative humidity	95% non-condensing

Weight and Dimensions

dimensions	19"W x 1.75"H x 4"D (483 x 45 x 102 mm)
weight	2 lbs 11 oz (1.22 kg)