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Ampeg SCR-DI Owner's Manual

Ampeg SCR-DI
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SCR-DI Bass DI with Scrambler™ Overdrive
6
SCR-DI Front and Right Side Panel Features
1. INPUT: The signal output from an
instrument (active or passive) may
be connected to this 1/4" input by
means of a shielded instrument cable.
NOTE: There is a –15 dB pad jumper
located inside of the pedal. Details on
switching the jumper may be found on
page 9.
NOTE: Unplug the input cable when
not in use, as the 9V battery will drain
(and eventually die). Details on replacing
the battery may be found on page 9.
2. THRU: This is where you connect
instrument-level parallel effects devices
(such as an FX device chain, processors,
or tuner). This output is unaffected by
the SCR-DI’s circuitry.
3. AUX INPUTS: The audio output from
line-level sources, such as an iPod
®
,
MP3, or CD player can connect to
either of these inputs. The incoming
audio is mixed with the preamp signals,
and appears in the headphone out only.
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2
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4. EQ SWITCH: Engage this switch
to activate the EQ section.
NOTE: The EQ may be used
simultaneously with or separately
from the Bass Scrambler™ overdrive
effect and vice-versa.
5. EQ ON/OFF LED: This LED illuminates
purple when the EQ section is engaged.
6. VOLUME: Use this to control the overall
output level. It affects the preamp level
to the balanced XLR out, unbalanced
1/4" out and phone outputs. Use it
wisely, and turn it down when making
connections, putting on headphones,
or trying something new. It does not
affect the signal fed to the aux input.
NOTE: The volume control is active
only when the EQ is engaged.
7. BASS: Use this to adjust the low
frequency level of the SCR-DI.
This provides up to 14 dB of boost,
or 14 dB of cut at 40 Hz. The low
frequency output is flat at the center
position.
8. ULTRA LO: This switch, when engaged,
enhances the amount of low-end
output by 1 dB at 40 Hz and –10 dB
cut at 500 Hz.
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Drive Blend
6 7
458

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Ampeg SCR-DI Specifications

Sound Specifications IconSound Specifications
signal to noise ratio90 dB (20 Hz–20 kHz, unweighted)
maximum gain at 1 kHz input24 dB; 45 dB, Scrambler in/max.
aux input27 dB
tone controls bass+14/–14 dB @ 40 Hz
tone controls mid+5/–11 dB @ 500 Hz
tone controls treble+16/–15 dB @ 4 kHz
Power IconPower
internal power requirements9V Battery
external power requirements9–12V DC @ 100mA
Weight and Dimensions IconWeight and Dimensions
size2.2 in x 7.6 in x 4.3 in
dimensions in mm56 mm x 193 mm x 110 mm
weight2.6 lb / 1.2 kg

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