Acoustic Control GAMMA ATLAS User manual

Your GAMMA SERIES Atlas Boosted
Overdrive from Acoustic Control Corporation
allows you to add nuanced, tube amp-
style overdrive to your guitar sound, with
a Boost switch that pushes low frequencies
and adds more high end bite to the
drive sound. This distortion preserves
your dynamics and articulation, and is
nicely responsive to volume, tone and
pickup adjustments you make on your
guitar. It’s all built into a road-ready metal
chassis with metal knobs, operating
from either a 9-volt battery, or 9-volt DC
power supply.
OWNER’S MANUAL
FEATURES:
• Tube amp-style overdrive that preserves dynamics, articulation and guitar character
• Boost switch enhances low frequencies, and adds more high end bite to the drive sound
• All metal chassis and knobs and a road-ready design
• Simple operation for easy access to essential sound for electric guitar
• Operates from a 9-volt battery or 9V DC adapter (battery and DC supply not included)
• Mono audio input and output, with buered bypass for consistent tone in any setup
SPECIFICATIONS:
Power Input Compatibility
9V DC (Center Negative)
Power Draw 15mA
Battery Compatibility
9V (Alkaline recommended)
50 Hours Run Time
Input
¼” Instrument Level Input
(650k Ohms Impedance)
Output
¼” Instrument Level Output
(1k Ohms Impedance)
Dimensions
4.59 in (D) x 27.5 in (W)
x 2.19 in (H)
Weight
.55 Lbs (8.8 oz)
CUSTOMER SUPPORT & SERVICE
For product questions or customer service, please visit www.AcousticControlCorp.com,
or call us at [phone], Monday-Friday 8:00 a.m.-5:00 p.m. MST.

1. DC 9V Power Input Jack
You can power your GAMMA Series
pedal from a 9-volt regulated DC
adapter (plug polarity is positive on
the barrel and negative in the center).
2. Battery Capability
Use a Phillips head screwdriver to
remove 4 bottom screws to access
battery connection. High quality
alkaline 9-volt battery can be used for
approximately 50 hours of continual
operation. If pedal won’t operate when
battery is installed, battery may be
discharged, and should be replaced
with a fresh, fully-charged battery. Or
connect a compatible power supply
for non-battery operation.
3. Footswitch
Push down the footswitch to toggle
between on and bypass status.
4. LED
When the LED is lit, the eect is on.
When it’s o, the eect is bypassed.
5. INPUT Jack
¼” mono audio jack, to receive the
signal from your guitar or a previous
pedal. Pedal draws power only when
this jack has a plug inserted.
6. OUTPUT Jack
¼” mono audio jack, outputs the signal.
7. BOOST SWITCH
Boost setting adds low frequency energy,
and adds more high end bite to the
DRIVE.
8. LEVEL Knob
Adjusts output level (volume).
9. DRIVE Knob
Adjusts the amount of distortion.
10. TONE Knob
Adjusts the high frequency response,
from dark to bright. Try the center
(noon) position as a starting point.
3
9
10
6 5
2
Underside of pedal
(Bottom removed for battery access)
8
1
4
7
21510408 2209
AcousticControlCorp.com