Ada MICROCAB I User Manual

ADA Microcab I owners manual version 1
that may be present from poorly-balanced power sources or ground loops in your
system.
Note: You must have a good tone first! Set your preamp and effects to get your best tone
using your whole rig, including the guitar speakercabinets, before patching in the
MICROCAB.
USING THE MICROCAB
The MICROCAB can be used in the recording studio to quickly capture "that right tone" just
as it sounds coming out of your guitar cabinets. The MICROCAB is also used for live sound
reinforcement to get the exact tone on stage into the house system, without much of the
hassle involved in lengthy sound checks and mike placement trial and error, while providing
absolute isolation from other instruments onstage.
Since guitar speaker cabinet systems don't have a flat frequency response, some outboard
EQ is essential to simulate the characteristic tone and presence of a "live" speaker cabinet.
The ADA
MICROCAB is designed specifically to emulate the presence, tone and coloration
found in a variety of modern and vintage speaker cabinets.
Further, since the signal at the speaker cabinet is brought to your mixing console via a
microphone, and not through a direct box (this would sound terrible), the microphone's
frequency response must be taken into account. The
MICROCAB is designed to
accommodate this characteristic, delivering the "feel" and tone that has become an integral
part of the sound of amplified guitar.
Additionally, the ADA
MICROCAB is capable of emulating the close-miking characteristics
of the Shure SM57 microphone—the industry standard for guitar miking in the studio and live
sound reinforcement. The SM57 is well-noted for its "proximity effect," or low frequency boost
at 180 Hz when placed very near the sound source (see Huber, Micro
phone Manual, Focal Press, 1988, p. 258), further enhancing the "thump" effect of the
British-style 4 x 12 cabinet. Also note (Graph C, p. 18) that the high frequency response from
the Shure SM57 when placed off-axis is greatly attenuated. The shallow comb filter nodes
across the mid-frequency band are another "live" characteristic that the ADA MICROCAB
incorporates into its tone-shaping circuitry (comb filter).
The Shure SM57 (note characteristic "bump" at 180 Hz).
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Ada MICROCAB I Specifications

Power

maximum input	+20 dBV
maximum output	+19 dBm
power consumption	4 Watts
external A.C adapter	117 VAC/60 Hz
alternative power option 1	220 VAC / 50 Hz
alternative power option 2	100 VAC 50/60 Hz

Electrical Specifications

input impedance	50k ohms

Weight and Dimensions

width	19"
depth	5"
height	1-3/4"
weight	2.5 lbs