Fostex A-2 - Installation; Record Inputs

INSTALLATION
Unpack the unit, and, before making any electrical connec-
tions, inspect for any evidence of possible shipping damage.
Save all packing materials at least until you have verified that
the unit is working properly. If there is any evidence of
damage due to rough handling, consult your Fostex dealer
before connecting or operating the unit.
CABLES
The A-2 has high impedance unbalanced inputs and outputs.
It is recommended that all cables be kept to the shortest
practical length, with a maximum of 10 feet (3 meters). Use
only high quality cables with tightly braided shields, multiple-
stranded center conductors, and low internal capacitance.
Such cables minimize high frequency losses, and reduce
susceptibility to hum. Separate input cables from output
cables by at least a few inches, and keep all signal cables
away from AC power cords by the greatest practical dis-
tance. If AC and signal cables must intersect, they should
cross at right angles. ;
RECORD INPUTS
The two A-2 INPUT jacks are unbalanced, high impedance
RCA type phono jacks which accept nominal — 10 dBV (0.3V)
line level signals from a low or high impedance source.
If the mixer has +4 dBm (1.23 V) line level outputs, it is
necessary to reduce this level by installing 10 or 15 dB at-
tenuation pads between the mixer outputs and the A-2 inputs.
SECTION 3
Figure 3. Connection of the A-2 in a typical stereo
recording/playback system.
AMPLIFIER
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CASSETTE DECK
SPEAKER В
From 2 chan mixer, etc.
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Such pads аге commercially available.
Microphones cannot be connected directly to the A-2 unless
a microphone preamplifier is used to increase the signal
level. However, many electronic musical instruments (e.g.,
electronic piano, synthesizer, etc.) can be connected directly
to the recorder inputs.
CAUTION: Never connect a speaker-level output, such
as the output of a power amplifier or guitar amplifier, to
the A-2 INPUT jacks unless a suitable direct box is used.
The direct box should attenuate the signal to a suitable
— 10 dBV level, which prevents overdriving the recorder.
The direct box also should include an isolation trans-
former, which avoids hum by preventing ground loops and
also avoids electrical shock hazard.
OUTPUTS
The two A-2 OUTPUT jacks are unbalanced RCA type phono
jacks that deliver nominal - 10 dBV (0.3V) line level signals to
any high impedance mixer or monitor amplifier inputs.
NOTE: Most mixers with line inputs rated at +4 dBm
nominal level do have input trim or gain controls that can
be set for the necessary increased sensitivity to ac-
comodate the recorder's —10 аву outputs. If the sensitivi-
ty cannot be increased, it is О.К. to use the +4 dBm in-
puts, but there may be some degradation of S/N ratio.
A-2 RECORDER/REPRODUCER
AC
8030 REMOTE CONTROL UNIT
SPEAKER L