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A.C. POWER RECEPTACLE: The total power consumption for the
Recto Pre
is 1Amp @ 117 Volts. Thus, a 15 Amp circuit (which is what
most house circuitry is wired with) is adequate. Make sure the Euro style A.C. power cord is firmly seated in the power receptacle before
powering up the unit. Always connect the A.C. cord to a 3 terminal grounded socket. If none are available, connect
the A.C. power cord to a ground lift adaptor and then connect to a 2 terminal outlet. This may also be necessary from
time to time for ground related noise problems.
This style of power cord will make tear-downs and cable routing a lot easier and save you time as well. If you should
ever need a replacement, just call and we’ll be happy to send you another one for a nominal charge or visit your
nearest
Mesa/Boogie
Pro Center.
GROUND LIFT: This mini toggle lifts the circuit ground from the sheet metal chassis ground. Normally the ground of the circuit is
connected to the chassis ground such that there is one common ground. In certain rack applications, whether it be in live rack systems with
multiple pre-amps in use, or in a studio environment where the
Recto Pre
is connected to a console, the common
ground scenario actually creates a ground loop. By removing the circuit ground from chassis ground this annoying
hum can often be eliminated. There is no right way to use the
Recto Pre
(grounded or lifted), but if you do not
experience any ground related noise it would be preferable to use the unit in the GROUND position(toggle down).
NOTE: It is usually preferrable to connect the Preamp A.C. Power cord to the same power strip as the mixing
console (or power amp in live applications) to minimize the possibility of a ground loop and related hum or noise.
MIX CONTROL & EFFECTS LOOP: The
Recto Pre
handles external signal processing in the same way that most recording engineers
do in a pro studio environment. A dry signal (track) is the main source and a second signal is created in parallel, sent through the desired
processing and then mixed back in on a separate fader to insure the articulation and clarity of the original signal or track. The
Recto Pre’s
LOOP consists of a mono 1/4” SEND and a pair of 1/4” RETURNS which are labeled
LEFT and RIGHT and a rotary FX MIX Control. The SEND is the main source and
the RETURNS become the patch point for the parallel wet (effected) signal. The
rotary control (like the second signal faders in the studio) determines the amount of
the wet (effects) signal that gets mixed with the dry (un-effected) signal. In this way
you can choose to run your signal very wet or keep the signal virtually untouched by
the effects, thereby retaining the most articulate and urgent sound and feel.
REAR PANEL CONTROLS:
REAR VIEW :
Rectifier Recording Preamp
WARNING
:
To reduce risk of fire or
electric shock, replace fuse with
same type and rating only. Do not
expose this unit to rain or moisture.
WARNING
:
To reduce risk of fire or electric
shock, Do not remove cover. No user-
serviceable parts inside. Refer
servicing to qualified personnel.
RECTO~PREAMP
ALL TUBE
RECORDING AMPLIFIER
RECORD
OUT
TO MIX
CONSOLE
LEFT
RIGHT
LIVE
OUT
TO
PWR
AMP
(ALT FX PATCH)
RETURN - L
RETURN - R
EXTERNAL SWITCHES
SEND
CH1 - CH2
SOLO
MODERN
EXT. TRIGGER
TO POWER AMP
10%
100%
FX MIX
NORMAL
117 V~
1 AMP
60 HZ.
POWER
LIFT
GROUND
HANDBUILT IN PETALUMA CALIFORNIA PATENTS PENDING FOR MUTE, RECORDING & SOLO FEATURES TUBES: SIX 12AX7
INPUT
WARNING:
To reduce
risk of fire or electric
shock, replace fuse
with the same rati
R
ECTO
~P
REAMP
ALL TUBE
RECORDING AMPLIFIER
117 V~
1 AMP
60 HZ.
POWER
LIFT
GROUND
HANDBUILT IN PETALUMA CALIF
WARNING
:
To reduce
risk of fire or electric
shock, replace fuse
with the same rati
R
ECTO
~P
REAMP
ALL TUBE
RECORDING AMPLIFIER
117 V~
1 AMP
60 HZ.
POWER
LIFT
GROUND
HANDBUILT IN PETALUMA CALIF
RETURN - L
RETURN - R
EXTERNAL SWITCHES
SEND
CH1 - CH2
SOLO
MODERN
EXT. TRIGGER
TO POWER AMP
10%
100%
FX MIX
NORMAL
HANDBUILT IN PETALUMA CALIFORNIA PATENTS PENDING FOR MUTE, RECORDING & SOLO FEATURES
RECTO~PREAMP
ALL TUBE
RECORDING AMPLIFIER
117 V~
1 AMP
60 HZ.
POWER
LIFT
GROUND
MIN.