Art MPA Gold User manual

Applied Research & Technology •215 Tremont St., Rochester, NY 14608 •USA •585.436.2720 tel •585.436.3942 fax •www.artproaudio.com
Features and specifications subject to change without notice. ©2003 Applied Research and Technology ART-MPAGOLD-Specs-0503
From the innovative minds at ART.
From the innovative minds at ART.
MPAGold™
2 CHANNEL MICROPHONE PREAMPLIFIER
A professional tube microphone preamplifier
is defined by warmth, presence and clarity –
core elements which make a performance
truly come alive. Sister to theART Digital MPA™,
the MPA Gold™ performs to incredibly high
standards, and that it’s tone, functionality
and performance will satisfy even the most
discerning user.
Like the Digital MPA, the MPA Gold features
Variable Input Impedance. Variable Input
Impedance is intended to optimize the MPA Gold
for the widest range of microphones. Variation of
the input impedance of a microphone preamplifier
changes the load against which the microphone
has to push. This variation dramatically alters
the performance of a microphone,and creates
numerous sonic possibilities for microphone
performance. The variable impedance control
of the MPA Gold is infinitely variable, as opposed
to steps. This allows users much finer control
over the tuning of the impedance.
The selectable Tube Plate Voltage function
delivers a wide variety of tones. The tube circuit
is differential, and provides the equivalent of a
300V power supply on the high voltage setting.
Not to mention it has very low distortion and
noise. Our normal setting maintains ART’s
classic tube sound (warm with smooth
overload characteristics).
The MPA Gold’s unique tube circuitry utilizes two
12AX7A vacuum tubes and renders unsurpassed
sonic detail and clarity with the broadest range
of microphones. The 12AX7A tube preamplification
section provides gain while maintaining the
incredible dynamic range of the previous stage
and controlled overload characteristics.
Condenser microphones, ribbon microphones,
dynamic microphones – new and vintage –
all become more versatile and deliver their
maximum performance when they interact with
the MPA Gold’s Variable Input Impedance. You’ll
discover that your microphones will sound better
than ever.
In addition to the VU meters, the MPA Gold has
Tube Warmth LED Metering which measures
the left and right audio channel levels. The
meters act like a normal histogram for the
average signal level and the display holds the
highest LED on alone for one second. While the
average level function attack and release are
measured in milliseconds, the peak function
has a 20 microsecond attack time. Additionally,
the analog meter range is switchable between
-10dB and +4dBU.The MPA Gold’s High Pass
Filter is continuously variable from 15Hz to
150Hz. Many other preamps have a fixed
switch. This makes our MPA Gold more
flexible audio processor.
The MPA Gold is truly a modern, world-class
tube microphone preamplifier, and its audio
performance will surely exceed your expectations.
MPA GOLD FEATURES:
✔Variable Input Impedance For
Flexible Microphone Voicing
(150 Ohms to 3000 Ohms)
✔Selectable Tube Plate Voltage
✔Large VU Meters with Range
Switch
✔Tube Warmth LED Meter
✔Improved Discrete Class A Input
Microphone Preamplifier
✔Lower Noise At Low Gains, Wider
Frequency Response and Lower
THD Than our Pro MPA
✔Front Accessible Instrument
Input Jack With Very High Input
Impedance
✔Automatically Switches To
Instrument Input When You
Plug In

Applied Research & Technology •215 Tremont St., Rochester, NY 14608 •USA •585.436.2720 tel •585.436.3942 fax •www.artproaudio.com
From the innovative minds at ART.
From the innovative minds at ART.
SPECIFICATIONS
Dimensions: 6.5” D x 19.0” W x 3.5” H
Weight: 12 Lbs
Frequency Response: 15Hz to 120kHz (+0, -1dB)
Dynamic Range: >100dB (20Hz to 20kHz)
CMRR: >90dB (typical @ 1kHz)
THD: <0.005% (typical)
Equivalent Input Noise: -133dBu (XLR to XLR ‘A’ weighted)
Maximum Input Level: +20dBu (XLR), +17dBu (1/4”)
Input Impedance: 150-3K ohms (XLR), 840k ohms (1/4”)
Maximum Output Level: +28dBu (XLR)
Output Impedance: 47 ohms (XLR)
Maximum Gain XLR to XLR: 75dB
Power Requirements: 100-125VAC, 25W Export units configured
for country of destination
Controls: Input Gain, Impedance, Output level, and
High Pass Filter
Switches: +20dB gain, Phase Reversal, Plate
Voltage, Meter Sensitivity, Phantom
Power with LED switches
Analog Connections: Balanced XLR (pin 2 hot) inputs and
outputs and balanced 1/4” outputs (TRS),
unbalanced instrument inputs
APPLICATIONS:
✔Professional and Project
Recording Studios
✔FOH Sound Systems
✔Multitrack to Digital
Mixing/Mastering
✔Bass and Keyboard Rigs –
Tube Direct
✔Digital Audio Workstation
& Computer Recording
✔MIDI Recording and Samplers
✔Tube DI of Line Level Sources
Date:
ART Representative:
Notes:
ART Representative Information:
MPAGold™
2 CHANNEL MICROPHONE PREAMPLIFIER