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ART Digital MPA II Two Channel Microphone Pre-amplifier
The ART Digital MPA II is a two-channel mic preamp with A/D conversion.
Main Features
- 2-channel Tube Microphone Preamplifier
- 48V Phantom Power
- Selectable Input Impedance
- 24-bit/192kHz A/D Converter
- Analog and Digital Outputs
- VU Metering
- Word Clock I/O
- Read More
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The all new ART Digital MPA-II delivers all of the same great features of the ProMPA with the added versatility of digital output. Like the ProMPA-II, each input circuit has 48v phantom power and features variable input impedance which can radically vary the overall performance of any high quality dynamic or ribbon microphone. The Digital MPA-II can be configured for dual mono or stereo operation with selectable mid/side mic support, summing the adjacent channel, to decode left/right signals.
The input section of the Digital MPA-II operates at either a low or high plate voltage applied to the two integrated hand-selected 12AX7 tubes for wider variation of preamp tone and performance. Large back-lit analogue VU output meters display output levels while multi-colored LED arrays, with average or peak hold, show tube gain and digital output levels.
In addition to XLR and 1/4-inch analogue outputs, the Digital MPA-II features a high quality A to D converter which offers digital connectivity on S/PDIF, ADAT, or AES/EBU outputs. A rotary control on the front panel allows selection of format and sample rates from 44.1 to 192 KHz and 16 bit dithering. There is also a push button for, and two wordclock jacks, allowing loop-through.
The Digital MPA-II comes in a standard 2u space rack-mountable steel chassis, with CNC routed black anodized aluminum face panel.
Additional features include:
Variable Input Impedance For Flexible Microphone Voicing (150 Ohms To 2400 Ohms)
Selectable Plate Voltage
Large VU Meters
Backlit Function Switches
Discrete Class-A Input Microphone Preamplifier
Low Noise at Lower Gain Settings
Extremely Low Total Harmonic Distortion (THD)
Wide Frequency Response
Additional Front Mounted Instrument Input Jack
Supports Mid/Side Miking Technique
Operates at +4dbm/-10dbv Output
Selectable Stereo/Dual Operation of Output Controls
Automatic Instrument Input Selection
24-204KHz External sample rate
44.1K, 48K, 88.2K, 96K, 176.4K, 192K Internal sample rates
24/16 bit switchable dithering
Wide dynamic range A/D
Rotary Encoder for quick selection of sample rate
Separate analogue and digital output level controls
Digital Level LED meters display both Average and Peak level
ADAT optical I/O
Sync to incoming ADAT data rate
Switch selectable optical output (S/PDIF or ADAT)
AES/EBU and S/PDIF outputs
Two wordclock jacks allowing loop through
Specifications:
Analog Section:
Frequency Response 15Hz to 48 kHz (+0, -1dB) @ normal plate voltage
15Hz to 120 kHz (+0, -1dB) @ high plate voltage
Dynamic range: >110dB ('A' weighted)
CMRR: >90dB
THD: <0.005% (typical)
Equivalent Input Noise: -129dBu (XLR, 'A' weighted)
Maximum Input Level: +19dBu (cannon)
Maximum Instrument Input: +17dBu
Input Impedance: 150-3000 Ohms adjustable (XLR)
>800K Ohms (Instrument)
Maximum Output Level: +27dBu (XLR)
Output Impedance:: <47 Ohms (XLR)
Maximum Gain: 75dB
Meter Calibration: 0 VU = +4dBu output (+4dB mode)
0 VU = -10dBV output (-10dB mode)
High Pass Filter: single pole, 10-200 Hz adjustable
Digital Section:
A/D Frequency Response:
@44.1KHz sample rate: 10Hz to 21.25KHz (+0, -1dB)
@88.2KHz sample rate: 10Hz to 42.50KHz (+0, -1dB)
@196KHz sample rate: 10Hz to 81KHz (+0, -1dB)
A/D Dynamic Range: >112dB 'A' weighted (typical)
A/D THD: <0.001% @1K (typical)
A/D Input Sensitivity: +12dBu min
A/D Insert Input Impedance: >10K Ohms
Power Requirements: USA - 105 to 125 VAC / 60 Hz Export units configured for country of destination
Dimensions: (HxWxD in) 3.50 x 19.0 x 8.75
Dimensions: (HxWxD mm) 88 x 482x 222
Weight: (lb/kg) 10.5 / 4.7
