The Pro MPA III is a versatile 2-channel multivoice microphone preamplifier that combines classic analog warmth with modern flexibility in a rugged 2U rackmount design. Each channel features discrete Class A FET microphone preamps with selectable 12AT7 tube or solid state voicing, allowing engineers to choose between rich tube character or clean, transparent performance. Designed to enhance the capabilities of mixers and audio interfaces, it accepts both XLR microphone and 1/4-inch instrument level inputs.
Each channel provides comprehensive control with variable input gain, microphone impedance, low cut filter, output level, 20 dB gain boost, phase reverse, and 48V phantom power. The Character switch enhances vocal intelligibility by improving low and high frequency response, while the expanded variable impedance range offers greater tonal flexibility when using dynamic and ribbon microphones. Instrument level DI inputs make the Pro MPA III equally capable for direct recording of guitars, basses, and keyboards.
The Pro MPA III also features balanced XLR and 1/4-inch outputs, selectable +4 dBu or -10 dBV operating levels, analog VU meters for precise monitoring, and a universal internal power supply. Built for professional studios, project studios, broadcast, and live recording environments, it delivers reliable analog performance with exceptional sonic versatility.
| Frequency Response |
15 Hz - 48 kHz (+0, -1 dB, Tube) 15 Hz - 120 kHz (+0, -1 dB, Solid State) |
|---|---|
| Dynamic Range | >110 dB (A-Weighted) |
| CMRR | >50 dB |
| Equivalent Input Noise | -128 dBu (XLR, A-Weighted) |
| Maximum Input Level | +19 dBu (XLR) |
| Maximum Instrument Input | +17 dBu |
| Input Impedance |
600Ω - 80 kΩ (XLR) 1 MΩ (1/4") |
| Maximum Output Level | +27 dBu (XLR, 1/4") |
| Output Impedance | <47Ω (XLR) |
| Maximum Gain | 70 dB |
| Meter Calibration |
0 VU = +4 dBu Output (+4 dBu Mode) 0 VU = -10 dBV Output (-10 dBV Mode) |
| Low Cut Filter | 10 Hz - 200 Hz (Single Pole) |
| Power Requirements |
100-240V~ 50/60 Hz 25W Rear-Mounted IEC Connector |
| Dimensions (H x W x D) | 3.5" (88.9 mm) x 19" (482.6 mm) x 8.75" (222.25 mm) |
| Weight | 10.5 lbs (4.7 kg) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
