ART Pro MPA II

The ProMPA II can operate at either a low or high plate voltage on the two integrated hand-selected 12AX7 tubes for wider variation of preamp tone and performance. Large back-lit analog VU output meters display output levels while multi-colored LED arrays show tube gain.

Housed in a standard 2u space rack-mountable steel chassis, with CNC routed black anodized aluminum face panel, the ProMPA II is designed to deliver years of reliable operation in the studio, production facility, or on the road for live sound reinforcement.

• Variable input impedance for flexible microphone voicing (150 Ohms to 2400 Ohms).
• Selectable plate voltage
• Large VU meters
• Front accessible meter trim
• Discrete class A input microphone preamplifier
• Low noise at low gains
• Low THD
• Wide frequency response
• Front accessible Instrument Input Jack
• Very high input impedance
• Mid/Side micing support
• +4dBm/-10dBV output level selection
• Switch selectable Stereo/Dual operation of the output controls
• Automatically switches to the instrument input when you plug in

Specifications

Frequency Response 15Hz to 48kHz (+0, -1dB) @ normal plate voltage 15Hz to 120kHz (+0, -1dB) @ high plate voltage

Total Harmonic Distortion <0.005% (typical)

CMRR > 90dB

Dynamic Range > 110dB (“A” weighted)

Equivalent Input Noise -129dBu (XLR, “A” weighted)

Input Impedance 150-3000 Ω adjustable (XLR), > 800K Ω (Instrument)

Maximum Gain 75dB

Maximum Input Level +19dBu (cannon)

Maximum Instrument Input +17dBu

Maximum Output Level +27dBu (XLR)

Output Impedance <47 Ω (XLR)

Meter Calibration 0 VU = +4dBu outupt (+4dB mode) / 0 VU = -10dBV output (-10dB mode)

High Pass Filter Single pole, 10-200 Hz adjustable

Power Requirements Export units configured for country of destination

Dimensions 222mm x 482mm x 88mm

Weight 4.5 kg