The ART Digital MPA-II Mic Preamp with A/D Conversion bases its design on the ProMPA with that added versatility of a digital output. The MPA-II Mic Preamp delivers studio-grade pristine sound that delivers a warm and full-bodied tonal character. It also features variable input impedance settings which you can use to optimise the performance of a dynamic or ribbon microphone. It also can be toggled between n dual mono or stereo operation. At the core of the mic preamp are two integrated and hand-selected 12AX7 tubes providing tonal variation and the ability to switch between low or high plate voltage. The integrated A to D converter provides a wide range of digital connections ideal for bridging the gap between analog and digital gear. With its rack-mountable design and VU style meters the MPA-II is the perfect centrepiece for any studio.
Tube-based microphone preamp with A/D conversion Bridging the gap between analog and digital. Basing its design on its younger sibling (the ProMPA) with addition of the digital output. It comes jam-packed with controls and even features dual vintage-style VU meters. Each input features integrated 48V Phantom Power for use with studio-grade microphone such as condensers. At the heart of the MPA-II are dual hand-selected 12AX7 tubes. These high-end tubes provide wider preamp tonal variation delivering a unique character. It also gives you the ability to toggle between low or high plate voltages. It also features a high-grade A to D converter with the myriad of digital connections on offer. The front-panel features a wide range of analog and digital controls. For instance the digital section allows you to dictate the sample rate of the MPA-II as well as the dither. The sample rates range from 44.1KHz to 192KHz. The internal crystal-controlled oscillator will accurately generate the selected timing. The Mid/Side switch allows you to toggle between left/right information ideal for use with stereo recording. Optimise your ribbon/dynamic mic performance One of the most unique features of the MPA-II is the variable input impedance. You can use these control settings to optimise the performance of different microphones. From ribbon microphones to dynamic microphones the MPA-II will deliver the best possible sound every time. Versatile digital connectivity – bridge the gap The digital MPA-II is a hybrid microphone preamp employing both analog and digital connections. The rear of the unit features a wide range of digital connectivity including S/PDIF ADAT or AES/EBU outputs. It is the perfect mic preamp for the modern studio allowing you to use the microphone preamp with a wide range of digital and analog gear. The front-panel features a 1/4-inch instrument input with an impedance of >1M ohms and it can be adjusted via the input gain control. There is also balanced inputs and outputs on the rear of the unit. Features Variable input impedance for flexible microphone voicing (150 ohms To 2400 ohms) Large VU meters Discrete Class-A input microphone preamplifier Extremely low total harmonic distortion (THD) Additional front mounted instrument input jack Operate at +4dbm/-10dbv output Automatic instrument input selection 44.1K 48K 88.2K 96K 176.4K 192K internal sample rates Wide dynamic range A/D Separate analog and digital output level controls ADAT optical I/O Switch selectable optical output (S/PDIF or ADAT) Two wordclock jacks allowing loop through Selectable plate voltage Backlit function switches Low noise at lower gain settings Wide frequency response Support mid/side micing technique Selectable stereo/dual operation of output controls 24-204KHz external sample rate 24/16 bit switchable dithering Rotary encoder for quick selection of sample rate Digital level LED meters display both Average and Peak level Sync to incoming ADAT data range AES/EBU and S/PDIF outputs 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 percent (typical) Equivalent Input Noise: -129dBu (XLR “A” weighted) Maximum Input Level: +19dBu (cannon) Maximum Instrument Input: +17dBu Input Impedance: 150-3000 (Omega) adjustable (XLR) >800k (Omega) (Instrument) Maximum Output Level: +27dBu (XLR) Output Impedance: < 47 (Omega) (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 percent @1K (typical) A/D Input Sensitivity: +12dBu min A/D Insert Input Impedance: >10k (Omega) Power Requirements: USA – 105 to 125 VAC / 60 Hz Export units configured for country of destination Physical Dimensions (HxWxD): 3.50 x 19.0 x 8.75 inches Dimensions (HxWxD): 88mm x 482mm x 222mm Weight: 4.7kg (10.5 lbs)
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