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D'AGOSTINO Momentum Phonostage
High-End phono preamp.
Inputs: 4 XLR/RCA, 2 MC, 2 MM (front-panel selectable)
Outputs: 1 balanced XLR pair
Gain: 70 dB (MC), 50 dB (MM), adjustable ±6 dB
Equalisation: 5 curves (RIAA, FFRR, RCA Orthophonic, Columbia, DGG)
Loading: 16 resistive/capacitive options for MC and MM
Frequency: ±0.2 dB (20 Hz - 20 kHz)
Separate power supply for maximum isolation
Extreme accuracy and versatility in analogue reproduction
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Dan D'Agostino Master Audio picks his challenges and goes above and beyond
Combining the best possible analog circuitry with the precision of digital control. Each setting is located on the front panel of the Momentum Phonostage, with its own LED readout. The buttons on the front precisely control the gain, the resistive load for the two MC inputs, the resistive and capacitive load for the MM input, and the drive equalization curve.
Knowing that even the best circuitry is no better than the electricity that powers it, the Momentum Phonostage uses a special AC power supply. There is not one, but two separate power components: a transformer that sits on the ground, and power regulation and rectification circuitry built into the base on which the Phonostage sits. Thus, the sensitive circuitry of the phono preamplifier is doubly isolated from the transformer electrically, and also separated by a safe physical distance.
The Momentum Phonostage has numerous inputs to handle multiple tonometers and turntables. It has two moving coil inputs and two moving magnet inputs, each with XLR and RCA jacks, plus XLR and RCA outputs. The Momentum Phonostage was born without limitations.
Like all other Dan D'Agostino Master Audio Systems products, each Momentum Phonostage is hand built in the Arizona factory.
Technical specifications
Inputs: 4x via XLR and RCA, 2x moving coil, 2x moving magnet; inputs selectable from front panel
Outputs 1 pr Balanced outputs via XLR
Gain: 70dB moving coil, 50dB moving magnet
Input Regulation:
1Khz typical for 70cM/sec recording rate, gain set to "0" .
MC 6mV
MM 6mV
Equivalent input noise, 20 to 20kHz < 60nV
Equivalent input sound current: None
Gain adjustment is +/- 6dB and can be selected from the front panel
Equalization curves: 5 selectable available on the panel frontal; they include the standard RIAA equalization curves and 4 alternatives used by various record labels.
Available curves are RIAA, FFRR, Orthophonic RCA, COLUMBIA, DGG
Frequency Response: +/- .2 dB from 20 Hz to 20 kHz.
Load: 16 selectable resistive loads for moving coil and moving magnet
16 selectable capacitive loads for moving magnet inputs
Power Supply: The base of the phono stage houses critical power supply rectification circuitry, while a third chassis houses the power transformer for maximum isolation from electromagnetic fields generated by AC.
Separate Dimensions:
Main: 15.5 x 12.75 x 3 1/2
Power Supply: 13.5 x 11 x 2.5
Overall Height: 7
Transformer Box: 4 x 10.5 x 2
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