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.

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