

We have for sale the Dan D’Agostino Momentum HD Preamplifier. Not an upgrade, built HD originally. A preowned piece in beautiful condition.
Our customer bought the preamplifier in September of 2020. The photograph of the room we treated that has the orange Wilson Audio Alexia V’s and orange Wilson Loke Subwoofers was taken a month or so ago before he upgraded to the new D’agostino C2 preamp. This friend and customer is a very passionate audiophile and takes great care of his gear. He’s been a customer for over 10 years.
The Momentum HD Preamp is and has:
Fully balanced
Theater bypass
Tone Controls
Dual Outputs
Separate Power Supply
Description:
The Dan D’Agostino Momentum HD Preamplifier is a triumph of engineering and refinement, elevating the already acclaimed Momentum Preamplifier to new heights. This “HD” iteration signifies a significant leap in high dynamic and high-definition performance. Meticulous upgrades in the input stage, power supply, audio circuitry, and control sections deliver a listening experience that surpasses previous benchmarks.
It comes with original accessories: Remote Control, Pelican Case, PDF Manual. Power cord.
Shipping paid for by buyer would be $499. Weight approx 105 lbs in case.
Contact us:
Email: audiogon-listings@audibleimagesav.com
Call Art: 321-750-3852
Available for local pickup.
Specifications:
Frequency Response: 0.1 Hz to 1 MHz, -1 dB / 20Hz to 20 kHz, ±0 dB
Signal-to-Noise Ratio: -105 dB, unweighted
Gain: +13 dB or +19 dB (switchable)
Input Impedance: 1 MΩ
Output Impedance: 10Ω
Power Consumption: <1 watt
Distortion (Full output): <0.006%, 20 Hz to 20 kHz
Inputs: 6 balanced XLR stereo
Outputs: 2 balanced XLR stereo
Dimensions (Preamp): 4.3 x 18 x 12 inches / 10.8 x 45 x 30 cm
Dimensions (Power Supply/Base): 3 x 11 x 8 inches / 7.5 x 27.5 x 20 cm
Key Features:
1.Balanced Circuits for Optimal Performance: Much like the Momentum amplifiers, the Momentum HD Preamplifier employs a complementary balanced circuit topology, ensuring maximum bandwidth and minimal noise. It boasts fully discrete audio circuitry without using op-amps or integrated circuits. The design features zero feedback for the most authentic and musical sound quality. Volume control is achieved through a resistor network controlled by an optical controller, ensuring a transparent and pristine volume adjustment.
2.Detail and Richness: The preamplifier introduces a redesigned discrete differential FET input stage with exceptional results. This stage features ultra-high input impedance, isolating the audio signal path from external factors. This enhancement renders fine-grain detail and delicate musical nuances with a previously unattainable richness.
3.Striking Dynamics: The Momentum HD Preamplifier incorporates a main power transformer that is 33% larger than its predecessor, employing a unique winding technology to deliver greater power output from the same footprint. The output stages operate at a 36% higher voltage, significantly enhancing micro and macro dynamics, resulting in a striking contrast and speed in musical delivery.
4.Advanced Remote Control: The included remote control utilizes Bluetooth technology, extending its range by a factor of five and eliminating line-of-sight limitations commonly found in IR remote controls. The tone and volume control circuits have also been newly designed to increase range and precision in both functions.
5.Aesthetic Excellence: The design language of the Momentum HD Preamplifier harmonizes seamlessly with the Momentum M400 and S250 amplifiers, featuring copper accents that complement the amplifiers’ distinctive copper heat sinks. The front panel meter indicates the volume setting, polarity, and mute status, while selector buttons indicate the active input.
My desire is to help design the perfect system just for you and within your desired budget!
Sincerely,
Ed Masterson, Owner/Engineer
Call: 321.626.3898

Audible Images
1610 Pineapple Ave.
Melbourne, Fl 32935

Office Hours:
Closed Monday
Tues : 12 – 5 pm
Wed : 12 – 5 pm
Thur : 12 – 5 pm
Fri : 12 – 5 pm
Sat : Appointment Only
Showroom Walk-In Hours:
Closed Sunday
Monday – Closed
Tuesday : 12 – 5 pm
Wednesday : 12 – 5 pm
Thursday : 12 – 5 pm
Friday : 12 – 5 pm
Saturday : Appointment Only
Other times are by appointment or luck.
Walk-in Hours are Tues - Fri - 12 - 5 Pm, SATURDAY BY APPT.