The Dan D’Agostino Momentum HD Preamplifier elevates high-end audio preamplification to new heights, signifying “High Dynamic” and “High Definition” performance. Its two-chassis design isolates the audio circuitry from a significantly upgraded power supply, which features a 33% larger transformer and outputs operating at 36% higher voltage for explosive dynamics. The fully discrete, complementary balanced circuit boasts a new differential FET input stage with ultra-high 1 MΩ impedance and zero global feedback, ensuring unparalleled detail retrieval and transparency.

Volume is controlled by a precise optical resistor network, offering pristine signal integrity. Connectivity includes six balanced XLR inputs and two balanced XLR outputs. An advanced Bluetooth remote provides extended range and eliminates line-of-sight issues, while the iconic front-panel meter displays volume and status. Housed in a stunning, precision-machined aluminum chassis with signature copper accents, the Momentum HD Preamplifier delivers a musical experience of striking clarity, richness, and dynamic realism.

Balanced Circuits for Maximum Bandwidth.
Like the Momentum amplifiers, the Momentum HD Preamplifier uses a complementary balanced circuit topology for maximum bandwidth and low noise. Its audio circuitry is fully discrete, with no op amps or integrated circuits. A Zero-feedback design assures the most musical sound quality. Volume adjustment is made through a resistor network governed by an optical controller—the cleanest, most transparent possible method of controlling volume.

Detail and Richness Throughout the Musical Range
A completely new discrete differential FET input stage features two current sources per leg and an input impedance greater than 1MOhm. This ultra-high input impedance isolates the input stage and thus the entire audio signal path from external variables.

This new input stage started as an engineering exercise that delivered exceptional results. Fine-grain detail and delicate musical shadings are rendered with a lushness and richness that were simply unattainable previously.

Striking Dynamics
Housed in a separate chassis for maximum isolation, the Momentum HD main power transformer is 33% larger as compared to the original Momentum Preamplifier. A unique winding technology, first employed in the Momentum M400 amplifier, delivers greater power output from the same footprint. Separate supplies power audio and control circuitry, so the control circuits are completely isolated from the audio circuits. Internal circuitry filters RF noise from the AC powerline and compensates for asymmetric power waveforms and DC on the main power line.

Taking advantage of the increased power supply capability, the output stages are now operating at a 36% percent higher voltage. The increased output voltage has opened up the dynamics on both the micro and macro level with contrasts striking in their speed.

Advanced Remote Control
Also new is the Bluetooth technology featured in the included remote control. The Bluetooth backbone extends the range of the remote by a factor of five and eliminates line of sight limitations that are inherent in IR remote controls.

Newly designed tone and volume control circuitry increases range and precision in both circuits.

The styling of the Momentum HD Preamplifier perfectly complements the Momentum M400 and S250 amplifiers, with copper accents matching the amplifiers’ unique copper heat sinks. The meter on the front face of the preamplifier indicates volume setting, polarity, and mute status. Front selector buttons illuminate indicating which input is active.

Existing Momentum Preamplifier owners will be able to upgrade to the new Momentum HD Preamplifier electronics enhancements.

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
Finish:Silver Black Custom Finishes Available Upon Request
Input Impedance:1 MΩ
Output Power: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

Orders ship Sunday through Friday from our offices in Dubai, UAE.

In-stock products typically ship within 48 hours and should be expected to arrive in 3-4 business days. Orders outside of the UAE should be expected to arrive in 5-7 business days.

Pre-order and backorder products will state the approximate delivery timeline beside the Add To Cart button.

If you would like to place a custom order, chat with our specialists for a guided shopping experience. Once your order has been placed, a timeline will be provided depending on your order details.

- Free delivery within the UAE
- Shipping charges will be calculated upon checkout for orders outside of the UAE (Bahrain, Oman, Kuwait, Saudi Arabia & Qatar).
- Taxes and duties are calculated according to the applicable laws of the state or country an item is shipped to and are the customer's responsibility.

For additional information on shipping and our exchange & return policy visit our help center.

Installation charges are applicable and can be paid upon delivery for our clients based in Dubai.

- Installation Charges: AED 450 Per Hour
- Speaker Cables: AED 32 Per Meter
- Trunking: AED 10 Per Meter

For clients based outside of the UAE, please contact our specialists and we will share an estimate based on your requirements.