DAN D'AGOSTINO Momentum HD Pre Amplifier

Neptune: 7 AWG Single Crystal CopperNeptune Single Wired is built around 7 AWG single crystal copper stranded conductors - SCC in Purist’s notation - with a P.E. dielectric and Fluid dampening.

DC current capacity is 74 A and resistance 0.000999 Ohm per foot. Purist estimate 300 hours of break-in, the longest of the speaker cables in this group.

Neptune: Four-Cable SetNeptune Single Wired comes as a four (4) cable set - an individual positive cable and an individual negative cable for each channel, rather than one jacket per side.

Outside diameter is 3/4 inch on the speaker cable and 7/8 inch on the bi-wire version. Custom configurations can be built to order.

Jade Phono: Luminist Revision ConnectorsJade Phono carries the Luminist Revision connectors: the RCA plugs were redesigned in beryllium copper with a thicker gold plating, and the XLR connectors improved with beryllium copper and gold plated pins.

All material is treated with the Triple (3x) Cryomag process.

TechnologyThe volume control is a patent-pending technology that allows perfect level matching with a much more transparent sound compared to potentiometers and switch resistor technology, because there is no attenuation of the input signal, just an automatic selection of a tap on the Nagra custom output transformer.

The newly developed SuperCapacitor power supply is a new technology which combines the very low noise of a battery with the high current capability of the best linear power supplies.

The audio engineers created a super vibration-free stand to lower the microphonic resonances to a new level.

GaN Systems TechnologyAt the heart of the Harmony GaNM lies a technology that represents a genuine leap forward in amplifier design. GaN transistors switch at speeds that traditional silicon simply cannot match. Where conventional silicon-based amplifiers struggle with switching losses and the distortion that accompanies them, GaN FETs operate with lower losses, significantly reduced distortion, lower thermal stress and a faster transient response.

For a Class D monoblock amplifier, this matters profoundly. Faster switching translates directly into cleaner transients, deeper bass, and more refined detail, especially at low-level passages where precision matters most.

Modular Technology and iTRONAll the electronics are housed in easily replaceable technology modules connected via a High Performance Multi Contact Connector. So you can easily expand or upgrade your system even after many years - and a semi-active TRIO can be upgraded to the fully active iTRON version at any time.

iTRON is our patented Game Changer technology, where we directly control the acceleration of the diaphragms through a perfectly orchestrated current flow rather than a voltage. The iTRON module delivers 3 x 100 watts in a fully balanced, single-ended, zero-feedback circuit.