This item comes as shown in the photographs. The unit is mint in the original box with all original accessories. 

I’ve had the pleasure of spending time with some incredibly well-engineered audio products over the years, but none have quite boggled me as much as in terms of the technology and sheer capabilities that Simaudio has managed to squeeze into their MOON 430HAD Headphone Amplifier + DAC. While the 430HAD has been on the market for some time now, having launched back in 2015, it remains to be one of the standout headphone amplifiers on the market by virtue of its power, features, and peerless heritage, coming from one of the world’s most renowned audio manufacturers - Canada’s Simaudio. 

The 430HAD benefits from “trickle-down” technology from some of Simaudio’s flagship products including their M-LoVo (Moon Low Voltage) DV regulation circuit to help reduce the amplifier’s noise floor, plus their M-eVOL2 volume control which has 530 increments of digitally-controlled analogue volume (more on that one later) and is channel matched to 0.1dB. 

To draw an analogy from a completely different industry, I can’t help but think of the F-22 Raptor - the US Air Force’s premier stealth fighter - when thinking about the MOON 430HAD. First conceived in the 1980s and designed in the early 90s, the F-22 made its maiden flight in its production form all the way back in 1997. Yet, to this day it remains utterly peerless in terms of its capabilities and technologies. Sure, it may cost a cool $350 million a unit (taking into consideration research and development), but much can be said for “over-engineering” something to the point that it remains at the top of the pecking order more than two decades later. 

The MOON 430HAD is a balanced headphone amplifier and DAC (the "standard" version, the 430HA is a purely analogue device minus the onboard DAC) featuring transconductance circuit technology, capable of sending a whopping 8 watts of power into 50 ohms and a very respectable 667 milliwatts into 600-ohm headphones. The 430HAD uses a fully-balanced differential amplifier design and features three different types of headphone output: standard 6.3mm single-ended, 4-pin XLR, plus the rarer dual-mono 2 x 3-pin XLR configuration for those headphone aficionados with a range of exotic high-end cables in their collection.

Two output levels of gain can be selected - either 14dB (low) or 20db (high), and the 430HAD also features an analogue crossfeed circuit which can be switched on or off depending on the owner’s listening preferences.

Simaudio is no stranger to the importance of supplying high-end audio gear with a proper power supply, being the manufacturer of dedicated power-supply equipment such as the Simaudio MOON 820S Power Supply. Appropriately, they’ve equipped the MOON 430HAD with an “oversized power supply” employing two MOON “Ultra Low Noise” toroidal transformers and no fewer than four stages of DC voltage regulation. Simaudio’s “M-LoVo” DC regulation circuit is the same high-end system employed on the far more expensive Simaudio MOON 810LP Reference Balanced Phono Preamplifier and Simaudio MOON 740P Preamplifier, so no expense has been spared when it comes to feeding the 430HAD with low-noise, stable DC voltage.

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