Moon by Simaudio Neo 230HAD D/A headphone amplifier Specifications

Sidebar 1: Specifications

Description: Solid-state D/A headphone amplifier and line preamplifier. Inputs: two pairs analog (one pair RCA, one pair 3.5mm stereo jack), four digital (TosLink and two coaxial S/PDIF, USB). Outputs: two pairs RCA (one pair fixed, one pair variable), ¼" headphone jack. Sample rate compatibility: PCM from 32kHz to 384kHz, DSD64, 128, 256. Bit depths supported: 16–24, S/PDIF, 16–32, USB. Power output: 1W into 50 ohms, 200mW into 300 ohms, 100mW into 600 ohms. Input impedance: 22k ohms. Output impedance: 1.25 ohms. Recommended headphone impedance: 20–600 ohms. Frequency response: 20Hz–20kHz, ±0.1dB, 5Hz–100kHz, +0/–3dB. THD at 1kHz, 0dBFS (A-weighted): 0.005%. Intermodulation distortion: 0.005%. Signal/noise ratio: 115dB. Channel separation: 80dB.
Dimensions: 7" (178mm) W by 3" (76mm) H by 11" (280mm) D. Shipping weight: 6.2 lbs (2.8kg).
Finish: Black.
Serial number of unit reviewed: Q10227318.
Price: $1499. Approximate number of dealers 85. Warranty: 10 years.
Manufacturer: Simaudio Ltd., 1345 Newton Road, Boucherville, Quebec J4B 5H2, Canada. Tel: (450) 449-2212. US: Simaudio Ltd., 2002 Ridge Road, Champlain, NY 12919. Web:

Simaudio Ltd.
1345 Newton Road
Boucherville, Quebec J4B 5H2
(450) 449-2212

philipjohnwright's picture

It's what differentiates SF; writers like Herb, the much-missed SM, and the too-early-to-say-but-showing-distinct-promise Jana. Along with all the old (sorry guys) favourites

Keep them coming please John; earnest, humourless,colourless reviewers abound elsewhere; don't let them through the door here.

woodford's picture

you're probably already familiar, but there are wonderful 60s era phillips recordings of the Beethovem, Brahms, and Mendelssohn concerti with Haitink conducting. the Brahms is a particular favorite.

fourpobs's picture

As finish my coffee and get ready to put my butt-kissing suit on for a day in the corporate mines, the first couple paragraphs remind me there must be a way to make a living, have good audio and know interesting, inspiring people(perhaps even be an interesting person. Maybe even a "character"). I will read the rest of the article later on but thanks for that.

Anton's picture

Would this pass as a part of the definition of 'euphonic?'

"Even close-miked instruments are surrounded by a bit of moist air. The microZOTL's transparency surrounds instrumental tones with a kind of vibrating aura."

If it does that to everything, then it would strike me as being 'artifactual.'

Prediction: I think some key words that will appear in the Pass Labs review will be: composed, unruffled, effortless, matter of fact (in the best way, as in 'it possessed a matter of fact control and level of detail that made everything it did seem effortless.')

I really hope you like it. I think Pass Labs' amplification would be on my ownership list if I had adequate scratch!

Cheers, and thanks for a fun all around review!

audiodoctornj's picture

Herb a great review on, no doubt a great product, I would like to call your attention to, the Nuprime DAC 10H which is only $200 dollars more, than the Sim product you reviewed.

[Advertising copy deleted by John Atkinson]

We, Audio Doctor, have the Nuprime on display and have been supporting the first iteration of the company, Nuforce, and now in its second incarnation, Nuprime for years.

[Advertising copy deleted by John Atkinson]

Herb I would love to have you over to the shop to hear the Nuprime for yourself we are only three miles away from you, it is really something special.

Peragulator's picture

No balanced out for headphones?